Solve the problem.Find the symmetric equations of the line through (3, 2, 1) and perpendicular to the plane x + 2y - 2z = 2.
A. 
= 
= 
B. 
= 
= 
C. 
= 
= 
D. 
= 
= 
Answer: C
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Solve the problem.The height of a baseball (in feet) at time t (in seconds) is given by y = -16x2 + 80x + 5. Which one of the following points is not on the graph of the equation?
A. (4, 69) B. (1, 69) C. (2, 117) D. (3, 101)
Solve.The power that a resistor must dissipate is jointly proportional to the square of the current flowing through the resistor and the resistance of the resistor. If a resistor needs to dissipate 
of power when 
of current are flowing through the resistor whose resistance is 
find the power that a resistor needs to dissipate when 
of current are
flowing through a resistor whose resistance is 
A. 14 watts
B. 98 watts
C. 126 watts
D. 28 watts
Perform the indicated operation. Write your result in scientific notation.(3.8 × 10-7)(1.8 × 10-9)
A. 6.84 × 10-16 B. 5.6 × 1016 C. 6.84 × 1016 D. 6.84 × 10-2
Find 
if 
.
?
?
A. 
B. 
C. 
D. 
E. none of these