Solve the system by substitution. If the system is inconsistent and has no solution, state this. If the system is dependent, write the form of the solution for any real number x.y = 6x + 407x + 5y = -59
A. (-7, -2)
B. (7, 2)
C. Dependent, (x, 6x + 40)
D. Inconsistent, ?
Answer: A
Mathematics
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Solve the problem.Find the point on the parabola x = t2, y = t, -? < t < ?, closest to the point 
. (Hint: Minimize the square of the distance as a function of t.)
A. (0, 0)
B. (64, 8)
C. 
D. (16, 4)
Mathematics
Factor by grouping.15a3 + 6a2b - 20ab2 - 8b3
A. (15a2 - 4b2)(a + 2b) B. (3a2 + 4b2)(5a - 2b) C. (3a2 - 4b2)(5a + 2b) D. (3a2 - 4b)(5a + 2b)
Mathematics
Factor.(q - 4)2 - 100
A. (q + 14)(q - 14) B. (q + 6)2 C. ((q - 4)2 + 10)((q - 4)2 - 10) D. (q + 6)(q - 14)
Mathematics
Graph the polar equation.r = 6 - cos ?
A. 
B. 
C. 
D. 
Mathematics