Find the value of x, y, and z in the rhombus below.
(-x-8)
107⁰
(3y-1)
(-42-7)

Find The Value Of X, Y, And Z In The Rhombus Below.(-x-8)107(3y-1)(-42-7)

Answers

Answer 1

Step-by-step explanation:

It is not clear from the given information which angles and sides are being referred to as "107⁰", "-x-8", "-42-7", and "3y-1". However, we can use some properties of rhombuses to solve for x, y, and z.

Opposite angles in a rhombus are equal. Therefore, if one angle is 107⁰, then the opposite angle is also 107⁰.

The diagonals of a rhombus are perpendicular bisectors of each other. This means that they intersect at a right angle and divide each other into two equal parts.

The diagonals of a rhombus bisect each other's angles. This means that the angles formed by each diagonal with the sides of the rhombus are equal.

Using these properties, we can set up some equations to solve for x, y, and z:

Let's assume that "-x-8" and "-42-7" are the lengths of the diagonals of the rhombus, and that "3y-1" is the length of one of the sides.

Since the diagonals bisect each other's angles, we know that the angles formed by each diagonal with the side of the rhombus are equal. Let's call each of these angles "z":

-z + 107⁰ + z = 180⁰ (sum of angles in a triangle)

107⁰ = 180⁰ - 2z

2z = 73⁰

z = 36.5⁰

Now let's use the fact that the diagonals are perpendicular bisectors of each other:

(-x-8)/2 = (-42-7)/2

-x-8 = -49

-x = -41

x = 41

Finally, let's use the fact that the sides of a rhombus are equal:

-x-8 = 3y-1

41-8 = 3y-1

33 = 3y

y = 11

Therefore, the values of x, y, and z in the rhombus are:

x = 41

y = 11

z = 36.5⁰


Related Questions

The diagram shows the curve y = -x²-x+ 20.
(i) The curve cuts the x-axis at two points A and B, and the y-axis at the point C. Find the coordinates of A, B and C.
(ii) The point D(3, h) lies on the curve. Find the value of h.

Answers

Plotting the equation shows that the graph crosses the

y axis at A (-5, 0) and B (4, 0) and x axis at C (0, 20)

The value of h is 8

How to find the value of h

To find the value of y when x is 3, we need to substitute 3 for x in the given equation -x^2 - x + 20:

y = -x^2 - x + 20 (substitute x = 3)

y = -(3)^2 - 3 + 20

y = -9 - 3 + 20

y = 8

Therefore, when x is 3, y is 8.

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Divide a Quadratic by a Linear

Divide the following polynomials. Express your answer in the following way:
Dividend = (Divisor)(Quotient) + Remainder

Answers

Required form of solutions are (x² + 6x + 9) = (x+3)×(x-3) + 0, (x² - 9x + 18) = (x-6)×(x-3) + (-72), (x² + 4x - 7) = (-x-1)×(x+5) + (-2).

What is division?

Division is a basic arithmetic operation in mathematics that involves dividing one number by another. It is denoted by the symbol "/", or by the horizontal fraction bar. The number being divided is called the dividend, while the number it is being divided by is called the divisor. The result of the division is called the quotient. For example, if we divide 10 by 2, the dividend is 10, the divisor is 2, and the quotient is 5. The formula for division is:

dividend / divisor = quotient

In some cases, division may result in a remainder. For example, if we divide 10 by 3, the quotient is 3 with a remainder of 1. This can be expressed as 10 / 3 = 3 remainder 1, or as a mixed number, 3 1/3. In other cases, the division may result in a decimal or a fraction.

Here,

1) To divide (x² + 6x + 9) by (x + 3), we can use polynomial long division as follows:

x + 3 | x² + 6x + 9

- x² - 3x

-------

3x + 9

3x + 9

-----

0

Therefore, the quotient is x + 3 , dividend is x² + 6x + 9, divisor is (x+3) and the remainder is 0.

So, (x² + 6x + 9) = (x+3)×(x-3) + 0

2) To divide (x² - 9x + 18) by (x - 6), we can use polynomial long division as follows:

x - 6 | x² - 9x + 18

- x² + 6x

-------

-15x + 18

-15x + 90

--------

-72

Therefore, the quotient is x - 3, dividend is (x² - 9x + 18), divisor is x-6 and the remainder is -72.

So, (x² - 9x + 18) = (x-6)×(x-3) + (-72)

3) To divide (x² + 4x - 7) by (x + 5), we can use polynomial long division as follows:

x + 5 | x² + 4x - 7

- x² - 5x

-------

-x - 7

-x - 5

------

-2

Therefore, the quotient is (-x + -1), dividend is x² + 4x - 7, divisor is x+5 and the remainder is -2.

So, (x² + 4x - 7) = (-x-1)×(x+5) + (-2)

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How do u write a fraction for 6 and 10

Answers

The fraction for 6 and 10 is 6/10, which can be simplified to 3/5 by dividing both the numerator and denominator by their greatest common factor, which in this case is 2.

So 6/10 is equivalent to 3/5.

Peter makes a weekly payment of $56.74 towards the mortgage. He need to make payments for 85 weeks to pay off the loan. Estimate the total amount Peter will pay back.

Round each weekly payment to the nearest whole dollar before calculating.

Answers

Answer: $4845

Step-by-step explanation:

First, round Peter's weekly payment to the nearest whole dollar:

$56.74 ≈ $57

Next, multiply the rounded weekly payment by the number of weeks he needs to make payments:

$57 * 85 weeks = $4845

So, Peter will pay back an estimated total of $4845.

The cost of joining a gym includes an initial fee of $25 and then $2 per visit. Which linear equation represents the cost of visiting the gym x times?

Answers

The linear equation that represents the cost of visiting the gym x times is: y = 2x + 25

What is Algebraic expression ?

An algebraic expression is a mathematical phrase that can contain variables, constants, and operators (such as addition, subtraction, multiplication, and division) that are used to represent quantities and their relationships.

The cost of joining a gym includes an initial fee of $25 and then $2 per visit. Let y be the total cost of visiting the gym x times.

To find the equation that represents this relationship, we need to determine the slope and the y-intercept.

The slope represents the rate of change of the cost with respect to the number of visits, which is the cost per visit. Since the cost per visit is $2, the slope is 2.

The y-intercept represents the initial cost of joining the gym, which is $25.

Therefore, the linear equation that represents the cost of visiting the gym x times is: y = 2x + 25

In this equation, x represents the number of visits to the gym, and y represents the total cost of those visits.

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Find the maximum value of = √ subject to the cost constraint K + 4L = 16.
Estimate the change in the optimal value of Q if the cost constraint is changes to K +
4L = 17

Answers

The maximum value of Q was found to be 26.49 subject to the cost constraint K+4L=16.2, and the optimal value of Q decreased by approximately 9.39 when the cost constraint was changed to K+4L=17.

To find the maximum value of Q subject to the cost constraint, we can use the method of Lagrange multipliers. We first define the Lagrangian function:

L(K, L, λ) = 10√(KL) + λ(K + 4L - 16.2)

where λ is the Lagrange multiplier.

∂L/∂K = 5√(L/K) + λ = 0

∂L/∂L = 5√(K/L) + 4λ = 0

∂L/∂λ = K + 4L - 16.2 = 0

K = 3.24, L = 2.16, λ = -2.5

Therefore, the maximum value of Q is:

Q = 10√(3.24*2.16) = 10√7.0224 ≈ 26.49

If the cost constraint is changed to K+4L=17, we can repeat the same process with the new constraint to get:

K = 4.25, L = 0.6875, λ = -2.5

Therefore, the new maximum value of Q is:

Q = 10√(4.25*0.6875) = 10√2.9297 ≈ 17.10

The change in the optimal value of Q is then:

17.10 - 26.49 ≈ -9.39

The optimal value of Q decreases by approximately 9.39 when the cost constraint is changed from K+4L=16.2 to K+4L=17. This indicates that the optimal value of Q is sensitive to changes in the cost constraint.

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Find the maximum value of Q = 10√/KL subject to the cost constraint K+4L=16.

Estimate the change in the optimal value of Q if the cost constraint is changed to K+4L =17. Interpret the meaning of Lagrange multiplier.

Find
1-The mid point
2-The slop
3-The length
4 - The equation

Answers

1) the midpoint of the line segment is (2, 2.5). 2) the slope of the line is -3.25.  3)the length of the line segment is approximately 13.60.    4) the equation of the line is y = -3.25x + 9.

what is slope ?

In mathematics, the slope of a line is a measure of its steepness, defined as the ratio of the vertical change (rise) between two points on the line to the horizontal change (run) between the same two points. It is often denoted by the letter "m".

In the given question,

To find the midpoint of the line segment that connects the points (4,-4) and (0,9), we use the midpoint formula:

Midpoint = ((x₁ + x₂)/2, (y1 + y₂)/2)

Midpoint = ((4 + 0)/2, (-4 + 9)/2)

Midpoint = (2, 2.5)

So the midpoint of the line segment is (2, 2.5).

To find the slope of the line that passes through the two given points, we use the slope formula:

Slope = (y₂ - Ly₁)/(x₂ - x₁)

Slope = (9 - (-4))/(0 - 4)

Slope = 13/-4

Slope = -3.25

So the slope of the line is -3.25.

To find the length of the line segment that connects the two given points, we use the distance formula:

Length = √((x₂ - x₁)² + (y₂ - y1)²)

Length = √((0 - 4)² + (9 - (-4))²)

Length = √(16 + 169)

Length = √(185)

Length ≈ 13.60

So the length of the line segment is approximately 13.60.

Now, we can use the point-slope formula to find the equation of the line that passes through the point (4,-4) with slope -3.25:

y - y1 = m(x - x₁)

y - (-4) = -3.25(x - 4)

y + 4 = -3.25x + 13

y = -3.25x + 9

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Find the length of line AB.

Answers

Answer:

AB = 9

Step-by-step explanation:

Since triangle ACE and BCD are congruent, they have the same angles, you can figure out the fraction to get from ACE to BCD, then reverse it. So since CE is 12 + 4 = 16 and CD is 4, we can see that ACE is 4 times greater than BCD because 16/4 = 4.

So to get AB, find AC by multiplying BC by 4, which gives 12, then subtract AC by BC to get AB: 12 - 3 = 9

HELP!!!
What is m∠EFG?

Answers

The measurement of angle EFG is 42.

The central angle is an angle with two arms and a vertex in the middle of a circle. The two arms of the circle's two radii intersect the circle's arc at two separate locations. A circle can be divided into sectors by using the central angle. An excellent illustration of a central angle is a pizza slice. A pie chart is made up of several sectors and is useful for representing various amounts.

A straightforward illustration of a sector with a center angle of 180o is a protractor. The angle created by a circle's arc at its center is another way to describe the term "central angle."

We have a circle with center H and the central angle is 84 degrees

The central angle of the circle is double of circumference angle.

Then the measurement of angle EFG is 42.

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i need help pleaseeee

A car was valued at $44,000 in the year 1992. The value depreciated to $15,000 by the year 2006.
A) What was the annual rate of change between 1992 and 2006?
r=---------------Round the rate of decrease to 4 decimal places.
B) What is the correct answer to part A written in percentage form?
r=---------------%
C) Assume that the car value continues to drop by the same percentage. What will the value be in the year 2009 ?
value = $ -----------------Round to the nearest 50 dollars.

Answers

(A) There was a change from 1995 and 2003 at a rate of -0.1463

(B) A change took place between 1995 and 2003 at a rate of -14.63% per year.

(C) In 2007, the car would be worth $5,844.24.

What is depreciation?

The ability to reclaim the purchase price or other basis of a specific item over the period of its usage is provided through depreciation, an annual income tax deduction.

It is an allowance for the regular deterioration, wear, tear, or obsolescence of the asset.

The worth of the car decreases over time.

Depreciation is the term for this action.

The value of an asset decreases over time as a result of depreciation, or ordinary wear and tear.

To determine the annual rate of change, use the following formula:

g = (FV/PV)¹⁾ⁿ - 1

Now, compute the following value using the formula:

(11000/3900)¹⁾⁸ - 1

-0.1463 = -14.63%

To calculate a car's value in 7 years, apply the formula below:

FV = P (1 + g)ⁿ

$39,000 x (1 - 0.1463)¹²

$39,000 x 0.8537¹² = $5,844.24

Therefore, (A) There was a change between 1995 and 2003 at a rate of -0.1463

(B) A change took place between 1995 and 2003 at a rate of -14.63% per year.

(C) In 2007, the car would be worth $5,844.24.

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Correct question:

A car was valued at $39,000 in the year 1995. The value depreciated to $11,000 by the year 2003.

A)What was the annual rate of change between 1995 and 2003? (Round to 4 decimal places)

B)What is the correct answer to part A written in percentage form?

C)Assume that the car value continues to drop by the same percentage. What will the value be in the year 2007?

I’m doing some homework and I completely forgot how to do perimeter since 5th. Just answer the first question so I can understand it againn :’)

Answers

The perimeter of a rectangle is calculated by adding up the length of all four sides. Therefore, the perimeter of a rectangle with a length of 12 3/4 meters and a width of 6.4 meters is:

Perimeter = 2(length + width)
Perimeter = 2(12 3/4 + 6.4)
Perimeter = 2(25/4 + 6 2/5)
Perimeter = 2(31 9/20)
Perimeter = 62 9/20 meters

Therefore, the perimeter of the rectangle in simplest fraction form is 62 9/20 meters.

Answer:

You can start by changing 12 3/4 into a decimal, which would be 12.75.

The formula for perimeter of a rectangle is (l + w) x 2, so you could write it like this:

(12.75 + 6.4) x 2

Then solve the question in the parenthesis...

19.15 x 2 = 38.30

Now, the question says to write the perimeter into simplest fraction form.

38.30 = 38 3/10.

So, there you have it!

38 3/10 meters

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1. You want to take out a $210,000 mortgage (home loan). The yearly interest rate
on the loan is 6%, and the loan is for 30 years. How much will your monthly
payment be? Answer= 1265.05
2. For the loan in problem #1, how much will you pay over the life of the loan? How
much interest will be paid over the life of the loan

Answers

HERE IS THE STEP BY STEP EXPLANATION

MUA

Solve the system by substitution

if you get a decimal round to the nearest hundred

Answers

We can use the quadratic formula to solve for x, and the system of equations to solve for y. We have two possible solutions for x: x = 4 + [tex]\sqrt{28}[/tex] ≈ 8.29, and y = 7 - x ≈ -0.29.

What is substitution method?

A system of linear equations can be solved using the substitution approach. In this procedure, one variable in one of the equations is solved in terms of the other, and that expression is then replaced into the other equation. This yields an equation with a single variable that can be solved. Once one variable has been identified, it may be swapped into one of the original equations to determine the second variable.

We can use the first equation to solve for one of the variables in terms of the other, and then substitute that expression into the second equation to get an equation in just one variable. Let's solve the first equation for y:

x + y = 7

y = 7 - x

Now we can substitute this expression for y into the second equation:

[tex]y = x^2 - 9x - 5[/tex]

[tex]7 - x = x^2 - 9x - 5[/tex]

Rearranging terms, we get:

[tex]x^2 - 8x - 12 = 0[/tex]

Now we can use the quadratic formula to solve for x:

x = (-b ± [tex]\sqrt{(b^2 - 4ac)}[/tex]) / 2a

where a = 1, b = -8, and c = -12. Plugging these values in, we get:

x = (-(-8) ± [tex]\sqrt{(-8)^2 - 4(1)(-12))}[/tex]) / 2(1)

Simplifying:

x = (8 ± [tex]\sqrt{(64 + 48)}[/tex]) / 2

x = (8 ± [tex]\sqrt{(112)}[/tex]) / 2

x = 4 ± [tex]\sqrt{(28)}[/tex]

So we have two possible solutions for x:

x = 4 + [tex]\sqrt{(28)}[/tex] ≈ 8.29

x = 4 - [tex]\sqrt{(28) }[/tex]≈ -0.29

Now we can use either equation to solve for y. Let's use y = 7 - x:

When x = 4 + [tex]\sqrt{(28)}[/tex], we have:

y = 7 - (4 + [tex]\sqrt{(28)}[/tex]) = 3 - [tex]\sqrt{(28)}[/tex]

When x = 4 - [tex]\sqrt{(28)}[/tex], we have:

y = 7 - (4 - [tex]\sqrt{(28)}[/tex]) = 3 + [tex]\sqrt{(28)}[/tex]

So the two solutions to the system of equations are:

x = 4 + [tex]\sqrt{(28)}[/tex], y = 3 - [tex]\sqrt{(28)}[/tex]

x = 4 - [tex]\sqrt{(28)}[/tex], y = 3 + [tex]\sqrt{(28)}[/tex]

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what is the surface area of 12 ft 16 ft 14 ft 20 ft

Answers

The rectangular prism, which has sides measuring 12 feet, 14 feet, and 20 feet, has a surface area of 1376feet².

What does surface area mean?

The space a two-dimensional flat surface occupies is the area. Its unit of measurement is the square. A three-dimensional object's surface area is the area occupied by its exterior surface. It is also measured in units².

We must first determine the surface area of each face of a rectangular prism with sides measuring 12 feet, 14 feet, and 20 feet before adding them all up.

Let's first determine the area of the top and bottom faces, which are both rectangles measuring 12 feet by 20 feet each:

480feet² is equal to 2 x (12 ft x 20 ft) for the top and bottom faces.

The front and back faces, which are both rectangles with measurements of 12 feet by 14 feet, can now be calculated as follows:

2 x (12 ft) x (12 ft) x (12 ft) = 336feet² is the area of the front and back faces.

Let's finally determine the area of the rectangles that make up the left and right faces, both of which measure 14 feet by 20 feet:

2 x (14 ft x 20 ft) = 560feet² is the area of the left and right faces.

We add up the areas of all six faces to determine the total surface area:

Overall surface area equals the sum of the areas on the top, bottom, front, and back, as well as the left and right faces.

Overall surface area equals 480feet² + 336feet² + 560feet² =1376 feet².

As a result, the rectangular prism with measurements of 12 feet, 14 feet, and 20 feet has a surface area of 1376 feet².

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The complete question is:

what is the surface area of 12 ft 16 ft 14 ft 20 ft

Find the value of x

Answers

Answer:

32°

Step-by-step explanation:

2x + 1 + x - 7 = 90

3x + 1 - 7 = 90

3x - 6 = 90

3x = 96

x = 32

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Answer:

[tex]\mathrm{x=32^o}[/tex]

Step-by-step explanation:

Value of x:-

[tex]\mathrm{(2x+1)+(x-7)=90^o}[/tex]

[tex]\mathrm{2x+1+x-7=90}[/tex]

[tex]\mathrm{(2x+x)+(1-7)=90}[/tex]

** [tex]\mathrm{2x+x=\bf 3x}[/tex]

** [tex]\mathrm{1-7=\bf -6}[/tex]

[tex]\mathrm{3x-6=90}[/tex]

[tex]\mathrm{3x-6+6=90+6}[/tex]

[tex]\mathrm{3x=96}[/tex]

[tex]\mathrm{\cfrac{3x}{3}=\cfrac{96}{3}}[/tex]

[tex]\mathrm{x=32}[/tex]

Therefore, the value of x is 32°.

____________________

Hope this helps!

Blake collects stamps. He collected a total of 275 stamps. If 88% of the stamps he collected were foreign, how many other stamps did he collect?

Answers

If 88% of the stamps were foreign, then the remaining 12% must be domestic stamps.

To find out how many domestic stamps Blake collected, we can start by calculating what 12% of 275 is:

12% of 275 = 0.12 x 275 = 33

The remaining stamps are foreign stamps.

Therefore, Blake collected 33 domestic stamps.

Find the distance between the following pairs of points.

(4,-3),(-7,-3)

Answers

Answer:

To find the distance between two points, we use the distance formula: distance = square root of [(x2 - x1)^2 + (y2 - y1)^2] In this case, our points are (4, -3) and (-7, -3), so we can plug in the values: distance = square root of [(-7 - 4)^2 + (-3 - (-3))^2] distance = square root of [(-11)^2 + (0)^2] distance = square root of (121) distance = 11 Therefore, the distance between the points (4, -3) and (-7, -3) is 11 units.

Simplify: 5(y+2) +5(y-1)​

Answers

Answer:

Step-by-step explanation:

To simplify 5(y+2) +5(y-1), we distribute the 5 to each term inside the parentheses, and then combine like terms as follows:

5(y+2) +5(y-1)

= 5y + 10 + 5y - 5 // Distribute the 5

= 10y + 5 // Combine like terms

Therefore, 5(y+2) +5(y-1) simplifies to 10y + 5.

The Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 established the Consumer Financial Protection Bureau (CFPB). The purpose of the CFPB is to ensure that consumer finance markets work effectively. It provides a forum for consumers to submit their complaints about the services received from financial providers. It also educates consumers about financial matters to help them make sound financial decisions.

Use this consumer credit card market report, published by the CFPB in 2017, to answer the following questions.



Refer to section 1.3.2, Credit scores, on page 22 of the report.

For which two purposes do credit card issuers use credit scores?

Select all the correct answers.

Oto determine the consumer's age and gender

Oto set pricing for rewards programs

O to determine the consumer's eligibility for credit

O to set pricing for late fees

to set pricing for credit lines

to determine the number of credit cards to be issued by a lending company

Answers

Credit card issuers use credit scores to determine the consumer's eligibility for credit and to set pricing for credit lines. (Options C and E).

What is Credit Card?

A credit card is a type of payment card that allows the cardholder to borrow money from a financial institution or issuer to purchase goods or services. The cardholder can use the card to make purchases up to a certain credit limit set by the issuer, and they are required to pay back the borrowed amount, usually with interest, within a specified period of time.

Credit cards typically offer a range of benefits, such as rewards programs, cash back, and fraud protection, and they are widely used for online and in-person transactions. However, if not used responsibly, credit cards can lead to debt and financial problems.

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PLS HELP Triangle ABC
maps to triangle XYZ
by a rotation of 90∘
counterclockwise about the origin followed by a reflection across the line y=x.
In triangle ABC,
m∠A=45∘,
m∠B=55∘,
and m∠C=80∘.
What is the measure of ∠Y?
Enter your answer as the correct value, like this: 42

Answers

Based on the given information, the measure of angle Y is 30 degrees.

What is transformation?

A transformation is a process or operation that changes the position, shape, or orientation of a geometric figure or an object in space.

There are several types of transformations, including:

Rotation: A transformation that rotates a figure around a fixed point, called the center of rotation, by a certain angle.

Reflection: A transformation that produces a mirror image of a figure across a line, called the line of reflection.

To start, let's first find the vertices of triangle XYZ after the given transformations:

Rotation of 90 degrees counterclockwise about the origin:

The rotation of point (x, y) by 90 degrees counterclockwise about the origin gives us the point (-y, x). So we can apply this transformation to each vertex of triangle ABC to get the vertices of triangle XYZ after rotation:

A = (cos(45), sin(45)) = (√2/2, √2/2) → A' = (-√2/2, √2/2)

B = (cos(55), sin(55)) → B' = (-sin(55), cos(55))

C = (cos(80), sin(80)) → C' = (-sin(80), cos(80))

Reflection across the line y=x:

To reflect a point (x, y) across the line y=x, we simply swap the x and y coordinates to get (y, x). So we can apply this transformation to each vertex of triangle XYZ to get the final vertices:

A'' = (√2/2, -√2/2)

B'' = (cos(55), -sin(55))

C'' = (cos(80), -sin(80))

Now we can use the law of cosines to find the measure of angle Y:

cos(Y) = [B''C''² + A''C''² - A''B''²] / [2 * B''C'' * A''C'']

= [cos(55)² + cos(80)² - (√2/2)²] / [2 * cos(55) * cos(80)]

≈ 0.866

So we have cos(Y) = 0.866, which means Y ≈ 30 degrees. Therefore, the measure of angle Y is approximately 30 degrees.

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How can we multiple 4/9and6/7

Answers

By dividing the numerator and denominator by their 3 greatest common factor, the resultant fraction is 8/21 .

what is fraction ?

To express a portion of a whole or the division of a quantity, use a fraction. It consists of a horizontal or slant line separating the two integers that make up the numerator and denominator. The total quantity of components in the whole is represented by the denominator, while the numerator is the number of equal parts that are being taken into account. As an illustration, the numerator and denominator of the fraction 3/4 are 3 and 4, respectively. Parts of a set, chunks of a pie, and ratios between quantities can all be represented using fractions. Using particular guidelines and algorithms, they can be multiplied, divided, added, or subtracted. To make calculations and comparisons simpler, fractions can be changed to decimals or percentages.

given

We combine the numerators and denominators together to multiply two fractions. So:

(4/9) x (6/7) = (4 x 6) / (9 x 7) = 24/63

By dividing the numerator and denominator by their 3 greatest common factor, the resultant fraction can be made simpler:

24/63 = (3 x 8) / (3 x 21) = 8/21

Because of this, 4/9 x 6/7 Equals 8/21.

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So, for part b. I had got the answer 77 but it came back incorrect. I need help for this math problem.

Answers

This test is left-tailed and the test statistic is -1.53

What type of test is given?

Since the alternative hypothesis is that less than 10% of treated subjects experienced headaches, and this is a lower bound, the test is left-tailed.

To find the test statistic, we first need to calculate the expected number of subjects who would experience headaches if the null hypothesis were true (i.e., if the true proportion were 10%). This is found by multiplying the total number of treated subjects by the hypothesized proportion:

Expected number of subjects with headaches = 0.10 * 288 = 28.8

We then use the formula for the z-score of a sample proportion:

z = (p - P) / √(P(1 - P) / n)

where p is the sample proportion (21/288), P is the hypothesized proportion (0.10), and n is the sample size (288).

Plugging in the values, we get:

z = (0.073 - 0.10) / √(0.10 * 0.90 / 288) = -1.53

Therefore, the test statistic is z = -1.53.

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I would really appreciate any help I can get. Thankyou!

Answers

The length of OI is 6.5 units. The solution has been obtained by using the Pythagoras theorem.

What is Pythagoras theorem?

Pythagoras' Theorem states that the square of a right-angled triangle's hypotenuse side is equal to the sum of the squares of its other two sides.

We are given a circle with two tangents drawn from a external point and the radius perpendicular to the tangent measures 3.9 units.

We know that the tangents when drawn from a external point are equal in length.

So,

IK = IJ = 5.2 units

Now, in triangle OJI, using the Pythagoras theorem, we get

⇒ [tex]OI^{2}[/tex] = [tex]OJ^{2}[/tex] + [tex]IJ^{2}[/tex]

⇒ [tex]OI^{2}[/tex] = [tex]3.9^{2}[/tex] + [tex]5.2^{2}[/tex]

⇒ [tex]OI^{2}[/tex] = 15.21 + 27.04

⇒ [tex]OI^{2}[/tex] = 42.25

⇒ OI = 6.5 units

Hence, the length of OI is 6.5 units.

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# 21 i
Find the area of the regular polygon. Round your answer to the nearest hundredth.
7.6
5.2

Answers

The area of the regular polygon and rounded  to the nearest hundredth is 200 sq. units.

How to find the area of any polygon?

Area of Regular Polygon Formula = [tex]\frac{l^2n}{4tan\left(\frac{180}{n}\right)}[/tex] Square units

Length of side of the regular polygon is 5.2 and have n= 9 sides

Let's say, Area is A for the polygon,

[tex]A = \frac{(5.2)^2 \times 9}{4 tan\left(\frac{180}{9}\right)}\\\\A= 167.16\ sq.\ units\\A= 200\ sq.\ units\ (round-off\ to\ nearest\ hundred)[/tex]

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area is approximately 158.72 square centimeters

how to find the area of a regular octagon?

To find the area of a regular octagon with a given side length and apothem, we can use the formula:

Area = (1/2) × Perimeter × Apothem

where Perimeter is the total length of all the sides of the octagon.

We are given that the side length of the octagon is 5.2 cm and the apothem is 7.6 cm.

To find the perimeter of the octagon, we can use the fact that the octagon is a regular polygon and has eight equal sides. Thus:

Perimeter = 8 × side length = 8 × 5.2 cm = 41.6 cm

Now we can substitute the values we have into the formula to get:

Area = (1/2) × Perimeter × Apothem

Area = (1/2) × 41.6 cm × 7.6 cm

Area = 158.72 cm²

Therefore, the area of the regular octagon with a side length of 5.2 cm and an apothem of 7.6 cm is approximately 158.72 square centimeters.

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1. Name a minor arc.
2. Name a major arc.
3. Name a point of tangency.
4. Name a radius.

answer the 1,2,3,4 question in image

Answers

Answer: What is minor arc and major arc?

Image result for 1. Name a minor arc. 2. Name a major arc. 3. Name a point of tangency. 4. Name a radius.

Every pair of endpoints defines two arcs. An arc whose measure is less than 180 degrees is called a minor arc. An arc whose measure is greater than 180 degrees is called a major arc. An arc whose measure equals 180 degrees is called a semicircle, since it divides the circle in two.

Step-by-step explanation:

Your points from B to D would be your minor arc.

Major arc would be E,D,B

The point of tangency would be B

The radius would be ED and EB

Which is the largest angle?
A4
OC
B
5
Cannot tell
OA
с
7
6
B

Answers

Answer is Angle C is the largest angle

Explanation

The Angle of a Triangle Opposite The Longest Side is the Largest Angle

7 is the longest length and angle C is it’s opposite

A group of 10 students spent 813 minutes studying for an upcoming test. What prediction can you make about the time it will take 120 students to study for the test?

It will take them 1,626 minutes.
It will take them 6,775 minutes.
It will take them 7,963 minutes.
It will take them 9,756 minutes.

Answers

Answer:

It will take them 9756 minutes

Step-by-step explanation:

10 students take 813

How do you get from 10 to 120?

times 10 by 12

Now times 813 by 12

9756

Part ii and iii solution please

Answers

The estimated yield of wheat when the average amount of fertilizer is applied is 68.65 units.

To estimate the yield of wheat when the average amount of fertilizer is applied, we first need to calculate the average amount of fertilizer from the given data.

Use a linear regression tool to fit a line to the data points.

The tool will give you the equation of the line, which will be of the form:

[tex]y = mx + b[/tex]

where y is the yield of wheat, x is the amount of fertilizer, m is the slope of the line, and b is the y-intercept.

Using this method, we can estimate the yield of wheat when no fertilizer is applied.

To estimate the yield of wheat when the average amount of fertilizer is applied, we first need to calculate the average amount of fertilizer from the given data.

The average amount of fertilizer can be calculated as:

[tex](50 + 80 + 100 + 122 + 150 + 180 + 200) / 7 = 120[/tex]

Therefore, the average amount of fertilizer applied is 120.

[tex]y = m(120) + b[/tex]

To get the values of m and b, we can perform a linear regression analysis on the given data points.

[tex]m = 0.3903[/tex]

b = 21.754

Substituting these values into the equation above, we get:

[tex]y = 0.3903(120) + 21.754 = 68.65[/tex]

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Mr. Woods is buying ice cream for two of his students, Moses and Gaby. They each get one scoop of ice cream. Gaby wants ice cream in a cone, but she is a slow eater. Moses wants a cup because he is a bit messy and doesn’t want to drip any ice cream. Each scoop is a perfect sphere and has a radius of 5 cm. The height of the cup and cone are both 12 cm. and the radius of each container is the same as each scoop of ice cream.

Answers

the volume of one scoop of ice cream is 523.6 cc. The cup can hold a volume of 942.5 cc, which is more than one scoop of ice cream. Therefore, Moses's cup can hold one scoop of ice cream without overflowing or spilling.

let's break down the problem step by step.

First, we need to calculate the volume of one scoop of ice cream. Since each scoop is a perfect sphere with a radius of 5 cm, we can use the formula for the volume of a sphere, which is:

V = (4/3)πr³

where V is the volume and r are the radius. Substituting r = 5 cm, we get:

V = (4/3)π(5³) = 523.6 cubic centimeters (cc)

So, the volume of one scoop of ice cream is 523.6 cc.

Next, we need to calculate the volume of the cup and the cone. Since both have the same radius as the scoop of ice cream, we can use the formula for the volume of a cylinder and a cone, respectively, with height 12 cm and radius 5 cm:

For the cup:

[tex]V_{cup}[/tex]= πr²h = π(5²) (12) = 942.5 cc

For the cone:

[tex]V_{cone}[/tex] = (1/3)πr²h = (1/3)π(5²)(12) = 314.2 cc

So, the volume of the cup is 942.5 cc, and the volume of the cone is 314.2 cc.

Now, we can determine how much ice cream each container can hold. Since each person gets one scoop of ice cream, we need to compare the volume of one scoop of ice cream to the volume of each container.

For Gaby's cone:

We know that the volume of one scoop of ice cream is 523.6 cc. The cone can hold a volume of 314.2 cc, which is less than one scoop of ice cream. Therefore, Gaby's cone can only hold one scoop of ice cream.

For Moses's cup:

Again, the volume of one scoop of ice cream is 523.6 cc. The cup can hold a volume of 942.5 cc, which is more than one scoop of ice cream. Therefore, Moses's cup can hold one scoop of ice cream without overflowing or spilling.

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The complete question: What is the volume of ice cream in each scoop and what is the total volume of ice cream that Mr. Woods needs to buy for Moses and Gaby? Also, what is the total surface area of the ice cream exposed to the air in each container (cone and cup)?

At Layla's favorite restaurant, the price of supreme nachos is $13.50.After Layla adds a tip, the price of the item is $16.20. What is the percent of the tip?

Answers

Answer:After layla adds a tip, the price of the item is $16.20. The percent of the tip is 10 %

Step-by-step explanation:

What is a tip?

A tip is a gift or a sum of money placed or given for a service performed or anticipated, by extension, a form of gratuity. Even if the service is poor, it's recommended you leave at least 10 percent.

How to calculate a tip?

There are four ways of calculating a tip:

Method 1: Move over the decimal in the bill total and then double that number.

Method 2: Multiply the tax of the bill by two.

Method 3: Double the pretax bill and then move the decimal over one space.

Method 4: Determine 10% of the bill and add half

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