If a number is divisible by 10, then it is divisible by 5.

Which of the following arguments is valid with respect to the conditional statement premise above?

1. A number is divisible by 10.
Therefore, it is divisible by 5.
2. A number is divisible by 5.
Therefore, it is divisible by 10.
3. A number is not divisible by 10.
Therefore, it is not divisible by 5.
4. A number is not divisible by 5.
Therefore, it is not divisible by 10.

A. 1 only
B. 2 and 3
C. All arguments are valid.
D. 1 and 4

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Which function has the domain x> -11? y= x+ 11 +5 y= x-11 +5 y= x+5 - 11 y= x+5 + 11

Jenny borrowed $500 for five years at 4 percent interest, compounded annually. what is the total amount she will have paid when she pays off the loan? total amount = p (1 + i)t a. $608.33 b. $729.99 c. $765.77 reset next