Answer:
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
multiplying by 2 gives C=4*pi*r
make r = 3 for example, and you get C = 6pi
when you plug r into the new formula, C= 12pi, which is double
Answer:
-52
Step-by-step explanation:
its the same as subtracting 74-22 (52), but the least number is first(neagtive number) so 22-74= -53
The temperature after 7 hours is -2° F
<em><u>Explanation</u></em>
At 3 p.m the temperature was 12° F
Then , the temperature began to drop 2° F every hour.
So, the total temperature dropped in 7 hours will be:
° F
Now, for finding the temperature after 7 hours, we need to <u>subtract the "temperature dropped" from the "initial temperature"</u>.
Thus, the temperature after 7 hours
° F
Answer:
x ≥-10
Step-by-step explanation:
–2.5x ≤ 25
Divide each side by -2.5, remembering to flip the inequality
–2.5x/-2.5 ≥ 25 /-2.5
x ≥-10