The answer is 5 because 5(x) plus two equals seven and 5(x) subtracted by 2 equals 3
Answer:
y = 18·8^x
Step-by-step explanation:
We assume you want a model that looks like y = ab^x.
To find the values of "a" and "b", you can fill in the given numbers and solve the system of equations:
18 = a·b^0
9216 = a·b^3
The first equation tells you ...
18 = a
Dividing the second equation by the first gives ...
9216/18 = (a·b^3)/(a·b^0) = b^3
512^(1/3) = b = 8
The exponential function is ...
y = 18·8^x
<h3>The area of semicircle is

</h3>
<em><u>Solution:</u></em>
Given that,
We have to find the area of a semi circle with a radius of 3 cm
<em><u>The area of semicircle is given as:</u></em>

Where, r is the radius
From given,
r = 3 cm
<em><u>Substituting the values we get,</u></em>

Thus the area of semicircle is 