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taurus [48]
3 years ago
5

HELP me look at pics

Mathematics
2 answers:
wariber [46]3 years ago
6 0
First lets simplify the equation by removing the parenthesis 

m + n + 3 + m + n + 4

Gather the like terms

(m + m) + (n + n) + (3 + 4)


Now simplify it add 3 + 4 so it can be 7


Answer: C) 2m + 2n + 7 or the third option.
Setler [38]3 years ago
3 0
M+n+3+m+n+4
=3m+2n+7

answer
C. 3m+2n+7
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Is 0.5814 repeating a rational or irrational number??
goldenfox [79]

Answer:

irrational

Step-by-step explanation:

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3 years ago
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___<br>H is the midpoint of IJ and IH = 0.75 find HJ<br>​
insens350 [35]
The answer is 1.5 bc 0.75 times 2 since it’s the midpoint
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2 years ago
Please help me with this question.​
Sav [38]

Answer:

-2; -7

Step-by-step explanation:

Hello, the graph is split in two lines, right?

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7 0
3 years ago
A high school student took two college entrance exams, scoring 1070 on the SAT and 25 on the ACT. Suppose that SAT scores have a
antoniya [11.8K]

Answer:

Due to the higher z-score, he did better on the SAT.

Step-by-step explanation:

When the distribution is normal, we use 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.

Determine which test the student did better on.

He did better on whichever test he had the higher z-score.

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Scored 1070, so X = 1070

SAT scores have a mean of 950 and a standard deviation of 155. This means that \mu = 950, \sigma = 155.

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

Z = \frac{1070 - 950}{155}

Z = 0.77

ACT:

Scored 25, so X = 25

ACT scores have a mean of 22 and a standard deviation of 4. This means that \mu = 22, \sigma = 4

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

Z = \frac{25 - 22}{4}

Z = 0.75

Due to the higher z-score, he did better on the SAT.

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3 years ago
Which ordered pair makes the equation true? 4x – 9y = –5 (–5, –2) (–1, 1) (10, 5) (20, 4)
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(10,5) would make the equation correct
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