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3 years ago

8 − a = 17. What does a equal?

Mathematics

2 answers:

vichka [17]3 years ago

7 0

Answer:

a = -9

Step-by-step explanation:

8 - a = 17

8 -17 = a

-9 = a

butalik [34]3 years ago

3 0

Answer:

-9

Step-by-step explanation:

subtract 8 from both sides. divide -1 by both sides it gives you -9. When put into the equation the two negatives make a positive and you add 8 + 9 which gives u 17.

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3 years ago

Construct the confidence interval for the population mean mu. c = 0.90, x = 16.9, s = 9.0, and n = 45. A 90% confidence inte

Georgia [21]

Answer:

The 90% confidence interval for population mean is $14.7 < \mu < 19.1$

Step-by-step explanation:

From the question we are told that

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The sample size is $n = 45$

The standard deviation

Now given that the confidence level is 0.90 the level of significance is mathematically evaluated as

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