To show: (x+y)² − (x −y)² = 4xy
Using difference of square identity:
Taking left side
hence proved
Answer:
1 7/10 is your answer.
Step-by-step explanation:
What you have to do is find the GCF.
10 goes into both 5 and 10
<em>8/10 + 9/10 = </em>
<em>17/10 =</em>
1 7/10 is your answer.
Answer:
8x + 6 = 3
Step-by-step explanation if solving for x
Simplifying
8x + 6 = 3
Reorder the terms:
6 + 8x = 3
Solving
6 + 8x = 3
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-6' to each side of the equation.
6 + -6 + 8x = 3 + -6
Combine like terms: 6 + -6 = 0
0 + 8x = 3 + -6
8x = 3 + -6
Combine like terms: 3 + -6 = -3
8x = -3
Divide each side by '8'.
x = -0.375
Simplifying
x = -0.375
4 red marbles
6 blue marbles
8 green marbles
Add:
4 + 6 = 10
10 + 8 = 18
18 total marbles
Green marbles/total marbles
8/18
Simplify:
8 ÷ 2 = 4
18 ÷ 2 = 9
Simplest form = 4/9
8/18 = 4/9
D. 4/9
Answer:
18
Step-by-step explanation:
make 11 1/4 into improper fraction > 45/4
multiply by 2 so it has same denominator > 90/8
90/8 divided by 5/8 = 18
