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Vikki [24]
3 years ago
11

T is the midpoint of AE. AT=4x-3 and TE= 2x+7, find the length of AE

Mathematics
1 answer:
iris [78.8K]3 years ago
7 0

If T is the midpoint, then that means its exactly 1/2 of the way between 2 points

this means we can set the 2 given values equal

4x - 3 = 2x + 7

first move like terms to the same side

2x = 10

x = 5

now that we know the length of x, we plug it back in to get the length

4x - 3 + 2x + 7 = 6x + 4

6(5) + 4 = 34

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Likurg_2 [28]

you have to take 51 plus 11 and add it up. then your answer should be 62 degrees different.

6 0
2 years ago
5lb 7oz -11oz need help quick​
Aliun [14]

Answer:

76 ounces

Step-by-step explanation:

I'm assuming you meant:

5lb+7oz-11oz=

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5lb+7oz-11oz=

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3 0
3 years ago
Professor Halen teaches a College Mathematics class. The scores on the midterm exam are normally distributed with a mean of 72.3
lbvjy [14]

Answer:

14.63% probability that a student scores between 82 and 90

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 = 72.3, \sigma = 8.9

What is the probability that a student scores between 82 and 90?

This is the pvalue of Z when X = 90 subtracted by the pvalue of Z when X = 82. So

X = 90

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

Z = \frac{90 - 73.9}{8.9}

Z = 1.81

Z = 1.81 has a pvalue of 0.9649

X = 82

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

Z = \frac{82 - 73.9}{8.9}

Z = 0.91

Z = 0.91 has a pvalue of 0.8186

0.9649 - 0.8186 = 0.1463

14.63% probability that a student scores between 82 and 90

3 0
3 years ago
Lol plsss help me :((
patriot [66]

Answer:

The choice two;

-  \sqrt{3}

Step-by-step explanation:

\sqrt{27}  - 4 \sqrt{3}  \\ 3 \sqrt{3}  - 4 \sqrt{3}   =  - 1 \sqrt{3}  =  -  \sqrt{3}

6 0
2 years ago
S is the midpoint of RT, RS = 4x + 4, and ST = 6x. Find RT.<br><br> Type your answer...
shtirl [24]

Answer:

Step-by-step explanation:

Ask your teacher

6 0
2 years ago
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