Factor completely. If the polynomial is prime, say so.25m2 - 40m + 7
A. (5m + 7)(5m - 1)
B. (5m - 7)(5m + 1)
C. (5m - 1)(5m - 7)
D. (5m - 7)(5m - 1)
Answer: D
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Translate the equation into a sentence by using the phrase "varies directly" or "varies inversely". x = k
A. x varies inversely as the square root of t. B. x varies directly as the square of t. C. t varies directly as the square root of x. D. x varies directly as the square root of t.
Solve.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = 
, where t is measured in seconds. If an object falls 44.1 meters before it hits the ground, find the time it took for the object to fall.
A. 3 seconds B. 9 seconds C. 4 seconds D. 6 seconds
Ohm's Law for the current I in a circuit with voltage E, resistance R, capacitance reactance XC, and inductive reactance XLis 
Use this law to solve the problem.Find R if 
and 
A.
| 1 + i |
B.
+ 
iC.
 + i |
D.
1 +  i |
Solve.An investment is worth $2555 in 1994. By 1999 it has grown to $4600. Let y be the value of the investment in the year x, where x = 0 represents 1994. Write a linear equation that relates the value of the investment, y, to the year x.
A. y = -409x + 6645
B. y = -409x + 2555
C. y = 409x + 2555
D. y = 
x + 2555