Answer:
circumference=πD
R=10
D=20
3.14*20
=68.2
Step-by-step explanation:
Area = lw
So 7(4) =28
Area = 28
The answer is C.
Answer:
Jenny is wrong the correct answer is x²+ 4 - 4 x.
Step-by-step explanation:
Given that
(x-2)³∕x-2
(x-2)³∕(x-2) =(x-2) (x-2)²∕(x-2)
(x-2)³∕(x-2) = (x-2)²
As we know that
(a-b)² = a²+b² - 2 ab
So
(x-2)² = x²+ 2² - 2 ˣ 2 ˣ x = x²+ 4 - 4 x
(x-2)² = x²+ 4 - 4 x
It means that
(x-2)³∕(x-2) = (x-2)² = x²+ 4 - 4 x
So Jenny is wrong the correct answer is x²+ 4 - 4 x.
Answer:
B
Step-by-step explanation:
Answer:
27,400 is the current population
7% is the rate of increase
The new size is:
- 38,430 is the population if t is an exponent
- 146,590 is t is NOT an exponent in the formula you typed
Step-by-step explanation:
To find the population in a future year, use the formula:

Substitute the value t=5 to find the population in 5 years.

Or if the equation is supposed to have t as an exponent then look below:

Substitute the value t=5 to find the population in 5 years.

This formula is based off the standard formula
so r, the rate is 1.07=1+0.07 so r is 7%.
is the starting population which is 27,400 here.