3 years ago

Will mark brainliest

Mathematics

1 answer:

11111nata11111 [884]3 years ago

5 0

I would think that the surface area doubles as everything else doubles.

Hope I helped

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Write a cosine function that has an amplitude of 2, a midline of 5 and a period of \frac{3\pi}{4} 4 3π .

kakasveta [241]

Given:

Amplitude = 2

Midline = 5

Period of $\dfrac{3\pi}{4}$ .

To find:

The cosine function.

Solution:

The general cosine function is:

$f(x)=A\cos(Bx+C)+D$ ...(i)

Where, |A| is amplitude, $\dfrac{2\pi}{B}$ is period, $-\dfrac{C}{B}$ is phase shift and D is the mid line.

Period of function is $\dfrac{3\pi}{4}$ . So,

$\dfrac{3\pi}{4}=\dfrac{2\pi}{B}$

$B=2\pi\times \dfrac{4}{3\pi}$

$B=\dfrac{8}{3}$

Substituting $A=2,\ B=\dfrac{8}{3},\ C=0,\ D=5$ in (i), we get

$f(x)=2\cos(\dfrac{8}{3}x+0)+5$

$f(x)=2\cos(\dfrac{8}{3}x)+5$

Therefore, the required cosine function is $f(x)=2\cos(\dfrac{8}{3}x)+5$ .

6 0

3 years ago

Write two equations for a horizontal line and a vertical line.

wlad13 [49]

Two equations for a horizontal line could be y = 1 & y = 5
Two equations for a vertical line could be x = 2 & x = 6

Horizontal lines are created when y is always equal to one number, while vertical lines are created when x is always equal to one number.

Hope this helps!

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3 years ago

Mai's bank account is oversrawn by $60,which means her balance is -$60. She gets $85 for her birthday and deposits it into her a

Phoenix [80]

Answer:

Step-by-step explanation:

-60 plus 85 equals 25 so she has 25 dollars in the bank now.

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3 years ago

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Solve 16x + 9 = 9y – 2x for y.<br> y =

liberstina [14]