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Paraphin [41]
3 years ago
13

The diameter of a circle is 8 miles.What is the circle’s radius?

Mathematics
1 answer:
zmey [24]3 years ago
8 0

Answer:

4 miles

Step-by-step explanation:

because radius is 2 times of circle

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The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.8 millimeters and a standard deviati
atroni [7]

Answer:

5.70 < X < 5.89

Step-by-step explanation:

Z = ±1.40507156

z = (x - μ)/σ

1.40507156 = (x - 5.8)/.07

5.70 < X < 5.89

4 0
3 years ago
Jeremy's score was 1.75 standard deviations above the mean. which kf thr following is closest to his percentile rank
Gelneren [198K]
The answer is 96%.

Explanation:
It is generally presumed that the scores are normally distributed.

1) You are given how many standard deviations from the mean Jeremy's score is. This is exactly the definition of the z-score. Therefore z = 1.75

2) Look at a left-tail z-table in order to find the area of the normal curve on the left of your z-score (see picture attached). A = 0.9599

3) Multiply the area by 100 in order to find the percentile:
<span>0.9599 </span>× 100 = 95.99
Therefore, 95.99% of the students scored less than Jeremy.

Hence, the answer is 96%.

4 0
3 years ago
A triangle has verticles of a(6,-2) b(4,-4) c(1,0)
AfilCa [17]

Answer

Ask full questions to which we can answer properly

Step-by-step explanation:

thanks

6 0
3 years ago
Hudson is already 40 miles away from home on his drive back to college. He is driving 65 mi/hr. Write an equation that models th
sergejj [24]
He is 40 mins away form home because he is going 65 mi/hr = 1 min per mile 


hopefully that helps you make an equation
6 0
3 years ago
A stocks value decreased the same amount each day for 4 days. If the total change in value was -2.5 what was the change each day
KIM [24]

Answer:

-0.625

Step-by-step explanation:

4 0
2 years ago
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