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Simora [160]
3 years ago
11

Polygon F has an area of 36 square units. Aimar drew a scaled version of Polygon F and labeled it Polygon G. Polygon G has an ar

ea of 4 square units.
What scale factor did Aimar use to go from Polygon F to Polygon G?
Mathematics
1 answer:
timofeeve [1]3 years ago
6 0

Answer:

1/3

Step-by-step explanation:

im just smart (wink)

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Suppose that the scores of a history test are normally distributed with a mean of 565 and a standard deviation of 113. a) What p
zvonat [6]

Answer:

15.39% of the scores are less than 450

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 = 565, \sigma = 113

What percentage of the scores are less than 450?

This is the pvalue of Z when X = 450. So

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

Z = \frac{450 - 565}{113}

Z = -1.02

Z = -1.02 has a pvalue of 0.1539

15.39% of the scores are less than 450

6 0
3 years ago
Liz was on vacation when her wallet was stolen. By the time she reported her 3 credit cards missing, the criminal had charged ov
tamaranim1 [39]
Liz would have to pay $45,000. 3 x 15,000 = 45,000. Hope this helps
7 0
3 years ago
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Select the three equations that have
MakcuM [25]

Answer:y+2.9=11, 2y+1=17.2, 28.4-y=20.3

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Radius OA of circle O has a slope of 2.5. What is the slope of the line tangent to circle O to point A?
mixer [17]
The tangent at A is perpendicular to OA, so has a slope that is the negative reciprocal of that of the radius: -1/2.5 = -2/5.
5 0
3 years ago
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What is the expression under the radical sign in the quadratic formula called? *
morpeh [17]
<h3>Answer: C) Discriminant</h3>

The formula for the discriminant is

d = b^2 - 4ac

If d < 0, then there are no real number solutions

If d = 0, then you have exactly one real solution

If d > 0, then you have two different real number solutions

6 0
3 years ago
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