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S_A_V [24]
4 years ago
13

What is the sum of the polynomials? 11x^2-5 + x+4

Mathematics
2 answers:
Nataly_w [17]4 years ago
8 0

Answer:

11x^2+x-1

Step-by-step explanation:

liraira [26]4 years ago
5 0

Answer:

11x^{2}+x-1

Step-by-step explanation:

we have

(11x^{2} -5) +(x+4)

we know that

The sum of a quadratic equation and a linear equation will be a quadratic equation

so

Combine like terms

(11x^{2})+(x)+(-5+4)

11x^{2}+x-1

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6 0
4 years ago
5x + 2y = 12<br><br> 5x – 2y = 28<br> Solve by substitution
andrey2020 [161]

Answer:

Divide each term by  

5

and simplify.

Tap for more steps...

x

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+

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5

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x

=

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−

3

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Replace all occurrences of  

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=

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−

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with  

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5

+

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5

.

x

=

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y

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+

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4

(

2

y

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+

12

5

)

=

28

−

3

y

Simplify  

4

(

2

y

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+

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5

)

.

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x

=

2

y

5

+

12

5

8

y

5

+

48

5

=

28

−

3

y

Move all terms in  

8

y

5

+

48

5

=

28

−

3

y

to the left side and simplify.

Tap for more steps...

x

=

2

y

5

+

12

5

23

(

y

−

4

)

5

=

0

Solve for  

y

in the second equation.

Tap for more steps...

x

=

2

y

5

+

12

5

y

=

4

Replace all occurrences of  

y

in  

x

=

2

y

5

+

12

5

with  

4

.

x

=

2

(

4

)

5

+

12

5

y

=

4

Simplify  

2

(

4

)

5

+

12

5

.

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x

=

4

y

=

4

The solution to the system of equations can be represented as a point.

(

4

,

4

)

The result can be shown in multiple forms.

Point Form:

(

4

,

4

)

Equation Form:

x

=

4

,

y

=

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Step-by-step explanation:

7 0
3 years ago
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Free_Kalibri [48]
<h3>Answer:</h3>

after watching a two minute video on how to tell if a relation is a function, I can confidently tell you that the answers are 2, 3, & 4.

<h3>step-by-step explanation</h3><h3></h3>

answers 3 & 4 are the x and y coordinates of the points.

this relation is not a function because it does not pass the vertical line test.

( the vertical line test is where you look at all the vertical lines on the page and check if any of them have multiple dots on them. in this case, the line at x coordinate 1 has dots on both (1, 1) and (1, -1) )

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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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