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Mekhanik [1.2K]
3 years ago
14

I am not very good at math, and my daughter finished her math assignment and wasn't sure if she did everything correctly. Can so

meone make sure this is correct?

Mathematics
1 answer:
liubo4ka [24]3 years ago
5 0

Answer:

I think its correct I don't know tho

Step-by-step explanation:

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Simplify 6 - (-2) - 3(-5).<br> -11<br> -7<br> 19<br> 23
Sergeeva-Olga [200]
6 - (-2) - 3(-5) = (6 + 2) + 15 = 8 + 15 = 23

Your answer is D. the last one :)
4 0
2 years ago
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I'LL GIVE BRAINLIST<br><br> Select all the rates that are unit rates.
Alex Ar [27]

Answer:

B and D

Step-by-step explanation:

5 0
2 years ago
In 2014, the CDC estimated that the mean height for adult women in the U.S. was 64 inches with a standard deviation of 4 inches.
Vladimir79 [104]

Answer:

A. 16%

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 64, \sigma = 4

Which of the following gives the probability that a randomly selected woman has a height of greater than 68 inches?

This is 1 subtracted by the pvalue of Z when X = 68. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{68 - 64}{4}

Z = 1

Z = 1 has a pvalue of 0.84.

1 - 0.84 = 0.16

So the correct answer is:

A. 16%

6 0
3 years ago
Solve for x. <br> A) 11<br> B) 9<br> C) 6<br> D) 7
DIA [1.3K]

Answer:

Step-by-step explanation:

Angle  BCA is inscribed in that circle.  The rule is that the inscribed angle is half the measure of the arc it intercepts.  The arc it intercepts is arc AB which measures 96 degrees.  That means that

4x+4=\frac{1}{2}(96) and

4x + 4 = 48 and

4x = 44 so

x = 11

Choice A is the one you want.

8 0
3 years ago
The value of 4^9 is how many times as great as the value of 4^6?? help
Svetllana [295]

Answer:

4

Step-by-step explanation:

the answer is a,answer is 4

8 0
2 years ago
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