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3 years ago

What is -45=-6 (-4+3f)

Mathematics

2 answers:

cupoosta [38]3 years ago

8 0

-45=-6(-4+3f)
-45=24+18f
-69=18f
f= -23/6 or -3.83

Anna71 [15]3 years ago

4 0

3.38 hope this helps

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(a) Null Hypothesis, $H_0$ : $\mu$ $\leq$ 41

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We are given that in a random sample of 40 such periods from Spanish colonial times, the sample mean is x¯ = 47.0. Previous studies of sunspot activity during this period indicate that σ = 35.

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