Answer:
We need to add the expression: 
Step-by-step explanation:
As the first step, add the first two polynomials listed in order to find what their sum is. Do such by combining like terms:
now, you need to find another polynomial (let's call it P(x)) such that added to the one we just found above, will render 
as a result.
Putting this phrase in mathematical terms, we write:
Now we solve for this unknown P(x) in this equation, by subtracting each of the terms that are accompanying it on the left side of the equation. We do one at a time for clarity:
Therefore, the expression we need to add is:
Two hundred and 5, point zero nine or 0 9
Answer:
16
Step-by-step explanation:
To solve this equation, we need the formula for perfect squares:
or
<em>this is the formula we will use because the signs match the one in the question</em>.
Knowing these, we can set up an equation that assumes that the answer we will end up with is a perfect square.
Work:
- this is the setup for being able to solve for the unknown
, now we need to solve for .
(I replaced 
with 
because I'm setting up this question to be a perfect square).
- multiply the left side. Remember that your answer will not be
, but 
.
- Divide like terms and isolate the variable. In this case,
and 
are on both sides, so dive them and they will be canceled out.
- divide by
and you will have your value for .
- Now we plug into our original equation equation for perfect squares.
Our final answer is 16.
Answer:
z/3 = 3/2 so 2z = 9 z = 4.5 cuz triangles are proportional
Answer:
I’m doing i-Ready and my question hasn’t been answered
Step-by-step explanation:
