Please Help Fast!!!!!!!!!!!!!!!!!!!!!!!!!

Please Help Fast!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer 1

The number of solutions that are there for the pair of equations for lines Q and S is zero solution (no solution) because the lines are parallel with no point of intersection.

What is no solution?

In Mathematics and Geometry, no solution is sometimes referred to as zero solution, and an equation is said to have no solution when the left hand side and right hand side of the equation are not the same or equal.

This ultimately implies that, a system of equations would have no solution when the line representing each of the equations are parallel lines and have the same slope i.e both sides of the equal sign are the same and the variables cancel out.

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Related Questions

The three inner circles are congruent

which measurement is closest to the

area of the largest outside circle in

square centimeters?

a 56. 52 cm

b 254. 34 cm

113 04 cm

5 cm

1,017 36 cm

Answers

The area of the largest outside circle in square centimeters is closest to e)1,017.36 cm².

The area of the largest circle is equal to the sum of the areas of the three inner circles and the area of the white region between them. Since the three inner circles are congruent, we can divide the white region into three equal parts. Let the radius of each inner circle be 'r'. Then, the radius of the largest circle is '3r'.

The area of the white region is the difference between the area of the square and the sum of the areas of the three congruent sectors. The area of each sector is (1/6)πr².

Therefore, the area of the white region is (9/4) r². Finally, we can use the formula for the area of a circle to find the area of the largest circle: A = π(3r)² + 3(1/6)πr² - (9/4) r² = (63/4)πr². If we substitute the value of r as 6 cm (since the diameter of the inner circle is 12 cm), we get the area of the largest circle as (63/4)π(6)² ≈ 1,017.36 cm²(e).

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The distance from Atlanta, Georgia, to Boise, Idaho is 2,214 miles. The distance from Atlanta, Georgia, to Houston, Texas is 789 miles. How much farther is it from Atlanta to Boise than from Atlanta to Houston?

Answers

Answer:

1,425 miles

Step-by-step explanation:

To find out how much farther it is from Atlanta to Boise than from Atlanta to Houston, we need to subtract the distance from Atlanta to Houston from the distance from Atlanta to Boise:

[tex]\sf:\implies 2,214\: miles - 789\: miles = \boxed{\bold{\:\:1,425\: miles\:\:}}\:\:\:\green{\checkmark}[/tex]

Therefore, it is 1,425 miles farther from Atlanta to Boise than from Atlanta to Houston.

y= 3x-2 y= 9x+ 10 find x, y​

Answers

Answer:

(-2,-8)

Step-by-step explanation:

First, we have to make these linear equations into standard form:

-3x+y=-2

and

9x-y=-10

Now we tell my using elimination method, we can cross out the y variables because when added(y+(-y)) is just 0, so we just cross them out

Add liked terms

6x=-12

Solve for X:

X=-2

Plug 2 for X in any equation (lets do -3x+y=-2)

Plug in -2 for X:

-3(-2)+y=-2

Thus we get 6+y=-2

Solve for Y:

y=-8

Now that we have both our variables, we know that the answer is (-2,-8)

Which expression represents the surface area of the prism?

Choose 1 answer:

Choose 1 answer:

(Choice A)

2



6

+

12

+

8

+

8

2⋅6+12+8+82, dot, 6, plus, 12, plus, 8, plus, 8

A

2



6

+

12

+

8

+

8

2⋅6+12+8+82, dot, 6, plus, 12, plus, 8, plus, 8

(Choice B)

2



3

+

3



8

2⋅3+3⋅82, dot, 3, plus, 3, dot, 8

B

2



3

+

3



8

2⋅3+3⋅82, dot, 3, plus, 3, dot, 8

(Choice C)

3

+

3

+

12

+

8

+

8

3+3+12+8+83, plus, 3, plus, 12, plus, 8, plus, 8

C

3

+

3

+

12

+

8

+

8

3+3+12+8+83, plus, 3, plus, 12, plus, 8, plus, 8

(Choice D)

12

+

12

+

12

+

3

+

3

12+12+12+3+312, plus, 12, plus, 12, plus, 3, plus, 3

D

12

+

12

+

12

+

3

+

3

12+12+12+3+3

Answers

Options A and C are ruled out because they don't even represent legitimate expressions for a prism's surface area.   [tex]12 + 12 + 12 + 3 + 3.[/tex]Thus, option D is correct.

What is the surface area of the prism?

The expression that represents the surface area of the prism depends on the dimensions of the prism. However, we can use the formula for the surface area of a rectangular prism, which is:

Surface Area [tex]= 2lw + 2lh + 2wh[/tex]

where l is the length, w is the width, and h is the height of the prism.

Looking at the answer choices:

A)[tex]2.6 + 12 + 8 + 8 = 28.6[/tex]

B)[tex]2.3 + 3.8 = 6.1[/tex]

C)[tex]3 + 3 + 12 + 8 + 8 = 34[/tex]

D)[tex]12 + 12 + 12 + 3 + 3 = 42[/tex]

We can eliminate options A and C because they are not even valid expressions for the surface area of a prism.

Option B is a valid expression for the surface area, but it is not simplified.

Option D is also a valid expression for the surface area, and it is simplified.

Therefore, the answer is (D)  [tex]12 + 12 + 12 + 3 + 3.[/tex]

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The length of a rectangle is 6 ft longer than its width. if the perimeter of the rectangle is 64 ft, find its length and width

Answers

The length of the rectangle is 19 feet and its width is 13 feet.

Let's denote the width of the rectangle by w. Then, according to the problem statement, the length of the rectangle is 6 feet longer, which means it is equal to w + 6.

The perimeter of a rectangle is given by the formula:

perimeter = 2 × length + 2 × width

Substituting the expressions for length and width that we have just found, we get:

64 = 2 × (w + 6) + 2w

Simplifying the right-hand side:

64 = 2w + 12 + 2w

64 = 4w + 12

52 = 4w

w = 13

So the width of the rectangle is 13 feet. Using the expression for the length we found earlier, the length is:

length = w + 6 = 13 + 6 = 19

Therefore, the length of the rectangle is 19 feet and its width is 13 feet.

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Evaluate the definite integrals ∫(9x^2 - 4x - 1)dx =

Answers

Definite integral of ∫(9x^2 - 4x - 1)dx from a to b is 3(b^3 - a^3) - 2(b^2 - a^2) - (b - a).

To evaluate the definite integral ∫(9x^2 - 4x - 1)dx, you need to first find the indefinite integral (also known as the antiderivative) of the function 9x^2 - 4x - 1. The antiderivative is found by applying the power rule of integration to each term separately:
∫(9x^2)dx = 9∫(x^2)dx = 9(x^3)/3 = 3x^3
∫(-4x)dx = -4∫(x)dx = -4(x^2)/2 = -2x^2
∫(-1)dx = -∫(1)dx = -x
Now, sum these results to obtain the antiderivative:
F(x) = 3x^3 - 2x^2 - x
∫(9x^2 - 4x - 1)dx from a to b = F(b) - F(a)

To evaluate the definite integral ∫(9x^2 - 4x - 1)dx =, we need to use the formula for integrating polynomials. Specifically, we use the power rule of integration, which states that ∫x^n dx = (x^(n+1))/(n+1) + C, where C is the constant of integration.
Using this formula, we integrate each term in the given expression separately. Thus, we have:
∫(9x^2 - 4x - 1)dx = (9∫x^2 dx) - (4∫x dx) - ∫1 dx
                  = 9(x^3/3) - 4(x^2/2) - x + C
                  = 3x^3 - 2x^2 - x + C
Next, we need to evaluate this definite integral. A definite integral is an integral with limits of integration, which means we need to substitute the limits into the expression we just found and subtract the result at the lower limit from the result at the upper limit. Let's say our limits are a and b, with a being the lower limit and b being the upper limit. Then, we have:
∫(9x^2 - 4x - 1)dx from a to b = [3b^3 - 2b^2 - b] - [3a^3 - 2a^2 - a]
                                              = 3(b^3 - a^3) - 2(b^2 - a^2) - (b - a)
Therefore, the definite integral of ∫(9x^2 - 4x - 1)dx from a to b is 3(b^3 - a^3) - 2(b^2 - a^2) - (b - a).

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The ratio of boys to girls in mrs. Cunninghams class is 2 to 3, there are 18 girls in the class. What is the total number of students in mrs. Cunninghams class

Answers

The total number of students in Mrs. Cunningham's class is 30.

From the question we know that the ratio of boys to girls in Mrs. Cunningham's class is 2 to 3 so we can write

no.of boys: no.of girls = 2:3

The total number of girls in the class is given as 18 so with this we can find out the number of boys in the class that is :

no.of boys= (2/3)*no.of girls in class

now after substituting the values in the equation, we get

no. of boys = (2/3) * 18

no.of boys = 12.

So, now we know the number of boys in the class that is 12 and the number of girls in the class is 18.

We can calculate the total number of students in the class which is equal to

= no.of boys + no.of girls.

= 12+18

=30

Therefore, the total number of students in Mrs. Cunningham's class is 30.

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Let f: R+R be a function that satisfies O 0. (a) Show that the series cosh(f(n)) ne1 diverges regardless of the rule for f. (b) Show that the series ( f(n) 2n3 - 1 converges regardless"

Answers

As we have proved that the series cosh(f(n)) ne1 diverges regardless of the rule for f, and that the series f(n) 2n³ - 1 converges regardless of the rule for f.

The comparison test states that if the terms of a series can be bounded below by a divergent series, then the given series also diverges.

In this case, we can bound the terms of cosh(f(n)) below by the series eⁿ. To see why, note that cosh(x) >= 1 for all x > 0. Thus, we have cosh(f(n)) >= 1 for all n. On the other hand, we know that e^x > 1 for all x > 0. Therefore, we have eⁿ > 1 for all n.

Since eⁿ diverges by the assumption that f satisfies O<f(), the comparison test tells us that cosh(f(n)) ne1 also diverges. Thus, the series cosh(f(n)) ne1 diverges regardless of the rule for f.

Moving on to the second part of the question, we are asked to show that the series ( f(n) 2n3 - 1 converges regardless of the rule for f. Again, we can use the comparison test to show convergence.

We can bound the terms of the given series by the series 1/n². To see why, note that for all n > 1, we have f(n) > 0 since the domain of f is restricted to R+. Thus, we have f(n)² < f(n) 2n³ - 1. Dividing both sides by n⁶, we get f(n)²/n⁶ < ( f(n) 2n³ - 1)/n⁶.

Now, note that the series 1/n² converges by the p-test (which states that the series 1/nᵃ converges if p > 1).

Therefore, by the comparison test, the series ( f(n) 2n³ - 1 also converges regardless of the rule for f.

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Complete Question:

Let f: R+R be a function that satisfies O<f() So for all x > 0. (a) Show that the series cosh(f(n)) ne1 diverges regardless of the rule for f. (b) Show that the series ( f(n) 2n3 - 1 converges regardless of the rule for f.

6. (2.5 pts) at the beginning of week 5, they broke up. jack wanted to run off to the city with
diane, but diane said he was crazy. unfortunately, their relationship ended. both were
angry with each other. suppose we could somehow quantify and measure anger. let's
call the units "anger units". on the day of the break-up, jack had 100 anger units. every
week he lost 5% of his anger. recall that the growth factor needs to be the amount that
"stays on" jack (not the 5% that "comes off" jack). for example, after 1 week, he had 95
anger units. after 2 weeks he had 90.25 anger units, and so on. write an equation that
models jack's anger (let that be )) after t weeks.

Answers

We'll model Jack's anger in anger units after t weeks using an exponential decay equation, as he loses 5% of his anger every week.

To write an equation that models Jack's anger (let that be A(t)) after t weeks, we need to follow these steps:

1. Identify the initial amount of anger units (A0): Jack had 100 anger units at the beginning (t=0).
2. Determine the growth factor (1 - decay rate): Since Jack loses 5% of his anger every week, the growth factor is 1 - 0.05 = 0.95.
3. Set up the exponential decay equation: A(t) = A0 * (growth factor)^t.

By following these steps, the equation modeling Jack's anger after t weeks is:

A(t) = 100 * (0.95)^t

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1 pts How much bubble wrap is needed to cover a cylindrical vase that is 16 inches tall with a diameter of 6 inches?​

Answers

415 square inches of bubble wrap to cover the cylindrical vase that is 16 inches tall with a diameter of 6 inches.

To calculate how much bubble wrap is needed to cover the cylindrical vase, you will need to find the circumference and height of the vase.

First, calculate the circumference of the vase using the diameter of 6 inches:
Circumference = π x diameter
Circumference = 3.14 x 6
Circumference = 18.84 inches

Next, calculate the height of the vase which is given as 16 inches.

To find the surface area of the vase, you will need to multiply the circumference by the height and add the area of the circular bases. The formula for the surface area of a cylinder is:

Surface area = 2πr² + 2πrh
where r is the radius and h is the height.

Since the vase has circular bases, we can find the area of each base by using the formula:
Area of circle = πr²

Now, let's find the radius of the vase:
[tex]Radius = \frac{diameter}{2}[/tex]
[tex]Radius = \frac{6}{2}[/tex]
Radius = 3 inches

So, the area of each base is:

Area of base = π x (radius)²
Area of base = π x 3²
Area of base = 28.27 square inches

The total area of the two bases is 2 x 28.27 = 56.54 square inches.

Now, let's find the surface area of the cylinder:

Surface area = 2πr² + 2πrh
Surface area = 2 x π x 3² + 2 x π x 3 x 16
Surface area = 113.1 + 301.44
Surface area = 414.54 square inches

Therefore, you would need approximately 415 square inches of bubble wrap to cover the cylindrical vase that is 16 inches tall with a diameter of 6 inches.

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1. The Daily Statesman newspaper costs $6. 00 per week. The newspaper currently has 700


subscribers. The newspaper wants to increase its revenue and estimates that it will lose 40


customers for every $0. 75 increase in price. What weekly subscription price will maximize the


newspaper's weekly income? Round the answer to the nearest hundredth.

Answers

The newspaper should increase its subscription price by $2.19 to maximize its weekly income and the new subscription price would be  $8.19 per week.

To maximize the newspaper's income, we need to find the price that will result in the highest revenue. Let's assume that the newspaper increases the subscription price by x dollars.

Then the revenue R(x) can be expressed as:
R(x) = (700 - 40x) * (6 + 0.75x)

Expanding the expression, we get:

R(x) = 4200 + 1050x - 240x^2

To find the price that maximizes revenue, we need to find the value of x that maximizes R(x). We can do this by taking the derivative of R(x) with respect to x and setting it equal to 0:

dR/dx = 1050 - 480x = 0

Solving for x,

x = 1050/480 = 2.1875

Therefore, the newspaper should increase its subscription price by $2.19 to maximize its weekly income. The new subscription price would be:

6 + 2.19 = $8.19 per week.

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What type of model does the data suggest?


x: 0,1,2,3,4


y: 2. 5,5,10,20,40



either constant, exponential or linear

Answers

The data suggests that the model is exponential.

When we look at the values of y, we see that they are increasing at a much faster rate as x increases. For example, when x increases from 1 to 2, y doubles from 5 to 10, and when x increases from 3 to 4, y doubles from 20 to 40. This is a characteristic of exponential growth where the rate of increase gets larger and larger as the quantity being measured gets larger.

We can also see this by looking at the ratio of consecutive terms in the y values. For example, the ratio of y(1) to y(0) is 5/2.5 = 2, and the ratio of y(2) to y(1) is 10/5 = 2, indicating a constant ratio. This is a characteristic of exponential functions where the ratio between consecutive terms is constant.

Therefore, based on the rapid growth rate and the constant ratio of consecutive terms, we can conclude that the model for this data is exponential.

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David wants to buy a new bicycle that cost $295 before a 40% discount. He finds the cost


after the discount, in dollars, by evaluating 295 - 295(0. 40). His brother Michael finds the


same cost by evaluating 295(1 - 0. 40). What property can be used to justify that these two


expressions represent the same cost after the discount?

Answers

The expressions represent the same cost after the discount of 40%.

How to show that the two expressions 295 - 295(0.40) and 295(1 - 0.40) represent the same cost after the discount?

To show that the two expressions 295 - 295(0.40) and 295(1 - 0.40) represent the same cost after the discount, we can use the distributive property of multiplication over addition or subtraction.

The distributive property states that for any real numbers a, b, and c:

a(b + c) = ab + ac

a(b - c) = ab - ac

So, we can apply the distributive property as follows:

295 - 295(0.40)

= 295(1) - 295(0.40) [Multiplying 295 by 1]

= 295(1 - 0.40) [Using the distributive property]

Therefore, both expressions represent the same cost after the discount of 40%.

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An aquarium is 25 inches long, 12 1 half inches wide, and 12 3 over 4 inches tall. what is the volume of the aquarium?

hint: v= lwh


volume = length x width x height

Answers

Answer is: 3,984.375 cubic inches

To help you calculate the volume of the aquarium. Using the formula

V = L x W x H, where V is volume, L is length, W is width, and H is height:

Length (L) = 25 inches
Width (W) = 12.5 inches (12 + 0.5)
Height (H) = 12.75 inches (12 + 3/4)

Now, plug these values into the formula:

Volume (V) = 25 x 12.5 x 12.75
V = 3,984.375 cubic inches

The volume of the aquarium is 3,984.375 cubic inches.

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Which trigonometric function is equivalent to sec(-270) ?

Answers

The trigonometric function equivalent to sec(-270) is -1.

The secant function is defined as the reciprocal of the cosine function, i.e., sec(x) = 1/cos(x). To find the value of sec(-270), we need to first find the cosine of -270 degrees. The cosine function has a period of 360 degrees, which means that cos(-270) is the same as cos(-270 + 360) = cos(90) = 0. Therefore, we have sec(-270) = 1/0, which is undefined.

However, we can determine the sign of sec(-270) by examining the quadrant in which the angle -270 degrees lies. Since -270 degrees is in the fourth quadrant, the cosine function is negative in that quadrant. Therefore, we can write sec(-270) = -1/0-, which is equivalent to -1. Hence, the trigonometric function equivalent to sec(-270) is -1.

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The probability that Mr Smith will have coffee with his breakfast is 0. 35. Find the probability that in the next 25 mornings, Mr Smith will have coffee on exactly 8 mornings

Answers

The probability that Mr Smith will have coffee on exactly 8 mornings out of the next 25 is 0.142, or 14.2%.

This scenario can be modeled by a binomial distribution, where:

The probability of success (having coffee) on any given morning is p = 0.35

The number of trials (mornings) is n = 25

The number of successes (mornings with coffee) we want to find the probability for is k = 8.

The probability mass function for a binomial distribution is given by:

[tex]P(X = k) = (n \: choose \: k) \times p^k \times (1-p)^{(n-k)},[/tex]

where (n choose k) is the binomial coefficient, which represents the number of ways to choose k items out of n. It can be calculated as:

(n choose k) = n! / (k! × (n-k)!)

Using this formula and putting in the values we have,

[tex]P(X = 8) = (25 \: choose \: 8) \times 0.35^8 \times (1-0.35)^{(25-8)} [/tex]

[tex]P(X = 8) ≈ 0.142[/tex]

Therefore, the probability that Mr Smith will have coffee on exactly 8 mornings out of the next 25 is approximately 0.142, or 14.2%.

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A park maintenance person stands 16 m from a circular monument. Assume that her lines of sight form tangents to the monument and make an angle of 56°. What is the measure of the arc of the monument that her lines of sight intersect?

Answers

The measure of the angle of the near arc of the monument that her lines of sight intersect with is 124°

What is the angle of an arc of a circle?

The angle of an arc of a circle is the angle formed by the two radii of the circle that intersects with the boundaries of the arc

The distance the park maintenance person stands from the monument = 16 m

The angle the lines of sight from the maintenance person that are tangent with the monument make where they intersect = 56°

Whereby the tangent lines from the monument to the maintenance person intersect and form an angle of 56°, we get that the tangent lines form two right triangles, please see the attached figure which is created with MS Excel;

The right triangles ΔABO and ΔACO are congruent by Leg Hypotenuse, LH, congruence rule

Therefore; ∠OAC ≅ ∠OBC

m∠OAC = m∠OBC (Definition of congruent angles)

Similarly, m∠BOA = m∠COA

However, m∠BAC = m∠OAC  + m∠OBC (Angle addition postulate)

m∠BAC = 2 × m∠OAC = 56°

m∠OAC = 56° ÷ 2 = 28°

m∠BOA = 90° - m∠OBC (Acute angles of a right triangle)

m∠BOA = 90° - 28° = 62°

Therefore, m∠BOA = m∠COA = 62°

The angle at the center = m∠BOC = m∠BOA + m∠COA

m∠BOC = 62° + 62° = 124°

Angle formed at the center of the monument, m∠BOC = 124°

The arc angle of a circle = The angle the radius of the arc forms at the center of the circle.

The measure of the arc close to the park maintenance person is 124°

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PLSS HELPP!! The diagram shown is two intersecting lines. The measure of ∠2 is 29 degrees.

(a) What is the measure of ∠4? how do you know? Explain your answer in complete sentences.

(b) Suppose the measure of ∠3 can be represented by (3x - 8). What equation can be written to solve for the value of x?

(c) What is the value of x? show all work

Answers

The measure of ∠4 is 151°.

The equation that can be used to solve for the value of x is: 3x - 8 = 151°

The value of x is 53.

What is the measure of ∠4?

(a) The measure of ∠4 is found as follows:

∠2 + ∠4 = 180° ( sum of angles on a straight line)

However, ∠2 = 29°

29° + ∠4 = 180°

∠4 = 180° - 29°

∠4 = 151°

(b) The equation that can be used to solve for the value of x is found as follows:

∠3 = ∠4 ( vertical angles are equal)

Substituting for ∠3 = 3x - 8 and ∠4 = 151°,

3x - 8 = 151°

(c) The value of x is detremined as follows:

3x - 8 = 151°

3x = 159°

x = 53

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The point (-5,. 7) is located on the terminal arm of ZA in standard position. A) Determine the primary trigonometric ratios for ZA If applicable, make Sure yoU rationalize the denominator: b) Determine the primary trigonometric ratios for _B with the Same sine as ZA; but different signs for the other two primary trigonometric ratios If applicable, make sure you rationalize the denominator: c) Use a calculator to determine the measures of ZA and _B, to the nearest degree:

Answers

(a)We can use these values to calculate the primary trigonometric ratios:

sin(ZA) = o/h ≈ 0.139

cos(ZA) = a/h ≈ -0.998

tan(ZA) = o/a ≈ -0.14

(b) The same sine as ZA but different signs for the other two primary trigonometric ratios can be found by reflecting point (-5, 0.7) across the x-axis.

(c)We use inverse trigonometric functions on primary ratios ZA ≈ 7 degrees, B ≈ -7 degrees.

(a)How to calculate primary trigonometric ratios?

To determine the primary trigonometric ratios for ZA, we first need to find the values of the adjacent, opposite, and hypotenuse sides of the right triangle that contains point (-5, 0.7) as one of its vertices. We can use the Pythagorean theorem to find the hypotenuse:

h = sqrt((-5)² + 0.7²) ≈ 5.02

The adjacent side is negative since the point is to the left of the origin, so:

a = -5

The opposite side is positive since the point is above the x-axis, so:

o = 0.7

Now we can use these values to calculate the primary trigonometric ratios:

sin(ZA) = o/h ≈ 0.139

cos(ZA) = a/h ≈ -0.998

tan(ZA) = o/a ≈ -0.14

(b) How trigonometric ratios can be found by reflecting point?

To find a point B with the same sine as ZA but different signs for the other two primary trigonometric ratios, we can reflect point (-5, 0.7) across the x-axis. This gives us point (-5, -0.7), which has the same sine but opposite sign for the cosine and tangent:

sin(B) = sin(ZA) ≈ 0.139

cos(B) = -cos(ZA) ≈ 0.998

tan(B) = -tan(ZA) ≈ -0.14

(c) How to determine measures of nearest degree?

To find the measures of ZA and B to the nearest degree, we can use inverse trigonometric functions on their primary ratios. Using a calculator, we get:

ZA ≈ 7 degrees

B ≈ -7 degrees (Note: this is equivalent to 353 degrees since angles are periodic).

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need this asap please

Answers

b. <2 ≅ < 3; corresponding angles are equal

d. < 1 + < 2 = 180 degrees; sum of angles on a straight line

How to determine the reasons

To determine the reasons, we need to know about transversals

Transversals are lines that passes through two lines at the given plane in two distinct points.

It intersects two parallel lines

It is important to note the following;

The sum of the angles on a straight line is 180 degreesAngles at right angle is 90 degreesCorresponding angles are equalAdjacent angles are equal

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A circular piece of board contains sections numbered 2, 9, 4, 9, 6, 9, 9, 9. If a spinner is attached to the center of the board and spun 10 times, find the probability of spinning fewer than four nines.

Answers

The probability of spinning fewer than four nines is 1,626,101,367 / 1073741824, which simplifies to approximately 1.514%.

To find the probability of spinning fewer than four nines, we need to first calculate the total number of possible outcomes. The spinner can land on any of the eight sections on the board, and it is spun 10 times. So, the total number of possible outcomes is 8^10, which is 1073741824.

Next, we need to calculate the number of outcomes where fewer than four nines are spun. We can do this by finding the number of outcomes with 0, 1, 2, or 3 nines, and adding them up.

To find the number of outcomes with 0 nines, we need to find the number of ways to choose from the non-nine sections on the board. There are 5 non-nine sections, and we need to choose 10 of them. This is a combination problem, and the number of outcomes is 252.

To find the number of outcomes with 1, 2, or 3 nines, we need to use a similar approach. We can use combinations to find the number of ways to choose the nines and the non-nines, and then multiply them together. The number of outcomes with 1 nine is 9 x 5^9, with 2 nines is 9 x 9 x 5^8, and with 3 nines is 9 x 9 x 9 x 5^7.

Adding up all these outcomes, we get 252 + 9 x 5^9 + 9 x 9 x 5^8 + 9 x 9 x 9 x 5^7 = 1,626,101,367.

So, the probability of spinning fewer than four nines is 1,626,101,367 / 1073741824, which simplifies to approximately 1.514%.

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Will upvote if answer is correct.
Find the surface area of revolution about the x-axis of y = 4x + 2 over the interval 2

Answers

The surface area of revolution about the x-axis of y=4x+2 over the interval 2 is approximately 88.99 square units.

How to find the surface area of revolution

To find the surface area of revolution about the x-axis of y=4x+2 over the interval 2, we first need to express the equation in terms of x.

Rearranging the equation, we get x = (y-2)/4.

Next, we need to determine the limits of integration.

Since we are rotating about the x-axis, the limits of integration are the x-values, which in this case are 0 and 2.

Using the formula for the surface area of revolution, S = 2π∫(y√(1+(dy/dx)^2))dx, we can plug in the values we have found.

dy/dx for y=4x+2 is simply 4, so we get:

S = 2π∫(4x+2)√(1+16)dx from 0 to 2

Simplifying this, we get:

S = 2π∫(4x+2)√17 dx from 0 to 2

Evaluating this integral using calculus, we get:

S = 32π√17/3

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A major corporation is building a 4,325 acre complex of homes, offices, stores, schools, and churches in the rural community of Glen Cove. As a result of this development, the planners have estimated that Glen Clove's population (in thousands) t years from now will be given by the following function.
P(t) = (45t^2 + 125t + 200)/t^2 + 6t + 40 (a) What is the current population (in number of people) of Glen Cove?
(b) What will be the population (in number of people) in the long run?

Answers

(a) To find the current population of Glen Cove, we need to substitute t = 0 in the given function.

P(0) = (45(0)^2 + 125(0) + 200)/(0)^2 + 6(0) + 40
P(0) = 200/40
P(0) = 5

Therefore, the current population of Glen Cove is 5,000 people (since the function is in thousands).

(b) To find the population in the long run, we need to take the limit of the function as t approaches infinity.

lim P(t) as t → ∞ = lim (45t^2 + 125t + 200)/(t^2 + 6t + 40) as t → ∞

Using L'Hopital's rule, we can find the limit of the numerator and denominator separately by taking the derivative of each.

lim P(t) as t → ∞ = lim (90t + 125)/(2t + 6) as t → ∞

Now, we can just plug in infinity for t to get the population in the long run.

lim P(t) as t → ∞ = (90∞ + 125)/(2∞ + 6)
lim P(t) as t → ∞ = ∞/∞ (since the numerator and denominator both go to infinity)

We can use L'Hopital's rule again to find the limit.

lim P(t) as t → ∞ = lim 90/2 as t → ∞
lim P(t) as t → ∞ = 45

Therefore, the population in the long run will be 45,000 people (since the function is in thousands).
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What are the common factors or 12 and 42

Answers

2, 3 are the common prime factors of 12 and 42.

Cassie wants to buy a shirt for $15. 75 and some shoes for $10. 25. If the sales tax is 8. 25%, what is the TOTAL amount Cassie will pay?

Answers

The sales tax is 8.25% of the total cost of the shirt and shoes, so we need to add this to the cost of the items:

Cost of shirt = $15.75

Cost of shoes = $10.25

Total cost before tax = $15.75 + $10.25 = $26.00

Sales tax = 8.25% of $26.00 = 0.0825 x $26.00 = $2.15

Therefore, the TOTAL amount Cassie will pay is:

Total cost after tax = $26.00 + $2.15 = $28.15

So, Cassie will pay $28.15 in total.

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Help me please I don’t know what to do

Answers

Answer:

179.3

Step-by-step explanation:

Rectangle:

L x W

10 x 14 = 140

Semicircle:

(π · r²) / 2

D = 10, r = 10 ÷ 2 = 5

(3.14 · 5²) / 2 = 39.25

Area of figure = 140 + 39.25 = 179.25 = 179.3 (rounding to tenth)

Which function forms an arithmetic sequence?


a. F(x) = 8(2)^2


b. F(x) = 3x^3 + 1


c. F(x) = 5/x -2


d. F(x) = 2x - 4

Answers

A function that forms an arithmetic sequence include the following: D. F(x) = 2x - 4.

How to calculate an arithmetic sequence?

In Mathematics and Geometry, the nth term of an arithmetic sequence can be calculated by using this equation:

aₙ =  a₁ + (n - 1)d

Where:

d represents the common difference.a₁ represents the first term of an arithmetic sequence.n represents the total number of terms.

Next, we would determine the common difference as follows.

Common difference, d = a₂ - a₁

Common difference, d = -6 + 8 = -4 + 6 = -2 + 4

Common difference, d = -2.

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Charity can make 36 cupcake in 45 minutes. If she continues at this rate, how many cupcakes can she make in 8 hours?


a. 280 cupcakes b. 384 cupcakes c. 360 cupcakes d. 300 cupcakes

Answers

The total number of cupcakes charity can make in 8 hours is 384

The total number of cupcakes she can make in 45 minutes is 36

Cupcakes she can make in 1 minute = 36/45

Cupcakes she can make in 1 minute = 0.8

Cupcakes she can make in 8 hours

We will convert hours into minutes

1 hour = 60 min

8 hour = 8 × 60 min

8 hour = 480 min

Cupcakes she can make in 8 hours that is 480 min = 480 × 0.8

Cupcakes she can make in 8 hours = 384

Total number of cupcakes she can make is 384

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In a baseball game, a pop fly is hit, and its height in meters relative to time in seconds is modeled by the function h(t) = -4. 9t^2 + 8t + 1​

Answers

The maximum height reached by the pop fly is approximately 3.27 meters.

How to find the maximum height reached by the pop fly?

The equation h(t) = -4.9t^2 + 8t + 1 models the height in meters of a pop fly hit in a baseball game as a function of time in seconds.

The coefficient of t^2 is negative (-4.9), which means that the graph of this function is a downward-facing parabola. This makes sense, as the ball will start at a certain height and then be pulled down by gravity as it moves through the air.

The coefficient of t is positive (8), which means that the height of the ball is increasing at first. This makes sense, as the ball is gaining altitude after being hit.

The constant term (1) represents the initial height of the ball when it was hit.

To find the maximum height reached by the pop fly, we can find the vertex of the parabola. The x-coordinate of the vertex is given by -b/2a, where a is the coefficient of t^2 and b is the coefficient of t. In this case, a = -4.9 and b = 8, so the x-coordinate of the vertex is:

x = -b/2a = -8/(2*(-4.9)) = 0.8163

To find the corresponding y-coordinate, we can plug this value of t into the equation:

h(0.8163) = -4.9(0.8163)^2 + 8(0.8163) + 1 = 3.27

Therefore, the maximum height reached by the pop fly is approximately 3.27 meters.

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Evaluate the following expressions. Your answer must be an angle -z/2 S 0 S in radians, written as a multiple of r. Note that r is already
provided in the answer so you simply have to fil in the appropriate multiple. E.g. if the answer is /2 you should enter 172. Do not use decimal answers.
Write the answer as a fraction or integer
Sin^-1(sin((-5t-6)

Answers

The given expression is sin⁻¹ (sin((-5t-6)). Since the argument of sin⁻¹ and sin is the same, we can simplify the expression as follows:
sin⁻¹ (sin((-5t-6))) = -5t-6
OR, -5t-6 = (-2π/π)(-5t-6/2) = -2π(2.5t+3)/π = -5π/2(2.5t+3)
Therefore, the answer is -5π/2(2.5t+3).

Given the expression: sin^-1(sin(-5t-6))
To find the angle -z/2, we can use the following properties:
1. sin⁻¹ (sin(x)) = x, if -π/2 ≤ x ≤ π/2 (i.e., x is in the range of the principal branch of the inverse sine function).
2. The sine function has a periodicity of 2π. Therefore, sin(x) = sin(x + 2nπ), where n is an integer.

Given angle: -5t - 6
We need to add 2nπ to this angle to bring it into the range of -π/2 to π/2:
⇒ -5t - 6 + 2nπ, where n is an integer.

Now, we apply the sine and inverse sine functions:
sin⁻¹ (sin(-5t - 6 + 2nπ))

Since sin^-1(sin(x)) = x when x is in the range of the principal branch, our final expression becomes:
-z/2 = -5t - 6 + 2nπ

In this expression, -z/2 represents the angle in radians, written as a multiple of r. To find the multiple, you simply have to solve for -z/2 in terms of r.
Therefore, the answer is: -z/2 = -5t - 6 + 2nπ.

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