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larisa [96]
3 years ago
10

PLS HELP I WILL GIVE BRAINLY IF YOUR RIGHT Which expression is equivalent to 4x^2+(5x−7x^2)−4−(3x+5)?

Mathematics
1 answer:
larisa86 [58]3 years ago
6 0

Answer:

The answer is -3x²+2x-9.

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Can anyone please help explain what any of this means and how I could solve this? Many Thanks!
Yanka [14]

Step-by-step explanation:

step 1. this is a polynomial division problem

x^2 + 11x + 52

---------------------------------

step 2. (x -3) [ x^3 + 8x^2 + 19x + 13

step 3. x^3 - 3x^2

step 4. 11x^2 + 19x + 13

step 5. 11x^2 - 33x

step 6. 52x + 13

step 7. 52x - 156

step 8. R -> 169

step 9. Ans: x^2 + 11x + 52 R 169

6 0
3 years ago
Help please :)<br> You can have 15 points if you answer it correctly (if I'm not mistaken)
dusya [7]

Answer:

$466

Step-by-step explanation:

Represent her salary by s.  Then the amount spent on rent is s/2.

After spending 168 on her electric and water bills, she had s/2 - 168 dollars left.  She spent half of this on her phone bill, leaving her with

s/2 - 168

-------------- dollars.  

       2

After buying $57 worth of gas, she had

s/2 - 168

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       2

We must now solve for s.

First, multiply all three terms by 2.  We get

s/2 - 168 - 2(57) = 2(92), or

s/2 - 168 - 114 = 184

Simplifying this, we get s/2 = 168 + 114 + 184, or s/2 = 466.

She spent half her salary (that is, half of s) on rent.  As seen above, this is $466.

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Step-by-step explanation:

\cos(e)  =  \frac{12}{37}  = 0.324

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Step-by-step explanation:

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MrMuchimi

Answer:

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Step-by-step explanation:

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3 years ago
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