Determine the vertex of the graph of the parabola.y = - x2 - 4x - 4
A. (0, 2)
B. (2, 0)
C. (-2, 0)
D. (0, -2)
Answer: C
Mathematics
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Solve the problem.If the cost, C(x), for manufacturing x units of a certain product is given by 
, find the number of units manufactured at a cost of $10,500.
A. 50 units B. 100 units C. 90 units D. 60 units
Mathematics
Write the fraction in lowest terms.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.In a large city, 0.413 of the budget went toward city workers' salaries. Write this decimal as a percent.
A. 0.413% B. 41.3% C. 413% D. 0.0413%
Mathematics
Write the expression as one logarithm.log10 2 - log10 a
A. log10 2 - a
B. log10 
C. log20 
D. log10 
Mathematics