a.
a^2 + b^2 = c^2
The legs are a and b. c is the hypotenuse.
Let a = 6x + 9y; b = 8x + 12y; c = 10x + 15y
The equation is:
(6x + 9y)^2 + (8x + 12y)^2 = (10x + 15y)^2
b.
Now we square each binomial and combine like terms on each side.
36x^2 + 108xy + 81y^2 + 64x^2 + 192 xy + 144y = 100x^2 + 300xy + 225y^2
36x^2 + 64x^2 + 108xy + 192xy + 81y^2 + 144y^2 = 100x^2 + 300xy + 225y^2
100x^2 + 300xy + 225y^2 = 100x^2 + 300xy + 225y^2
The two sides are equal, so it is an identity.
Answer:
16×16=256
20×20=400
multiply the number with its self and that's the square inches of each pizza.
Each sweater is $35
B/c in total it was $160
And we know that the skirt is $20
So we do 160-20 which is equal to 140
There are 4 sweaters so 140 divided by 4 which is
$35. !!!! Yayayayay
Answer:
7 X 9 = 63
Step-by-step explanation:
Basically if 7 friends each spent $9 each you can times it to get the answer like 7x9 = 63 because each friend spent 9 each and there is seven so there for all together its 63
Answer: Hence, Option (6) and (8) are correct as their value is also "-8".
Step-by-step explanation:
Since we have given that

First we need to solve to get the value of 'x' :

Therefore, x=-8
Now, we will check all the options :
1) 4x+8=24

2) 9x+18=-24

3) 4x+12=-24

4) 18x+36/2=-24

5) 4x=-36

6) 4x=-32

7) x=-9
8) x=-8
Hence, Option (6) and (8) are correct as their value is also "-8".