Find the indicated vector in terms of i and j.If v = 9i + 3j, find 3v.
A. 12i + 6j
B. 12i + 3j
C. 27i + 3j
D. 27i + 9j
Answer: D
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The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = 
A. y2 = 10x - 25 B. x2 = 10y - 25 C. y2 = 25 - 10x D. x2 = 25 - 10y
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.48a4b - 75b3
A. 3b(4a + 5b)2 B. 3b(4a2 + 5b)(4a2 - 5b) C. 3b(4a - 5b)2 D. 48a4b - 75b3
Solve the problem.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If V = 154.0 in.3 when T = 210° and P = 15 lb/in.2, what is the volume when T = 350° and P = 10 lb/in.2?
A. 345.0 in.3 B. 395.0 in.3 C. 375.0 in.3 D. 385.0 in.3
Use the distributive property to write the sum as a product.13 ? 1 + 13 ? z
A. (13 + 13z) B. 13(1 + z) C. (13z) D. 14(z)