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djverab [1.8K]
3 years ago
6

Help please thanks!!!!!!!!!!

Mathematics
1 answer:
sergeinik [125]3 years ago
6 0
The answer is b please be thankful
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A Statistics class has a test average of 87 with a standard deviation of 2.1. Find the z-score that corresponds to Kate's test s
Leto [7]

Answer:

2.86

Step-by-step explanation:

So I'm pretty sure we don't want the probability, just the zscore

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4 years ago
F(x) = x^2 + 8x + 15; Find f(-14/5)
mamaluj [8]

Answer:

either 449/25 or 11/25 depends on the -14/5 or

Step-by-step explanation:

-  \frac{14}{25}  or \:  \frac{ - 14}{25}

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7 0
2 years ago
Solve 0.25[2.5x + 1.5(x – 4)] = –x.
zheka24 [161]

Answer:

X = 0.75

Step-by-step explanation:

0.25[2.5x + 1.5(X-4)]= -X

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8 0
3 years ago
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