Solve the equation.31 + 2x = 27
A. {1}
B. {9}
C. {-1}
D. {3}
Answer: A
Mathematics
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Solve the problem.Let u = 6i + j, v = i + j, and w = i - j. Find scalars a and b such that u = av + bw.
A. 6v - w B. 3.500 v + 2.500w C. 6v + w D. 0.2857 v + 0.4000 w
Mathematics
Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. no solution; ?
B. {(1, 1)}
C. infinitely many solutions; {
y - 4x = 6} or {
6y = 24x + 36}
D. {(-1.5, -1)}
Mathematics
Solve the problem.The sum of twice a number and 16 less than the number is the same as the difference between -8 and the number. What is the number?
A. 3 B. 2 C. 1 D. 4
Mathematics
Tell whether or not the rational expressions are equivalent.
, 
A. Yes B. No
Mathematics