Simplify.
÷ 
÷ 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the system by graphing. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-4, 2)} B. {(-2, 4)} C. no solution; ? D. {(2, -4)}
Mathematics
Find the real solutions, if any, of the equation. Use the quadratic formula.2x2 - x + 4 = 0
A. {
, 
}
B. {
, 
}
C. {
, 
}
D. no real solution
Mathematics
Solve the problem.Let f(x) compute the cost of a rental car after x days of use at $22 per day. What is the interpretation of the solution of 
A. The number of days rented for $154 B. The cost of rental for 22 days C. The number of days rented for $22 D. The cost of rental for 154 days
Mathematics
Complete the identity.cos (tan-1 v) = ?
A. 
B. v
C. 
D. 
Mathematics