Step-by-step explanation:

Answer:
3x²- 1
Step-by-step explanation:
f(-3) when f(x) = -x²+1
(-x²+1) × -3
3x²- 1
Answer:
11
Step-by-step explanation:
First, find how much a token costs.
4.40 ÷ 8 = .55
Then divide 6.05 by .55 to get 11.
3120 times 4 which is 12,480 which is close to 1200 so c is ur answer
Answer:
27.72litres=27.72×1000 cm^3
(¡)Height of cylinder=27720×7/(22×21^2)=20cm
Step-by-step explanation:
(¡)First convert litres in to cm^3 take it as the volume of the cylindrical container
(¡¡)Then use V=22/7×r^2×h equation and substitute the values to V and r. Then find the value of h
#V=27.72×1000 (V= volume)
# r = 42/2=21 (r = radius)