16) For the function y = -5x2 - 10x + c, the vertex is (-1,8). What is c? A) -13
B) -3
C) 3
D) 1.

Find two rational expressions that have the difference of 2-n/n-4

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice