Write an expression for the perimeter in simplest form.
A. x2 + 9x + 20
B. 4x + 9
C. 2x + 9
D. 4x + 18
Answer: D
Mathematics
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Solve.An electrical circuit has a resistance of 84 ohms and a current of 10 amps. Find the voltage.
A. 94 V B. -840 V C. 840 V D. 843 V
Mathematics
Decide whether the pair of lines is parallel, perpendicular, or neither.9x + 3y = 1215x + 5y = 23
A. parallel B. perpendicular C. neither
Mathematics
Use Cramer's Rule to solve (if possible) the system of equations.
?
?
?
A. (0, 2, -4) B. (0, -2, 4) C. (0, -2, -4) D. (0, 2, 0) E. (0, 2, 4)
Mathematics
Graph the solution of the system of linear inequalities.
A. 
B. 
C. 
D. 
Mathematics