Solve the problem.A water tank can be filled in 5 min and emptied in 10 min. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. 10 min
B. 3
min
C. 
min
D. 
min
Answer: A
Mathematics
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Simplify, if possible, by combining like terms.-5a + 7a + 6a
A. 2a2 + 6a B. 2a + 6 C. 8a3 D. 8a
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation and simplify.
? 
A. 
B. 1
C. x - y
D. x2 - y
Mathematics
Use the graph or table to determine a solution of the equation. Use synthetic division to verify that this number is a solution of the equation. Then solve the polynomial equation.x3 + 9x2 + 26x + 24 = 0
A. -2; The remainder is zero; -2, 3, and -4, or {-4, -2, 3} B. -2; The remainder is zero; 2, -3, and -4, or {-4, -3, 2} C. -2; The remainder is zero; -2, -3, and 4, or {-3, -2, 4} D. -2; The remainder is zero; -2, -3, and -4, or {-4, -3, -2}
Mathematics