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Nata [24]
3 years ago
5

What is cubes in a mathematical term

Mathematics
1 answer:
victus00 [196]3 years ago
4 0
When you cube something you times that number by itself 3 times.

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Hi piiihvvyjcycycfvyfchchv cgcydyfcyv fyiyifycgxt4w67 ftuddtyxd
Nataly_w [17]
Hello person above

How are you?
5 0
3 years ago
(CO6) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is
satela [25.4K]

Answer:

(1) (4.82, 4.98)

(2) Large sample size

(3) Yes, the temperature is within the confidence interval of (37.40, 37.60)

(4) (15.083, 15.117)

Step-by-step explanation:

Confidence Interval (CI) = mean + or - (t×sd)/√n

(1) mean = 4.9, sd = 0.35, n = 68, degree of freedom = n-1 = 68 - 1 = 67

t-value corresponding to 67 degrees of freedom and 95% confidence level is 1.9958

CI = 4.9 + (1.9958×0.35)/√68 = 4.98

CI = 4.9 - (1.9958×0.35)/√68 = 4.82

CI is (4.82, 4.98)

(2) Error margin = (t-value × standard deviation)/√sample size

From the formula above, error margin varies inversely as the square root of the sample size. Since the relationship between the error margin and sample size is inverse, increase in one (sample size) will conversely lead to a decrease in the other (error margin)

(3) mean = 37.5, sd = 0.6, n= 100, degree of freedom = n-1 = 100-1 = 99

t-value corresponding to 99 degrees of freedom and 90% confidence level is 1.6602

CI = 37.5 + (1.6602×0.6)/√100 = 37.5 + 0.10 = 37.60

CI = 37.5 - (1.6602×0.6)/√100 = 37.5 - 0.10 = 37.40

37.53 is within the confidence interval (37.40, 37.60)

(4) mean = 15.10, sd =0.08, n = 104, degree of freedom = n-1 = 104-1 = 103

t-value corresponding to 103 degrees of freedom and 97% confidence interval is 2.2006

CI = 15.10 + (2.2006×0.08)/√104 = 15.10 + 0.017 = 15.117

CI = 15.10 - (2.2006×0.08)/√104 = 15.10 - 0.017 = 15.083

CI is (15.083, 15.117)

4 0
3 years ago
A phone company charges $0.45 for the first minute and $0.35 for each additional minute for a long distance call. Which numerica
Vinvika [58]

0.45+19(0.35)

Total cost $7.10 (0.45+6.65)

8 0
3 years ago
Read 2 more answers
Set 2 Maths has 30 pupils in it.
Ierofanga [76]
80/100 x 30 = 24 because you just multiply percents
4 0
3 years ago
Find the surface area of a cylinder with a height of 8 ft and a base radius of 5 ft.
Maksim231197 [3]

Answer: 408.2 ft^2

Step-by-step explanation:

A=2πrh+2πr2

A=2(3.14)(5)(8)+2(3.14)(5)^2

A=6.28*40+6.28*25
A=251.2+157

A=408.2 ft^2

7 0
2 years ago
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