Mathmatics 8th grade

Mathmatics 8th Grade

Answers

Answer 1

Answer:

A.[tex]\frac{3}{8} , \frac{1}{2} , 1 , \sqrt{2} , 4[/tex]

Step-by-step explanation:

[tex]\frac{3}{8} < \frac{1}{2} \\\\\frac{1}{2} < 1\\\\1 < \sqrt{2} \\\\\sqrt{2} < 4[/tex]

Answer 2

Answer:

A. because the square root of 2 is 1.4 and 1/2 is equal to 4/8 which is bigger than 3/8 so this is the correct order.

Step-by-step explanation:

(Brainliest plz?)


Related Questions

What are the correct answers for this?

Answers

1) variable
2) value
3) absolute value (maybe)
4) natural numbers
5) whole numbers
6) integers

Given: 2x + 3y = 6. When x has a value of zero, the y value is 2.
True
False

Answers

Answer:

True

Step-by-step explanation:

2x+3y=6

2(0)+3y=6

0+3y=6

3y=6

y=2

BRAINLIEST TO THE FIRST 2 TO ANSWER

Answers

Answer:

ab + b²-ac-bc

b(a+b) -c(a+b)

(a+b) (b-c)

Step-by-step explanation:

Answer:

C. (b-c)(a+b)

Step-by-step explanation:

This i s because there is a positive b squared in the expanded equation so both brackets had to have had a positive b term in them.

(b-c)(a+b) expanded:

ab +b^2 -ac -bc

Hope this helped!

(If someone answers fast i will mark you brainliest ) Which ordered pair would form a proportional relationship with the point graphed below? (10, -20) (-30, 20) (-10, 5) (35, -20)

Answers

Answer:

(-10, 5)

Step-by-step explanation:

(10, -20), (-30, 20), (35, -20) ⇒ these points are not on the line, so they don't form a proportional relationship with the graph.

(-10, 5) ⇒ this point is on the line, so it forms a proportional relationship with the graph.

Please tell me if I'm wrong. I might be wrong, but I'm trying my best to help..

Pleaseeeeeee Help meee :(((((
(30 points)

Answers

Answer:

9

Step-by-step explanation:

d=rt

12x45/60

12x0.75

9=d

Answer:

Step-by-step explanation:

12 more than quotient of a number k and 5

Answers

Answer:

(k/5)+12 represents the question described

The required equation is 12 + k/5.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions by connecting them with the equal sign = .

Now the given statement is,

12 more than quotient of a number k and 5

Converting them into numerical form,

quotient of a number k and 5 = k/5

Therefore 12 more than quotient of a number k and 5 is written as,

12 + k/5

this is the required equation for the given statement.

Thus, the required equation is 12 + k/5.

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the average weight of a mature human brain is approximately 1400 grams. what is the equivalent weight in kilograms? and in pounds? I NEED STEP BY STEP

Answers

Answer:

1.4

Step-by-step explanation:

you need to multiply 1400 by 0.001 because 1 gram is the equivalent to 0.001 kilograms

Answer:

1.4

Step-by-step explanation:

Susie starts her hike at 255 feet below sea level when she reaches the end of the hike she is still below sea level at -178 feet what was the change in elevation from the beginning of Susie’s hike to the end of the hike

Answers

Answer:

98 was the change in elevation

Step-by-step explanation:

F(x) = x + 4
G(x) = x^2 + 4
Find (fog) (3)

Answers

Answer: 17

Steps:

1. Plug in (3) into “x” of the g(x) equation:
g(3) = (3)^2 + 4
g(3) = 9 +4
g(3) = 13

2. Plug in g(3) value into “x” of the f(x) equation:
f(g(3)) = x + 4
f(g(3)) = 13 + 4
f(g(3)) = 17

4x3 =
A) 12
B) 35
C) 15​

Answers

Answer:

12

Step-by-step explanation:

4x3=12

The answer is A, 12.

2d + 3 ≤ –11 or 3d – 9 > 15?

Answers

Answer:  d≤-7 and d>8

Step-by-step explanation:

3d - 9 >15 answer is d>8 and 2d + 3 ≤ -11 is d≤-7

Given the data set below, find the mean,
4,8, 21, 9, 12,6
A.
10
B.
8.5
c.
17
D
12.5

Answers

Answer: A) 10
4+8+21+9+12+6=60
60/6= 10
To find the mean, you’ll add all the numbers and then divided be however many there are.

Can someone please check this chart I made for me? ​

Answers

Seems good to me! Have a good day!

Answer:

I think it's great.

Good job!

Solve the equation for the variable.

[tex] - 5.2x + 57.9 = 15.9 + 1.8x[/tex]
x = [?]​

Answers

Answer:

x = 6

Step-by-step explanation:

Given

- 5.2x + 57.9 = 15.9 + 1.8x ( subtract 1.8x from both sides )

- 7x + 57.9 = 15.9 ( subtract 57.9 from both sides )

- 7x = - 42 ( divide both sides by - 7 )

x = 6

Which equation could you use to solve for x in the proportion 4 over 5 = 9 over x ?

Answers

Step-by-step explanation:

4/5 = 9/x

x(4/5)= 9

4/5x = 9

×5/4 ×5/4

x=11.25

list a least two metric units that you can use to measure volume

Answers

Answer:

1-Rectangular prism

2-cube

Step-by-step explanation:

Rectangular prism - Multiply the measurement of the length times the width, then times the height.

Cube - Since all sides are the same measurement, it would be the measurement of any side, or edge, cubed, or a³


Sorry I also need help with this question

Answers

Answer: B

Step-by-step explanation:

(f/g) means to divide f(x) by g(x).

[tex](f/g)(x)=\frac{3x+2}{3x-5}[/tex]

To find the domain, you set the domain equal to zero and solve for x.

3x-5=0                   [add both sides by 5]

3x=5                       [divide both sides by 3]

x=5/3

Now, we know that B is the correct answer.

For f(x)=2x+1 and g(x)=x^2-7 find (f-g)(x)

Answers

Answer:

-x² + 2x + 8

Step-by-step explanation:

Essentially we need to subtract g(x) from f(x):

(f - g)(x) = f(x) - g(x) = (2x + 1) - (x² - 7)

Distribute the negative:

(2x + 1) - x² - (-7) = (2x + 1) - x² + 7

Combine like terms:

2x + 1 - x² + 7

-x² + 2x + 8

Thus, the answer is -x² + 2x + 8.

~ an aesthetics lover

The average hoverboard has a maximum speed of 8 miles per hour. How
many hours would it take Mr. Grigorian to get to school if he lives 18
miles away?

Answers

10 miles because 8+10=18

PLEASE HELP!!! 15 PTS FOR THIS!! (Please show work also) Convert y=3x-14 (slope intercept form) to standard form Convert y-6=-1/3(x-9) (point slope form) to standard form Convert 3x+y=9 (standard form) to slope intercept form

Answers

Answer:

Step-by-step explanation:

y=3x-14

standard  form : 3x-y=14 ( move variable together on one side )

convert y-6=-1/3 (x-9) to standard form :

first : y-6 = -1/3 x -1/3(-9)

y-6=-1/3 x +9/3

y-6=-1/3x+3

y+1/3x =3+6

y+1/3x=9 ( common denominator)

(3y+x)/3=9 ( cross multiplication)

3y+x=3(9)

3y+x=27

Convert 3x+y=9 (standard form) to slope intercept form (y=mx+b)

3x+y=9

y=-3x+9

Help, please find errors!

Answers

Everything looks great. The only issue I see is that 27 is a bit smudged. I think you were trying to say "A, B and E" (in any order you want). If so then that would be the correct answer.

What would it mean if there was an outbreak of cholera? A. The disease has infected a few people spread out over a large distance. B. The disease has spread suddenly and rapidly. C. The disease has been eradicated or erased; it no longer exists. D. The disease has been controlled and is no longer a threat to humans. Please select the best answer from the choices provided A B C D

Answers

Answer:

I think that it is B because its the only answer that makes sense

Step-by-step explanation:

Answer:

Step-by-step explanation:

b

You pay $30 each month for satellite TV, plus $2.50 for every movie you purchase. Write and solve an equation to find the number of movies purchased during a month with a total bill of $45. What is it in an equation and how many movies do you purchase. Im on a timed thing so please be speedy

Answers

Answer:

6 movies

Step-by-step explanation:

45-30=15 spent on movies

divide the 15 by 2.5 to get 6.

$30+$2.50m=$45

where m is the amount of movies

Answer:

let he purchaseed x movies

30 + 2.5x = 45

or 2.5x = 15

x=15/2.5 =6

Step-by-step explanation:

Solve for X X - 24 = 73 Question 6 options: 49 97 47 95

Answers

Answer:

x = 97

Step-by-step explanation:

X - 24 = 73

Add 24 to each side

X - 24+24 = 73+24

x = 97

[tex]\text{Hello! :D}[/tex]

[tex]\large\boxed{x = 97}[/tex]

[tex]\text{x - 24 = 73}[/tex]

[tex]\text{Solve for x by adding 24 to both sides:}[/tex]

[tex]x- 24 + 24 = 73 + 24\\\\x = 97[/tex]

A biologist monitors the growth of molds to better understand how they spread. She begins with a culture of 50 molds in a container that can hold 1,000 cultures. Which model represents this scenario?

Answers

Answer:

D. y = StartFraction 1,000 Over 1 + 19 e Superscript negative 0.6 t Baseline EndFraction

Step-by-step explanation:

edge 2020

(8.91 times 10 Superscript 2 Baseline) (3.3 times 10 Superscript 12 Baseline)

Answers

Answer:

  2.9403×10^15

Step-by-step explanation:

Your calculator can work this out for you.

  [tex](8.91\times10^2)(3.3\times10^{12})=(0.891\times10^3)(3.3\times10^{12})\\\\=(0.891\times3.3)(10^{3+12})=\boxed{2.9403\times10^{15}}[/tex]

__

The applicable rule of exponents is ...

  (10^a)(10^b) = 10^(a+b)

__

Additional comments

You can keep a product the same if you divide one factor by 10 and multiply the other factor by 10:

  8.91×10² = (8.91/10)(10×10²) = 0.891×10³

I like to "pre-scale" the numbers in a problem like this so that the product comes out in scientific notation with no adjustment needed. That is, the product of the two mantissas is a number between 1 and 10.

Here, you can tell the product of 8.91 and 3.3 will be more than 24, so scaling will be necessary. It is convenient to scale the larger mantissa to be less than 1 so the product comes out less than 10. That is why we made it 0.891×10³.

Answer:

 2.9403×10^15

Step-by-step explanation:

i took the unit test

A bakery can make 21 cheesecakes for every 7 blocks of cream cheese. Which table represents the relationship between the number of cheesecakes the bakery makes and the number of blocks of cream cheese the bakery uses? A B Cheesecakes Cream Cheese (blocks) Cheesecakes Cream Cheese (blocks) 21 7 21 7 28 14 24 8 35 21 27 9 с D Cheesecakes Cream Cheese (blocks) Cheesecakes Cream Cheese (blocks) 3 1 3 1 4 2 6 4 5 3 9 7​

Answers

Answer:

it would be D me child

Step-by-step explanation:

what is 63,120,000 written in scientific notation

Answers

6.3120000 × 10^7 I’m pretty sure that the correct answer

Writing a number in scientific notation involves writing the number to the appropriate power of 10. Hence, the number written in scientific notation is [tex]6.312 \times 10^{7}[/tex]

Given the number : 63,120, 000

63,120,000 = 6312 × 10000

6312 = 6.312 × 1000

63,120,000 = 6.312 × (10000) × (1000) = 6.312 × 10000000

We can expressed the value to the power of 10 thus :

6.312 × 10000000 = 6.312 × [tex]10^{7} = 6.312 \times 10^{7} [/tex]

Therefore, the Number written in scientific notation is [tex]6.312 \times 10^{7}[/tex]

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Determine if 0.737337333733337333337... is rational or irrational.

Answers

Answer:

The number 0.737337333733337333337...0.737337333733337333337... is irrational because it is a decimal that does not repeat or terminate

Step-by-step explanation:

it is not repeating or terminating which means it is irrational

The given number 0.737337333733337333337... non-repeating and non-terminating so it will be an irrational number.

What is an irrational number?

Any real number that cannot be written as the quotient of two integers, p/q, where p and q are both integers, is referred to as an irrational number.

In another word, irrational numbers are those numbers that can not terminate.

For example, √2, and √3 are irrational numbers because they cannot be written as p/q where p and q both should be integers.

Given the decimal 0.737337333733337333337... it not repeating and nonterminating so we cannot convert it into the fraction p/q such that p and q both remain integers.

Hence "The given number 0.737337333733337333337... non-repeating and non-terminating so it will be an irrational number".

For more about the irrational number,

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To determine the number of trout in a​ lake, a conservationist catches 132 ​trout, tags them, and throws them back into the lake.​ Later, 22 trout are​ caught; 11 of them are tagged. How many trout would the conservationist expect to be in the​ lake?

The conservationist would expect that there are how many trout in the lake?

Answers

I wish I knew I’m havin trouble
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