Express the area of the rectangle shown below as a trinomial
1 answer:
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Answer:
I don't see this in any of your choices.
Please be sure the problem and choices are as you want them to be seen by others. Thanks kindly.
I do hope my answer is helpful.
Step-by-step explanation:
We want to get the term that contains by itself.
This means we want to get by itself first.
To do this I need to get rid of the plus on that side.
I will do the inverse operation of that; I will subtract 3x on both sides.
-3x -3x
since addition is commutative.
Now we have the 5y term by itself. We want the factor y in 5y by itself.
To undo multiplication you must divide. We will divide both sides by 5:
------------------------------
5
Answer:
x = 8
Step-by-step explanation:
The triangle is isosceles with legs congruent, both x
Using Pythagoras identity in the right triangle
x² + x² = 16²
2x² = 256 ( divide both sides by 2 )
x² = 128 ( take the square root of both sides )
x = =
=
×
= 8