Solve the problem.A force of 
will stretch a rubber band 
. Assuming Hooke's law applies, how much work is done on the rubber band by a 
force?
A. 0.135 J
B. 0.015 J
C. 1350 J
D. 0.045 J
Answer: A
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Factor when possible.a2 - 11ab + 24b2
A. (a + 3b)(a - 8b) B. (a - 3b)(a - 8b) C. (a + 3b)(a + b) D. Prime
Solve the problem.The polar equation of the path of a moon of a planet is 
, where r is measured in miles. Find the rectangular equation of the path of this moon. The path is an ellipse, with the planet at one of the foci.
A. 
3 = 
2
B. x2 + y2 = 
2
C. 
2 = 
3
D. x2 + y2 = (3800 - 0.21x)2
The abacus in the figure has "five" playing the role of "ten." (a) What number is represented on this five-bead abacus? (b) How would this number naturally be recorded?
A. (a) 23, (b) 43 B. (a) 115, (b) 430 C. (a) 19, (b) 34 D. (a) 55, (b) 110
Solve the equation.
- x = 6
A. x = -7 B. x = -7, -3 C. x = -3 D. No solution