The sum of four consecutive even numbers is 132. what are the numbers?

A circle has an area of 256 square inches. If the radius of

RSB [31]

Answer:

Option C (4096π in²)

Step-by-step explanation:

Area of the circle = 256π in²

We know that $Area=\pi r^{2}$ , where r = radius of the circle

So,

$256\pi = \pi r^{2}$

Cancelling π from both the sides,

$=> r^{2} = 256$

$=> r = \sqrt{256} = 16$

The radius of the circle = 16 in.

When the radius is multiplied with 4 , new radius = 16×4 = 64 in.

New Area = $\pi (64)^{2} =4096\pi \: in^{2}$

6 0

3 years ago

A manual with 325 pages has 3 pages without pictures.

Alexus [3.1K]

The percentage of the pages in the manual without pictures is 0.92%.

The number of the pages in the manual without pictures is 0.01

<h3>What are percentages?</h3>

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred. It is a measure of frequency.

<h3>What is the percentage of the pages without pictures? </h3>

Percentage = (number of pages without pictures / total number of pages) x 100 = 0.92%

To learn more about percentages, please check: brainly.com/question/25764815

8 0

2 years ago

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Dr. Steve is working with a new radioactive substance in his lab. He currently has 64 grams of the substance and knows that it d

4vir4ik [10]

Remember that the general decay equation is:
$y=A(1-r)^{x}$
where
$y$ is the amount after a time $x$
$A$ is the initial amount
$r$ is the the decay percent in decimal form

The first ting we are going to do is find $r$ by dividing our <span>decay rate of 25% by 100%: </span> $r= \frac{25}{100} =0.25$ .
We also know from our problem that $y=64$ . Lets replace $y$ and $r$ in our formula:
$64=A(1-0.25)^{x}$
$64=A(0.75)^{x}$
We know now that our decay rate is 0.75, and since 0.75<1, we can conclude that this situation represents exponential decay.

Now, to find the initial amount, we are going to solve our equation for $A$ :
$64=A(0.75)^{x}$
$A= \frac{64}{0.75 ^{x} }$
Notice that $A$ will depend on the number of ours $x$ . <span />

4 0

3 years ago

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Select the correct answer.

Svetlanka [38]

Answer: