Answer:4x^3-2x^2+20x-10
Step-by-step explanation:
Answer:
Step-by-step explanation:
X no of questions student answers is binomial with n =40 and p =0.5
If approximated to normal, X is Normal with
mean = np = 20 and variance = npq = 10
P(X>N) >0.10
We use std normal distribution table to get z value first then convert to x value

So 
This is with continuity correction.
Hence without continuity correction this equals 7.2-0.5 = 6.7
x>6.7
n = 7
Answer:
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Answer:
20 inches
Step-by-step explanation:
Because the volume of the box is 20.
Correct me if im wrong and please wait for more responses if needed please.