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ser-zykov [4K]
2 years ago
14

HELP I AM TIMED AND EXPLAIN HOW YOU GOT IT

Mathematics
1 answer:
Illusion [34]2 years ago
5 0

Answer:

C) p + 3 < 20

Step-by-step explanation:

Since the max is 20, it has to be < 20

p + 3 < 20

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A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.
Crank

Answer: 1.25

Step-by-step explanation:

Given: A college-entrance exam is designed so that scores are normally distributed with a mean(\mu) = 500 and a standard deviation(\sigma) =  100.

A z-score measures how many standard deviations a given measurement deviates from the mean.

Let Y be a random variable that denotes the scores in the exam.

Formula for z-score = \dfrac{Y-\mu}{\sigma}

Z-score = \dfrac{625-500}{100}

⇒ Z-score = \dfrac{125}{100}

⇒Z-score =1.25

Therefore , the required z-score = 1.25

6 0
3 years ago
- 7 - w &lt;10 what is the answer
sesenic [268]
-7-w<10
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2 years ago
A formula is expressed as D= a(2+kt). Express k in the terms of D, a and t? (Show work)
Mariulka [41]
SIMPLIFIED \: \: ALGEBRA \\ \\ \\\\We \: are \: given \: - \\ \\ \: \\ D \: = \: a \: ( \: 2 + kt \: ) \\ \\ D \: = \: 2a \: + \: akt \: \\ \\ D \: - \: 2a \: = \: akt \: \\ \\ \frac{D \: - \: 2a}{at} \: = \: k \\ \\ \\ Therefore \: , \: in \: terms \: of \: D \: , \: \: a \:, \: \: and \:  \: t \: \\ \\ k \: = \: \frac{D - 2a}{at \: } \: \: \: \: \: \: \: Ans.
7 0
2 years ago
I need help finding the answer
Deffense [45]

Answer:

3

Step-by-step explanation:

as the hour goes up one the temperature rises by 3

3 0
3 years ago
Read 2 more answers
What is true for f (x) = 4 times 2x
loris [4]

Answer:

f(x) = 8x

Explanation:

4 x 2 =8

4 0
3 years ago
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