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photoshop1234 [79]
2 years ago
10

Plz plz help there are 2 answers

Mathematics
1 answer:
Lelechka [254]2 years ago
4 0

Answer:

A)~ 2(x+2)=2x+14~(NO)

B)~14(x+3)=14x+42~(YES)

C)~14(x+5)=14x+70~(NO)

D)~7(2x+6)=14x+42~(YES)

E)~2(2x+20)=14x+40~(NO)

So,~ B ~and ~ D ~ are~ your ~ answers

<h3><u>---------------------------</u></h3><h3><u>hope it helps...</u></h3><h3><u>have a great day!!</u></h3>

You might be interested in
The time for a professor to grade an exam is normally distributed with a mean of 16.3 minutes and a standard deviation of 4.2 mi
dem82 [27]

Answer:

62.17% probability that a randomly selected exam will require more than 15 minutes to grade

Step-by-step explanation:

Problems of normally distributed samples are 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 = 16.3, \sigma = 4.2

What is the probability that a randomly selected exam will require more than 15 minutes to grade

This is 1 subtracted by the pvalue of Z when X = 15. So

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

Z = \frac{15 - 16.3}{4.2}

Z = -0.31

Z = -0.31 has a pvalue of 0.3783.

1 - 0.3783 = 0.6217

62.17% probability that a randomly selected exam will require more than 15 minutes to grade

8 0
3 years ago
Kinda need some help
aksik [14]

Answer:

1) x=10

2) x=6

3) x=13

Step-by-step explanation:

1) 15x-17+4x+7=180

19x-10=180

19x=190

x=10

2) 13x+5=16x-13

5+13=16x-13x

18=3x

x=6

3) 9x+7=11x-19

7+19=11x-9x

26=2x

x=13

6 0
3 years ago
Do you guys know the answers to these?
frutty [35]

Answer:

The first one is 0 slope.

The second one undefined slope.

Step-by-step explanation:

I hope it helps you!!!:-)

7 0
2 years ago
<img src="https://tex.z-dn.net/?f=x%20%5Ctimes%20%20%5Cfrac%7B2%7D%7B3%7D%20%20%3D%201%20%5Ctimes%20%5Cfrac%7B1%7D%7B3%7D%20" id
Ulleksa [173]
The answer : x= one half
6 0
2 years ago
Tyler poured 15 cups of water into 2 equal-sized bottles and filled each bottle. How much water was in each bottle?
LiRa [457]

Answer:

7.5

Step-by-step explanation:

If there are 2 bottles and 15 cups then...  

15 ÷ 2 = 7.5  

He poured 7.5 cups of water in each bottle.

diagram?? maybe you could do this...

5 0
2 years ago
Read 2 more answers
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