2 + 2 is ????????????????????

Mathematics

1 answer:

Naily [24]2 years ago

8 0

Answer:

Step-by-step explanation:

2+2=4

ll. ll

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What are the solution(s) of –x2 + 2x + 3 = x2 – 2x + 3?

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Answer:0.369 m

Step-by-step explanation:

Given

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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.

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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.