Please can someone help me with INTERIM CHECKPOINT Math problems

Mathematics

1 answer:

gogolik [260]3 years ago

8 0

The answer will be -32

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Jake bought a mountain bike on sale. He saved $72 on the bike,

scoundrel [369]

15%. 480-72=408
480x15%= 72

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3 years ago

Please help equation in picture(geometry)

vovangra [49]

Answer:

2)SSS

3)SAS

4)Not Possible

5)SSS

6)SAS

7)Not Possible

8)SAS

Step-by-step explanation:

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3 years ago

Solve for the value of x in:<br> x^2+ 6x + 25 = 0

Julli [10]

Answer:

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3 years ago

An English professor assigns letter grades on a test according to the following scheme. A: Top 9% of scores B: Scores below the

sergeinik [125]

Answer:

The minimum score required for an A grade is 83.

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 of 72.3 and a standard deviation of 8.

This means that $\mu = 72.3, \sigma = 8$