The formula for exponential growth is y = amount(1+r)^x
Where amount would be the starting value, r would be the percentage and x would be the length of time.
The listed formula that meets that is D. y = 35(1.35)^x
The fourth one, because:
Process of elimination:
The first one is not correct because <u>a decimal doesn't grow when there is an exponent.</u>
The second one is incorrect because <u>the variable is not in the exponents.</u>
The third one is incorrect because <u>even though the number grows, it's in the denominator, so it really just makes the whole value smaller.</u>
The value of is 50.24
<em><u>Explanation</u></em>
The area of a circle with radius is given as:
Now, means the value of when . So, we will just plug into both sides of the above function.
Thus, the value of is 50.24