Answer the question.The length of a rectangle is 4 inches more than its width. If 2 inches are taken from the length and added to the width, the figure becomes a square with an area of 272.25 sq inches. If the width of the rectangle is x, what is the length of the rectangle in terms of x?
A. x + 4
B. 4x
C. 4 - x
D. x - 4
Answer: A
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Solve the problem. Round to the nearest hundredth, if necessary.Assume that the mean length of a human pregnancy is 268 days with a standard deviation of 9 days. What percentage of human pregnancies do we expect to last no more than 261 days?
A. 21.77% B. 22.66% C. 19.22% D. 21.19%
Use the data set {0, -1, -3, 3, 3, -5, -7, 10} to answer the following question(s).The standard deviation of the data set is
A. 25.25. B. 14.213. C. 5.972. D. 5.025. E. none of these
Use the commutative and/or associative property of addition and then simplify.4 + (1 + x)
A. 5 B. x + 5 C. 4x D. x + 4
Find the requested polynomial. Find a polynomial function of degree 3 with -2, 3, 5 as zeros.
A. f(x) = x3 + 6x2 - 1x - 30 B. f(x) = 3x3 + 6x2 - 1x - 15 C. f(x) = x3 + 8x2 - 1x - 6 D. f(x) = x3 - 6x2 - 1x + 30