Evaluate the expression.140 - 20
A. 2
B. 1
C. 0
D. 12
Answer: C
Mathematics
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Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-1, -2)} B. {(0, -2)} C. {(1, -3)} D. no solution; ?
Mathematics
Use implicit differentiation to find dy/dx and d2y/dx2.2y - x + xy = 4
A. 
= - 
; 
= 
B. 
= 
; 
= 
C. 
= 
; 
= 
D. 
= - 
; 
= 
Mathematics
Find the most general antiderivative.
dx
A. 
e3x + 8e-x + C
B. 3e3x + 8e-x + C
C. 3e3x + 
e-x + C
D. 3e3x - 8e-x + C
Mathematics
Find the annual amount of depreciation using the straight-line method. Round to the nearest dollar.Cost:$44,000Estimated life:35 yearsEstimated scrap value:None
A. $15,400 B. $4400 C. $500 D. $1257
Mathematics