2 years ago

4x(10-3+2) simplify expression

Mathematics

2 answers:

UkoKoshka [18]2 years ago

7 0

The answer is 20 use pemdas (parenthesis,exponents,multiplication,divide,add,subtract)

iris [78.8K]2 years ago

3 0

Answer:

Step-by-step explanation:

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9 months ago

The miles-per-gallon rating of passenger cars is a normally distributed random variable with a mean of 33.8 mpg and a standard d

EleoNora [17]

Answer:

The probability that a randomly selected passenger car gets more than 37.3 mpg is 0.1587.

Step-by-step explanation:

Let the random variable X represent the miles-per-gallon rating of passenger cars.

It is provided that $X\sim N(\mu=33.8,\ \sigma^{2}=3.5^{2})$ .

Compute the probability that a randomly selected passenger car gets more than 37.3 mpg as follows:

$P(X>37.3)=P(\frac{X-\mu}{\sigma}>\frac{37.3-33.8}{3.5})$

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Thus, the probability that a randomly selected passenger car gets more than 37.3 mpg is 0.1587.

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