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olga_2 [115]
3 years ago
8

Keisha is working on a math 2 worksheet with 50 problems she has completed 20 problems in 25 minutes if she continues at the sam

e Pace what will the total time be for her to complete the worksheet
Mathematics
1 answer:
EastWind [94]3 years ago
8 0
It will take her 62.5 min to finish her homework
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The price of a cap is increased by 25%.By how much percent should its price be
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Answer: 20%

Step-by-step explanation:

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3 years ago
Given here are a set of sample data: 12.0, 18.3, 29.6, 14.3, and 27.8. the sample standard deviation for this data is equal to _
disa [49]
The answer is 7.9306

Using the formula in the attached:
Where: xi = sample value; μ = sample mean; n = sample size

1.) Calculate the mean first:
μ = 12.0 + 18.3 + 29.6 + 14.3 + 27.8 / 5
   = 102 / 5
μ = 20.4

2.) Using the mean, calculate (xi - μ)² for each value:
(12.0 - 20.4)² = 70.56
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(29.6 - 20.4)² = 84.64
(14.3 - 20.4)² = 37.21
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3.) Sum the squared differences and divide by n - 1.
μ = 70.56 + 4.41 + 84.64 + 37.21 + 54.76
   = 251.58 / 5-1
μ = 62.895 (this is now called sample variance)

4.) Get the square root of the sample variance:
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3 years ago
(10v^3 + 71v^2 + 11v+23) / (v+ 7)
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2 years ago
A line with a slope of -1/2 passes thru the point (-4,3)...Which equation represents this line?
BaLLatris [955]
Here you go!! Hope this helps!!!!

7 0
3 years ago
Read 2 more answers
Figure 3<br> 2n + 10<br> 140<br> 4n -40<br> 80<br> 2n<br> 3n - 20<br> I need help
abruzzese [7]

Answer:

2n +10= 140

4n- 40= 80

2n= 3n - 20

Step-by-step explanation:

it is the am progression or sum progression

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2 years ago
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