Answer:
Option C (4096π in²)
Step-by-step explanation:
Area of the circle = 256π in²
We know that
, where r = radius of the circle
So,

Cancelling π from both the sides,


The radius of the circle = 16 in.
When the radius is multiplied with 4 , new radius = 16×4 = 64 in.
New Area = 
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
Remember that the general decay equation is:

where

is the amount after a time


is the initial amount

is the the decay percent in decimal form
The first ting we are going to do is find

by dividing our <span>decay rate of 25% by 100%: </span>

.
We also know from our problem that

. Lets replace

and

in our formula:


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

:


Notice that

will depend on the number of ours

. <span />
Answer:
<h3>

</h3>
Step-by-step explanation:

Use the distributive property to multiply each term of the first binomial by each term of the second binomial.
⇒
⇒
Collect like terms
⇒
Hope I helped!
Best regards!!
Answer:
Let the marked price be x
Discount % = 10%
Discount = 10\% \times x = 0.1x10%×x=0.1x
Cost after discount = x-0.1x = 0.9x
10%vat is charged on it
Cost including VAT = 0.9x+0.1(0.9x)=0.99x0.9x+0.1(0.9x)=0.99x
We are given that it's price became rs 1672
So, 0.99x = 1672
x=\frac{1672}{0.99}x=0.991672
x=1688.88
Discount = 0.1x=0.1(1688.88)=168.888
Hence The discount