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navik [9.2K]
3 years ago
6

Please help, I'm so close to finishing all these.

Mathematics
1 answer:
Vadim26 [7]3 years ago
6 0

Answer:

  d.  43°

Step-by-step explanation:

KM is a bisector of ∠LKN, so ...

  ∠LKN = 2(∠4)

  7q +2 = 2(4q -5)

  12 = q . . . . . . . . . . . add 10-7q, simplify

Now, we can put 12 where q is in the expression for ∠4:

  ∠3 = ∠4 = 4·12 -5 = 43

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Step-by-step explanation:

a) As the alternative hypothesis Ha is μ>575, the rejection region lays in the upper tail. Then, it is an upper-tail test.

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