Simplify the expression using the quotients-to-powers rule.
2
A. 
B. 
C. 
D. 
Answer: B
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Determine the value of the logarithm. Round to the nearest hundredth.log 3 0.87
A. -0.13 B. -1.24 C. -7.89 D. -0.15
Match the system of equations with one of the graphs.x2 - y2 = 4x - 2 = 6y
A. 
B. 
C. 
D. 
Divide using long division.
A. x2 + 15 B. x2 + 10 C. x + 15 D. x + 10
If positive electric charges of Q and q coulombs are situated at positions 
and 
, respectively, then the force of repulsion they experience is given by
?
?
where 
, F is given in newtons, and all positions are measured in meters. Assume that a charge of 6 coulombs is situated at the origin and that a second charge of 12 coulombs is situated 
and moving in the y direction at 1.5 meters per second. How fast is the electrostatic force it experiences decreasing?
?
Round your answer to the nearest trillion.
?
A. 
B. 
C. 
D. 
E. 