Identify the numerator and the denominator of the fraction.
A. numerator: 2ya; denominator: 3
B. numerator: 2y; denominator: 3a
C. numerator: 3a; denominator 2y
D. numerator: 
; denominator: 3a
Answer: B
Mathematics
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Find the derivative.y = 9 - 5x3
A. 9 - 15x2 B. -10x2 C. -15x D. -15x2
Mathematics
Use a grapher to find the vertex or x-intercepts, as indicated, of the quadratic function.Find the vertex of the function f(x) = 5x2 - x + 1.
A. (0.1, 1.05) B. (0.1, 0.95) C. (0.1, 1) D. (-0.1, 0.95)
Mathematics
Convert to fraction notation.8
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If the average cost per unit C(x) to produce x units of plywood is given by 
what is the unit cost for 10 units? Round to the nearest cent.
A. $90.00 B. $3.00 C. $60.00 D. $22.50
Mathematics