Answer:
4y²-1/4 is the required answer
Step-by-step explanation:

Answer:
a) 4410
b) 4189.5
Step-by-step explanation:
To find the volume of the pool, multiply the length, width, and depth:
21*35*6=4410ft^3
95% capacity would be equal to 0.95*4410=4189.5ft^3
20t +15t+90+25t-75=60t+15
60t+15/3=20t+5 as the average
☺☺☺☺
CscA = 1/sinA
CosACscA = cosA × 1/sinA = cosA/SinA = cotA