Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 
A. 
B. a + b
C. 
D. b - a
Answer: D
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Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 2 cos ?
A. x2 + (y + 1)2 = 1; circle, radius 1,
center at (0, -1) in rectangular
coordinates
B. x2 + (y - 1)2 = 1; circle, radius 1,
center at (0, 1) in rectangular
coordinates
C. (x + 1)2 + y2 = 1; circle, radius 1,
center at (-1, 0) in rectangular
coordinates
D. (x - 1)2 + y2 = 1; circle, radius 1,
center at (1, 0) in rectangular
coordinates
Write the set by listing its elements.{a|a is an even integer greater than 4}
A. {6, 8, 10, . . .} B. {4, 6, 8, 10, . . .} C. {-2, 0, 2, . . .} D. {5, 6, 7, . . .}
Solve the problem.If a projectile is fired at an angle ? and initial velocity v, then the horizontal distance traveled by the projectile is given by 
Express D as a function of 2?.
A. D = 
v2 cos 2?
B. D = 
v2 sin 2?
C. D = 
v2 sin 2?
D. D = 
v2 sin 2?
Find the distance around the figure below by using the appropriate formula. Round your answer to two decimal places.
?
?
Where 
?
__________in.
Fill in the blank(s) with the appropriate word(s).