Write an equation that models the conditions, then to solve the equation.25% of 4 is what number?
A. 10
B. 1
C. 16
D. 1.6
Answer: B
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Solve equation by using the quadratic formula.3x2 - 4x = 7
A. x = 
, 1
B. x = 
, -1
C. x = 
, -1
D. x = 
, 0
Solve the problem.One hundred rats are being trained to run through a maze and are rewarded when they run through it correctly. Once a rat successfully runs the maze, it continues to run the maze correctly in all subsequent trials. The number of rats that run the maze incorrectly after t attempts is given approximately by 
Find the number of trials required such that only 45% of the rats are running the maze incorrectly. Round to the nearest trial.
A. 6 trials B. 23 trials C. 5 trials D. 27 trials
Factor, using the given factor. Assume all variables represent positive real numbers.4k-2 + k-4; k-4
A. k-4(4k-2 + 1) B. k-4(4k2 + 1) C. k-4(4k3 + 1) D. 4 k-4(k2 + 1)
Find the integral.
A. 
(6x - 7)3/2 + C
B. 
(6x - 7)3/2 + C
C. 
(6x - 7)3/2 + C
D. 
(6x - 7)3/2 + C