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3 years ago

Evaluate the expression: 15m - 7n^3 + -5n - m given m = 1/3 and n = -2

Mathematics

1 answer:

Naily [24]3 years ago

7 0

I Think The answer is a I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you

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Which of the following is equivalent to<br> 4x+28

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2 years ago

How do you round 32.697 to the nearest one tents and hundreths.

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3 years ago

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The difference between the length and the width of a rectangle is 5 centimeters. What id the length (the longer side) of the rec

Georgia [21]

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3 years ago

Highschool level trigonometry!!! Need help knowing step by step how to find answer!

Goshia [24]

Answer:

$\theta \approx 82.34^\circ$

Step-by-step explanation:

Please refer to the attached diagram. (Apologies if the shading or resolution is a bit off.)

So, we want to find θ.

Since we formed a right triangle, we can use right triangle ratios.

We know the measure of the adjacent side to θ and the hypotenuse.

Therefore, we will use the cosine ratio:

$\displaystyle \cos(\theta)=\frac{\text{adjacent}}{\text{hypotenuse}}$

The adjacent side is 2 and the hypotenuse is 15. By substitution:

$\displaystyle \cos(\theta)=\frac{2}{15}$

Now, we will take the inverse cosine of both sides. So:

$\displaystyle \theta=\cos^{-1}\Big(\frac{2}{15}\Big)$

Use a calculator. Hence:

$\theta \approx 82.34^\circ$

The angle between the ground and the ladder is about 82.34°.

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3 years ago