Solve.A number minus 20 times its reciprocal is 1. Find the number.
A. 5 or 4
B. 5 or -4
C. 5
D. -5 or 4
Answer: B
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Solve the problem.A company makes a very durable product. It sells 20,000 in the first year, but will have diminishing sales due to the product's durability, so that each year it can expect to sell only seventy-five percent of the quantity it will have sold the year before. How many of the product can the company expect to eventually sell?
A. 26,667 B. 40,000 C. 35,000 D. 80,000
At the given point, find the slope of the curve or the line that is tangent to the curve, as requested.x3y3 = 8, slope at (2, 1)
A. 2
B. - 
C. 4
D. - 
Find the range of the quadratic function.f(x) = x2 + 5
A. [-5, ?) B. [0, ?) C. [5, ?) D. (-?, 5]
Solve the inequality. Express your answer using interval notation.8x - 2 ? 7x + 5
A. (-?, 7)
B. [3, ?)
C. (-?, 7]
D. [7, ?)