Mathematics Middle School

The equality [tex]\sqrt{x^{2}} =-x[/tex] is true for ______________

format the answer should be in:
[tex]x\ \textless \ -3; x\ \textless \ 3\ \textless \ 7; x; x\ \textgreater \ 7[/tex]

Answers

Answer 1

Answer:

X < -3

Step-by-step explanation:

-x will be positive when x < -3

Related Questions

If you had taken the PSAT test can you tell me if it is hard, what topic is on it (especially math) and what happens basically?
I got an email saying it was for 8/9 grade and I'm in 8th. It is free for me and I'm wondering what I have to do. Do I need to make an account on psat.org or will my teacher send me a link to the test?

Answers

Answer:

Its relly hard trust me!

Step-by-step explanation:

Please help me with question number 1 and 2

Answers

btw you can use other numbers to find B I used the simplest

Answer:

Here's below screenshot. Hope this helps. :D -

which expression has a value of 6 when x=2 and y=4?

Answers

B
refer to picture for steps
Answer:6Verification:

Let's verify all the options to the question. Clue given: x = 2, y = 4

Option A:

(x² + 8) ÷ y - 2

=> (2² + 8) ÷ 4 - 2

=> (4 + 8) ÷ 4 - 2

=> 12 ÷ 4 - 2

=> 3 - 2

=> 1 ≠ 6

This answer does not equal 6.

Option B:

(x² + 8) ÷ (y - 2)

=> (2² + 8) ÷ (4 - 2)

=> (4 + 8) ÷ (4 - 2)

=> 12 ÷ 2

=> 6 = 6

This answer is correct as 6 = 6.

Option C:

x² + 8 ÷ (y - 2)

=> 2² + 8 ÷ (4 - 2)

=> 4 + 8 ÷ 2

=> 4 + 4

=> 8 ≠ 6

This answer does not equal 6.

Option D:

x² + 8 ÷ y - 2

=> 4 + 8 ÷ 4 - 2

=> 4 + 2 - 2

=> 4 ≠ 6

This answer does not equal 6.

So, after verifying all our options, we can conclude that Option B is correct. Therefore, Option B is the correct answer.

I dont understand nothing for math because they teach us hard ways to do it even tho that's how u actually have to do it

Answers

Answer:

First Picture: A

Second Picture: C

Third Picture: B

Forth Picture: C

Fifth Picture: C

Step-by-step explanation:

The order is ACBCC and if it’s not I’m sorry

... i need help again....

Answers

I hope you can read it for some reason it didn’t let me add more then one photo it’s been a while since I have done this math hope this helps ^^

[tex]\sqrt[3]{488+24} \\[/tex]

Answers

Answer:

8

Step-by-step explanation:

First, add the values inside the radical

488+24 = 512

[tex]\sqrt[3]{512}[/tex] = x

This means that: [tex]x^{3}[/tex] = 512

Therefore, x must be equal to 8.

[tex]\sqrt[3]{512}[/tex] = 8

Lin rode her bike 2 miles in 8 minutes. She rode at a constant speed. Complete the table to show the time it took her to travel different distance at this speed.

Answers

0.25 for the distance and 4 for the elapsed time
4 for the time and 0.25 for the distance

What is the height of this triangle when the base is 10cm

Answers


Follow lyricalcosplays on TikTok!! xxxx

Oh and the answer is 7

Answer:

I think it would be 7

Step-by-step explanation:

dont quote me on it though.

The table below shows that 1 day equals 24 hours. Notice that 12 hours is one-half of that. Use the table to help you determine how many days are equal to 42 hours. 1 day 24 hours 12 hours 12 hours (3 points) a 1 and 1 over 4. days b 1 and 1 over 2. days c 1 and 3 over 4. days d 2 days

Answers

Answer:

42 hours is 1 and 18 hours. 42 hours, there are 12 hours 3 R 6  times.

Step-by-step explanation:

42 diviended by 24 is 1 R18.

Then 42 diniended by 12 is 3 R 6.

Answer is “A” because you multiple 12 x 2

I need help please! 35 points to who ever can solve it, no links please.

Answers

Answer:

2. -2

2b. 28

2c. I'm confused

3. >

b. <

c. >

d. =

from e to j, I have no idea

Step-by-step explanation:

I hope this helps :)

Are you asking for all of them or just certain ones?

3/4% of 170 Please write helpful answer

Answers

Answer:

1.275

Step-by-step explanation:

Answer:

1.275 I hope this is a helpful answer  if this helps or not

Step-by-step explanation:

How do you find the area's square root?

Answers

To find a square root you have to determine the greatest number multiplied by the same number to find the square root for example the square root of 4 would be 2 since if you multiply 2x2 you get for which 2 is the greatest number that can be multiplied by 2 and get 4

Jessie typed the first 300 words of her essay in 12 minutes. She then got tired and typed the remaining 300 words of her essay in 15 minutes. what was the average speed of Jessie's typing?

Answers

Answer:

22,22 min

Step-by-step explanation:

Answer:

22.5 words per minute

Step-by-step explanation:

To find the average, you add the words per minute together then divide by two.

300/12+300/15= 45/1

22.5 words per minute

Item 4
Solve.

x2=−0.73

What is the solution to the equation?

Enter your answer as a decimal in the box.

Answers

Answer: 0.

Step-by-step explanation:

Move terms to the left side

2

=

−

0

.

7

3

x^{2}=-0.73

x2=−0.73

2

−

(

−

0

.

7

3

)

=

0

The answer is
-0.365

so this is for khan academy and I would really like some help with it :)

Answers

Its slope so itll be 4/2 and thats 2

y/x=2

Step-by-step explanation:

Because y=2 and x=4, we would do 4 divided by 2 (2/4=y/x) To get 2

can you help me out??

Answers

Answer:

80Nm?

Step-by-step explanation:

80nm should be correct

Solve: 14+(5x-7)=19+3x

Answers

The answer is x=6, have a good day!

Answer:

[tex]x=6[/tex]

Step-by-step explanation:

First let's put our equation

[tex]14+(5x-7)=19+3x[/tex]

Let's drop our parenthesis

[tex]14+5x-7=19+3x[/tex]

Subtract 3x from both sides

[tex]14+2x-7=19[/tex]

Simplify

[tex]7+2x=19[/tex]

Subtract 7 from both sides

[tex]2x=12[/tex]

Divide both sides by 2

[tex]x=6[/tex]

brainliest please :)

Solve the photo please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

75x + 15= 15(5x+1)
150x + 15= 15(10x + 1)
225x + 15= 15(15x+1)
300x + 15= 15(20x+1)

Hope this helps, sorry if I was to late

which expression represents the area of the shaded rectangle (Will earn 50 points and if answer correct then will earn Brainliest)

Answers

Answer: The fourth expression :)

( 7/8 × 1/3 sq ft)

Hope this helps :]

P.s. Can you mark me as the brainliest? <3

giving brainless out get it right

Answers

Answer:

97.5

Step-by-step explanation:

Supplementary angles always add up to 180.

180 - 82.5 = 97.5

Answer:

97.5

Step-by-step explanation:

180-82.5=97.5

Supplementary means they add up to 180 degrees.

So just subtract 82.5 from 180. You get 97.5

I want that brainliest O^O

Can y’all HELPPPP MEEEEEEE PLEASEEEEE

Answers

Answer:

The answer is the second one

Step-by-step explanation:

Like and give 5 star rating

Answer:

the 2nd one

Step-by-step explanation:

Answer the question below

Answers

point slope form y + 2= 3(x - 1)

Answer:

y+2=3(x-1)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-2)=3(x-1)

y+2=3(x-1)

Which of the following statements concerning the linear correlation coefficient are true?

I: If the linear correlation coefficient for two variables is zero, then there is no relationship between the variables.
II: If the slope of the regression line is negative, then the linear correlation coefficient is negative.
III: The value of the linear correlation coefficient always lies between –1 and 1.
IV: A linear correlation coefficient of 0.62 suggests a stronger linear relationship than a linear correlation coefficient of –0.82.

I and IV

II and III

I and II

III and IV

Answers

Answer:

I and IV... ig (:

I and IV because i’m very extremely intelligent

Help please I'm tired and I just need help with this one

Answers

Answer:

My answer would be y=x times 4 because every 4 packs of honey you get, the number goes up times 4.

Example: 4x4=16, 8x4=32

Hopefully that explains it.

y=x•4 because i said so

A rectangular community swimming pool is 31 2/3 meters long and 7 1/5 meters wide. The area around the swimming pool is covered with tiles. The area covered with tiles is 25% of the total area covered by the swimming pool. The total cost of the tiling is $712.50. What is the cost of the tiling per square meter?

Answers

Answer:

$12.50

Step-by-step explanation:

First, we find the area: 31 2/3 * 7 1/5 = 95/3 * 36/5 = 3,420/15 = 228 square meters. Then, we find the part that the tiles cover: 228 * 0.25 = 57 square meters. Now, we find the cost of the tiling per square meter by dividing the total cost by the total amount of tiling: $712.50 / 57 = $12.50. $12.50 will be your answer.

Tell me if I'm wrong :)

Select the locations on the number line to plot the points −6 , −12 , and −16 .

Answers

count backwards so -6 would be infront of -5 cause 5,6 then count 6 ahead from where -6 is then count 4 ahead from where -12 is
i’m not good at explaining sorry!

Move to the left side, if the number is negative.

The given integers are −6 , −12 , and −16.

What is number line?

In math, a number line can be defined as a pictorial representation of numbers on a straight line. The numbers on a number line are placed sequentially at equal distances along its length. It can be extended infinitely in any direction and is usually represented horizontally.

Now, the given integers  −6 , −12 , and −16 can be plotted as given below.

Therefore, move to the left side, if the number is negative.

To learn more about the number line visit:

https://brainly.com/question/13425491.

#SPJ2

Answer this question, and I will give brainleast.

Answers

Answer:

24/25

Step-by-step explanation:

The answer is 24/25

Can like someone help me with O.o.O (order of operations)

Show your work please...thats why I provided a ton of space.

Answers

Answer:

183

Step-by-step explanation:

168+2^3+3^3-20=

Exponents

168+8+27-20

Addition

203-20

Subtraction

183

183 is the answer.

Answer:

10

Step-by-step explanation:

Using the process PEMDAS I got the answer 10.

168÷2^3+3^3-20

There are no parentheses so you solve the exponents first.

168÷8+9-20

Next, we do not multiply which makes division our second step.

This gives us 21+9-20.

Now we add 21+9 which gives us the sum of 30.

30-20 is equal to 10.

This is how I got my answer and I really hope this helps you

|-4| - 8 + 10 = ???
answer for points

Answers

The answer is 6 because you have to find the value

[[Please Explain]] The equation y - 2/3 = -2 (x - 1/4) is written in point-slope form. What is the equation in slope-intercept form? ³
O y = -2x - 1/6
O y = -2x + 7/6
O y = -2x + 5/12
O y = -2x - 11/12

Answers

Slope-intercept form is just solving for y in point-slope form

y - 2/3 = -2 (x - 1/4)

First you distribute the -2 because it is the first order of operation

y - 2/3 = -2x + 1/2

Then you add 2/3 on both sides because we want to isolate y

y = -2x + 1/2 + 2/3

Then we combine like terms

y = -2x + 7/6
B (second choice) is the answer
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