Match the reasons with the statements given. Given:
ABR
=
| |
Prove:
1 =2

Helpful Hint: Start by identifying the given first.

1.Segment RA=segment RB, RS||AB
Substitution
2.∠A = ∠B
If lines ||, corresponding ∠'s =
3.∠A = ∠2
Base ∠'s of isosceles triangle =
4.∠B = ∠1
If lines ||, alternate interior ∠'s =
5.∠1 = ∠2
Given

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

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.