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2 years ago

14

The scores on a test are normally distributed with a mean of 210 and a standard deviation of 20. What is the score that is 1 dev

iation (SD) above the mean?

1 answer:

telo118 [61]2 years ago

8 0

Answer:The score above the mean is 50 percent.

Step-by-step explanation:

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Solve –9.4 Greater-than-or-equal-to 1.7x + 4.2.

Nutka1998 [239]

Answer:

x≤-8

Step-by-step explanation:

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3 years ago

What’s the reciprocal of 5 4/9

stealth61 [152]

Answer:

9/49

Step-by-step explanation:

5 4/9 =49/9 and49/9*9/49=1 then reciprocal of 49/9 is9/49

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2 years ago

Goran rented a truck for one day. There was a base fee of $17.99 , and there was an additional charge of 75 cents for each mile

Vikki [24]

Cost of the total miles travelled
= $191.24 - $17.99
= $173.25

Miles travelled
= $173.25 ÷ 0.75
= 129.9375 miles
≈ 130 miles (3s.f)

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4 years ago

In the figure, angle K measures 45 degrees. What is the measurement of angle C?

Delvig [45]

It is 45 because the triangle should be 180 degree and if K is 45 then J should be 45, too. We all know that the right triangle is 90 degree, so we add angle J and G, it is 135. Lastly, you subtract 180- 135=45.

5 0

3 years ago

Alex made 135 out of 540 cookies for the bake sale. What percent of cookies did Alex make for the bake sale?

dsp73

Answer:

c) 25%

Step-by-step explanation:

135÷540=0.25

so 25%

4 0

2 years ago