Simplify the algebraic expression.8.2a + 9.9b - 1.3a - 2.3b
A. 6.9a + 7.6b
B. -6.9a + 7.6b
C. 9.5a + 12.2b
D. 6.9a + 12.2b
Answer: A
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Find the limit, if it exists.
A. 
B. 0
C. 
D. Does not exist
A graph of y = f(x) follows. No formula for f is given. Graph the given equation.y = 2f(x)
?
A. 
B. 
C. 
D. 
Write out the terms of the series.
A. 21 + 147 + 1029 + 7203 + 50,421 B. 63 + 189 + 567 + 1701 + 5103 C. 21 + 63 + 189 + 567 + 1701 D. 21 + 441 + 9261 + 194,481 + 4,084,101
Solve the problem.In the formula L = L0
, L0 is the length of an object in a spaceship moving at velocity v and c is the velocity of light. (a) A spaceship is moving away from Earth at a velocity of v = 0.70c. What is the length of a meter stick in the spaceship as it appears to an observer on Earth? Round your answer to the nearest tenth of a meter if necessary. (b) Find 
L.
A. (a) 0.8 m, (b) does not exist B. (a) 0.2 m, (b) 1 C. (a) 0.5 m, (b) -1 D. (a) 0.7 m, (b) 0