Without graphing, tell if the system is inconsistent, the equations are dependent, or neither.x + y = -5x - y = 3
A. Inconsistent
B. Dependent
C. Neither
Answer: C
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Use the integral test to determine whether the series converges.
A. diverges B. converges
Find the standard deviation for each data set. Round to one more place than the data.158, 182, 170, 264, 300, 238, 126, 158, 168
A. 24.5 B. 57.7 C. 54.4 D. 61.7
Use the graph of a power function and transformations to sketch the graph of the polynomial function.f(x) = 3x4
A. 
B. 
C. 
D. 
Find the system of equations to model the problem. DO NOT SOLVE THIS SYSTEM.A $124,000 trust is to be invested in bonds paying 9%, CDs paying 8%, and mortgages paying 10%. The sum of the amount invested in bonds and the amount invested in CDs must equal the mortgage investment. To earn an $11,400 annual income from the investments, how much should the bank invest in each?Let x represent the amount invested in bonds, y the amount invested in CDs, and z the amount invested in mortgages.
A. x + y - z = 0 x + y + z = 124,000 0.09x + 0.08y + 0.1z = 11,400 B. x + y + z = 0 x + y - 9z = 124,000 0.1x + 0.08y - 0.09z = 11,400 C. x + y - z = 11,400 x - y + 9z = 22 8x + y + z = 124,000 D. x + y - z = 0 x + y + z = 124,000 9x + 8y + z = 11,400