Find the ordered pair for the vertex.f(x) = x2 - 1
A. (0, 1)
B. (-1, 0)
C. (1, 0)
D. (0, -1)
Answer: D
Mathematics
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Solve using Cramer's rule. 5a+ 5c = 70-4a + 3b - 5c = -41-7a - 8b= -112
A. (8, 7, 6) B. (8, -7, -6) C. (9, 5, 6) D. (7, 6, 7)
Mathematics
Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 6m - 7
D. 
Mathematics
Solve the problem.In Little League, Andrew hit 7 home runs in 35 at bats. What percent of the at bats were home runs?
A. 20% B. 30% C. 25% D. 18%
Mathematics
Solve the problem.Sara invested $8300 in two stocks paying 
and 
annual interest, respectively. At the end of the year, the total interest from these investments was $671. How much was invested at each rate?
A. $5300 at 10% and $3000 at 7% B. $4150 at 10% and $4150 at 7% C. $8300 at 10% and $0 at 7% D. $3000 at 10% and $5300 at 7%
Mathematics