<span> the total distance around the pie is the circumference of the pie, assuming that the pie is a perfect circle then the formula for the circumference of a circle is:
c = piD
where pi is equal to 3.1416
D is the diameter of pie or circle
substitute the given values
C = (3.1416) ( 20 ft
c = 62.832 ft
</span>
Answer:
<u>7x+28</u>
Step-by-step explanation:
7(x+2)+12. First, distribute
7x+14+12. Now combine like terms
<u>7x+28</u>
Answer:
k = 10
Explanation:
The initial polynomial is:

If f(-2) = 0, then when we replace x by -2, the result will be 0. It means that we can write the following equation:

Therefore, we can solve for k as follows:

So, the value of k is 10
Answer:
P = 40
Step-by-step explanation:
if half of P is equal to 20 then two halves would be 40 (20+20)
Answer:
d = -1/3, 0
Step-by-step explanation:
Subtract the constant on the left, take the square root, and solve from there.
(6d +1)^2 + 12 = 13 . . . . given
(6d +1)^2 = 1 . . . . . . . . . .subtract 12
6d +1 = ±√1 . . . . . . . . . . take the square root
6d = -1 ±1 . . . . . . . . . . . .subtract 1
d = (-1 ±1)/6 . . . . . . . . . . divide by 6
d = -1/3, 0
_____
Using a graphing calculator, it is often convenient to write the function so the solutions are at x-intercepts. Here, we can do that by subtracting 13 from both sides:
f(x) = (6x+1)^ +12 -13
We want to solve this for f(x)=0. The solutions are -1/3 and 0, as above.