If we put the parabola in a coordinate system with vertex at the origin and facing the positive x axis. We have the following points lying on the curve:
(4, 8), (4, -8)
For parabola facing right:
y2 = 4ax
Substituting either coordinates to solve for a:
a = 4
Therefore, the microphone should be placed 4 inches from the bottom of the disk.
Answer:
Point A represents savings of week 4 and Point B represents savings of week 2
Step-by-step explanation:
The answer is nine: 17 minus 8 is 9
sea level is 0 and a deck is above water, so 10 and below sea level is where people scuba dive, so the dot at -15
Answer:
I think it would be 20%.
Step-by-step explanation:
$5 was taken off the original price, which is about 1/5 of $24.99. So, since 1/5 as a percent is 20%, I think the answer would be 20%.