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Anuta_ua [19.1K]
3 years ago
10

PLEASE HELPPPP. 9TH GRADE MATH. I NEED HELP

Mathematics
2 answers:
djyliett [7]3 years ago
6 0

Answer:

D, -8

Step-by-step explanation:

dimaraw [331]3 years ago
3 0

Answer:

-8

Step-by-step explanation:

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7. Which of the following illustrates the commutative property of multiplication?
Zigmanuir [339]
X^2 + 5 = 5 + x^2 will give you the same answer. Also know as the commutative property. Answer is (3)
3 0
3 years ago
Add the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers of x.
CaHeK987 [17]

Answer:

-x^5+3x^4+16x^3+7x^2-3x+6

Step-by-step explanation:

Given polynomials are:

x^5-4x^4+7x^3+8, 9x^3+7x^2-10 and -2x^5+7x^4-3x+8

Now we need to add the given polynomials, then place the answer in the proper location on the grid. Also we need to write answer in descending powers of x.

So let's add them by combining like terms:

x^5-4x^4+7x^3+8+9x^3+7x^2-10-2x^5+7x^4-3x+8

-x^5+3x^4+16x^3+7x^2-3x+6

Hence final answer in descending order is -x^5+3x^4+16x^3+7x^2-3x+6

6 0
3 years ago
When simplified and written in standard form, which quadratic function is equivalent to the polynomial shown?
mars1129 [50]

Answer:

2c^2 - 2c - 3

Step-by-step explanation:

Next time, please share the answer choices.  Thank you.

Group together the 'c' terms in 2 + 7c – 4c2 – 3c + 4:

                                                     2  + 4c and -4c^2 + 4  Then we have:

-4c^2 + 4c + 6

We should reduce this by factoring -2 out of all three terms:

2c^2 - 2c - 3  This is the desired quadratic in standard form.

3 0
3 years ago
Write an equation that represents the line. Use exact numbers
aev [14]

Answer:

y= 2/3x + 1.25

Step-by-step explanation:

I can't see the exact number but it's probably 1.25. Sorry if it's wrong :)

5 0
3 years ago
What is the value of x?<br> (2x-54)<br> (16)°
vagabundo [1.1K]

Answer:

23

Step-by-step explanation:

7 0
3 years ago
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