Solve the problem.A grain dealer sold to one customer 5 bushels of wheat, 2 of corn, and 3 of rye, for $34.20; to another, 2 of wheat, 3 of corn, and 5 of rye, for $42.00; and to a third, 3 of wheat, 5 of corn, and 2 of rye, for $39.00. What was the price per bushel for corn?
A. $2.40
B. $4.50
C. $2.90
D. $4.61
Answer: D
Mathematics
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Sketch the graph of the function. Give the coordinates of the vertex.f(x) = 3(x + 3)2 + 1
A. vertex (-1, 3)
B. vertex (3, 1)
C. vertex (-3, 1)
D. vertex (1, -3)
Mathematics
Solve the problem.Given log102 = 0.3010 and log103 = 0.4771.Find log10 108.
A. 0.1992 B. 2.0333 C. 1.8572 D. 0.8616
Mathematics
Multiply the polynomials and simplify by combining like terms.(2x2 + 5x + 5)(x2 - 5x - 4)
A. 2x4 - 5x3 - 28x2 - 45x - 20 B. 2x4 - 10x3 - 28x2 - 45x - 20 C. 2x4 - 10x3 - 33x2 - 45x - 20 D. 2x4 - 5x3 - 33x2 - 45x - 20
Mathematics
Find the equation of the axis of symmetry.f(x) = -(x + 3)2 + 9
A. x = 9 B. x = -3 C. x = -9 D. x = 3
Mathematics