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MaRussiya [10]
3 years ago
6

Find the surface area of the prism. Please help

Mathematics
1 answer:
Sophie [7]3 years ago
5 0

Answer:

The area of the prism is 54 ft.

Step-by-step explanation:

times 9 times 6 ft and ya get 56

but I don't know If whats you're looking for  

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Dear Math Helper,
valentina_108 [34]

Answer:

n = 98, that is, she scored at the 98th percentile.

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.

In this question, we have that:

She scored 38, so X = 38

Test scores are normally distributed with a mean of 25 and a standard deviation of 6.4.

This means that \mu = 25, \sigma = 6.4

Find the percentile:

We have to find the pvalue of Z. So

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

Z = \frac{38 - 25}{6.4}

Z = 2.03

Z = 2.03 has a pvalue of 0.98(rounding to two decimal places).

So n = 98, that is, she scored at the 98th percentile.

5 0
3 years ago
Find the distance traveled by driving at 55 miles per hour for 3 hours
Triss [41]

Answer:

165

Step-by-step explanation:

55*3= 165

Hope this helps!

3 0
3 years ago
Read 2 more answers
Are the expressions 3/4a + 8 - 1/4a - 2 and 1/2(a + 12) equivalent? Show why or why not.
natta225 [31]

Answer:Yes they are equivalent.

Step-by-step explanation:

3/4a + 8 - 1/4a - 2 1/2(a + 12)

Combine like terms Distributive property

2/4a+6 1/2a+6

2/4=1/2 (simplify)

1/2+6=1/2+6

4 0
3 years ago
Please help a girl out
xxMikexx [17]

Answer:

Quadratic formula is in the 2nd picture.

Step-by-step explanation:

Answers in the photo.

Solve the equation for r by finding a,b, and c  of the quadratic  then applying the quadratic formula.

3 0
3 years ago
Read 2 more answers
Function 1 is defined by the equation p= --3/2r - 5. function 2 is defined by the following table. Which function has a greater
Rus_ich [418]
0-5. Here’s your answer
6 0
3 years ago
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