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3 years ago

How much money did he spend?

Mathematics

1 answer:

Maru [420]3 years ago

3 0

5 times 2 is 10 4 dollars for greens 2 times 3 is 6 10+4+6 is 20 dollars. Noah spent $20

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a story has a contest to guess the mass of 10000 peanuts. If a peanut has a mass of about 0.45 then what would be a reasonable g

mamaluj [8]

1000000 i think...................................................

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3 years ago

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A glass top of an office table has sides of 21 inches. What is its area?

11Alexandr11 [23.1K]

Answer:

441 $inches^{2}$

Step-by-step explanation:

If this is a rectangle, meaning the width and the legnth is different, there is no way in solving this.

However, if it is a square, meaning all the sides are the same,

we can know that every side is 21 inches long.

An area is the width times the length, which is both 21 in this case.

21 times 21 = 441.

441 inches squared.

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3 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;

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

where $\frac{\pi}{2}-1\le x\le \frac{\pi}{2}+1$

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3 years ago

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A charity bingo game costs $2 per round and has a $13 entry fee for an adult. It costs $3 per round and a $10 entry fee for a ch

snow_tiger [21]

Answer:

5 or d

Step-by-step explanation:

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3 years ago

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Help please due today.

BARSIC [14]

Answer:

A) $\frac{7}{tan55^\circ}$

Step-by-step explanation:

$tan\theta=\frac{opposite}{adjacent}\\ \\tan55^\circ=\frac{7}{BC}\\ \\BC*tan55^\circ=7\\\\BC=\frac{7}{tan55^\circ}$

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3 years ago