2 years ago

Evalute 4+ (-2)-(-3)-6

Mathematics

1 answer:

jarptica [38.1K]2 years ago

8 0

The answer will be -7
And if you want calculate it here’s this one 4-2-3-6

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Pls help me with this one

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2 years ago

9.4 The heights of a random sample of 50 college stu- dents showed a mean of 174.5 centimeters and a stan- dard deviation of 6.9

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Answer: a) (176.76,172.24), b) 0.976.

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So, z = 2.326

(a) Construct a 98% confidence interval for the mean height of all college students.

$x\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=(174.5\pm 2.326\times \dfrac{6.9}{\sqrt{50}})\\\\=(174.5+2.26,174.5-2.26)\\\\=(176.76,172.24)$

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3 years ago

8=−2/5c<br><br> Help me <br><br> I’m single ready to mingle

vitfil [10]

Answer:

-20

Step-by-step explanation:

First, you divide both sides by -2/5, which would get you c = 8 * -5/2 (Because when you divide, you multiply by the reciprocal). 8 * -5/2 is equal to -20. The answer is -20.

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2 years ago