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Zina [86]
2 years ago
12

What percentage is 650 m to 4 km.

Mathematics
1 answer:
Nina [5.8K]2 years ago
3 0

Answer: 16.25%

Step-by-step explanation:

Change
650m = 0.65 km

Convert into percentage 0.65/ 4 x 100 = 16.25

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The average and standard deviation of a measurement is 15.0 ± 5.0. if 100 students measured the value, how many would you expect
AURORKA [14]

Solution: We are given:

\mu=15, \sigma=5

Using the empirical rule, we have:

\mu \pm \sigma covers 68% of data.

Also the percentage of values below mean = Percentage of values above mean = 50%

Now, let's find the z score for x=20

z=\frac{20-15}{5}=1

Therefore, the percentage of values greater than 1 standard deviation above mean 50\% - \frac{68\%}{2} =50\%-34\%=16%

Expected number of students = 16% of 100 = 16


4 0
3 years ago
Please answer i need help!!!!! WILL GIVE BRAINLIEST!!!!!
sp2606 [1]

1. D. 4 x 4 x 4 x 4 x 4

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3. D. (8², 100^1, 11², 5³)

4. D. Sum (There's No addition anywhere in that equation)

5. C. h (Because there's no number before the h²)

6. C. 24

7. C. Raise 9 to the 2nd power (Follow PEMDAS, after doing the parentheses, you need to do the exponents, and C. you need to the exponents)

8. A. 4xy

9. C. 18 (I followed PEMDAS, and received the answer 18)

10. B. 49

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4 0
2 years ago
72% of what number is 27?
Tems11 [23]
72 is 266.666666667% of 27
3 0
2 years ago
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I will literally give you my life if you. help me with these integer questions-
Sphinxa [80]

Answer:

10. 23

11. -17

12. 0

13. -4

14. -6

15. 4

Explanation:

10. 8+15= 23

11. -8-9= -17

12. 8-8= 0

13. -8+4= -4 (same as 4-8)

14. -10+4= -6 (same as 4-10)

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3 years ago
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garri49 [273]

Answer:

-4

Step-by-step explanation:

The equation is in slope-intercept format, y=mx+b. The coefficient in front of the x is the slope as represented by the letter m.

5 0
2 years ago
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