Provide an appropriate response.Solve the system of equations using the substitution method:4x - 2y = 72x - y = 5
A. inconsistent; no solution
B. (-3, -11)
C. (1, -3)
D. dependent; many solutions
Answer: A
Mathematics
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Use implicit differentiation to find dy/dx.
= x2 + y2
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A salesperson gets a commission of $800 for the first $10,000 of sales, and then $400 for each additional $10,000 or fraction of $10,000 of sales. Let 
represent the commission on x dollars of sales. Find the value of 
A. $3800 B. $4600 C. $4200 D. $4400
Mathematics
Find the slope and the y-intercept of the given line.y = -4x + 7
A. -4, (0, -7) B. 7, (0, -4) C. -7, (0, -4) D. -4, (0, 7)
Mathematics
Evaluate the polynomial.2x5 + 4x4 + 5x3 - x2 for x = -2
A. -49 B. -48 C. -44 D. -15
Mathematics