Find the vertex.f(x) = 3x2 + 12x + 13
A. (2, -1)
B. (-1, 2)
C. (-2, 1)
D. (1, -2)
Answer: C
Mathematics
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Solve the problem using matrices.Jerry has three pieces of string. The total length is 107 cm. The sum of the two longer pieces is 89 cm. The middle piece is twice as long as the shortest piece. What are the lengths of the three pieces?
A. 18 cm; 36 cm; 53 cm B. 9 cm; 18 cm; 80 cm C. No solution D. 18 cm; 53 cm; 63 cm
Mathematics
Use multiplication to simplify the side of the equation with the variable. Then solve the equation.4(4w) = 
A. w = 16
B. w = 
C. w = 3
D. w = 
Mathematics
Find the absolute value.
A. 
B. 0
C. 
D. - 
Mathematics
Simplify the expression.
? 
A. 5
B. 25
C. 5
D. 
Mathematics