Answer:
x = 42.67
Step-by-step explanation:
Answer:
$26.15 total
Step-by-step explanation:
23.77(1.1)=26.147
Answer:
123 is not a multiple of 9, while all others are
99 is a multiple of 11, while all others are not
Answer:
a, b and c.
Step-by-step explanation:
The statistical inference may be defined as the process of using the data analysis to infer the properties of an underlying distribution for a probability.
In the context, for testing the population proportion p, the following conditions are used to verify the inference procedures so as to make the statistical inferences :
-- data that are collected by a random assignment or by a random sample.
-- sample size should be less than 10% of population size.
-- The 
and the 
for the sample size 
as well as for the hypothesis proportion, 
Answer:
B
Step-by-step explanation:
If C is the correct answer and if the final result is multiplied out, where does the minus sign in a^4 - b^4 come from? All pluses don't make a minus. A is incorrect.
If D is correct, then a^2 - b^2 should be further factored producing a different kind of answer, like (a + b)^2(c-d)^2 which is not the same as a^4 - b^4. So D is not correct.
The first step in factoring a^4 - b^4 is (a^2 + b^2)(a^2 - b^2) A doesn't lead you anywhere. A is incorrect. The answer must be B.
a^4 - b^4 = (a^2 - b^2)(a^2 + b^2) The first term factors.
a4 - b^4 = (a + b)(a - b) (a^2 +b^2)
