A cylinder of radius r cm and height h cm has a curved surface area A cm². Where –
a) We are asked to find formula for h.


First, overturn the equation


Divide both sides by 2πr






b) Again, we are given –
- Curved surface area, A = 93 cm²
- Radius, r = 2.5 cm
- π = 3.1

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- Henceforth, height of the cylinder is 6 cm.
The answer is the third one
Good for Megan............
Pretty good so far its hard also.
Answer: 0.0336
Step-by-step explanation:
Given : The distribution of cholesterol levels in teenage boys is approximately normal with mean :
Standard deviation : 
The formula for z-score is given by :-

For x=225

The p-value =

The probability that a teenage boy has a cholesterol level greater than 225 =0.0336