Solve the problem.Find the value of a for the line that passes through (a, -7) and (5, 8) and is perpendicular to 
A. 0
B. - 
C. - 
D. 
Answer: C
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Given the interval (a, b) on the x-axis with the point x0 inside, find the greatest value for ? > 0 such that for all x, 0 < 
< ? ? a < x < b. a = 1.452, b = 2.736, x0 = 1.807
A. ? = 1 B. ? = 0.355 C. ? = 1.284 D. ? = 0.929
Use the data set {d1, d2, d3, ..., d251} consisting of 251 numbers to answer the following question(s).After sorting the data set (in increasing order from left to right) the first quartile is
A. the average of the numbers in the 62nd and 63rd positions. B. the number in the 63rd position. C. the number in the 64th position. D. the average of the numbers in the 63rd and 64th positions. E. none of these
Use the given functions to find the requested function.f(x) = 2x + 5, g(x) = 4x2Find (f + g)(x).
A. 8x3 + 20x
B. 
C. 2x + 5 + 4x2
D. 2x + 5 - 4x2
Use the power rules to simplify the expression. Use positive exponents to write the answer.(-3x-5y-4)-2
A. 
B. -3x10y8
C. 
D. - 