Find equivalent expressions that have the LCD.
, 
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Answer: B
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Multiply and simplify. Assume variables do not cause any denominators to equal 0.
? - 
A. 
B. - 
C. - 
D. - 6
Divide.
A. 125,000 B. 12,500 C. 12,501 D. 1250
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 606 with r = 0.8. Write a recursive sequence that describes this data, where an denotes the insect density during year n.Find the terms a1 , a2 , a3 , ...., a5 . Round to two decimal places, if necessary.
A. a1 = 606, a2 = 606, a3 = 606, a4 = 606, a5 = 606 B. a1 = 484.80, a2 = 387.84, a3 = 310.27, a4 = 248.22, a5 = 198.57 C. a1 = 606 , a2 = 484.80, a3 = 387.84, a4 = 310.27, a5 = 248.22 D. a1 = 606, a2 = 1090.80, a3 = 1963.44, a4 = 3534.19, a5 = 6361.55
Find the center and the radius of the circle.x2 + (y + 1)2 = 
A. (0, -1), r = 
B. (0, 1), r = 
C. (0, 1), r = 
D. (0, -1), r = 