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3 years ago

Which of the following describes the following graph?

Mathematics

1 answer:

andre [41]3 years ago

5 0

A. neither a function nor a relation

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5. Determine the average rate of change of f(x)=6 cos(2x) – 4 on the interval [pi/4,pi]

Vinil7 [7]

Answer:

$- \frac{8}{\pi}$

Step-by-step explanation:

Use slope formula.

Rise over run.

y over x.

$\frac{ {y}^{2} - y {}^{1} }{ {x}^{2} - x {}^{1} }$

Over changes in x value would be - 3/4 pi.

Plug in seepage intervals for x to find y.

$6 \cos(2(\pi) - 4$

In the regular function,

$\cos(\pi) = 1$

Since our period is 2, it would stay the same since 1x2=2

Since our amplitude is 6, our y value now is 6.

Since our vertical shift is -4, our y value is 2.

$6 \cos(2(\pi)) - 4 = 2$

${x}^{2} = \pi \: \: \: \: {y}^{2} = 2$

Let do the other point,

$\cos( \frac{\pi}{4} ) = \frac{ \sqrt{2} }{2}$

Our period is 2 so

$\frac{ {\pi} }{4} \times \frac{2}{1} = \frac{\pi}{2}$

$\cos( \frac{\pi}{2} ) = 0$

Multiply this by 6.

It stays 0 then subtract 4 we get

$6 \cos(2( \frac{\pi}{4} )) - 4 = - 4$

Use the earlier formula, slope

$\frac{2 + 4}{ - \frac{3\pi}{4} } = - \frac{8}{\pi}$

7 0

3 years ago

Mike bungee jump from a building with eight stories each story was 15 4/5 feet in height how tall is the building

n200080 [17]

The building is 126.4 feet tall

5 0

3 years ago

What are the coordinates of point X? (1,3) (3, -1) (3,1) (-1, -3)

vfiekz [6]

I believe it’s (-3,1) because you count 3 going left starting at the point 0. And since the X-int on the left side is negative that’s why it’s -3. Then you just go up 1 time .

6 0

3 years ago

Read 2 more answers

How do you get 50.8%of975

Andru [333]

Answer:

495.3/950 and then mutiply by 100

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

What is the value of x?

fenix001 [56]

Answer:

B, x=5

Step-by-step explanation:

Both triangles are similar with a ratio of 22.5/9

so using that an equation can be created like this, $\frac{22.9}{9}$ = $\frac{23.5}{x+4.4}$

If simplified, 22.9(x + 4.44) = 23.5(9)

22.5x + 99 = 211.5

22.5x = 112.5

x = 5

8 0

3 years ago