Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.15x2 - 19xy + 6y2
A. (3x + 2y)(5x + 3y)
B. (15x + 2y)(x + 3y)
C. (3x - 2y)(5x - 3y)
D. Prime
Answer: C
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Solve the problem.An oil storage tank can be described as the volume generated by revolving the area bounded by 
about the x-axis. Find the volume 
of the tank.
A. 140 m3 B. 1.46 m3 C. 35.0 m3 D. 947 m3
Your company produces at most 15 items per week. Its profit P is a function of n, the number of items produced in a week. The marginal profit is given by
.
A: Make a graph of 
versus n.B: For what values of n is the profit increasing?C: How many items per week should be produced in order to maximize profit?
What will be an ideal response?
If n is a natural number, then 10-n = 
. Negative powers of 10 can be used to write the decimal part of Hindu-Arabic numerals in expanded form. Express the expanded form as a Hindu-Arabic numeral.(3 × 10-1) + (7 × 10-2) + (9 × 10-3)
A. 3.79 B. 0.190 C. 0.379 D. 19
Find the product of the complex number and its conjugate.1 - 7i
A. 1 + 49i B. 50 C. 1 - 49i D. -48