simplify the equation -x^3 + 5x + 7x^2 +8x^3 - (-x^3 +x)​

Answers

Answer 1

Answer:

8x³ + 6x² + 5x

Step-by-step explanation:

Answer 2

Let's simplify step-by-step.

−x^3 + 5x + 7x^2 + 8x^3 − ( −x^3 + x )

Distribute the Negative Sign:

= −x^3 + 5x + 7x^2 + 8x^3 + −1 ( −x^3 + x )

= −x^3 + 5x + 7x^2 + 8x^3 + −1 ( −x^3 ) + −1x

= −x^3 + 5x + 7x^2 + 8x^3 + x^3 + −x

Combine Like Terms:

= −x^3 + 5x + 7x^2 + 8x^3 + x^3 + −x

= ( −x^3 + 8x^3 + x^3 ) + ( 7x^2 ) + ( 5x + −x )

= 8x^3 + 7x^2 + 4x

Answer:

= 8x^3 + 7x^2 + 4x


Related Questions

ASSIGNMENTS
COURSES
Assignment - 34. Performance Task
Attempt 1 of 1
SECTION 3 of 4
QUESTION 3 of 4
1
2
3 4
A line passes through the points (p, a) and (p, -a) where p and a are real numbers andp = 0. Describe each of the
following. Explain your reasoning.
1. slope of the line
2. equation of the line
3. y-intercept
4. slope of a line perpendicular to the given line

WRITER

Answers

Step-by-step explanation:

umm what grade is u im only in  6th i wannna help u

Write an equation for the following situation. Four times the number of coins in my pocket plus 5 more is 29.

Answers

Answer:

4x + 5 = 29

Step-by-step explanation:

x = # of coins in pocket, and you have 4 times that much. Add five to that, and you have a total of 29.

Answer:

4x+5=29

Step-by-step explanation:

let x=the # of coins in my pocket

4 times the number of coins in my pocket plus 5 more is 29 =

4x+5=29

a cylinder has a diameter of 6cm and a height of 3 cm what is the surface area of the cylinder?

Answers

Answer:

113.1cm²

Step-by-step explanation:

Answer: It is 36 pi

Step-by-step explanation:

I took the test on k-12

If the total surface area of the soup can is 23.211 sq in. If the diameter of the can is 3.25 inches,
what is the height of the can?
DON’T PUT A LINK!

Answers

Answer:

0.65 in

Step-by-step explanation:

I didn't put a link btw

Find the volume of each sphere. Round to the nearest tenth.

Answers

Answer:

d. 463246.7

Step-by-step explanation:

V=4 /3πr^3=4/3·π·48^3≈463246.7

In cm, the lengths of the sides of a rectangle are 30 and 24. Find the nearest degree the measure of the angle formed by a diagnol and one of the longer sides

Answers

Answer:

38.42cm

Step-by-step explanation:

Given that the length of the sides of a rectangle are 30 cm and 24 cm.

The length of the diagonal can be obtiaed using Pythagoras rule

Length of the diagonal = hypotenus

Hypotenus = sqrt(opposite ² + adjacent ²)

Opposite and adjacent sides are 30cm and 24 cm

Hypotenus = sqrt(30² + 24²)

Hypotenus = sqrt(900 + 576)

Hypotenus = sqrt(1476)

Hypotenus = 38.419

Length of diagonal = 38.42cm

Answer:

find the size of angle O to the nearest degree

What is 0.68 expressed an a fraction in simplest form with both the 6 and 8 repeating

Answers

Answer:

68/99

Step-by-step explanation:

A list of 5 numbers is shown below.
0, 3, 7, -6, -12.3
Which set contains all the numbers in the list?
A integers
B whole numbers
C natural numbers
D rational number

Answers

Answer:

D. Rational Number

Step-by-step explanation:

Integers are defined as all whole numbers, positive and negative, including 0. Since in the list there is a number that is not whole, A is not the correct answer choice.Whole numbers are all positive numbers (including 0) without decimals or fractions. Since the list has a number that is not a whole number, along with two that are negative, B is also not correct.Natural numbers are all positive numbers (excluding 0) without decimals or fractions. Since there is a 0 in the list, C is not correct.Rational numbers are all numbers that can be simplified into a ratio with 2 integers (i.e. π and e are not rational). Since every number on the list can be put into this category, answer choice D is correct.

at a light bulb manufacturing plant 2% of the light bulbs are found to be defective if the plant have 56 defective lightbulds on a certain day how many did it manufacture that day

Answers

Answer:2800

Step-by-step explanation:

So 2 percent is 2/100 or 1/50 so just multiply 56 by 50 and you will get 2800

-2x+6y=12 x-3y=3 graph the equations

Answers

Answer:

here ya go bruv:

Step-by-step explanation:

:3

Answer:

The graph, with the answers, is in the picture below.

Step-by-step explanation:

−2x + 6y = 12

Slope:  [tex]\frac{1}{3}[/tex]    y-intercept: (0, 2)

LINE COLOR: RED

x − 3y = 3  

Slope:  [tex]\frac{1}{3}[/tex]   y-intercept: (0, −1)

LINE COLOR: BLUE

A family use 3.5 litres of milk daily.How many litres of milk do the family use in January​

Answers

Answer:

108.5 liters

Step-by-step explanation:

you multiply 3.5 by the days there are in January

Please help me with this please ASAP

Answers

Answer:

h: 4

LA: 80

SA: 112

Step-by-step explanation:

Solve for h, and then use the previous equations.

Here it is , I have like 19 more to go

Answers

I’m not sure if I need to explain but I got c.

yeah i have no clue how to do this and there's two of them soo help is very much appreciated lol

Answers

Answer:

2^x - 4 is the answer here

Halfway through the hockey season, a
team has won 50% of the 40 games played.
Their goal is to win 60% of all their games,
How many more games must they win?

Answers

Step-by-step explanation:

60% × 40 = 24 more games.

24 + 40 = 62 games in total.

Ten times the square of a non zero number is equal to fifty times the number.

What is the number?

Answers

Answer:

5

Step-by-step explanation:

10x^2=50x

10x=50

x=5

x=5 hsjsbseinsosnsiwnskdbisndisnsdjd

HELP I DONT GET THIS

Answers

the ones in the bracket are a similar way of vectors.
hope that kinndaaa helps sorry xoxo

Factorize: (x+y)^2+11 (x+y)+30

Answers

2x+2y+11x+11y+30=13x+13y+30

GIVING BRAINLIEST PLEASE HELP!! Show your work please

Answers

Answer:

12

Step-by-step explanation:

-3,-4 go up 4

up 2 so 6 than 3 over to the right so 9 than another 3 to the right so 12

I need help with this . Please show workings.

1. a class library has 275 books . It is increased by 50 books.
What percentage increase is this?​

Answers

Answer:

18.18%

Step-by-step explanation:

Initial number = 275Increase in number = 50

Percent increase:

50/275*100% = 18.18%

brainliest. please help​

Answers

Could you please take the picture in a better angle can’t see it

Can someone please help me on this problem?

Answers

Answer:

$5820.07

Step-by-step explanation:

Substitute 243 into the equation for n:

[tex]c=117\sqrt[3]{243^{2} }+1264\\c=117\sqrt[3]{59049}+1264\\c=117*38.9407384+1264\\c=4556.06639+1264\\c=5820.06639[/tex]

Round 5820.06639 to the nearest hundredth:

5820.07

$5820.07

A square has an area of 225 ft2. What is the perimeter of the square?
A.15 ft
B. 25 ft
C. 60ft
D. 100 ft
Help Asap !

Answers

Answer:

perimeter would be 60ft

Step-by-step explanation

and square has 4 sides so you would multiply 4 by the square root of 225

C

I took the test.............

What’s the answer?!!!!!!!

Answers

Answer:

no

[tex] {16}^{2} + {35}^{2} is not equal {41}^{2} [/tex]

find the slope, y-intercept. write the equation :).

Answers

y=mx+b
m=2/5
b= y-intercept witch is 4

y=2/5x+4

slope: -4/5

y-int: 4

y=-4/5x+4

There are 24 boys for every 32 girls (24:32 ratio)
There are 3 boys for every 4 girls (3 :4 ratio)
There are 6 boys for every 8 girls 6 :8 ratio)
There are__
boys for every __ girls

Answers

Answer:

There are 3 boys for every 4 girls (3:4)

Step-by-step explanation:

3:4 is the simplest form of 24:32 and 6:8.

Therefore, there are 3 boys for every 4 girls.

32 km 24 km What is the length of the hypotenuse? C = kilometers ​

Answers

Answer:

40 kilometers

Step-by-step explanation:

the hypotenuse is a² + b² = c²

so first we have to get 32 and 24 into ²

            32² = 1024       (32 × 32)

            24² = 576         (24 × 24)

1024 + 576 = 1600

now we need to find the square root of 1600

√1600 = 40     (calculator)

therefore, the hypotenuse is 40 kilometers

goodluck, hope this helped,

-cheesetoasty

Sphere A has radius of 2 cm. Sphere B has radius of 4 cm. (=433 V = 4 3 π r 3 use 3.14 for π . ) a) The volume of sphere A is b) The volume of sphere b is c) The volume of Sphere B is_______times greater that the volume of Sphere A.

Answers

Answer:

volume of Sphere B is 8 times greater than the volume of Sphere A

Step-by-step explanation:

Sphere A:  V = 4π (2^3)/3 = 32π/3

Sphere B:  V = 4π (4^3)/3 = 4π(64)/3 = 256π/3

volume of Sphere B / volume of Sphere A =  (256π/3)/(32π/3) = 8

what is calculating the area of a triangle

Answers

The area A of a triangle is given be the formula A =12bh where be is the base h is the hight of the triangle

Answer:

bh/2

Step-by-step explanation:

So first, you have to multiply the base times height and you get a value. Then, you divide the value by 2. For example, a triangle that has a base of 3 and height of 4, you would multiply 4x3 which is 12 and then divide by 2 which is 6. Hope this helps :)

The area of a right triangle is 3gh. Find the height if the base is 3gh.
Area of a triangle: A = 1/2bh

Answers

Answer: height is 2

Step-by-step explanation:

A = 1/2bh

A = 3; b (base) = 3. Substitute these values in the formula and solve.

3 = 1/2*3*h = 3/2 h

h = 3 * (2/3) = 2

Answer:

Height = 2

Step-by-Step Explanation:

So, I'm not sure if "gh" is a measurement. But I'm thinking it should be solved like this.

Area =  3gh

Base = 3gh

Height = ?

Plug & Chug

3gh = 1/2 (3gh)(h)

2/1 · 3gh = 1/2 (3gh)(h) · 2/1

[tex]\frac{(2)(3gh)}{(3gh)\\}[/tex] = [tex]\frac{(3gh)(h)}{(3gh)}[/tex]

h = [tex]\frac{(2)(3gh)}{(3gh)}[/tex]

h = 2

Apologies if this is wrong, but I hope this helped!

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