Answer:
Top Question:
56.52
Bottom Question:
235.5
<h3>
step-by-step explanation:</h3>
Top Question:
π*r^2 = 113.04
113.04*0.5 = 56.52.
Bottom Question:
π*r^2 = 314.
314*0.75 = 235.5.
We use the formula π x r^2.
C=2πr, if r=7 then:
C=2π7
C=14π in
C≈43.98 in (to nearest hundredth of an inch)
Apparently the people who gave you the answer choices don't know how to round correctly :)
I'd go with D) 43.96 inches as it is somewhat close to the correct answer LOL
Solve simultaneously
let x be marys age and y be peters age.
x-2=1/2(5y) -equation 1
x=2/3y -equation 2
Let me know if you want me to solve it for you but these are the two equations
Answer:
f(20) = 168
Step-by-step explanation:
To find the 20th term, substitute n = 20 into f(n) , that is
f(20) = 9(20) - 12 = 180 - 12 = 168