The first sentence → x - 2y = -1
the second one → 3x - 2y = -3
multiply the first one by -1
you can get → -x + 2y = 1
plus two sentences together
you can get → 2x = -2
so you are able to know that x = -1
and y = 0
Answer:
Step-by-step explanation: sorry I don't give answers to you but I not love you why you are a baby
Answer:
Third graph from the top
Step-by-step explanation:
Formula for g(x) is g(x) = 3 · x∧2
When we replace x=5 in the formula we get:
g(5) = 3 · 5∧2 = 3 · 25 = 75
God with you!!!
Answer:
EASY the awnser is about 15
Answer: mean=87, median=87.5 and range=18
Step-by-step explanation:
Mean:
First add all the numbers
78+95+77+92+87+79+94+86+88+94 = 870
Then you divide the answer by counting the numbers
870÷10
=87
Median:
First arrange the numbers in ascending order (from smallest to largest)
77, 78, 79, 86, 87, 88, 92, 94, 94, 95
pick the two middle numbers which is 87 and 88
then you do 
= 175÷2
= 87.5
range = Largest number - smallest number
= 95-77
= 18