Factor the binomial that is a difference of squares. If prime, so state.y2 - 81
A. prime
B. (y + 9)2
C. (y + 9)(y - 9)
D. (y - 9)2
Answer: C
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If the number in the statement is written in scientific notation, write it without exponents. If it is written without exponents, write it in scientific notation.The life span of the average male human being is approximately 37,843,200 minutes.
A. 3.78432 × 106 min B. 3.78432 × 107 min C. 3.78432 × 105 min D. 37.8432 × 106 min
Provide an appropriate response.If the trinomial 
is a perfect square, what can we conclude about the equation ax2 + bx + c = 0?
A. The equation has no real solutions. B. The equation has two rational solutions. C. The equation has one irrational solution. D. The equation has one rational solution.
The game of pool uses 15 balls numbered from 1 to 15 (see the figure below). In the game of rotation, a player attempts to "sink" a ball in a pocket of the table and receives the number of points on the ball. Suppose we consider a game of "super pool", which has 19 consecutively numbered balls on the table. How many points would a player receive to "run the table"?
?
?
A. 19 B. 420 C. 210 D. 190 E. 171
Simplify the expression. If any variables are present, assume that they are positive.
? 
A. 
B. 11x4
C. 
D. x4