Using a sheet of graph paper, solve the following system of equations graphically. x+y=0 x-y+2=0

Answer:

2x³ + x² - 11x - 15

Step-by-step explanation:

Step 1: Write out expression

2x³ + x² + 7x - 6 - (-2x + 10x + 10x + 9)

Step 2: Distribute negative

2x³ + x² + 7x - 6 + 2x - 10x - 10x - 9

Step 3: Combine like terms (x)

2x³ + x² + 9x - 10x - 10x - 9 - 6

2x³ + x² - x - 10x - 9 - 6

2x³ + x² - 11x - 9 - 6

Step 4: Combine like terms (constants)

2x³ + x² - 11x - 15

Answer:

Im here can u do it now?

Step-by-step explanation:

[tex]x + 2y = -1\\x=-2,0,3\\f(x)=y\\[/tex]

plug in each value of x in the function y:

[tex]-2+2y=-1\\2y=1\\y=\frac{1}{2}[/tex]

first point is [tex](-2, \frac{1}{2})[/tex]

so when x = -2, f(x) = 1/2

[tex]0+2y=-1\\2y=-1\\y=-\frac{1}{2}[/tex]

second point is [tex](0,-\frac{1}{2})[/tex]

so when x = 0, f(x) = -1/2

[tex]3+2y=-1\\2y=-4\\y=-2[/tex]

third point is [tex](3,-2)[/tex]

so when x = 3, f(x) = -2

Answer:

15

Step-by-step explanation:

The total of hot choclate made by Whitney = 7 1/2 quarts.

= 7 (2) + 1 15

----------- = ---

2 2

each mug holds 1/2 quarts

Total quarts of the hot chocolate ÷ quarts of hot choclate hold by each mug:

= 15/2 ÷ 1/2

= 15/2 x 2/1

= 15

Whitney will be able to fill 15 mugs

Answer:

1.625 hours

Step-by-step explanation:

The equation is

d = rt  where d is distance  r is rate and t is time

65 = 40 *t

Divide each side by 40

65/40 = t

1.625 hours = time

Part A

The coefficient would be the number that is with a variable. The coefficient of 7.50h is 7.50. The variable is h, variables can be a letter or symbol that stands for something in a equation. For this question, h stands for the number of hours Corinne works. The constant is the number that is alone in the equation. That doesn't have a variable with it. In this equation the constant would be the number 40.

Part B

To solve this I will plug in 25 into "h" in and 300 for "s" in the equation 7.50h + 0.20s + 40 and then solve it.

25 × 7.50 = $187.5.

0.20 × 300 = $60

Total: $187.50 + $60 = $247.50 + $40 = $287.50

Part C

If Corrine gets a raise and earns $9 an hour the coefficient would change. It would be 9h instead of 7.50h.

Answer:

Tracy sent 12 texts

Step-by-step explanation:

hope this helps

Answer:

The answer is 12 texts.

Step-by-step explanation:

Ok, so I'm assuming that Tracy is the little sister.

Stacy's texts: s

Tracy's texts: t

46 = s + t

s = 2t + 10

Substitute 2t + 10 for s in the first equation.

46 = 2t + 10 + t

46 = 3t + 10

-10          -10

36 = 3t

36/3 = 12

Tracy sent 12 texts and Stacy sent 34 texts.

If you use this answer, please mark Brainliest.

Answer:

Whole numbers are all natural numbers including 0 e.g. 0, 1, 2, 3, 4…

Integers include all whole numbers and their negative counterpart e.g. …-4, -3, -2, -1, 0,1, 2, 3, 4,…

Step-by-step explanation:

Answer:

We. can see there's a  black point at -3.7 and an arrow going to the left.

As the arrow goes to the left, it must be less than -3.7 or less than or equal to -3.7, now, we will need to see the colour of the point to know which it is.

As there is a black point, -3.7 is also contained in this range...

What does that mean? That means it will be less than or equal to -3.7

So we know the correct option is a) less than or equal to -3.7, what we could write as ([tex]-\infty,-3.7[/tex]].

Answer:

Step-by-step explanation:

[tex]-6w + 1 = -11[/tex]

Move +1 to the right side and change its sign

[tex]-6w =-11-1\\[/tex]

Simplify

[tex]-6w =-12[/tex]

Divide both sides of the equation by -6

[tex]\frac{-6w}{-6} = \frac{-12}{-6} \\\\w = 2[/tex]

Answer:

Angle 9 = 65°

Step-by-step explanation:

Given:

Angle 7 = 65°

Angle 7 is alternate to Angle 9

Find:

Angle 9

Computation:

We know that

alternate interior angles are equal and angle 7 is alternate to angle 9

So,

Angle 7 = Angle 9

So,

Angle 9 = 65°

Answer:

not similar

Step-by-step explanation:

Triangle FGH has two sides that are equal GH and GF

Triangle UVW does not have two sides that are equal

They cannot be similar

Answer:

No

Step-by-step explanation:

No, because the sides on the two triangles are not congruent and the smaller triangle can't be multiplied by a number to equal the bigger triangle.

Answer:104

Step-by-step explanation:

Answer:

n = 104

Step-by-step explanation:

26/90 = n/360

Using cross products

26 * 360 = 90 (n)

Divide each side by 90

26 * 360/90 = 90 (n)/90

104 = N

Answer:

x = 109

Step-by-step explanation:

The exterior  angle of a triangle is equal to the sum of the opposite angles in the triangle

x = 45+64

x =109

Answer:  B. 109 degrees

Step-by-step explanation:

The two remote interior angles add up to the exterior angle which means if you add the two measures you will get x.

64 + 45 =     109    

Answer:

They are not

Step-by-step explanation:

Because p +3 is 3p and it does not add up to 15.

Simple

Step-by-step explanation:

State 3 or more details why and where you want to go on the plane ride. Use full sentences and good punctuation. Hope you get an A+!

Answer:

Here's the new and improved essay. I made sure to add the literary devices.

Step-by-step explanation:

My mom said that this is the last time I can help you because she needs me to focus on my own priorities even if I say I want to do it on my freetime  shes saying that I can't do homework for people, because she says I'm helping them cheat and I'm giving them a bad example. I'm really sorry. I hope this essay works out for you.

Answer:

Step-by-step explanation:

6x-3y+10=0 ⇒-3y=-6y-10 ⇒ y=-6x/-3 -10/-3⇒ y=2x+10/3

2x -y +9 =0​ ⇒ -y=-2x-9 ⇒y=2x+9

Answer:

110 combinations.

Step-by-step explanation:

We are going to be choosing without replacement.

Out of 11 people, we can choose one president, but after choosing, we would be left out with 10 people to choose a vice president from.

To calculate the possible combinations of president and vice-president, we multiply 11 by 10

11 x 10

= 110

Therefore we have 110 vice-president/president possible combinations.

Answer: 17

Step-by-step:

Nikils soccer team has 13 players. nikil has 4 fewer players on his team than roses team. How many players are on roses team?

nick has 13 players they have 4 less then roses team that means rose has 4 more tram members then nikils team

that would mean you add 13+4 to get roses team

13 + 4 =17

Answer:

Step-by-step explanation:

Score of 2 questions = 2 *5 = 10

He got 2 questions wrong. So, 50 - 10 = 40.

Camden's test score out of 50 =  [tex]\frac{40}{50}[/tex]

Score for x questions = x *5 = 5x

Camden's score if he got 'x' questions wrong = 50 - 5x

Answer:

[tex]\Large \boxed{\mathrm{weight \ increases}}[/tex]

Step-by-step explanation:

Taking the formula for weight:

[tex]\sf Weight = mass \cdot acceleration \ of \ gravity[/tex]

[tex]W=m \cdot g[/tex]

The mass will remain the same.

[tex]\upuparrows W=m \ \ \cdot \upuparrows g[/tex]

As the force of gravity increases, the weight increases.

[tex]\downdownarrows W=m \ \ \cdot \downdownarrows g[/tex]

As the force of gravity decreases, the weight decreases.

Answer:

sorryyyyy

Step-by-step explanation:

___________"__________

uuuuuuuuuuuuuuuuuuuuu

j

Answer:

n>−5

Step-by-step explanation:

Step 1: Add 4n to both sides.

−3n+2+4n>−4n−3+4n

n+2>−3

Step 2: Subtract 2 from both sides.

n+2−2>−3−2

n>−5

Answer:

180°

Step-by-step explanation:

JM is the diameter of the circle with center L.

[tex] \huge \red{ \boxed{\therefore m\widehat{(JKM)} = 180\degree}} \\ [/tex]

Answer:

Step-by-step explanation:

JLM is diameter so  arc JKM is half of circle

measure of arc JKM = 0.5m•360° = 180°

Answer:

its 3 terms is also a trinomial

Step-by-step explanation:

first collect the like terms together that is all the coefficient of y and the numbers

i.e 5y-3y=8+12

then now you can solve

2y=20

and y=10

Answer: y=10

Step-by-step explanation:

Answer:

Harry put 5 movies on each shelf.

Step-by-step explanation:

The information provided is:

So, first Harry bought 2 movies on four different days.

That is, a total of 8 movies.

Then, he bought 3 movies on two other days.

That is, a total of 6 movies.

So, in total Harry bought 14 movies.

Now, he sold 2 sets of 2 movies.

That is, he sold 4 movies.

He has 14 - 4 = 10 remaining movies with him.

It is provided that he divided remaining movies into 2 groups to put onto his shelves.

So, he put 10/2 = 5 movies on each shelf.

Answer:

[(4 x 2) + (2 x 3) – (2 x 2)] ÷ 2

Step-by-step explanation:

Answer:

Step-by-step explanation:

first i would combine like terms so 1/4a + 1/3a is equal to 7/12 then the equation would be 7/12a+8=22 simplify the isolate the variable so i think it A=24

Answer:

Hey there!

Step-by-step explanation:

Equation: 1/4a + 1/a + 8 = 22

(The answer is 24)

(You have to do 3 steps in order to solve this question! The steps are below!)

~1. First you have to simplify both sides of the equation.

=> (1/4a + 1/3a) + (8) = 22

=> 7/12a + 8 = 22

~2. Next, subtract 8 from both of the sides.

After you do that you will get, 14

7/12a=14

~3. Lastly, you just multiply both sides by 12/7.

(12/7) x (7/12a)

(12/7) x (14)

~Therefore, A would equal to 24.

A=24

~Hope this helps!

~Good luck! :)

~If you still don’t understand, ask for help! (I would be glad to answer any questions you have! :D )

Answer:

-2814

Step-by-step explanation:

5 cats, u eat 2819 of them, that means u have negative 2819

Answer: 2(x+y)-25

Step-by-step explanation:

First, we need to show the sum of Roger and Olivia's heights. If Roger is x and Olivia is y, the sum is x+y

Next, we need to double that. To double something we multiply it by 2. Since we need double the expression we found above, we put it in parentheses. So the doubled sum is shown as 2(x+y)

Finally, we need to show that Isabella is 25 centimeters shorter than the doubled sum. To do that, subtract 25.

The final expression for Isabella's height is 2(x+y)-25