Answer:
x= 2.5
Step-by-step explanation:
We can use ratios to solve
AB AD
------- = ----------
AC AE
X 5
------- = ----------
x+1 7
Using cross products
7x = 5(x+1)
Distribute
7x = 5x+5
subtract 5x
7x-5x = 5x-5x+5
2x= 5
Divide by 2
2x/2 = 5/2
x = 2.5
(19+7):(2*6+1)=26:(12+1)=26:13=2
Answer:
x2=81 x=9 and x=-9
x2=100 x=10 and x=-10
x=12 nothing you can solve for in this equation. X=12
Step-by-step explanation:
x2=81
Divide 81 by 2 and get x by it self
x2=100
Divide 100 by 2 and get x by it self
Answer:
split it in half then take that half and split it into 3rds
Step-by-step explanation:
Can i pls have brainliest
Answer:
6 * 5 * 4 * 3 * 2 * 1, i.e. 6! or 720. Of course, since both sets have the same number of elements, you can't have one-to-one without being onto, aka a surjection, so “one to one correspondence” is the right term (or bijection—merci, M.
Hope it helps >3!