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3 years ago

10

I need help please ^^ with math:

2 answers:

Arlecino [84]3 years ago

4 0

Answer:

14 degrees is th warmest

Pepsi [2]3 years ago

4 0

4 because 2 & 3 are negative which is cold and 14 is not negative but the warmest out of the others

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Please help! Thank you!

viva [34]

Answer:

A

Step-by-step explanation: im not extremely sure about this one though but the x coordinate is nine away from every coordinate of defc and the way it goes left means that the x is negative, the y coordinates of defc prime is positive because it moves up from defc. hope this helps

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3 years ago

For every increase of 1 on the Richter scale, an earthquake is 10 times more powerful. Which of the following models this situat

stiks02 [169]

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3 years ago

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Write the equation of the line that passes through (5,2) and is perpendicular to 5 y = --X x – 5. 4

Basile [38]

Answer: y= 4/5x-2

Step-by-step explanation:

See attached picture

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3 years ago

URGENT! If John walks 1/2 mile each 1/4 hour, how many miles will John walk in one hour?

Juliette [100K]

Answer:

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Step-by-step explanation:

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3 years ago

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A college conducts a common test for all the students. For the Mathematics portion of this test, the scores are normally distrib

Jet001 [13]

Using the normal distribution, it is found that 58.97% of students would be expected to score between 400 and 590.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean $\mu$ and standard deviation $\sigma$ is given by:

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

The z-score measures how many standard deviations the measure is above or below the mean.

Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

$\mu = 502, \sigma = 115$

The proportion of students between 400 and 590 is the <u>p-value of Z when X = 590 subtracted by the p-value of Z when X = 400</u>, hence:

X = 590:

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

$Z = \frac{590 - 502}{115}$

Z = 0.76

Z = 0.76 has a p-value of 0.7764.

X = 400:

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

$Z = \frac{400 - 502}{115}$

Z = -0.89

Z = -0.89 has a p-value of 0.1867.

0.7764 - 0.1867 = 0.5897 = 58.97%.

58.97% of students would be expected to score between 400 and 590.

More can be learned about the normal distribution at brainly.com/question/27643290

#SPJ1

6 0

2 years ago