Solve.If the average cost per unit C(x) to produce x units of plywood is given by 
what is the cost per unit if 20 units of plywood are produced?
A. $1.50
B. $75.00
C. $21.43
D. $25.00
Answer: C
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Solve the problem.The spread of a cold virus can be modeled using logistic equations. The key assumption is that at any given time, a fraction y of the population, where 0 ? y ? 1, has the virus, while the remaining fraction src="https://sciemce.com/media/4/ppg__wesa0610191635__f1q17g3.jpg" alt="" style="vertical-align: -4.0px;" /> and solve the initial value problem where the number of people who initially have the cold virus is 
does not. Furthermore, the cold virus spreads by interactions between those who have it and those who do not. The number of such interactions is proportional to y(1 - y). Therefore, the equation that describes the spread of the virus is 
where k is a positive real number. Assume 
A. y = 
B. y = 
C. y = 
D. y = 
Estimate the square root of the following number, n, by finding a natural number a such that a < 
< a + 1.182
A. 14 B. 13 C. 196 D. 169
Solve the equation. Check your solution.
= 8
A. 
B. 
C. 
D. 
Simplify the polynomial by adding or subtracting, as indicated. Express your answer as a single polynomial in standard form.(10x5y3 + 6x3y2 + 9xy) + (11x5y3 + 4x3y + 8xy)
A. 21x5y3 + 10x3y + 17xy B. 21x5y3 + 6x3y2 + 4x3y + 17xy C. 10x6y3 + 21x5y3 + 17xy D. 21x5y3 + 10x3y2 + 17xy