Mathematics High School

( -2x + 8 ) + ( -5x - 7 )

Answers

Answer 1

Remove the parentheses and combine the like terms:

-2x + -5x = -2x-5x = -7x

8 + -7 = 8-7 = 1

The answer is -7x + 1

Answer 2

Answer:

Step-by-step explanation:

Related Questions

−5x−5y= −30 10x+3y= −3

Answers

Answer:

x = -3, y = 9

Step-by-step explanation:

-5x - 5y = -30

x - y = 6

x = -y + 6

10x + 3y = -3

10(-y + 6) + 3y = -3 (plug in x from the previous equation)

60 - 10y + 3y = -3

60 - 7y = -3

-7y = -63

y = 9

x = -y + 6

x = -(9) + 6

x = -3

(-3, 9) is the intercepting point of the two lines.

Did you mean: The manager of a youth soccer team bought 50 packages of socks for $10. Each. He estimated the total cost to be $5000. Create an equation that shows how many times more the manager's estimate, e, was than the actual cost, a.

Answers

Answer:

Estimated cost is 10 times more than the actual cost

Step-by-step explanation:

Packages of socks purchased = 50

Price per package = $10

Actual cost = total package purchased * price per package

Actual cost , a = 50 * $10 = $500

Estimated cost, e = $5000

Estimated costs / actual cost

$5000 / $500

= 10

Estimated cost is 10 times the actual cost

Which ordered pair is a solution of the equation?
3x+3y=-x+5y

Choose 1 answer:

(Choice A)

Only (1,2)

(Choice B)

Only (2,4)

(Choice C)

Both (1,2)s and (2,4)

(Choice D)

Neither

Answers

Answer:

(choice D)

Neither is the answer for the question you asked becaure x - y = 0

The toll for driving the segment of a certain freeway is $1.50 plus 25 cents for each mile
traveled. Joy paid a $ 25.00 toll for driving a segment of the freeway. How many miles did she
travel?

Answers

Answer:

Step-by-step explanation:

t=1.5+0.25m, if t=25 then

1.5+0.25m=25

0.25m=23.5

m=94

So she drove 94 miles.

*WILL GIVE BRAINLIEST*
*Dont mind the "24" I accidently pressed an answer :(*

Find the surface area of the cube.
side length = 2 cm

A: 4 cm2
B: 48 cm2
C: 24 cm2
D: 12 cm2

Answers

24cm ^2 is the answer

Surface Area = 6×22 = 24 centimeters^2

Which property does each equation demonstrate?

(2x2 + 7x) + (2y2 + 6y) = (2y2 + 6y) + (2x2 + 7x)

Answers

Answer: Commutative, closure, & commutative.

Step-by-step explanation: Right on Edg

solve pleaseeeeeeeeeeeee

Answers

Answer:

x= 136

Step-by-step explanation:

The two angles are corresponding angles, therefore they are equal to each other.

Answer: 136 degrees

Step-by-step explanation:

Angle 136 and x are corresponding angles so that’s why x is 136

Find the area of a parallelogram with these dimensions.

base = 6 meters

height = 2.25 meters

Answers

Answer:

13.5

Step-by-step explanation:

math i did it somehow

The answer would be 13.5 after you multiply both of them

Expand the following logarithmic expression.

log Subscript 5 Baseline (8 StartFraction StartRoot t EndRoot Over v EndFraction)

log Subscript 5 Baseline 8 + 2 log Subscript 5 Baseline t minus log Subscript 5 Baseline v

log Subscript 5 Baseline 8 + log Subscript 5 Baseline one-half t minus log Subscript 5 Baseline v

One-half log Subscript 5 Baseline 8 + one-half log Subscript 5 Baseline t minus one-half log Subscript 5 Baseline v

log Subscript 5 Baseline 8 + one-half log Subscript 5 Baseline t minus log Subscript 5 Baseline v

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

EDG 2021

Aeronautical researchers have developed three different processes to pack a parachute. They want to compare the different processes in terms of time to deploy and reliability. There are 1,200 objects that they can drop with a parachute from a plane. Using a table of random digits, the researchers will randomly place the 1,200 items into three equally sized treatment groups suitable for comparison.

How should the items be labeled to select the process groups using a table of random digits?

A 1–3
B 1–1200
C 0000–1200
D 0000–1199

Answers

The items should be labeled (a) 1 - 3 to select the process groups

How to determine the label?

The given parameters are:

Processes = 3Objects = 1200

From the question, we understand that the objects are to be classified.

This means that the objects would be classified based on the 3 process.

The 3 processes can be labeled 1 - 3

Hence, the label of the process group is (a) 1 - 3

Answers

oh boy
okay so combine the like terms
5x+4

Answer:

5x+4

Step-by-step explanation:

2x+2x= 4x

x-x+x= 1x

1+1+1+1=4

4x+1x= 5x

5x+4

ME CONFUSED

Which of the following rational functions is graphed below?

Answers

Hopefully I get this right I’m pretty sure it’s C

Which graph best represents the solution to the following pair of equations?

y = 4x + 2
y = x + 5

Answers

Answer:

where are the graphs?

Step-by-step explanation:

Answer:

Step-by-step explanation:

Christine made $270 for 18 hours of work at the same rate, how much would she make for 9 hours of work

Answers

Answer: $135

Step-by-step explanation: 270 divided by 18 to get how much money you earn in an hour then you multiply 15 x 9.

HELPPPPPPP!!!!! ITS DUDE SOONNNNN

Answers

Answer:

T'(-4,-2)U'(-7,-2)V'(-7,8)W'(-4,8)

Step-by-step explanation:

GOOD LUCK!

HELP!!!
The number of dandelions in a field (in thousands of dandelions) as a function of sunlight hours
is modeled by:
d(t) = -(2-2)2 + 49
What is the maximum possible number of dandelions?
-5 thousand dandelions
-7 thousand dandelions
-9 thousand dandelions
-2 thousand dandelions
-49 thousand dandelions

Answers

Answer:

its the last one

Step-by-step explanation:

hope it helpss

Answer: 49 thousend I think I am right but not sure

How tall is the tree ? Help me
Please

Answers

Answer:

Step-by-step explanation:gg

someone, please answer this question and I will mark brailiest.

Kellie has 7 pages of homework to do. If she can finish 3/4 of a page in one hour, how many hours will her homework take?

Answers

Answer:

7 1/2

Step-by-step explanation:

What is the value of x? *
3x + 10=3x - 28

Answers

Answer:

x = 27

Step-by-step explanation:

First of all the equation written on the question is incorrect, like not the image, this is because the angle of 3x + 10 and 3x - 28 is not the same, The equation will be 3x + 10 + 3x - 28 = 180

=> 6x - 18 = 180

=> 6x = 180 - 18

=> 6x = 162

=> x = 162 / 6

=> x = 27

Hope it helps :) If I am wrong, please consider telling me......

3x+10=3x-28
3x-3x= -28-10
0= -38
x=0

HELP ASAP HELP ASAP HELP ASAP

Answers

Answer:

i think its D

Step-by-step explanation:

Express this number in scientific notation.
31 billion

Answers

Answer:

3.1 * 10^10

Step-by-step explanation:

Find the area of the figure.

Answers

We can’t find the area of the shape just like that. So we have to draw a line and cut the shape, which makes it 1 square and 2 of the same triangles.
Let’s solve for the square first.
Area=Length x Width
A=3 x 6
A=18in
Now the 2 triangles
Area=Base x Height/2
Area=1.5 x 3/2
Area=2.25in
Now add all of them together:
18+2.25+2.25=22.5in

Answer and Step-by-step explanation:

For this shape, we have to draw a line that goes through the point that is inside of the shape from top to bottom.

This creates a square and two triangles.

The area formula for a triangle is A = [tex]\frac{bh}{2}[/tex]

The area of a square is A = b*b

Half of 3 is 1.5.

Triangles (Area combined):

Since there are two triangles that are the same, we only need to find the area of of 1 triangle, and not divide by 2.

A = 3 × 1.5 = 4.5

Square:

A = 3 × 3 = 9

Now, we add them together to get the total area of the figure.

9 + 4.5 = 13.5

The area of the figure is 13.5 [tex]in^{2}[/tex].

#teamtrees #PAW (Plant And Water)

pls help me its for today
4x2 and three quarters

Answers

Answer

Step-by-step explanation:

Answer:

75 cents

Step-by-step explanation:

Fruit drink is mixed with water at a ratio of 2 tsp of powdered drink mix per 1 gallon of water. If 2 12 gallons of water are used, how much powdered drink mix should be used

Answers

Answer:

4 tsp

Step-by-step explanation:

thats what i got im sorry if its wrong

Please help imma give lots of points and Brainlyest

Answers

Answer:

616

Step-by-step explanation:

first 2 2/3 divided by 1/3 = 8 so it is 8 cubes in that direction, then 3 1/3 divide by 1/3 = 11 so 11 cubes in that direction, which gives us a layer. 2 1/3 divided by 1/3 is 7 so we need 7 layers. multiply 8 by 11 to get the number of cubes per layer, which is 88. then 88 times 7= 616.

Need Help. Will give brainiest for correct answer with reason/work.

a. Graph the rational function[tex]y= \frac{x^{3} }{x^{2} -9}[/tex]

On the same axes graph the functions y=x^2 and y=1/x. What do you notice about the relationship between these graphs and the graph of the function you drew in part (a)?

Answers

Answer: y=1/x is the blue line and it goes straight up and down the y and x axis.

y=x^2 is the green line which is a thin "u" like shape. its going up the y axis.

y=\frac{x^{3}}{x^{2}-9} is the red line it goes up and down the y axis and diagonally across the middle of both axis'.

Step-by-step explanation: I went to desmos calculator and typed in your equation and it automatically gave me this graph. (See Picture for more details.)

Please help ASAP!! Thank you in advance!

Answers

Answer:

9.the second one

10.the first one

Answer:

[tex]\huge\boxed{9) Option \ 2}[/tex]

[tex]\huge\boxed{10) \ Option \ 1}[/tex]

Step-by-step explanation:

Part 9)

1) (13)(3) = 39

2) (-12)(-3) = 36 ← Correct Option

3) 4(-9) = -36

4) (-18)(2) = -36

Part 10)

= (-3)(-2)(1)(4)

= (6)(1)(4)

= (6)(4)

= 24

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Please help it is due right now

Answers

Answer:12 and 5

Step-by-step explanation:

Pumpkin also nice laptop

Charles and his friends went out to dinner. They split the bill evenly. The bill
came to $37.50. If each person paid $12.50, write and solve an equation to
determine how many people went out to dinner. *
Translating algebraic equations

Answers

Answer:

The answer is 3 people.

Step-by-step explanation:

$37.50 ÷ 3= $12.50 per person

Answer:

3×12.50=37.50

Step-by-step explanation:

12.50+12.50=25.00

25.00+12.50=37.50

12.50×3=37.50

The new shape is called the ........
A )copy
C ) image
B ) mirror

Answers

Depends what happened too the shape...
But it’s for surely still and image so c

Other Questions

Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this.But, in a larger sense, we can not dedicatewe can not consecratewe can not hallowthis ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before usthat from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotionthat we here highly resolve that these dead shall not have died in vainthat this nation, under God, shall have a new birth of freedomand that government of the people, by the people, for the people, shall not perish from the earth.Abraham LincolnNovember 19, 1863Which best describes the overall tone of the speech? Bitter and serious Joyful and celebratory Passionate and anxious Formal and virtuous What is the constant factor in the geometric pattern below?4, 6, 9, 13.5, 20.25 . . . A. Each term is multiplied by 0.5. B. Each term is multiplied by 1.5. C. Each term is multiplied by 1.75. D. Each term is multiplied by 2. 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