Question Help Assume that population mean is to be estimated from the sample described. Use the sample results to approximate the margin of error and 95% confidence interval
n = 49, X = 54.8 seconds, s = 6.6 seconds
The margin of error is seconds.
(Round to one decimal place as needed.)

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125