Solve for an angle in right triangles

Mathematics

1 answer:

Dvinal [7]3 years ago

5 0

Answer:

41.81

Step-by-step explanation:

you use (sin)

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3^2∙3^n simplifies to 3^20

yan [13]

2*3=6
6*3.33=20
3^20
i hope that helps

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3 years ago

The ortiz children were given $20 spending money. By the end of day two, Joe had spent 7/8 of his money, and Lila had spent 3/4

skelet666 [1.2K]

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3 years ago

Test scores are normally distributed with a mean of 500. Convert the given score to a z-score, using the given standard deviatio

Bond [772]

Answer:

The percentage of students who scored below 620 is 93.32%.

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:

$\mu = 500, \sigma = 80$