2 years ago

It is estimated that 75% of the students at Ryder Middle School are involved in athletics or

Mathematics

1 answer:

Fittoniya [83]2 years ago

6 0

B is the right answer

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PLEASE HELP (100 POINTS)

Artyom0805 [142]

$\\ \rm\Rrightarrow f(x)=-5cos\dfrac{x}{2}+5$

Compare to standard equation of SHM

$\\ \rm\Rrightarrow y=Acos(\omega x+\phi)$

Here

Amplitude=A=-5

$\\ \rm\Rrightarrow \omega x=\dfrac{x}{2}$

$\\ \rm\Rrightarrow \omega=1/2$

Well the above one are for extra knowledge .

Solution:-

$\\ \rm\Rrightarrow 10=-5cos\dfrac{x}{2}+5$

$\\ \rm\Rrightarrow 10-5=-5cos\dfrac{x}{2}$

$\\ \rm\Rrightarrow 5=-5cos\dfrac{x}{2}$

$\\ \rm\Rrightarrow cos\dfrac{x}{2}=-1$

$\\ \rm\Rrightarrow \dfrac{x}{2}=cos^{-1}(-1)$

$\\ \rm\Rrightarrow \dfrac{x}{2}=\pi$

$\\ \rm\Rrightarrow x=2\pi$

So.

$\\ \rm\Rrightarrow x=2\pi+2\pi n$

3 0

2 years ago

Read 2 more answers

Paula got $10.50 from her grandparents on her birthday. She earned $4.45 by babysitting. How much money is this in all? c HAPPY

Aloiza [94]

We have the following:

To calculate the total money, you have to add the amounts that Paula won, as follows

$\begin{gathered} T=10.5+4.45 \\ T=14.95 \end{gathered}$

Which means that in total they are $ 14.95

8 0

7 months ago

40 points!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

notka56 [123]

Answer:

Step-by-step explanation:

6 0

3 years ago

The cube root of 27/64

motikmotik

0.046875

THIS IS THE ANSWER!!!!!!!!!

5 0

3 years ago

Read 2 more answers

What is mean in math

aalyn [17]

The mean is the average where u add up all the numbers and the. divide by the median

5 0

3 years ago