You have ti distribute the 5n into the brackets.
so then youll have 15n^2 + 40n.
Answer: A. X= -5, Y= 3, Z= 4
Step-by-step explanation:
Answer:
D. 13.79
Step-by-step explanation:
74.6-50.25-10.56=13.79
The mean is not the same thing as median
mean=78+81+85+87=331
mean=331/4=82.75
median is the middle number, but you have a par set of numbers, so your median will be the middle numbers 78,81,85,87 , which are 81+85=166, 166/2=83
83 is your median
Answer:
3/2
Step-by-step explanation:
Slope 1 = (-1+7)/(-5-4) = 6/(-9) = -2/3
Slope 2 perpendicular to Slope 1 :
-1 ÷ -⅔ = 3/2
