Answer:
Your friend is correct because you can factor out an x³ form both terms but that will leave you with x³(x-1) which is not the difference of two cubes
Step-by-step explanation:
Answer:
(a) = 40%
(b) = 28%
(c) Expected value = $222,500
Standard deviation = $7,216.88
Step-by-step explanation:
This is a normal distribution with a = 210,000 and b =235,000
(a) The probability that he will get at least $225,000 for the house is:

(b)The probability he will get less than $217,000 is:

(c) The expected value (E) and the standard deviation (S) are:

Answer:
16,20,24,28,32,36,40
Step-by-step explanation:
We know that
the length of Q is 25% more than the length of p
so
length Q=1.25*40--------> 50 cm
the area of Q is 10% less than the area of p
Area Q=50*y
Area P=40*x
so
50*y=0.90*[40*x]---------> 50*y=36*x-------> x/y=50/36---> 25/18
the answer
the ratio x:y is 25:18
That is describing the fact that width of the rectangular screen has a relation to the height of the rectangular screen which equals to