Solve the system by graphing. If there is no solution or infinitely many solutions, so state.8x + y = 218x + y = 69
A. Infinitely many solutions
B. (19, -131)
C. (16, 5)
D. No solution
Answer: D
Mathematics
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Factor completely.21t3 - 91t2 - 70t
A. 7(t + 5)(3t - 2) B. t(3t + 2)(7t - 35) C. (t2 - 5)(21t + 14) D. 7t(t - 5)(3t + 2)
Mathematics
Find the sum, if it exists.
A. 1452 B. 93 C. 2460 D. Does not exist
Mathematics
Use a system of linear equations to solve the problem.A flat rectangular piece of aluminum has a perimeter of 60 inches. The length is 14 inches longer than the width. Find the width.
A. 36 in. B. 30 in. C. 22 in. D. 8 in.
Mathematics
Evaluate the expression.r = 
, v = 
, w = 
r + v
A. 
B. 
C. 
D. 
Mathematics