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Pavel [41]
3 years ago
13

Please help! Brainliest! How are the functions y = 2x2 and y = 2x2 + 7 related? How are their graphs related?

Mathematics
1 answer:
Leona [35]3 years ago
5 0
It’s should be B. The graphs will be identical in shape but the second one will be shifted up 7 units
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Which of the following equations have the correct notation?
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A (I cant say it on here for some reason )water fish tank requires a certain salinity. To reach this requirement, the relationsh
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Answer: Represents when the equation is at 5 gallons of water 1.5 pounds of salt is needed to have the correct salinity

Step-by-step explanation:

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3 years ago
Suppose the round-trip airfare between Philadelphia and Los Angeles a month before the departure date follows the normal probabi
QveST [7]

Answer:

52.74% probability that a randomly selected airfare between these two cities will be between $325 and $425

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 question, we have that:

\mu = 387.20, \sigma = 68.50

What is the probability that a randomly selected airfare between these two cities will be between $325 and $425?

This is the pvalue of Z when X = 425 subtracted by the pvalue of Z when X = 325. So

X = 425

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

Z = \frac{425 - 387.20}{68.50}

Z = 0.55

Z = 0.55 has a pvalue of 0.7088

X = 325

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

Z = \frac{325 - 387.20}{68.50}

Z = -0.91

Z = -0.91 has a pvalue of 0.1814

0.7088 - 0.1814 = 0.5274

52.74% probability that a randomly selected airfare between these two cities will be between $325 and $425

7 0
3 years ago
Simplify -5 to the 2nd power, + 8 |-1| + (-3).
madreJ [45]

Answer:

-19

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Hello someone help me please
pshichka [43]

Answer:

B. -1/3

Step-by-step explanation:

replace <em>x</em> with 34 and solve it.

4 0
2 years ago
Read 2 more answers
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