The answer would be 14 because 14+4 equals 18
Answer:
Step-by-step explanation:
Given is a statement that e is a positive number
This can also be written as:
(a) All positive numbers have positive square root.
(b) For every positive number e, there is a square root for e
(c) For every positive number, there is a positive number r such that 
Answer:
y=-3
Step-by-step explanation:
5x+7y=-31
(-) 5x-9y+17
-----------------
16y=-48
------------
16 16
y=-3
You could first solve for y, assuming x is 0, and y = 6. Then solve for x, and that means y = 4.
So there are two triangles here: Smaller one (ADE) and bigger one (ABC) and they both are similar.
So you can use proportions here.
AB / AC = AD / AE
AB = AD + DB = 6 + 1 = 7
AC = AE + 3
AD = 6
So plug in these values:
AB / AC = AD / AE becomes
7 / (AE + 3) = 6 / AE
Now do the cross multiply:
7 AE = 6 (AE + 3)
Now solve for AE:
7AE = 6AE + 18
AE = 18