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3 years ago

14

during the last snow storm, the snow accumulated at 4/5 inch/hour. if the snow continues t this rate for 10 hours, how much snow

will accumulate

2 answers:

Nookie1986 [14]3 years ago

8 0

After 10 hours the snow would be 8 inches deep because 4/5x10 = 8

andreev551 [17]3 years ago

6 0

You'd multiply 4/5 by 10 which gives you 8. So your answer is 8 inches.

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Step-by-step explanation:

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Brrunno [24]

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3 years ago

I need help again I’m pretty stuck

ANEK [815]

Answer:

1: 45

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Step-by-step explanation:

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3 years ago

Simplify the expression cos x cot x+ sin x please select the best answer from the choices provided a.0, b.csc x, c. Tan x, d sec

expeople1 [14]

Answer:

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$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

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$\frac{1-sin^2 x}{sin x} +sin x$

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Step-by-step explanation:

For this case we have the following expression given:

$cos x cot x + sin x$

We know from math properties that the definition for cot is $cot x = \frac{cos x}{sin x}$

If we use this definition we got:

$cos x \frac{cos x}{sin x} + sin x$

$\frac{cos^2 x}{sin x} +sin x$

Now we can use the following identity:

$sin^2 x + cos^2 x =1$

Solving for $cos^2 x$ we got $cos^2 x =1 -sin^2 x$ and replacing this we got:

$\frac{1-sin^2 x}{sin x} +sin x$

$\frac{1}{sin x} -\frac{sin^2 x}{sin x} +sin x$

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And then the best option for this case would be:

b.csc x

4 0

3 years ago