I need help with this plzz

Answer:

Step-by-step explanation:

In this question we will solve the polynomials by adding or subtracting the similar terms.

1). (-3x² - 8x + 2) + (-5x² - 9x - 2)

   = (-3x²- 5x²) - (8x + 9x) + (2 - 2)

   = (-8x²) - 17x + 0

   = -8x² - 17x

2). (-2x² + 7x - 1) - (8x² - 6x + 5)

   = (-2x² - 8x²) + (7x + 6x) - (1 + 5)

   = -10x² + 13x - 6

3). (5x²- 5xy - 10y²) + (5x²+ 5xy + 10y²)

   = (5x² + 5x²) + (-5xy + 5xy) + (-10y² + 10y²)

   = 10x²

4). (2 + 8x + 4x²) - (9 + 6x + 2x²)

   = (2 - 9) + (8x - 6x) + (4x² - 2x²)

   = -7 + 2x + 2x²

5). (4x³ + 5x²+ 3x) - (3x³ + 6x²- 1)

   = (4x³ - 3x³) + (5x² - 6x²) + 3x + 1

   = x³- x² + 3x + 1

Answer:

69.3 is the answer

{ Hello and welcome to Brainly :) i hope i helped }

Answer:

69.3

Step-by-step explanation:

Welcome to brainly, I hope you have a good time.

Answer:

Item 10

In a survey, a group of students were asked their favorite sport. Eighteen students chose “other” sports.

a. How many students participated?

80  students

b. How many chose football?

30 students

Step-by-step explanation:

got it right

Answer:

Remember that 6x^2 and -4x are not like terms. I drew a circle around them since those two will come first then goes the 5 and 3. Hopw this helps, thank you !!

Answer:

if all the corners are 90 degree angles:

x = -12

Step-by-step explanation:

2x+3 = x-9

x = -12

Answer:

2x+3=x-9

2x-x=-9-3

x=-12

Step-by-step explanation:

or it is 6

2x+3=x-6

2x-x=-6-3

x=-9

Answer:

oh i hade this i got wrong but the answer is 79

Step-by-step explanation:

Answer:

x= -33/2 or x=-16.5

Step-by-step explanation:

Expand the bracket

6(2x+3) = 2(5x-3)

12x+18=10x-15

Bring like terms together

12x-10x=-15-18

2x=-33

x=-33/2

Answer:

D

Step-by-step explanation:

i think its d im not sure

Karl traveled 420 kilometers by the time he had 200 liters of fuel remaining in his truck.

Why it is and what is distance?

To determine the distance Karl traveled by the time he had 200 liters of fuel remaining in his truck, we need to examine the graph provided.

From the graph, we can see that when the fuel remaining in the truck tank is 200 liters, the corresponding distance driven is approximately 420 kilometers.

Therefore, Karl traveled 420 kilometers by the time he had 200 liters of fuel remaining in his truck.

Distance is the physical length between two points or objects. It is a scalar quantity that measures the amount of space between two locations, without regard to the direction of travel. Distance can be measured in various units such as meters, kilometers, miles, and so on.

In physics, distance is often distinguished from displacement, which is a vector quantity that measures the change in position of an object relative to its starting point.

To know more about Distance visit:

https://brainly.com/question/26711747

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Answer:

y = 3x

Step-by-step explanation:

To find out what the equation is here, divide the y coordinate by the x coordinate of the point given (2, 6). Here divide 6 by 2. That would equal 3. That means that the y coordinate is 3 times as much as the x coordinate. As a result we can make the equation y = 3x out of what we now know.

Answer:

Y = 2x + 4

Step-by-step explanation:

y= mx +b

First, find m (aka the slope)

[tex]\frac{rise}{run}[/tex] = [tex]\frac{2}{1}[/tex] = 2

m = 2

Find b (aka the y-intercept)

The line touches the y-axis at (0,4). Therefore b = 4

Plug m and b into the slope-intercept equation

y = mx +b

y = 2x + 4

Answer:A

Step-by-step explanation:

Answer:

I am almost positive it is 0

Answer:

D

Step-by-step explanation:

yt = 2

the ratio is 1:25

2×25=50

Answer:

5 miles.

Step-by-step explanation:

Because area is just length times width so in that sense 20/4 is 5 :)

Answer: 522.15 I think

Step-by-step explanation:

1. We assume, that the number 177 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 177 is 100%, so we can write it down as 177=100%.

4. We know, that x is 295% of the output value, so we can write it down as x=295%.

5. Now we have two simple equations:

1) 177=100%

2) x=295%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

177/x=100%/295%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 295% of 177

177/x=100/295

(177/x)*x=(100/295)*x       - we multiply both sides of the equation by x

177=0.33898305084746*x       - we divide both sides of the equation by (0.33898305084746) to get x

177/0.33898305084746=x

522.15=x

x=522.15

now we have:

295% of 177=522.15

Answer: 140,300

Step-by-step explanation:

Answer:

140,300

Step-by-step explanation:

Answer:

(-2) + (3-7)

(-1) * (-2)

EVALUATE THE EXPRESSION

Step-by-step explanation:

HELP ME

Answer:

360

Step-by-step explanation:

360/1= 360 sides

Answer:

1

Step-by-step explanation:

Answer:

so 1.99 x 10^=19,90000

and 2.3 x 10^6=2,300,000

now subtract this 2 which equal 310,000

Step-by-step explanation:

For a minute i thought it was a general question and it's supposed to be 2012

Answer: the small number: 2

Answer:   fined  the parabola through (9,-10) with vertex ( -2, -6 ) using the vertex from y=a(x -h) +k.

standard from y=- 4/121 x2 -16/121 x -742/121

vertex from: y= - 4/121 (x+2)2-6

      hope this helps :)

(A)  I got 10(10)=100 points in remote space.

(B) I also got 10(9)=90 points in remote space

Answer:

a) 100

b) 90

Step-by-step explanation:

For the first question, the first button you press will have 10 possibilities, from 0-9.  For the second button, you will still have 10 possibilities since the same button may be pressed twice. Therefore, you get 10*10=100.

For the second one, the same button may not be pressed twice. For the first button press, you have 10 possibilities, but for the second button, you have 1 less possibility since you aren't allowed to push the button you pressed before. So there will be 9 possibilities. 10*9=90.

Answer:

(-7/8, -16) i  think, i might have done it wrong

Step-by-step explanation:

y - 4x = -2

y - 12x = 5

8x = -7

x = -7/8

y = -16

Answer: x  =  6  ,  y  =  15

Step-by-step explanation: