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NikAS [45]
2 years ago
10

What is the sum of the polynomials?

Mathematics
1 answer:
vivado [14]2 years ago
4 0

The answer is 3x^2 + 6x + 4 (the second one)

Let's start by removing the parenthesis to get 6x + 7 + x^2 + 2x^2 - 3

Then, let's combine like terms (terms with the same variable and exponent) to get 3x^2 + 6x + 4

This is an answer in the multiple choice, so the answer is 3x^2 + 6x + 4 (the second one)

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tatuchka [14]

Answer:

Speed = 20 m/s

Step-by-step explanation:

The formula to find the speed of a wave is found by

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3 0
3 years ago
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Katia and Thomasina play a computer game and record these scores. Katia: 8, 6, -4, -7, 2, 0, 3 Thomasina: -11, 0, 8, 7, 5, -7, 1
suter [353]

Answer:

Step-by-step explanation:

there is no factorization of y^2 -2y +35 in real numbers

Thomasina correctly determined two factors of 35 that differ by 2, but that is not what is needed here. For this problem, she needs two factors of 35 that have a sum of 2.* (There aren't any real-number factors that meet that condition.)

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The factorization in complex numbers would be ...

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* Technically, she needs two factors of 35 with a sum of -2. Both factors would have to be negative.

8 0
2 years ago
How long will the spring be if a 2 pound weight is hung on it? Will the length double if you double the weight?
mars1129 [50]
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3 years ago
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Write down step by step the process that you use<br> to solve multiplying a fraction by an integer.
Marta_Voda [28]

Answer:

you place the 1 under the integer and follow the steps keep change it flip it . SO basically you keep the integer and the 1 and you change the sign to division and you place the numerator where the denominator is and the  denominator goes where the numerator is.

Step-by-step explanation:

3 0
3 years ago
The parallelogram is reflected across the line y = x. Which of the following are coordinates of a vertex of the image?
Maslowich

Answer:

A''(-5,1) b"(-4,-3) c"(-2,-1) D"(3,1)

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