Answer:
More than 180. It needs more info to have an actual answer.
X²＋7x－30
＝x²＋10x－3x－30
＝x(x＋10)－3(x＋10)
＝(x＋10)(x－3)
Hope my answer helped u :)
What's the answer to what?
Answer:
Given:
Null hypothesis: the average salary for new college graduates with a job is $50,556.
Alternative hypothesis: the graduates from a university earn more than that average.
Using the z-test:
=> Calculate the value of test statistic:
t = (mean of sample - mean of null hypothesis)/(std/sqrt(number of sample)
= (53200 - 50556)/(10200/sqrt(100))
= 2.592 > 1.645
=> Reject the null hypothesis, their graduates earn more than average
Hope this helps!
:)
An expression that could represent 15 team members selling c coupon books would be 15c . This expression represents c amount of coupon books (which is the amount of coupon books sold per person) multiplied by the number of people that sold c amount of coupon books, which was 15.
