Solve the system for x and y using Cramer's rule. Assume a and b are nonzero constants.x + 
y = a
x + y = b
A. 
B. 
C. 
D. 
Answer: A
Mathematics
You might also like to view...
Solve the problem.Suppose that $2400 is invested at 3% interest, compounded quarterly. Find the function for the amount of money after t years.
A. A(t) = 2400(1.0075)t B. A(t) = 2400(1.03)4t C. A(t) = 2400(1.03)t D. A(t) = 2400(1.0075)4t
Mathematics
Solve the problem.A lumber yard has fixed costs of $6146.50 a day and variable costs of $1.00 per board-foot produced. The company gets $2.90 per board-foot sold. How many board-feet must be produced daily to break even?
A. 6146 board-feet B. 2156 board-feet C. 3235 board-feet D. 1576 board-feet
Mathematics
Determine whether the sequence is geometric.2, 2, 6, 6, 18, 18, . . .
A. Geometric B. Not geometric
Mathematics
Find the quotient.
A. - 
B. 28
C. -28
D. -38
Mathematics