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AleksandrR [38]
2 years ago
13

20 points to whoever answers the questions in picture!

Mathematics
1 answer:
Rina8888 [55]2 years ago
5 0
The unit rate is 4/5 or .8. Simply divide 4/5, and then use that to find your other answers. 3/.8=3 3/4 6 1/4* .8= 5.

4 5
3 3 3/4
5 6 1/4
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A researcher selects two samples of 64 participants each. In the first sample, the population mean was 10 and the variance was 1
Nostrana [21]

Answer:

Sample 1 is associated with a larger standard error of the mean.

Step-by-step explanation:

We are given the following in the question:

Formula for standard error:

\text{Standard error} = \dfrac{\sigma}{\sqrt{n}}

Sample 1:

n = 64\\\mu = 10\\\sigma^2 = 16\\\sigma = \sqrt{16} = 4\\\\\text{Standard error} = \dfrac{4}{\sqrt{64}} = \dfrac{4}{8} = 0.5

Sample 2:

n = 64\\\mu = 25\\\sigma^2 = 9\\\sigma = \sqrt{9} = 3\\\\\text{Standard error} = \dfrac{3}{\sqrt{64}} = \dfrac{3}{8} = 0.375

Thus, sample 1 is associated with a larger standard error of the mean.

8 0
2 years ago
A scale drawing of a rectangular plot of land is below, where 2 units is equal to 75 feet. What is the area of the plot of land?
elena-s [515]
The area in units is 60 and in ft is 2,250 since 60/2=30*75=2,250
5 0
3 years ago
PLEASE HELP ASAPPPPPPPP
s344n2d4d5 [400]

1st = -5*2^(1-1) = -5*2^0 = -5*1 = -5
4th = -5 *2^(4-1) = -5*2^3 = -5 *8 = -40
8th = -5*2^(8-1) = -5 *2^7 = -5 *128 = -640

 Answer is 1st choice

3 0
3 years ago
State the horizontal asymptote of the rational function.
puteri [66]

Answer:

there is no meme

Step-by-step explanation:

8 0
3 years ago
Provide the missing reasons for the proof of part of the triangle midsegment theorem.
marissa [1.9K]

Answer:

vdyuygyffcygyhjuuuuuuuyyyu

6 0
2 years ago
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