Evaluate the expression using the given values.3x - 9y2; x = 3, y = -4.
A. 153
B. -63
C. -27
D. -135
Answer: D
Mathematics
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Simplify the given expression.26
A. 12 B. 64 C. 26 D. 5
Mathematics
Solve the problems.In one game, a baseball pitcher throws 80% of his pitches for strikes. If the pitcher throws 32 strikes in the game, then how many pitches did he throw?
A. 32 B. 80 C. 20 D. 40
Mathematics
Find the equation of the axis of symmetry of the parabola.y = 3x2 - 12x + 7
A. x = 2 B. x = -5 C. x = 5 D. x = -2
Mathematics
Write the augmented matrix for the system. 8x - 2z = 38 -2y + 5z = 7 6x + 7y + 8z = 31
A. 
B. 
C. 
D. 
Mathematics