Answer:
Step-by-step explanation:
Height doubles at every 30 seconds, so let's call n how many times it happens, and the t the total time:
n = t/30
If the height doubles one time, it is multiplied by 2, if it doubles 2 times, it's multiplied by 2², for n times, it is multiplied by 2ⁿ, so for an initial height equal to 3:
+ 19 on both sides, -19 becomes 0, 1 becomes 20 x=20
The equation for the area of a circle is:
. Insert 9 as your radius (r) into the equation and solve:
\pi 9^2 = 254.469
Answer:
D) all real numbers
Step-by-step explanation:
domain refers to all of the x-values on the graph and this curve can extend indefinitely in both the positive and negative directions
Answer:
C=75.36
A=452.16
Step-by-step explanation:
C=2x3.14xr
×
×
A=3.14×
3.14x12x12=452.16
