PLEASE HELP I AM DESPERATE I WILL GIVE THANKS, 5 STARS, AND THE BRAINLIEST!!!

Answer:

Answer A

Step-by-step explanation:

The coefficients of the x terms are 1, 4 and 7.  Thus, the discriminant, b^2 - 4ac, is 16 - 4(1)(7) = -12 = -3·4.  Because the discriminant is negative we know that there are two unequal, complex roots.

                               -4 ± i√3√4         -2 ±i√3

The roots are x = --------------------- =

                                       2              

This is Answer A.

The graph of tan(x/4) < 1/5 over the interval 0<= x<=2pi radians is attached. An approximate solution to the trigonometric inequality tan(x/4)<1/5 over the interval 0<= x<=2pi radians is 0 <= x < 0.7896.

y = 1/5 is a horizontal straight line parallel to x-axis.

Plot of tan(x/4)<1/5 over the interval 0<= x<=2pi radians is attached. The shaded region is the solution.

tan(x/4) < 1/5

Taking tan inverse on both sides

tan⁻¹(tan(x/4)) < tan⁻¹(1/5)

x/ 4 <  tan⁻¹(1/5)

Multiplying by 4 on both sides

x < 4tan⁻¹(1/5)

x < 0.7896

Applying the limits of intervals

0 <= x <= 2pi ≈ 6.28

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Answer:

To find out by how much the price was reduced, we can use the following equation:

price reduction = original price * reduction percentage

We know that the price reduction is £264 and the reduction percentage is 17.5%, so we can plug those values into the equation to get:

price reduction = £264 / 17.5%

To solve this equation, we need to express the percentage as a decimal. We can do this by dividing the percentage by 100:

price reduction = £264 / (17.5 / 100)

This simplifies to:

price reduction = £264 / 0.175

Solving this equation gives us a price reduction of £1512.

So, the original price was reduced by £1512.

Step-by-step explanation:

Answer:

The slope is 0.

Step-by-step explanation:

There is no rise over run and the slope is only undefined when the line is going upwards.

Each friend of Arya will receive 0.625 cupcakes.

To divide 5 cupcakes equally among 8 friends, we can use simple division. We would divide the total number of cupcakes (5) by the total number of friends (8) to find the number of cupcakes each friend would receive. In this case, 5 divided by 8 is equal to 0.625. This means that each friend will receive 0.625 cupcakes. However, since cupcakes are not divisible it is not possible to divide 5 cupcakes equally among 8 friends. In this case, either Arya will have to make more cupcakes or they will have to decide on a different way to divide the cupcakes.

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Answer:

1/8

Step-by-step explanation:

Ryan has 1/2 pound of chocolate

He divided into 4 portions

Therefore the amount each of them will get can be calculated as follows

1/2 ÷ 4

= 1/2 × 1/4

= 1/8

Hence each portion Is 1/8

Answer:

Use Pythagorean:

Not a Pythagorean triple

It is a Pythagorean triple (9, 40, 41)

Not a Pythagorean triple

Answer:

132 [tex]cm^{2}[/tex]

Step-by-step explanation:

Triangle formula is 1/2 bh (4x3/2) is 6 (4 triangles)=24

Base is 6x8=48

sides are 6x5=30 then multiply by 2 of the sides =60

add all together

Answer:

Alternate exterior

Step-by-step explanation:

1 and 11 are on different sides which makes them alternate and they are both on the outside

:)

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Answer:

-225

Step-by-step explanation:

-30*7=-210

-210-15=-225

please give brainliest

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ) , then

F (- 4, - 6 ) → F' (4, - 6 )

G (- 4, - 3 ) → G' (4, - 3 )

H (- 3, - 4 ) → H' (3, - 4 )

Answer:

Step-by-step explanation:

hope this helps

Answer:

x = 9.2

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

One pound of beef is $3.2

Step-by-step explanation:

14.40 / 4.5

= 3.2

CHECK:

3.2 * 4.5

=14.40

Answer:

Step-by-step explanation:

The unit rate for this beef is:

$14.40

---------- = $3.20/lb

4.5 lb

Answer:

Because f(x)=y, begin by changing f(x) to the y-value, getting y=2x-4. Because we are determining the inverse of the equation, this means that the x and y-value should be switched, getting x=2y-4. Now that we're trying to isolate y, move 4 to the other side to get x+4=2y. Divide by 2 on both sides to get y=[tex]\frac{1}{2}[/tex]x+2. Now, we substitute y for f(x), but this time we put [tex]f^{-1}[/tex](x), because it's the inverse of f(x).

Here are the steps in order:

y=2x-4

x=2y-4

x+4=2y

x/2+4/2=2y/2

y=1/2x+2

f^-1(x)=1/2x+2

Answer:

v= -(-v)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

1. 13

2. 28561

Step-by-step explanation:

Answer:

The other guy said both but i know that the square root of 169 is 13!

Step-by-step explanation:

Brainlist?

Hope this helps!

Answer:

6 × 1f = 6f

6 × 5 = 30

= 6f + 30

So the answer is A - 6f + 30

The place value of the following underlined digit are as follows:

In Mathematics, a place value can be defined as a numerical value (number) which denotes a digit based on its position in a given number and it includes the following:

In this scenario, the underlined digit 8 in "0.983" has a place value of hundredths because it is located 2 places after the decimal point. Additionally, the underlined digit 4 in "145.58" has a place value of tens because it is located 2 places before the decimal point.

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Complete Question:

Identify the place value of the underlined digit.

1) 0.983

2) 8.47

3) 145.58

4) 0.005

5) 31.0643

Given:

The set of ordered pairs in the options.

To find:

The set of ordered pairs which does not represent a function.

Solution:

A set of ordered pairs represents a function if their exist a unique y-value for each x-value.

In option 3, the given set of ordered pair is:

{(−3,−3),(4,1),(−3,3),(2,2)}

Here, we have to y-values -3 and 3 for x=-3. It means the y-value is not unique for x=-3. So, this set of ordered pairs is not a function.

In option 1, 2 and 4, all the x-coordinates are different. It means their exist a unique y-value for each x-value. So, the set of ordered pairs in options 1, 2 and 4 represent a function.

Therefore, the correct opting is 3.

Answer:

[tex]5.18 *10^{9}[/tex]

Step-by-step explanation:

3.7 * 1.4 = 5.18

[tex]10^{6} *10^{3} = 10^{9}[/tex]

Answer:

3.7 x 10^3 and 1.4 x 10^6 = 1403700 = 1.4037 × 10^6

Step-by-step explanation:

= 1.4037 × 10^6

(scientific notation)

= 1.4037e6

(scientific e notation)

= 1.4037 × 10^6

(engineering notation)

(million; prefix mega- (M))

= 1403700

(real number

Answer:

Refraction

Step-by-step explanation:

Since the line bends (and this can apply to light too), the line refracts, or changes the angle of direction.

Answer:

absorption

diffraction

refraction

reflection

Step-by-step explanation:

The total amount of payment for calls is Rs 648

From the problem, the following information is deduced to help solve the problem

the minimum charge of 175 calls is Rs 180 and Rs 1.50 per calls for additional calls

The total call reading

= present reading - former reading

= 7577 - 5577

= 2000

the number of 175 calls in 2000

= 2000 / 175

= 11 3/7 approximately 12

Total cost of calls

175 calls = Rs 180 + Rs 1.50 * 12

= 180 + 1.50 * 12

= Rs 180

Adding other charges to Rs 180

= 180 * 1.1 + 180 * 1.3 + 180 * 1.2

= Rs 648

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Therefore , the solution to the given problem of trigonometry comes out to be  angle of elevation : 62.3°.

The area of mathematics called trigonometry examines the correlation between triangle length l. The field first came into existence in the Classical world, presumably in the third-century BC, as a result of the integration of geometry with astronomy studies. Precise approaches mathematics deals with certain trigonometric equations and possible uses of them in calculations. There are six common trigonometric functions in trigonometry. They are known by their respective names and abbreviations sine, trigonometry, tangent, secant, etc. cosecant (csc). The studies of triangle aspects, particularly those right triangles, is known as trigonometry. However, studying geometry entails learning about all polygons' characteristics.

Here,

given  :

An aircraft is being followed by two radar stations, which are 4.3 miles apart.

Station A is 9.6 miles away from the plane in a straight line.

Thus,

To find the angle of elevation  from station A to plane :

Using Trigonometric ratios:

=> Sin A  = 8.5 / 9.6

=> Sin A = 85/96

=> A =  [tex]Sin^{-1}[/tex](85/96 )

=> A = 62.302840124651483 °

=> A = 62.3°

Therefore , the solution to the given problem of trigonometry comes out to be  angle of elevation : 62.3°.

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Parallel lines are those lines that lie in the same plane and never intersect each other. They are equidistant from each other at every point and have the same slope.

Two lines are stated to be parallel when they do not meet at any point in a plane. This means that lines which do not have a common intersection point and never cross paths with each other are parallel to each other. The symbol used for representing parallel lines is ‘||’.

Two parallel lines are represented as:

AB║CD

That is line AB is parallel to CD.

The perpendicular length between the two parallel lines is always constant.

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