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dezoksy [38]
3 years ago
6

We examine a population with normal distribution having mean of 1000 and standard deviation 50. What percentage of the populatio

n lies between 850 and 1150?
Mathematics
1 answer:
Dafna11 [192]3 years ago
6 0

Answer:

99.7%

Step-by-step explanation:

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You are applying fertilizer to a football field. The field is 360 feet long and 160 feet wide. You use 8 pounds of fertilizer pe
Assoli18 [71]

Answer: 10 bags

Step-by-step explanation:

First we must calculate the field area. Assuming it is a rectangle then its area equals the product of its length times its width

A =360*160\\\\A = 57600 ft^2

You use 8 pounds of fertilizer per 1,000 square feet

So the amount of fertilizer you should use is:

57,600 ft^2 * \frac{8\ pounds}{1,000\ ft^2} = 460.8\ pounds

As the fertilizer comes in bags of 50 pound then you need

460.8\ pounds * \frac{1\ bag}{50\ pounds} = 9.2\ bags

Since you can not buy 9.2 bags then we round up to the next whole number.

Finally you need 10 bags of fertilizer

6 0
3 years ago
A car originally costs $20,000. Its price went up by 20% and then by another $8,000. How much did the price go up as a percentag
Nataliya [291]

Answer:

60%

Step-by-step explanation:

20,000

we can move the decimal place one to the left to find 10 percent

2,000

multiply 10 x 2 to find twenty percent or 4,000

we add this to the original total. 24,000

then add the 8,000

32,000

we know find one percent of the original total

200

and find the difference between the two totals

32000-20000 = 12,000

12000 divided by 200 which is 6

multiply six by ten to get

60 percent

5 0
3 years ago
13 divided by 10 and 5 sixths in fraction form
xxTIMURxx [149]

Answer:

its 1 1/2

Step-by-step explanation:

Its 1 1/2 or 6/5

7 0
3 years ago
HELPP!!! Ali is competing in a 10-meter high diving event. When he dives, he reachers a maximum height of 12 meters and travels
Andrew [12]

Answer: 56

Step-by-step explanation:

1. 10+12=22

2. 22+3.4= 56

22

+34

   5  6

56 is your anwser

7 0
3 years ago
Solve<br> Y/5 = 7<br> Please help, super stuck &lt;3 many thanks, love u all
vampirchik [111]

Answer:

y = 35

Step-by-step explanation:

just because im in high school and therefore i know its correct

6 0
2 years ago
Read 2 more answers
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