Factor completely, if possible.x2 - 18xy + 81y2
A. (x + 9y)2
B. (x - 9y)(x + 9y)
C. Prime
D. (x - 9y)2
Answer: D
You might also like to view...
Write an expression for the area of the shaded region; then factor completely.
A. h(4h + 1) B. h(h - 4) C. h(h + 8) D. 8h(h + 1)
Provide an appropriate response.A line passes through the points (1, 10) and (4, 10). The equation of this line is ? . The slope of the line is ? .
A. x = 10; 0 B. x = 10; undefined C. y = 10; 0 D. y = 10; undefined
The population of the world was about 5.3 billion in 1990. Birth rates in the 1990s range from 35 to 40 million per year and death rates range from 15 to 20 million per year. Let's assume that the carrying capacity for world population is 100 billion. Use the logistic model to predict the world population in the 2,450 year. Calculate your answer in billions to one decimal place. (Because the initial population is small compared to the carrying capacity, you can take k to be an estimate of the initial relative growth rate.)
a. 78.3 billion b. 27.0 billion c. 17.1 billion d. 59.2 billion e. 32.9 billion
Factor out the GCF from the polynomial.44p + 11q - 11
A. 11p(4 + q - 1) B. 11(4p + q - 1) C. No common factors D. 11(4p + q)