Multiply.(7.1 - x6)(7.1 + x6)
A. 50.41 + x12
B. x12 - 50.41
C. 50.41 - x12
D. 50.41 - x36
Answer: C
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Write the fraction as a decimal.
A. 0.45
B. 0.4
C. 0.
D. 0.
Find the complex conjugate of the complex number. Then find the product of each complex number and its complex conjugate.-5i
A. 5i; 25 B. 5i; -10 C. -5i; 10 D. 5i; -25
Solve the problem.P(x) = -x3 + 
x2 - 60x + 100, x ? 5 is an approximation to the total profit (in thousands of dollars) from the sale of x hundred thousand tires. Find the number of hundred thousands of tires that must be sold to maximize profit.
A. 4 hundred thousand B. 5.5 hundred thousand C. 5 hundred thousand D. 4.5 hundred thousand
Multiply.(x - 5)(5x2 + x - 3)
A. 5x3 - 26x2 - 15x + 15 B. 5x3 - 24x2 - 8x + 15 C. 5x3 - 24x2 + 15x + 15 D. 5x3 + 24x2 - 8x - 15