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castortr0y [4]
3 years ago
14

A sample of 49 observations is taken from a normal population with a standard deviation of 10. the sample mean is 55. determine

the 99% confidence interval for the population mean. (round your answers to 2 decimal places.)
Mathematics
1 answer:
Anna35 [415]3 years ago
3 0
The answer I think is D.
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Exponent Practice:<br> x^2/3=64
docker41 [41]
X^2/3 = 64
x^{2} =64^{3}
x = 64^{3/2}

it is easier to first find square root of 64 and than power it to 3
square root of 64 is 8 which means our equation now looks like:
x = 8^3
now the answer is after powering 8 to 3:
x = 512

6 0
4 years ago
What is the distance between (8,-3) and (4,- 7)?
cupoosta [38]

Answer:

5.66 units

Step-by-step explanation:

base: 8-4 = 4

rise: -3-(-)7 = 4

4^2+4^2 = d^2

d^2 = 32

d=5.66 units

8 0
3 years ago
I need help asap:):):
Veronika [31]

Answer:

A.

Step-by-step explanation:

100-25 = 75

75/12.50 = 6

Therefore 6 or less hours.

- Hope that helped! Let me know if you need further explanation.

8 0
3 years ago
If x = 5, what additional information is necessary to show that by SAS?
omeli [17]
Do you have a diagram? But assuming x=5 is a side then you need another side and an angle in between the two sides
6 0
3 years ago
Draw a line through the point (2, 2) with a slope of 1. Draw a line through the point (1,−1) with a slope of 1.
Mars2501 [29]

Answer:

should look like this

Step-by-step explanation:

equations are y=x  and  y = -x if needed

4 0
3 years ago
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