Solve the problem.y varies directly as z and y = 221 when z = 13. Find y when z = 19.
A. 361
B. 289
C. 323
D. 169
Answer: C
Mathematics
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Given the graph of f, find any values of x at which f ' is not defined.
A. x = 1 B. x = -1 C. x = 0 D. x = 2
Mathematics
Solve the problem.How many relay teams of 4 members can be chosen from a 6 member team to run in a relay race?
A. 18 B. 360 C. 24 D. 120
Mathematics
Find the vertex of the parabola.
?
?
A. (9, 0) B. (3, 0) C. (3, -3) D. (0, 3) E. (-3, 0)
Mathematics
Express the radical in simplified form. Assume that all variables represent positive real numbers.
A. 16a
B. 2
C. 2a2
D. 2a
Mathematics