Solve the inequality. (Enter your answer using interval notation.)
x^2 ≤ 81

Answers

Answer 1

Answer

the answer is -9≤x≤9

Answer 2

Answer:

x = (-9,9)

Step-by-step explanation:

|x |< 9 - seperate the inequality into 2 possible cases

1. x<9, x>0   -x<9, x<0

find the intersection

x = (0,9)    -x<9, x<0

find the intersection again

x = (0,9)   x = (-9,0)

find the union

x = (-9,9)


Related Questions

Just read this over to see if this sounds good. It's my intro paragraph. Give me some insight if I need to change anything. Honest opinions please


People of the past and present judge each other by their class. This could relate to how much wealth they have as well as their social class or economic status. These judgments separate us as a society, and we live our lives around these judgments. Class, in simple words, is a group of people or things categorized by the quality and economic status. This relates to the novel The Great Gatsby by some of the characters in the novel, such as Tom and Daisy Buchanan who are sardonic and in love with material luxury.

·
Daisy Buchanan is a beautiful, charming woman from Louisville, Kentucky. For a while, she was with Gatsby before he went to war but later married Tom Buchanan because he had a promised wealthy life that he could provide her. In the novel, during the reunion at Daisy's house in the east egg, "'You make me feel uncivilized, Daisy,' I confessed on my second glass of corky but rather impressive claret. 'Can't you talk about crops or something?'" Nick's statement shows the wealthy class of the east egg and how Daisy flaunts her wealth to everybody instead of enjoying the people around her.

Answers

Answer:

This is amazing great job

Step-by-step explanation:

What is the volume of a sphere with a radius of 6in? Round to the nearest hundredth. Remember V = 4/3πr3 * 20 points 457.86 inches cubed 394.56 inches cubed 904.78 inches cubed 807.78 inches cubed

Answers

Given:

The radius of the sphere is 6 in.

To find:

The volume of the sphere.

Solution:

We know that, the volume of a sphere is

[tex]V=\dfrac{4}{3}\pi r^3[/tex]

Where, r is the radius of the sphere.

Putting r=6, we get

[tex]V=\dfrac{4}{3}\pi (6)^3[/tex]

[tex]V=\dfrac{4}{3}\pi (216)[/tex]

[tex]V=288\pi[/tex]

[tex]V\approx 904.78[/tex]

The volume of the sphere is 904.78 inches cubed.

Therefore, the correct option is C.

What is the area of EFG? ILL GIVE BRAINLIEST!!!!

Answers

Answer:

36

Step-by-step explanation:

8*9=72 72/2=36

please i need help FAST!!

Answers

1/4 divided by 8 = 1/32, since 1/32 is less than 1/16, the answer is less than 1/16 gallons.

What is the answer to this equation..?

-40 X -2 =

Answers

80...................

round the number 6,438,593 to the nearest 1,000

Answers

6,438,593

The answer would be: 6,439,000

5 or higher gets the next number to round up meaning that because of the 5 in 593 would make the 8 in the thousands place round up to 9.

Glad I could help! (:

Pls help question is in the picture

Answers

Answer:

25x135+32

Step-by-step explanation:

25x135+32

so would it be one solution, no solution or infinite solution?

Answers

Answer:

No solution would mean that there is no answer to the equation. It is impossible for the equation to be true no matter what value we assign to the variable. Infinite solutions would mean that any value for the variable would make the equation true. ... Note that we have variables on both sides of the equation.

Step-by-step explanation:

Answer:

Do you have a picture or the graph or equation? Also if this helps, I included a picture with an example of solutions on graphs. If you have any further questions feel free to ask me! (:

A shop in the mall is 7 metres by 12 metres. How much would it cost to recarpet the shop with the carpet that costs £4 per square metre

Answers

Answer:

£336

Step-by-step explanation:

cost of recarpeting = area of the shop x cost per square meter

Area of a rectangle = length x breadth

7 x 12 = 84m^2

cost of recarpeting = 84m^2 x 4 = £336

Someone help please

Answers

Answer:

A=(b^2)h/2

Step-by-step explanation:

Jack has to fill 50 water bottles for the football team. Each bottle holds 800 milliliters of water. How much does jack need in all?

Answers

Answer:

40000

Step-by-step explanation:

800 millimeters x 50 bottles = 40000 millimeters total

Please I beg help show work

A 94
B 1
C 47
D 3

Answers

Answer:

x = 3

Step-by-step explanation:

15x + 2 = 9x + 20

Now solve for x

Subtract 2 from each side

15x = 9x + 18

Subtract 9x from each side

6x = 18

Divide each side by 6

x = 3

Answer: x=3

Step-by-step explanation:

When you have two parallel lines cut by a transversal (line that goes across them), it forms special angles. One of those special angles is alternate interior angles. Alternate meaning opposite sides of the transversal and interior meaning on the inside of the parallel lines. The special relationship of these angles is that they are equal.

9x+20 and 15x+2 are alternate interior angles which means they are equal. Set them equal to each other to solve for x.

9x+20= 15x+2. Subtract 9x from both sides.

20= 6x+2. Subtract 2 from both sides.

18=6x. Divide both sides by 6.

3=x

In ΔRST, the measure of ∠T=90°, the measure of ∠R=67°, and TR = 94 feet. Find the length of RS to the nearest tenth of a foot.

Answers

Answer:

the length of RS to the nearest tenth of a foot is 240.6ft

I’ll give brainliest!! Plz answer!
Look at the image for the question

Answers

HENCE , ANSWER IS,8/9

mark me as brainlist

If sin 32°=cos x°, what does x equal?

Answers

Answer:

cos(58)

Step-by-step explanation:

i just randomly pressed numbers until it matched

Find the area of the circle below.

Answers

Answer:

area = 28.26 in²

Step-by-step explanation:

area = 3²(π) = 9(3.14) = 28.26 in²

PLSSS HELP GEOMETRY!!! LOOK AT IMAGE!

Answers

Answer:JI=16, JH=15, <W=37, <J=114, <I= 29

Step-by-step explanation:

When naming congruent triangles, the corresponding points are named in order from one triangle to another.

Since it states triangle WXY is congruent to triangle HJI this means that W corresponds to H, X corresponds to J and Y corresponds to I.

JI corresponds to XY, JH corresponds to XW angle W corresponds to angle H, angle J corresponds to angle X and angle I corresponds to angle Y. Use the triangle congruency statement as your roadmap.

To find the missing angle in the triangle, use the triangle angle sum theorem which states that all interior angles of a triangle sum to 180.

37+114+<I= 180. Combine like terms.

151+<I=180. Subtract 151 from both sides.

<I= 29

The number line model may be used to simplify which of the following?


–1 + 2 = 1

–1 + 2 = –3

–1 + 2 = –1

–1 + 2 = 3

Answers

-1 + 2 = 3 is the answer

What two integers are between 50

Answers

Answer:

7 and 8!

Step-by-step explanation:

The ___________________________ of an object is how heavy the object is

Answers

Answer:

Mass

Step-by-step explanation:

Answer:

the answer is weight.

Step-by-step explanation:

hope this helps!! please mark brainliest.

Tooru Oikawa’s favorite food is milk bread. And his personal motto is “if you’re going to hit it, then hit it till it breaks”!!!(.づ◡﹏◡)づ.

Answers

Step-by-step explanation:

BBC sport football r madhava warrier the same the same the

Answer:

your answer will be option B) 5

Step-by-step explanation:

have a nice day!!

HELPPP!!!
Select ALL of the ways to make this submarine go
down 5.
(Select all that apply.)
Add 5 floats
Remove 5 floats
Add 5 anchors
Remove 5 anchors

Answers

Answer:

Remove 5 floats or add 5 anchors.

Step-by-step explanation:

Use plus and minus tiles 4+(-2)+3(5)=

Answers

Answer: 17

Step-by-step explanation: 4 - 2 + 3 x 5,

4 - 2 + 15

         

Triangle WXY, with a vertex X at (3, 0), is rotated clockwise 270° about the origin.

Which of the following rotations is equivalent 270° clockwise rotation about the origin?

clockwise 270°
counterclockwise 90°
counterclockwise 360°
clockwise 90°

Answers

A rotation of 270 would be equal to 630, 990, etc. Adding 360 degrees would result in the same rotation.

Answer:

counterclockwise 360°

Step-by-step explanation:

what's
[tex] \sqrt{11 \times 3 + 3} [/tex]

Answers

Answer:

6 Ans .......

Step-by-step explanation:

Data:

√11 x 3+3

Solution:

=11 x 3+3

=√33+3

= 6 Ans .........

Find the values of each variables in each quadrilateral. ​

Answers

First lets solve for x we know 3x=90. In this case x=30. Now we can solve for y. We know the triangle needs to equal 180 so y+2(30)=180. So we get y=120. Hope it helps

Complete for y=x-4. How do I do this pls help

Answers

Answer:

-5 = -9

-2 = -6

0 = -4

4 = 0

Step-by-step explanation:

You substitute each value for x and then solve the equation. (Please give me brainliest)

help please I will mark u brainliest and give a rate of 5 stars!! and maybe give an explanation pls thank you.​

Answers

Answer:

1.57

Step-by-step explanation:

The formula for the area of a semicircle is

π (pi) * r^2 /2

The Diameter of your semicircle is 2, and the radius is half of the diameter, so the radius (r) of the semicircle is 1.

3.14 * 1^2 /2

Solve 1^2

3.14 * 1 / 2

According to PEMDAS, you solve the Multiplication first.

3.14 * 1 = 3.14

Now divide with your dividend above.

3.14 / 2 = 1.57

Therefore, your answer is 1.57

1.57 is the answer bc 3.14 is pi times 1 is itself so pi/3.14 over 2

Find the mean of the following numbers: 2, 5, 10, 12, 20.

Answers

Answer:

9.8

Step-by-step explanation:

Add up all of the numbers, then divide by how many numbers there are

Help me Please. This Due Today.

Answers

Answer:

1/8

Step-by-step explanation:

As you can see, I unit fraction is 1/8 or any fraction with a one mostly because unit means 1.. always remember that!

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