Answer:
C, y=2x(x-4)
Step-by-step explanation:
All the other equations can be graphed as lines, but C is the only one that is a parabola (a curve).
Answer:
The height is 15 m.
Step-by-step explanation:
V = (pi)r^2h
375(pi) = (pi)(5^2)h
Divide both sides by 25pi.
15 = h
Answer: The height is 15 m.
Answer:
The probability 
Step-by-step explanation:
From the question we are told that
The population proportion is p = 0.90
The sample size is n = 30
Generally mean of the sampling distribution is 
Generally the standard deviation is mathematically represented as

=> 
=> 
Generally the he probability that the proportion surviving for at least five years will exceed 80%, rounded to 5 decimal places is mathematically represented as

Generally 
So

From the z-table 
So

That is not right. Is that all your work on the bottom?