Answer:
x-y
Step-by-step explanation:
when you subtract (-2x-8y)-(-3x-7y)
you have to distribute that negative onto -3x-7y which turns it positive
which results in -2x-8y+3x+7y
simplified to x-y
half the confidence interval is the answer.
The margin of error is a statistical measure that explains the difference between the actual and expected results of a random survey sample. Simply put, tolerances allow you to measure the level of unpredictability of your data and findings.
The margin of error is the amount added and subtracted in the confidence interval. The standard error is the standard deviation of the sample statistics when many samples of the same size can be obtained.
E = zs√n. The quantity E is called the margin of error. The margin of error is half the width of the confidence interval. The confidence interval may be given as ˉx ± E. For example, 9.95 ± 0.43.
Learn more about the margin of error here:brainly.com/question/6650225
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Area of rectangle=30•12=360 square meters
Area of semicircle=3.14•15•15=353.25 square meters
360+353.25=713.25 square meters
Answer:
c
Step-by-step explanation:
C is the answer because the fractions are not proportional.
Answer: C. 9/14, 3/4