Hey! im confused on this. ill give more points if you end up being correct :)

Mathematics

1 answer:

Svetlanka [38]2 years ago

5 0

Answer:

Step-by-step explanation:

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What is the measure of the missing angle of the triangle? Round your answer to the nearest degree.

a_sh-v [17]

X=sin^-1(45/54)
X=56 degrees

7 0

2 years ago

Pls guys help me pls pls :(

aleksklad [387]

Answer:

The answer is option C.

Step-by-step explanation:

The lines are neither parallel nor perpendicular

Hope this helps you

7 0

2 years ago

NEED HELP ASAP please

svetlana [45]

Answer:

Step-by-step explanation:

The problem is asking to multiply x-5 by x^2, so we can set it up to distribute the x^2 to both values. The final answer would therefore be x^2(x-5), which is D.

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2 years ago

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Mary and Jane both took PSY230 last semester but they were in two different sections taught by different professors. Mary's clas

Greeley [361]

Answer:

Due to the higher z-score, Jane did better in class.

Step-by-step explanation:

Z-score:

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:

Whoever's grade had the better z-score did better in class.

Mary's:

Mean of 85, standard deviation of 5, grade of 88. This means that $\mu = 85, \sigma = 5, X = 88$ . So