Provide an appropriate response.For the system 5x - 7y = -4 6x + 3y = -1find the value of the determinant D.
A. -29
B. 57
C. -27
D. 19
Answer: B
You might also like to view...
Solve the problem.Find the volume of the solid generated by revolving the region in the first quadrant bounded by the x-axis and the curve y = x cos x, 0 ? x ? ?/2 about the y-axis.
A. 
+ 2?2 - 4?
B. 
- 8?
C. 
- 4?
D. 
- 4?
Find the product and simplify.
? 
A. 9
B. 
C. 3
D. 35
Solve the problem.A student deposits $250 into an account with an interest rate of r. If the interest is compounded annually, after 2 years, the amount of money in the account is given by 
. Find the polynomial that represents the amount of money in the account after 2 years. (Hint: Multiply 
; then distribute 250.)
A. 250r B. 250 + 500r + 250r2 C. 250 + 250r2 D. 250 + 250r + 250r2
Solve the problem.On a gambling boat, Gertrude doubled her bet each time she won. If her first winning bet was $5 and she won six consecutive bets, find how much she won on the sixth bet. Find the total amount she won on these six bets.
A. $160; $315 B. $320; $635 C. $80; $155 D. $320; $315