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dexar [7]
3 years ago
9

I will mark as the brainliest answer Please show your work

Mathematics
1 answer:
swat323 years ago
4 0
3 and 5 are the answer
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From the beginning of the day the temperature rose 15° so that by 4 pm it was 87°. What was the temperature at the start of the
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Answer:

72 degrees

Step-by-step explanation:

the temperature rose 15, and ended as 87, so the temp was 72 before it rose

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A triangle's side lengths are 15 cm and 10 cm. Write an inequality to determinte the possible measure for the missing side lengt
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In an article about the cost of health care, Money magazine reported that a visit to a hospital emergency room for something as
baherus [9]

Answer:

Probability that the cost will be less than $500 is 0.95994 .

Step-by-step explanation:

We are given that Money magazine reported that a visit to a hospital emergency room for something as simple as a sore throat has a mean cost of $348 with a standard deviation of $87.

Let X = cost of a hospital emergency room visit for this medical service

So, X ~ N(\mu=348, \sigma^{2} =87^{2})

The standard normal z score distribution is given by;

              Z = \frac{X-\mu}{\sigma} ~ N(0,1)

(a) Probability that the cost will be less than $500 = P(X < $500)

    P(X < 500) = P( \frac{X-\mu}{\sigma} < \frac{500-348}{87} ) = P(Z < 1.75) = 0.95994 {from z table}

Therefore, the probability that the cost will be less than $500 is 0.95994 .

                                               

3 0
3 years ago
The telephone company made this table to show the number of telephones in the homes they surveyed: Phones in home o 1 2 34 or mo
Sedbober [7]

his helps!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

answer: 24,000

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3 years ago
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