Factor completely:

x³ - 9x

Answers

Answer 1

Answer:

x(x+3)(x-3)

Step-by-step explanation:

Factor out common term x

=x(x^2-9)

Factor x^2-9;

(x+3)(x-3)

=x(x+3)(x-3)

Answer 2

Answer:

x(x + 3)(x - 3)

Step-by-step explanation:

What we're given is a difference of squares multiplied by x.  If we start by factoring x out, we can simply expand the binomial:

x³ - 9x

= x(x² - 9)

= x(x + 3)(x - 3)

Any time you see an expression in the format a² - b², that is called a difference of squares, and can always be expanded out to (a + b)(a - b).  In this case, a is x, and b is 3.


Related Questions

If a quadrilateral is a rhombus, then it is _______________________ *
Equilateral
Congruent
Perpendicular
Parallel
Equiangular

Answers

Step-by-step explanation:

parallelogram

If a quadrilateral is a rhombus, then it is a parallelogram. If a parallelogram is a rhombus, then its diagonals are perpendicular. If a parallelogram is a rhombus, then each diagonal bisects a pair of opposite angles.

write f(x)=-(x+3)^2+8 in standard form

Answers

Answer:

f(x) = -x^2 -6x - 1

Step-by-step explanation:

Answer:

y=-x^2-6x-1

Step-by-step explanation:

f(x)=-(x+3)^2+8

f(x)=-(x+3)(x+3)+8

f(x)=-(x^2+3x+3x+9)+8

f(x)=-x^2-3x-3x-9+8

f(x)=-x^2-6x-9+8

f(x)=-x^2-6x-1

y=-x^2-6x-1

Amy was given $74 for a birthday present. This present, along with earnings from a Saturday job, is being set aside for a mountain bike. The job pays $7.50 per hour, and the bike costs $344.

Answers

Answer:

If youre looking for how many hours shell have to work:

Step-by-step explanation:

74+7,5*x=344

7.5*x=270

x=36 hours

A container is shaped like a triangular prism each base of the container is an equilateral triangle with dimensions

Answers

Answer:

Thea answer is below

Step-by-step explanation:

A triangular prism is a polyhedron (a three dimensional shape) made of a triangular base and 3 faces joining corresponding sides.

The triangular prim has 5 faces of which two are triangular and three are rectangular. It also has 6 vertices and 9 edges.

The lateral surface area of a triangular prism = (a + b + c)h; where a, b and c are the sides of the triangular base and h is the height of the triangle.

Given that a = b = c = 6 cm, h = 15 cm. Hence:

Lateral surface area = (6 + 6 + 6)15 = 270 cm²

Answer:

something

Step-by-step explanation:

I need help please, for both of them

Answers

Answer:

find the area of the rectangle in the middle....the two ends are half circles so just find the area of them put together as one circle and add the two areas together....good luck

Step-by-step explanation:

Answer:

Step-by-step explanation:

55

please help me figure out the volume c:

Answers

Answer:

Prism d has the greater volume

Step-by-step explanation:

Quadrilateral QRST has diagonals that are perpendicular but not congruent. Which type of quadrilateral could describe quadrilateral QRST?

Answers

Answer:

Rhombus

Step-by-step explanation:

This undoubtedly has to be a rhombus. When you look at other quadrilaterals for example and want to judge and or differentiate, we see that in the case of a square, the diagonals are equal to one another and they are not congruent. Same can be applied to that of a rectangle as well, it's diagonals aren't congruent, even if they appear perpendicular.

On the other hand, the diagonals of a rhombus is both perpendicular, and at the same time congruent. And thus, that's our answer

Patricia’s dog, Max, weighs 6.75 kilograms. There are approximately 0.45 kilograms in 1 pound. Which measurement is closest to the number of pounds Max weighs?


Pls hurry...

Answers

15 pounds. 6.75/0.45= 15

Find the value of x.

Answers

Answer:

6

Step-by-step explanation:

Because they are the same

PLEASE HELP!!
WORTH 30 PTS!!
Choose the first step in solving the following equation:
4(2x - 5) + 2x = 11

a 8x - 20 + 8x = 11
b 8x - 20 + 2x = 11
c 4(2x) + 2x = 16
d 4(4x - 5) = 11
e (2x - 5) + 2x = 7

Answers

Answer:

B) 8x - 20 + 2x = 11

Step-by-step explanation:

4(2x - 5) + 2x = 11

use pemdas

parenthesis comes first

open the parenthesis

4 * 2x - 4 * 5 + 2x = 11

8x - 20 + 2x = 11

ILL GOVE BRAINLIEST!! PLEASE HELP W THIS

Answers

No it’s not proportional the formula for speed is distance divided by time if you calculate it for each one you get 65,60,65 etc

-70÷10=

pls help .....................​

Answers

Answer:

-7

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

7y+9+2y+10= Answer plsss

Answers

Answer:

9y+19

Step-by-step explanation:

7y+9+2y+10

Combine like terms

7y+2y    +9+10

9y            +19

what is the name and type of arc of this circle ​

Answers

Step-by-step explanation:

minor

Find the y-intercept of the graph.

Answers

Answer:  The y-intercept would be -2

Step-by-step explanation:  To find a y-intercept you just need to find the point at which the line crosses the y axis (which is the vertical one.)  We know its -2 also because of the unit amount of the graph itself.  The 5 at the top of the y axis is at the 5th box which means that each vertical unit represents 1.  This is how I know my answer is correct.  I hope this answer has been of use to you and if you have further questions please do not hesitate to reach out :)

WILL GIVE BRAINLIEST!!!!!!!!!!!!!

f(x)=4^x

stretch vertically by a factor of 2

Answers

Answer:

f(x) = 4x^2 +2, hope this helps

Step-by-step explanation:

What is the correct inverse function for f(x)=In(3x)?

Answers

Answer:

f⁻¹(x) = eˣ / 3

Step-by-step explanation:

f(x) = In(3x)

y = In(3x)

swap x and y: x = In(3y)

solve y: eˣ = 3y

y = eˣ / 3

f⁻¹(x) = eˣ / 3

Dos cuadrados congruentes (iguales), ABCD y PQRS, tienen longitud de lado 15. Los cuadrados se traslapan y forman el rectángulo AQRD de 15 por 25. ¿Qué porcentaje del área del rectángulo AQRD esta sombreada? *

Answers

Answer:

20%

Step-by-step explanation:

De la imagen:

AB + PQ-PB = AQ

pero AQ = 25, por lo tanto:

15 + 15 - PB = 25

30 - PB = 25

PB = 25

La región sombreada es el rectángulo PBCS

Área del rectángulo PBCS = PB * BC = 5 * 15 = 75

El área del rectángulo AQRD = AQ * QR = 25 * 15 = 375

porcentaje del área del rectángulo AQRD que está sombreado = (área del rectángulo PBCS / área del rectángulo AQRD) * 100% = (75/375) * 100% = 20%

What is the solution set for-4x - 10 < 2?​

Answers

Answer:   -3

Step-by-step explanation:

-4x  - 10 < 2

-4x < 12

x > -3

a. 45:75
Simply the ratio

Answers

Answer:3:5Hope this helps!!

3/5

first we find gcf for both numinator and dinominator do the gcf is 15

next we divide both by15

then 45÷15=3 and 75 ÷15=5

so the answer is 3/5 or 3:5

OMG PLZZZZZZ HELP ME I REALLY NEED HELP :'( EVERYONE WHO HELPS ME GETS IT WRONG PLZZZ HELP ME IM BEGGING YOU

Answers

Answer:

1st Picture: d = -16

2nd Picture: g = -13.8

Step-by-step explanation:

1st Picture: Divide both sides by -11 to balance both sides and get the answer.

2nd Picture: Subtract 1.2 from both sides.

Answer:

Question 6:

We have -12.6 = g + 1.2, so we move the 1.2 to the left side to get -13.8 = g because when you move a number you are essentially minusing that number so 1.2 becomes -1.2 .

Question 7:

We have 176 = -11d so we divide by -11 to get -16 = d.

Hope this helped!

Which of the following is a difference of cubes? x^6 + 27y^9 3x^9 - 64y^3 27x^{15} - 9y^3 125x^{21} - 64y^3

Answers

Answer:

D) 125x²¹- 64y³  

Step-by-step explanation:

A) x⁶ + 27y⁹ = (x²)³ + (3y³)³  - sum of cubesB) 3x⁹ - 64y³ - the first term is not a cubeC) 27x¹⁵ - 9y³ - the second term is not a cubeD) 125x²¹- 64y³ = (5x⁷)³ - (4y)³ - difference of cubes

Correct option is the last one

Answer:

D) 125x²¹- 64y³  

Step-by-step explanation:

A) x⁶ + 27y⁹ = (x²)³ + (3y³)³  - sum of cubes

B) 3x⁹ - 64y³ - the first term is not a cube

C) 27x¹⁵ - 9y³ - the second term is not a cube

D) 125x²¹- 64y³ = (5x⁷)³ - (4y)³ - difference of cubes

Correct option is the last one

5x + 8 =33 what is the x

Answers

Simplifying
5x + 8 = 33

Reorder the terms:
8 + 5x = 33

Solving
8 + 5x = 33

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + 5x = 33 + -8

Combine like terms: 8 + -8 = 0
0 + 5x = 33 + -8
5x = 33 + -8

Combine like terms: 33 + -8 = 25
5x = 25

Divide each side by '5'.
x = 5

Simplifying
x = 5

66.7 is about how many Americans that participated in the 2020 elections

Answers

Answer:

I think you have the wrong subject

anyone need help with a subject mark me brainlist

Answers

Answer:

people cant mark you brainlest but you can mark people who answer your questions brainliest

Step-by-step explanation:

How many times would you have to add 1/3 with itself to get the answer to the multiplication problem below? 5×1/3

Answers

Answer:

5 times

Step-by-step explanation:

Given the multiplication problem :

5 * 1 /3 = (5*1) / 3 = 5/3

The number of times 1/3 will. Have to be added to itself to obtain 5/3.

To do this :

5/ 3 ÷ 1/3

5/3 * 3/1

= (5*3) / (3*1)

= 15 / 3

= 5

Hence, 1/3 will have to be added 5 times to itself

The binary operation is defined by a*b=(a+b)² - 2ab
Colulate the value of 3*4​

Answers

Sorry about the bad handwriting

Find the volume of a cone that has a radius of and a height of 1.

Answers

the volume of the cone would be 2.36 I hope this helps ❤️

Gina used 9 cups of sugar for every 6 cups of flour. At this rate, how many cups of sugar would Gina need per 1 cup of flour?

Answers

Answer:

1.5 cups of sugar for 1 cup of flour.

Step-by-step explanation:

9 cups of sugar/6 cups of flour= 1.5 of sugar

Answer:

1.5 cups of sugar

Step-by-step explanation:

set up a proportion:

9/6=x/1

solve:

6x=9

x=1.5

I need help on this problem can someone help

-8 (y - 86) = -48

Answers

Answer:

y=92

Step-by-step explanation:

Divided both sides by the numeric factor on the left side, then solve.

y = 92

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