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Mekhanik [1.2K]
2 years ago
9

Find the sum of these polynomials.

Mathematics
2 answers:
Crank2 years ago
8 0

Answer:

C. 10x²-x+13

Step-by-step explanation:

1. Add the numbers

x^2 - x + 7 + 9x^2 + 6

x^2 - x + 13 + 9x^2

2. Combine like terms

x^2 - x + 13 + 9x^2

10x^2 - x + 13

Genrish500 [490]2 years ago
7 0

Answer:

C

Step-by-step explanation:

add the two x^2 parts    =  10 x^2

 so answer is B or C

  add the constants   7 + 6 = 13     so answer C

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The model below represents an equation. which value of X makes the equation true?<br>​
jeka94

Answer:

The answer to your question is x = 2

Step-by-step explanation:

To solve this problem just count the number of x and the number of numbers ONE on each side of the equation.

- There are three "x"

- There are 4 number one on the left side equation

- There are 10 number one one the right side of the equation

Equation

                   3x + 4 = 10

Solve for x

                   3x = 10 - 4

                   3x = 6

                     x = 6/3

                    x = 2

8 0
3 years ago
Read 2 more answers
Find value of x for 7(3x+4)+2=156
mr_godi [17]
21x + 28 = 156 - 2
21x = 154 - 28
21x/21 = 126/21
X = 6
4 0
3 years ago
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Find the lcm, of x, 2x, 3x
zysi [14]

Since x, 2x, 3x contain numbers and variables, it takes two steps to find the LCM. Find the LCM for the numerical part 1; 2; 3; then find the LCM for the variable part x¹ ; x¹; x¹.

The LCM is the smallest number by which all numbers are divided without leaving a remainder.

  1. List the prime factors of each number.
  2. Multiply each factor the greatest number of times that occurs in any of the numbers.

The number 1 is not a prime number because it only has one positive factor, which is itself.

not cousin.

Since 2 has no divisors other than 1 and 2.

2 is a prime number.

Since 3 has no divisors other than 1 and 3.

3 is a prime number.

The least common multiple LCM of 1,2,3 is the result of multiplying all the prime factors the greatest number of times that appear in each term.

2 × 3

Multiply 2 by 3.

6

The factor for x¹ is x itself.

x¹ = x

The Least Common Multiple LCM of x¹ ; x¹; x¹ is the result of multiplying all the prime factors the greatest number of times that appear in each term.

x

The LCM for x;2x;3x is the numerical part 6 multiplied by the variable part.

6x ====> Answer

4 0
2 years ago
Describe the main parts of a proof.<br><br> (There's no answer choices)
sertanlavr [38]
The main parts of a proof are the statements and the reasons. The statements are things you want to prove, and the reasons are the justifications for the statements. Some parts of a proof will provide a given statement or a visual with some congruency.

I hope this helps!
~kaikers
4 0
3 years ago
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If y = 5x − 4, which of the following sets represents possible inputs and outputs of the function, represented as ordered pairs?
Mama L [17]

Answer:

x can be any value, x will be the input, y will be the output.

Step-by-step explanation:

If x = 3, If x = 6, If x = 9,

y = 5x - 4

y = 5 (3, 6, or 9) - 4

y = 11, y = 26, y = 41.

These are all possible sets of ordered pairs, but ANY Real number can be represented as X, and it will need to be in an order. These numbers are all positive, so in this case, you just have to draw out Quadrant 1 in a Coor. Plane.

<u>X (Input)  I  Y (Output)</u>

3              I  11

6              I  26

9              I  41

See, when x increases by 3, Y increases by 15. If you go on, it will be the same path, same pattern.

Hope This Helps! :)

8 0
3 years ago
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