Answer:
the answer is A
Step-by-step explanation:
10C6 = 10! / (6! * 4!) = 10 * 9 * 8 * 7 / 4! = 5040/24 = 210
5x + 9x + 26 = 180
14x = 180 - 26
14x = 154
x = 154 / 14
x = 11
answer
B. 11
Answer: a) -13/16
Step-by-step explanation: Start by setting equations equal and rearrange X^3 - x^2 + 1 = 0. Visual inspection of graph shows x between -1 and -1/2. Start with x = 3/4 plug in and calculate: just a little too small. Try going halfway towards -1: x =-7/8 Plug in and the answer is very far from 0. Go halfway back towards -3/4: -13/16 and the equality is very close.
M = 9
(check photo, for the work.. click on the picture for all of the work:) )
