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4 years ago

What is the best first step in solving the equation 4 + squrt(6x) = 5?

1 answer:

7 0

The best answer to this question is to subtract 4 from both sides. This isolates the square root and sets you up for squaring both sides of the equation.

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Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equa

kondor19780726 [428]

Answer: 0.6827

Step-by-step explanation:

Given : Mean IQ score : $\mu=105$

Standard deviation : $\sigma=15$

We assume that adults have IQ scores that are normally distributed .

Let x be the random variable that represents the IQ score of adults .

z-score : $z=\dfrac{x-\mu}{\sigma}$

For x= 90

$z=\dfrac{90-105}{15}\approx-1$

For x= 120

$z=\dfrac{120-105}{15}\approx1$

By using the standard normal distribution table , we have

The p-value : $P(90$

$P(z$

Hence, the probability that a randomly selected adult has an IQ between 90 and 120 =0.6827

5 0

3 years ago

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What is 3774 divided by 37

Strike441 [17]

102 thts the anwser ur welcome

6 0

3 years ago

Which system of equations would have no

jenyasd209 [6]

Answer:

hi it's

Easy B

Step-by-step explanation:

No Problem

8 0

3 years ago

I need the written form for 293,805

yan [13]

Two hundred ninety three thousand eight hundred and five

5 0

4 years ago

Simplify the fraction completly<br> 36/100

mel-nik [20]

Answer:

9/25

Step-by-step explanation:

If you divide 36 and 100 by 4, you get 9 and 25.

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3 years ago

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