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kaheart [24]
3 years ago
14

Which expression is equivalent to 23+ (15+22) by the associative property of addition?

Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

i think the answer is C

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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

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3 years ago
I NEED HELP ASAP IN ON TIMER!!!!
Rina8888 [55]

Answer:

A: square the binomial (x + 3), distribute the negative to the binomial (x2 + 9), simplify the dividend, and then divide

Step-by-step explanation:

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8 0
3 years ago
Simplify this expression: 1/2(10x + 12) - (3.5x - 7) *
Anna71 [15]

Simplified Expression:

1.5x+13

7 0
3 years ago
Can someone please help me I’m having a rough day
Shkiper50 [21]

Answer:

The answer is A

Step-by-step explanation:

Hope your day gets better :) Brainliest??

7 0
3 years ago
Name two points that are reflections of each other across the y-axis.
zheka24 [161]

Answer:

(1,1), (-1,1)

Step-by-step explanation:

To reflect a point over the x-axis, simply make its x-value negative. So, we can take the sample point of (1,1), make its x-value negative, and get (-1,1).

5 0
3 years ago
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