Solve the system by elimination.3p + 4q = -1.56p + 8q = -3
A. p = -1.5, q = 1.5
B. p = 2, q = -1.5
C. p = 1.5, q = -1.5
D. p = 1.5, q = -1
Answer: C
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Use the method of undetermined coefficients to solve the differential equation.y" - 7y' + 10y = ex
A. y = C1e-5x + C2e-2x + 
ex
B. y = C1e-5x + C2e-2x - 
ex
C. y = C1e5x + C2e2x + 
xex
D. y = C1e5x + C2e2x + 
ex
Complete.16 gal = qt
A. 128 B. 256 C. 8 D. 64
Solve the problem using the tables below.
Jack started a whole-life insurance policy for $70,000 when he was 23 years old. At age 50, the policy has a cash value of $5010 and he converts the policy to extended term insurance for the same face value. Use 20-year level term rates to estimate the number of years of extended term insurance he has using a non-tobacco rate. Round to the nearest hundredth when necessary.
A. 16.27 years B. 27.63 years C. 11.95 years D. 20.75 years
Solve the system using matrices. If there is no solution or if there are infinitely many solutions and a system's equations are dependent, so state.
A. infinitely many solutions; dependent equations
B. {(2, 4)}
C. 
D. no solution or ?