3 years ago

88=66+7-5x89 this question makes no scence

Mathematics

1 answer:

andrew-mc [135]3 years ago

8 0

Answer:

x = -3/89

Step-by-step explanation:

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3 years ago

At the first school , there were 5 Sixth graders for every 2 seventh graders. At the second school dance, there were 7 sixth gra

rjkz [21]

Answer:

Step-by-step explanation:

The ratio of the first school is 5/2. The ratio of the second school is 7/8.

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2 years ago

What is the inverse of y=pi/2+sin x

Alekssandra [29.7K]

Answer:

$f^{-1}(x)=\sin ^{-1}(x-\frac{\pi}{2})$

Step-by-step explanation:

The given function is

$y=\frac{\pi}{2}+\sin x$

To find the inverse of this function, we interchange x and y.

$x=\frac{\pi}{2}+\sin y$

we now solve for y.

$x-\frac{\pi}{2}=\sin y$

Take the sine inverse of both sides to obtain;

$\sin ^{-1}(x-\frac{\pi}{2})=y$

Hence the inverse of the given function is;

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3 years ago

Read 2 more answers

Radius of a circle with an area of 907.9 centimeters

Roman55 [17]

$\bf \textit{area of a circle}\\\\
A=\pi r^2~~
\begin{cases}
r=radius\\
-----\\
A=907.9
\end{cases}\implies 907.9=\pi r^2
\\\\\\
\cfrac{907.9}{\pi }=r^2\implies \sqrt{\cfrac{907.9}{\pi }}=r$

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3 years ago