Answer:
x = ±11/4
Step-by-step explanation:
Rewrite -16x^2+121=0 as 16x^2 - 121=0 and then as 16x^2 = 121.
Take the square root of both sides. This returns 4x = ±11, and so:
x = ±11/4
Answer:
width of a singles court = 27 feet
Step-by-step explanation:
Width of a doubles tennis court = 36 feet
Width of a singles tennis court = 75% of 36

Answer:
4 hours
Step-by-step explanation:
cross multiply
Answer: -7 + y/3
Step-by-step explanation:
You are going to get the rate of the detects.
6 detects ÷ 114 light bulbs = 1/19 detects per light bulb
If there are 720 light bulbs, then the number of detects will be
720 light bulbs * 1/19 detects per light bulb = 37. 89 ≈ 38 detects