Answer:
Step-by-step explanation:
To compute x times y must use foil on the right hand side.
First:
Outer:
Inner:
Last:
------------------------------------Add like terms:
----------------
Multiply top and bottom by bottom's conjugate:
Foil the top and just do first and last of Foil for the bottom since the bottom contains multiplying conjugates:
Replace with -1:
10x + 19.95 = 139.95
Subtract 19.95 from both sides
10x =130.00
Divide both sides by 10
X = 13
13 classes
Answer:
10
Step-by-step explanation:
let the lengths of sides=x (each)
x²+x²=(10√2)²
2x²=100×2
x²=100
x=√100=10
Answer:
b (-3,3)
Step-by-step explanation:
it's where the two lines intersect
hope this helps
Answer:
5 2/5
Step-by-step explanation:
(2 1/4) / x = (1 1/2) / (3 3/5)
so
x = (2 1/4) * (3 3/5) / (1 1/2)