Find the sum Adding and Subtracting Polynomials (2n2−5n−6)+(−n2−3n+11)=

Answers

Answer 1
collect like terms
2n2 i’m gonna assume is 2n^2
and n2 is 2n
2n^2-10n+5
Answer 2
EXPLANATION :-

[tex] = (2 {n}^{2} - 5n - 6) + ( - {n}^{2} - 3n + 11)[/tex]

[tex] = 2 {n}^{2} - 5n - 6 - {n}^{2} - 3n + 11[/tex]

[tex] = 2 {n}^{2} - {n}^{2} - 5n - 3n - 6 + 11[/tex]

= (n²-8n+5)→Answer

I hope that it answer your question...

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Related Questions

1. Does this equation represent growth or decay?
A (t) = 800(1.21)

Answers

Answer:Decay

Step-by-step explanation: because of perenthesis

The equation represents decay

-2a - 7 = -11 (worth 25 points}

Answers

Answer:

A=2

Step-by-step explanation:

The answer to this question is “A=2”

PLEASE HELP ME ANSWER THIS PLEASE PLEASE PLEASE

Answers

Answer:

see explanation

Step-by-step explanation:

(a)

The turning point is the vertex of the graph

The coordinates are (2, - 4 )

(b)

The zeros are the values of x where the graph crosses the x- axis

The graph crosses the x- axis at

x = - 1, x = 5 ← zeros

(- 1, 0 ), (5, 0 ) in coordinate form

URGENT !!!!!!!!! Please answer correctly !!!!! Will be marking Brianliest !!!!!!!!!!!!!!!!

Answers

Answer:

m=-1/2

Step-by-step explanation:

(x1,y1)=(9,4)

(x2,y2)=(3,7)

m= y2−y1  / x2−x1

= 7−4  / 3−9

= 3  / −6

m= -1/2

Brainliest

Answer:

(6,5.5)

Step-by-step explanation:

(9+3)/2,4+7/2

(12/2),(11/2)

(6,5.5)

what is the answer to 2x - 20°

Answers

The answer is 10 i think

Answer:

so 10

Step-by-step explanation:

2−20

Grouping

1

Common factor

2−20

2(−10)

Solution

2(−10)

Find the value of x.

Answers

Answer:

16

Step-by-step explanation:

The lines 2x=ky+2 and (k+1)x=6y-3 have same gradient. Find possible values of k
I need the answers ASAP please!

Answers

Answer:

k = 3 or k = -4

(Anyone can correct me if I'm wrong)

Step-by-step explanation:

[tex]2x=ky+2\to\ eq1\\(k+1)x=6y-3\to\ eq2\\$Change to this form: $y=mx+c\\ky=2x-2\\y=\frac{2x-2}{k}\\$gradient of eq1: $\frac{2}{k}\\6y=(k+1)x+3\\y=\frac{(k+1)x+3}{6}\\y=\frac{k+1}{6} x+\frac{3}{6}\\y= \frac{k+1}{6} x+\frac{1}{2}\\$gradient of eq1: $\frac{k+1}{6}\\$Since gradient, m, is the same for both lines,$\\\frac{2}{k}=\frac{k+1}{6}\\12=k^{2}+k\\k^{2}+k-12=0\\(k-3)(k+4)=0\\k=3 $ or $ k=-4[/tex]

Which equation could be used to find the missing value of x?


Answers

Answer:

d

Step-by-step explanation:

What is the value of y?
03
04
05
06

Answers

Answer:

03

Step-by-step explanation:

Subtract 4, divide by 2, then get 3

The value of y from the figure is 3.

What is Rectangle?

An enclosed 2-D shape called a rectangle has four sides, four corners, and four right angles (90°).

A rectangle has equal and parallel opposite sides.

A rectangle has two dimensions—length and width—because it is a two-dimensional form. The rectangle's longer side is its length, while its shorter side is its breadth.

We have a figure of rectangle whose length = 10 + 2x or 18

and width = 10 or 2y+ 4

As, we know the opposite sides of rectangle are equal.

So, 10+ 2x = 18

2x = 8

x= 4

and, 10 = 2y+ 4

2y= 6

y= 3

So, the value of y is 3.

Learn more about Rectangle here:

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Solve the equation 5.5(x-3)=17+10.5 in systems of equations. How can you find your solution?

Answers

Answer:

x= 8

Step-by-step explanation:

5.5(x-3)=17+10.5

5.5x - 16.5= 27.5

5.5x= 44

x= 8

Please solve all these ASAP:))))))))

Answers

Step-by-step explanation:

All of them are equal.
Can anyone else confirm?

What is the slope of the line in this graph?

Answers

Answer:

90% sure it's 5/7

Step-by-step explanation:

Complete steps 2 and 3 to solve the system of equations.

y = 4x – 5,

y = –3

Answers

Answer:

Point form: ([tex]\frac{1}{2}[/tex],-3)

Equation form: x=1/2  y=-3

Step-by-step explanation:

hope it helps ;)

YO SOMEBODY HELP PLS IM STUCK

Answers

Answer:

X is less than or equal to -3

Hope that answers your question

Write the expression in exponential form
(3√a)^2

Answers

Answer:

a^2/3  

Step-by-step explanation:

Find the volume: 5ft 5ft 8ft 3ft ​

Answers

Answer:

120ft

Step-by-step explanation:

8 x 3 x 5

Justin made 6 pounds of granola to sell at his community fair. He charges $6.35 for each 23-pound bag of granola.
How much money will Justin earn if he sells all of the granola?

Answers

Answer: 38.1$

Step-by-step explanation:

Answer:

About $24.34

Step-by-step explanation:

if you do 23 divided by 6 you get 3.8333333 then you do 3.83333333 times 6.35 and you get about $24.34.

if triangle def is similar to triangle jkl find kl

Answers

Answer:

KL=45

Step-by-step explanation:

Madelyn has x nickels and y dimes, having a maximum of 15 coins worth no
less than $1 combined. At least 2 of the coins are nickels and at least 9 of the
coins are dimes. Solve this system of inequalities graphically and determine
one possible solution.

Answers

9514 1404 393

Answer:

 2 nickels, 9 dimes

Step-by-step explanation:

When there are a number of overlapping shaded areas on the graph, I find it convenient to use the reverse of the inequalities. That makes the unshaded area the solution space. Here, the vertices of the triangular solution space are ...

  (2, 9), (2, 13), (6, 9)

Any of the grid points within (or on) this triangle is a possible solution. One of them is (2, 9) corresponding to 2 nickels and 9 dimes.

__

Three solutions are shown:

  (x, y) = (2, 9), (3, 10), (4, 11)

Which graph represents the function g(x) = 3/(x+2) -4?

Answers

Answer:

x=-2, y=-4

Step-by-step explanation:I took the test on k12

The required graph of the given function g(x) = 3/(x+2) -4 is given in the image attached below,

Given that,
The graph for the function g(x) = 3/(x +2) - 4 is to be determined.

What is a graph?

The graph is a demonstration of curves that gives the relationship between the x and y-axis.

Here,
g(x) = 3/(x+2) - 4
Since the function has an inverse operator as 1 / (x + 2) the graph for the given function shown in the graph,

Thus, the required graph of the given function g(x) = 3/(x+2) -4 is given in the image attached below,

Learn more about graphs here:

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A store sells an item for $35 after a 25% markup. What is the price the store paid?
$8.75
$28.00
$43.75
$140.00

Answers

Answer:

The store paid $28.00

Step-by-step explanation:

28 times .25(25%) is 7 and 28+7=35

Simplify each expression. Show all work from credit.
Plz help me

Answers

Answer:

1. = 1 because any numbers to the power 0 is one

2. = 1/64

3.= b^15 base same power added up

!!!!!!Help Me Plz!!!!!!

Answers

Answer:

angle ABE = 55 degrees

Step-by-step explanation:

(3x-8) + (x+14) = 90

4x+6 = 90

4x = 84

x = 21

angle ABE = 3(21)-8 = 55

x^2+3=7x
Quadratic Formula

Answers

Answer:

=

7

±

3

7

2

Step-by-step explanation:

Answer:

=7±√37/2

Step-by-step explanation:

write 20x20 using an exponent

Answers

Step-by-step explanation:

20^2 because you are multiplying 20 two times

20×20=20², is the exponent form.

What is  multiplication?

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

Here, we have,

20×20

=400

=20²

Hence, 20×20=20², is the exponent form.

To learn more on multiplication click:

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Identify 3 characteristics of the parabola = −2^2 − 3 + 5.

Answers

Answer:

−2

Step-by-step explanation:

−22−3+5

=−4−3+5

=−7+5

=−2

PLS BRAINLIEST

a sneaker with a mark price of $1000 was offered at a discount of 8% for paying cash if someone paid cash for the sneakers how much did they pay

Answers

Answer:

920

Step-by-step explanation:

8% of 1000 is 80

1000 - 80 = 920

Can somebody help me with this. Will Mark brainliest.

Answers

Answer:

The answer is 36 I believe

Step-by-step explanation:

Answer:

Step-by-step explanation:

sin(x) = 5.9/8.1

x = arcsin(5.9/8.1) ≅ 47°

. Cost. A circular terrace has a radius of 6 ft. If it costs $1.50 per square foot to pave the terrace with brick, what will the total cost be?​

Answers

Answer:

$169.65 is the total cost

Step-by-step explanation:

A= πr2= π·6(2)≈ 113.1

113.1 * 1.50 = 169.65

Estimate how many times larger 6.1 x 1

07

is than 2.1 x 1

0−4

.


Estimate how many times larger 1.9 x 1

0−8

is than 4.2 x 1

0−13
i need help.
.

Answers

1) 4
2) 2

Pretty sure thats right
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