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3 years ago

Find the cosine of angle A to the nearest 100th.

Mathematics

1 answer:

Sauron [17]3 years ago

4 0

Answer:

${ \tt{ \cos(A) = \frac{ \sqrt{700} }{40} }} \\ { \tt{ \cos(A) = 0.66 }}$

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Please help me out please please !!!!!

Sauron [17]

The surface area of a sphere is given by

$S = 4\pi r^2$

We deduce

$r = \sqrt{\dfrac{S}{4\pi}}$

So, in your case, the radius is

$r = \sqrt{\dfrac{100\pi}{4\pi}}=\sqrt{25}=5$

The volume of a sphere is given by

$V=\dfrac{4}{3}\pi r^3$

So, we have

$V = \dfrac{4}{3} \pi 5^3 = \dfrac{500}{3}\pi$

5 0

3 years ago

What property is used in method 1?

Anvisha [2.4K]

Answer:

Division Property of Equality

Step-by-step explanation:

Divide both sides by 5

So answer : Division Property of Equality

6 0

3 years ago

Read 2 more answers

Bruce flipped a penny 5 times. It landed on heads 2 times and tails 3 times. If he flips the coin a 6th time, what statement is

babunello [35]

Answer:

Step-by-step explanation:

I would say B because they're only 2 options head and tails.

✩brainliest appreciated ✩

3 0

3 years ago

A number decreased by fifteen is less than two.

Aliun [14]

Let us assume number of n.

The number is decreased by 15.

Decreasing by 15 means, we need to subtract 15 from that number.

So, it would be come n-15.

Now, it is said that the number would become less than 2.

So, we need to setup an inequality:

n-15 is less than 2.

Adding 15 on both sides, we get

n-15+15 < 2+15

n < 17.

<h3>So, we could say the number would be less than 17.</h3>

3 0

3 years ago

Name the intersection of the planes ACE and CDF.

Lynna [10]

Based in your question where as the figure shows the intersection of the planes ACE and CDF and the ask is to name that intersections.Base on my calculation and through step by step procedure and with the guidance of the theories and by the use of formulas, I came up with an answer of the intersection of the two planes is the line CE<span>
</span>

7 0

3 years ago