Maya has to divide by 4, not subtract 4 <span>C:She did not divide 28 by 4. </span>
Answer:
its either a or b but like im pretty sure its A
Step-by-step explanation:
Step-by-step explanation: This simple confidence interval calculator uses a Z statistic and sample mean (M) to generate an interval estimate of a population mean (μ).
Note: You should only use this calculator if (a) your sample size is 30 or greater; and/or (b) you know the population standard deviation (σ), and use this instead of your sample's standard deviation (an unusual situation). If your data does not meet these requirements, consider using the t statistic to generate a confidence interval.
where:
M = sample mean
Z = Z statistic determined by confidence level
sM = standard error = √(s2/n)
As you can see, to perform this calculation you need to know your sample mean, the number of items in your sample, and your sample's standard deviation (or population's standard deviation if your sample size is smaller than 30). (If you need to calculate mean and standard deviation from a set of raw scores, you can do so using our descriptive statistics tools.)
Based on the amount borrowed and the interest per year, Big Brothers, Inc will pay an annual payment of $59,973.15.
<h3>How much will Big Brothers, Inc. pay annually?</h3>
This can be found by using the present value of an annuity formula because the annual payment will be constant and therefore like an annuity.
Formula is:
Present value of annuity = Annual payment x ( 1 - (1 + rate) ^ -number of periods) / rate
Solving gives:
267,999 = Amount x ( 1 - ( 1 + 18.16%)⁻¹⁰) / 18.16%
267,999 = Amount x 4.46865
Amount = 267,999 / 4.46865
= $59,973.15
Find out more on loan present value at brainly.com/question/15088278.
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Answer:
20
Step-by-step explanation:
For cutting problems, we make the assumption that there is no loss of length due to the material moved or removed by cutting.
2 m = 200 cm
so there are ...
(200 cm)/(10 cm/section) = 20 sections
that can be cut from the pipe.
