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Nadusha1986 [10]
2 years ago
14

What is the area of the polygon below?

Mathematics
1 answer:
emmasim [6.3K]2 years ago
3 0

Answer:

20

Step-by-step explanation:

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I can't figure out how to do this problem.
Marianna [84]

Have you tried multiplying 5(3)+2(2)+1?

15 + 4 + 1 = 20 ?

Im sorry I'm not real good with math.

5 0
3 years ago
Read 2 more answers
Which equation is equivalent to startroot x^2 + 81 EndRoot = x + 10?
Nitella [24]

Answer:given below

Step-by-step explanation:

sqrt x^2 +81= x + 10

x^2 + 81 = (x+10)^2

x^2 + 81 = x^2 + 20x + 100

so answer is:  

x^2 + 81 = x^2 +20x + 100

..HOPE IT HELPS YOU...ALL THE BEST

3 0
3 years ago
8.52 The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches
sweet [91]

Answer:

Heights of 29.5 and below could be a problem.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

The heights of 2-year-old children are normally distributed with a mean of 32 inches and a standard deviation of 1.5 inches.

This means that \mu = 32, \sigma = 1.5

There may be a problem when a child is in the top or bottom 5% of heights. Determine the heights of 2-year-old children that could be a problem.

Heights at the 5th percentile and below. The 5th percentile is X when Z has a p-value of 0.05, so X when Z = -1.645. Thus

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

-1.645 = \frac{X - 32}{1.5}

X - 32 = -1.645*1.5

X = 29.5

Heights of 29.5 and below could be a problem.

4 0
2 years ago
Can you please help me with number 21 please
yKpoI14uk [10]

Answer:

well it simply tells you if you think your right on all of them then press yes if not press no

8 0
2 years ago
ANSWER THIS QUICK QUESTION FOR 16 POINTS!
salantis [7]

I believe it's C E.

They both look pretty equal and line up perfectly with E. Hope this helps!

7 0
2 years ago
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