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3 years ago

13

a ball shaped like a sphere has a radius of 2.7 centimeters. which measurement is closest to the volume of the ball in cubic cen

timeters

1 answer:

skelet666 [1.2K]3 years ago

3 0

I think that the answer is 30%

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A convex hexagon has exterior angles of 39°, 47°, 42°, 59°, and 64°. What is the measure of an exterior angle at the

meriva

Answer: $109^{\circ}$

Step-by-step explanation:

The exterior angles of a polygon add to 360 degrees, so the sixth angle measures $360-39-47-42-59-64=\boxed{109^{\circ}}$

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2 years ago

A group of 22 students participated in a Race. Their scores are below

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3 years ago

Find sin θ and cos θ if tan θ= 1/4 and sin 0>0.

Serga [27]

Answer:

$\displaystyle \sin(\theta)= \frac{\sqrt{17}}{17}$

$\displaystyle \cos(\theta)= \frac{4 \sqrt {17} }{ 17 }$

Step-by-step explanation:

We want to find sin(θ) and cos(θ) given that tan(θ) = 1/4 and sin(θ) > 0.

First, since tan(θ) and sin(θ) are both positive, cos(θ) must be positive as well.

Recall that tangent is the ratio of the opposite side to the adjacent side.

Therefore, the hypotenuse is:

$h=\sqrt{4^2+1^2}=\sqrt{16+1}=\sqrt{17}$

So, with respect to θ, the opposite side is 1, the adjacent is 4, and the hypotenuse is √17.

Then it follows that:

$\displaystyle \sin(\theta)=\frac{1}{\sqrt{17}} = \frac{\sqrt{17}}{17}$

And that:

$\displaystyle \cos(\theta)= \frac{4}{\sqrt{17}} = \frac{4 \sqrt {17} }{ 17 }$

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3 years ago

Which algebraic expression is a difference with two terms?

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6x-9

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3 years ago