Step-by-step explanation:
x+40=60°{ vertically opposite angle r equal}
hope it helps.
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Answer:
Srry if its late the answers are C AND E
261_209=u
-52=u
hope it helps you!!!!!!!!
Answer:
Approximately 63 business students must be randomly selected to estimate the mean monthly earnings of business students at one college
Step-by-step explanation:
confidence interval = 95%
Standard deviation
= 569
= 1 - 0.95 = .05
=
= 1.96
We want 95% confidence that the sample mean is within $140 of the population mean
margin of error ( E ) =140
let n be the sample size
margin of error ( E ) = 
squarring both side


n = 63.45
n =63 approximately
Answer:
x<4
Step-by-step explanation:
Divide each term by -3.3
and simplify.