Simplify (7x3 + 7x2 – 4) + (x3 – 5x2 – 3x + 8). Choose the standard form of the answer.

Answers

Answer 1

Answer:

8x^3+2x^2-3x+4

Step-by-step explanation:

Answer 2

8x³ +2x² -3x+4 is the standard form of the  (7x³ + 7x² – 4) + (x³ – 5x² – 3x + 8)

What is Expression?

An expression is combination of variables, numbers and operators.

The given expression is  (7x³ + 7x² – 4) + (x³ – 5x² – 3x + 8)

7x³ + 7x² – 4+x³ – 5x² – 3x + 8

In the given expression x is the variable

Plus and minus signs are the operators of the given expression.

Add the like terms in the given expression

8x³ +2x² -3x+4

Hence, 8x³ +2x² -3x+4 is the standard form of the  (7x³ + 7x² – 4) + (x³ – 5x² – 3x + 8)

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Related Questions

Note: A maximum number of 4 points are available for this question. Part A is worth 1 point. Part B is worth 1 point. Part C is worth 2 points.
Brian received 45 trading cards from his mother and 25 trading cards from his uncle to start a collection.
Each week, Brian uses his allowance to buy a new pack of 15 trading cards to add to his collection.

Write an equation in slope-intercept form to represent the situation. Use x for the independent variable and y for the dependent variable. Identify what both variables represent.

Answers

Answer:

The representation of Brian's situation in slope intercept form is:

                              y= 15x +70

Step-by-step explanation:

Let x be the number of weeks Brian started his collection.

y be the number of cards Brian has at present.

                         y= 45+25+ 15 x

                   or, y= 15 x +70

which is in the form of,

                              y= mx +c                (slope intercept form)

where,

m= slope

x= x- intercept

c= constant.

Polygon A is a square. Polygon B has 2 more sides than polygon A. What type of polygon is B?
a.
pentagon
b.
decagon
c.
hexagon
d.
octagon


Please select the best answer from the choices provided

A
B
C
D

Answers

The answer is C. If Poly A is a square it has 4 sides. We know that Poly B has 2 more sides than Poly A. So we add 2+4 which is 6. So a 6 sided shape would be a hexagon.
c. hexagon ... a pollygon with 6 sides is a hexagon

-2( -6s + 8x ) use x=7 and s=8

Answers

Answer:

-16

Step-by-step explanation:

-2(-6*8+8*7)

-2(-48+56)

-2*8

-16

(File attached) Find the value of x in the triangle. Show work

Answers

Answer:

X = 74°

Step-by-step explanation:

90 + 30 = 120 (S + T = 120 )

180 - 120 = 60 (triangles total - S and T's Total = U )

120 - 46 = 74 (The angle TUX is 120 so the answer is 74)

Really hope I did this right and sorry if not

X=74 with that little circle on Top

Maggie cut out 4 right triangles of equal size from construction paper. Each right triangle has a base of 6 inches and a height of 8 inches. What is the total area, in square inches, of all the triangles combined?

HELP PLS

Answers

Answer:

12 square inches?

Step-by-step explanation:

8x6=48/4=12

The hypotenuse is 10 inches, so the area of all of them combined is 100 in^2

Sain has a student loan for $22,990. This loan has a simple interest rate of 5%. What is the amount of interest Sain will be charged on his student loan at the end of 3 years?

Answers

Answer:

3448.5

Step-by-step explanation:

I=PRT

I=22990×0.05×3

=$3448.5

The answer is 3448.5

I have really bad allergies and I can’t focus, I’m extremely flustered. Can you please help?

Answers

Answer:

a. 72

Step-by-step explanation:

Sorry about your allergies :(

Surface area = top & bottom, which are the same, and all 4 sides' areas added together:

top and bottom: each is 3 x 2 = 6 square cm, times 2 = 12 square cm.

two sides are 6 x 3 cm = 18, times 2 = 36 square cm

other two sides are 6 x 2 cm = 12, times 2 sides = 24 square cm

Add them all up: 12 + 36 + 24 = 72 square cm

Answer:

its A

Step-by-step explanation:

72

and sorry about your allergies too

i only need help on number 8 please

Answers

Answer:

A y =

1

2

x − 6

Step-by-step explanation:

Answer:

we can't see the question

Step-by-step explanation:

At 78°F, a certain insect chirps at a rate of 106 times per minute, and at 81°F, they chirp 112 times per minute. Write an equation in slope-intercept form that represents the situation.

Answers

Answer:

y=2x-50

Step-by-step explanation:

[tex]m=\frac{y^2-y^1}{x^2-x^1} = \frac{112-106}{81-78} =\frac{6}{3} =2[/tex]

slope-intercept formula(substitute 81 for x, 112 for y, and 2 for m:

y=mx+b

112=2(81)+b

112=162+b

Then subtract 162 from both sides, and b=-50

Plug in all numbers into original equation

y=mx+b  m=2 b= -50

So u get y=2x-50

Answer:

y = (1/2)x + 25 or y = 0.5x + 25

Step-by-step explanation:

I used a online calculator that is reliable.

Need help asap question is in the picture

Answers

Answer:

B. 1/2

Step-by-step explanation:

That is because there are 10 total jellybeans

we need to get purple and orange.

There are 2 purple and 3 orange = 5

5/10 jellybeans are what we need

5/10 simplified is 1/2

Thanks!!!

A ping pong ball (0.02 kg), bowling ball (25 kg), cotton ball (0.3 kg), wrecking ball (500 kg), and baseball (5 kg) are all moving with the same velocity. Which answer choice lists them from least kinetic energy to most kinetic energy?

A
Wrecking ball, bowling ball, baseball, ping pong ball, cotton ball

B
Cotton ball, baseball, ping pong ball, bowling ball, wrecking ball

C
Cotton ball, pin pong ball, baseball, bowling ball, wrecking ball

D
Ping pong ball, cotton ball, baseball, bowling ball, wrecking ball

Answers

Answer:

D) Ping pong ball, cotton ball, baseball, bowling ball, wrecking ball.

Step-by-step explanation:

If they are moving at the same time, the objects that have more mass have more kinetic energy.

the heaviest is the wrecking ball, and then the bowling ball, the baseball, the cotton ball, and the ping pong ball.

The only answer that follows this (in reverse) is D

I think it’s d not sure tho

will give brainliest!

Answers

Answer: Honey you have to do that no one on here can plus just a tip

(use a ruler it makes it easy)

Help splspsplspsw sjsplspsls

Answers

Answer:

a

Step-by-step explanation:

Answer: A would be your answer hope this helped

Step-by-step explanation:

can u plsss help its just box plots :)))))

Answers

It is B honey I’m pretty sure lollll!

Helppp ill mark brainliest

Answers

If we add all total costs for one year, we get 27,741 dollars for one total year. 11850+10645+1780+1864+1602=27741.
Multiply 27,741 with 4. 27,741 times 4= 110,964 dollars for a total of 4 years.

What is the volume of the box? 46.808 in cubed
What is the volume of the box if it is scaled down by a factor of 1/10?

Answers

Answer:

Volume is length times width times height. So, you would need to do 9 times 3 (27) times 10 (270). Then, you would divide by 10, because it is scaled down by 1/10, leaving you with 27

Step-by-step explanation:

Each soda costs $4.50 at the baseball game. Which of the following represents the dependent variable?

Answers

Answer:

The price of the soda.

Step-by-step explanation:

The dependent variable is the variable defined to be dependent on another object, typically the independent variable. That means the variable that varies based off of another value is the dependent variable. In this situation, as the number of sodas bought increases, the total price increases. The price varies off of the number of sodas because the increase in sodas causes it to increase. Thus, the price is the dependent variable.

The dependent variable would be the total cost of the sodas.

What is mean by Function?

A relation between a set of inputs having one output each is called a function. and an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).

Given that;

Each soda costs $4.50 at the baseball game.

Here, The cost of the sodas is dependent on the number of sodas purchased, which is the independent variable.

Thus, The dependent variable would be the total cost of the sodas.

Learn more about the function visit:

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The answer choices are 32, 12, 18, 24 please help i cant fail this test

Answers

it’s 32 because 4/5ths of 40 is 32
The answer is 32
160/5 =32

pls help will mark you brainliest

Answers

Number four is k=36 because I do the math and got that so it is that
4) k= 36
5) h= 10
6) j= 165

Justus owes $500 to his uncle for money he borrowed to go on vacation, $1,500 on his car, and $674 on his credit card. How much are his total liabilities?

(This is for my College Career Readiness class so im not sure which subject it falls under)

Answers

Answer:

$2,674

Step-by-step explanation:

That is how much money he owes if that's what you're looking for.

Hope this helps!

John gave the cashier $10 to pay for 3 packs of blueberries. The cashier gave him $6.25 in change. Each pack has the same amount of blueberries.

What is the cost in dollars and cents for each pack of blueberry?

Answers

Answer: $1.25 for each pack of blueberries

Part B: Suppose both girls got a 90% on their next math quiz. Which student will see a greater increase in her overall math grade?

A.
Jocelyn, because her grade will increase to 84.

B.
Kari, because her grade will increase by 0.8 points.

C.
Jocelyn, because her grade will increase by 1 point.

D.
Kari, because her grade will increase to 85.3.

Answers

Add the integers to get your answers sorry if wrong!!

PLZ HELP PLEASE SOLVE THESE AND SHOW UR WORK!!! I NEED U TO SHOW UR WORK PLZ IM BEGGING

Answers

Answer:

First one, 2.88-2.4 since 12% of 24 is 2.88 (For music) and 10% of 24 is 2.4(playing tennis) which is 0.48 hours. Second, Jazz and Opera because 40% of 55 is 22. and together, they add up to 22. PLS BRAINLIEST PLS PLS PLS PLS PLS

Step-by-step explanation:

I only got the second one but I think it is Country jazz and rock

HELPHELSNDNNXJXJXJXJXbsjsjdjdjdjdjd shs

Answers

Answer:

I think its just D

C. Is the answer I think

Help, please! I'm confused and don't know what to do..

Answers

Answer:

B. 30

Step-by-step explanation:

What we know: Beyunka has 6 baseballs that she keeps. That is 1/5 of the total that comes in one case.

What we need to know: How many baseballs are in one case?

What we need to do: Divide 6 by 1/5 (or multiply by 5).

6 / (1/5)

Dividing a fraction is the same thing as multiplying by its inverse.

6 * 5

Multiply 6 by 5 to get 30.

30

There are 30 baseballs in one case, so B is our answer.

Which table(s) show x and y in DIRECT PROPORTION

A) A and B only

B) B and C only

C) C and D only

D) D and A only

Answers

Answer:

B and C only show direct proportion

b)
- b and c only
hope this helps

Eog prep-??
I tried to solve it didn't work out

Answers

Answer:

38.5sqft

Step-by-step explanation:

If we have the 2 shorter sides of a right triangle, we can compute the area as:

A = ab/2

A = 7ft * 11ft / 2 = 77sqft/2 = 38.5sqft

Answer:

38.5sqft

Step-by-step explanation:

Please please fill this out I had already done it but none of my work got saved and I don't have time to do it again so please

Answers

Answer:

ALL PIRATES WITH HOOKS ARE TERRIBLE AT PICKPOCKETING

Step-by-step explanation:

N= $36

B= $5

P= $80

I= $20

O= $60

E= $14

W= $33

K= $38

G= $210

R= $40

T= $8

C= $34

L= $75

H= $560

A= $30

What is the area of the ice skating rink

Answers

Answer:

A

Step-by-step explanation:

50 x 50 is equivalent to 2500

2500 , A since when you multpily them together they are all equal to 2500

In which figure is the height of the cylinder half the radius? A cylinder with a height of 2 and diameter of 8. A cylinder with a height of 4 and diameter of 8. A cylinder with a height of 8 and diameter of 8. A cylinder with a height of 16 and diameter of 8. Mark this and return

Answers

A cylinder with a height of 2 and a diameter of 8. Please mark brainliest.

Answer:

The correct answer is A

Step-by-step explanation:

I took the test

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