Solve and simplify.x + 
= 
A. x = 
B. x = 
C. x = 
D. x = 
Answer: B
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Solve the problem.If u = 12i - 2j and v = -7i + 9j, find u + v.
A. 4i + 7j B. 5i + 7j C. 19i + 4j D. -19i + 7j
Provide an appropriate response.One thousand people have been sampled and their brand preferences (for a particular product) among brands A, B, and C have been determined. Assume that the power of the transition matrix after 10 cycles (months) is as follows:ABC P10 = 
.Can you determine from this how many people use each brand after 10 months?
A. Yes B. No
Rewrite the division as a multiplication.
A. 6 ? 
B. -6 ? -15
C. 6 ? 15
D. -6 ? 
The following expressions represent denominators of rational expressions. Find their LCD.(a + 3)(a + 2) and (a + 3)(a - 2)
A. (a + 3)(a + 2)(a - 2)(a - 3) B. (a + 3)(a + 2)(a - 3) C. (a + 3)2(a + 2)(a - 2) D. (a + 3)(a + 2)(a - 2)