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Ierofanga [76]
3 years ago
11

PLEASE HELP::: Louise used this figure to model the expression 20/4.

Mathematics
2 answers:
nata0808 [166]3 years ago
8 0
The answer is C because if it doesn't start at zero, then it wouldn't make 5 groups. 
mars1129 [50]3 years ago
4 0
Did you figure out the answer cause i need it 
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QUICK! TEN POINTS!! BRAINLIEST FOR WHOEVER GETS IT RIGHT!!!
ivann1987 [24]

Answer:

15

Step-by-step explanation:

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3 years ago
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4. Find the following angles(7 points):
horrorfan [7]

Answer:

∠A: 98 (Is a vertical angle to the 98 degrees)

∠D: 151 (180-29)

∠H: 29 (Is a vertical angle to the 29 degrees)

∠I: 29

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∠M: 151 (Vert angle to <J)

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5 0
2 years ago
If two pyramids have the same height, what must be true of the pyramids for them to also have the same volume? The pyramids must
vodka [1.7K]

Answer:

The area of the bases must be the same.

Step-by-step explanation:

Volume=LxWxH

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6 0
3 years ago
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Lengths of full-term babies in the US are Normally distributed with a mean length of 20.5 inches and a standard deviation of 0.9
mash [69]

Answer:

66.48% of full-term babies are between 19 and 21 inches long at birth

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.

Mean length of 20.5 inches and a standard deviation of 0.90 inches.

This means that \mu = 20.5, \sigma = 0.9

What percentage of full-term babies are between 19 and 21 inches long at birth?

The proportion is the p-value of Z when X = 21 subtracted by the p-value of Z when X = 19. Then

X = 21

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

Z = \frac{21 - 20.5}{0.9}

Z = 0.56

Z = 0.56 has a p-value of 0.7123

X = 19

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

Z = \frac{19 - 20.5}{0.9}

Z = -1.67

Z = -1.67 has a p-value of 0.0475

0.7123 - 0.0475 = 0.6648

0.6648*100% = 66.48%

66.48% of full-term babies are between 19 and 21 inches long at birth

5 0
2 years ago
Find the 64th term of the following arithmetic sequence.<br> 8,11,14,17
ruslelena [56]

Answer: 197

Step-by-step explanation:

The nth term is 3n+5

so the 64th term will be

(3 x 64)+5

192+5

= 197

7 0
3 years ago
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