What is the name for the height of a prism,cylinder,pyramid,or cone
1 answer:
You might be interested in
Answer: 0.7258
Step-by-step explanation:
Given : A telemarketer makes a sale on 25% of his calls.
i.e. p=0.25
He makes 300 calls in a night, i.e. n=300
Let x be a random variable that represents the number of calls make in night.
To convert the given binomial distribution to normal distribution we have :-
Now, using , the z-value corresponds to x= 70 :-
The z-value corresponds to x= 90 :-
By using the standard normal distribution table for z, the probability that he will make more than 70 sales but less than 90 sales:-
Hence, the probability that he will make more than 70 sales but less than 90 sales= 0.7258
Answer:
C = 6π in
Step-by-step explanation:
the circumference (C) of a circle is calculated as
C = 2πr ( r is the radius )
the area (A) of a circle is calculated as
A = πr²
given A = 9π , then
πr² = 9π ( divide both sides by π )
r² = 9 ( take square root of both sides )
r = = 3
then
C = 2π × 3 = 6π in