Determine if -81.42 is rational or irrational. If it is rational, write the number as a ratio of two integers.​

Answer:

Step-by-step explanation:

weight = (volume of block - volume of slots) x density of block

           = (30 * 20 * 9) - (2 x (10 * 8 * 9)) x 1.7

            = (5400 - 1440) x 1.7

           = 8,568

Volume is a three-dimensional scalar quantity. The correct option is D, 8568 grams.

A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.

The volume of the complete block is,

Volume = 36 cm x 20 cm x 9 cm = 6480 cm³

The volume of the opening is,

Volume of the opening = 2 × 10 cm x 8 cm × 9cm = 1440 cm³

Therefore, the weight of the cement block to the nearest gram is,

Weight = (6480 -1440)cm³ × 1.7 gram/cm³

            = 8568 grams

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Answer:

one solution the solution being ×=7/2

Step-by-step explanation:

one solution

Answer:

y = 2/3x - 9

Step-by-step explanation:

Slope-Intercept Form: y = mx + b

m - slope

b - y-intercept

Step 1: Define

Point (9, - 3)

2x - 3y = -6

Step 2: Rewrite given equation

-3y = -2x - 6

y = 2/3x + 2

So our m = 2/3 (Parallel lines have the same slope but different y-intercepts)

Step 3: Find y-int of parallel line

y = 2/3x + b

-3 = 2/3(9) + b

-3 = 6 + b

b = -9

Step 4: Write parallel line equation

y = 2/3x - 9

The 3 answers are 2,4,8

a. 8 can be written as 2^3== (2^3)^1/3,

would be cancelled and answer is 2

b. (2^3)^(2/3), 3 is cancelled.

2^2= 4

c. 16 can be written as 2^4

(2^4^(3/4), 4 is cancelled,

2^3 = 8

Answer:0.8

Step-by-step explanation:To write 24/30 as a decimal you have to divide numerator by the denominator of the fraction. We divide now 24 by 30 what we write down as 24/30

Answer:

First off, we'll interpret the fraction bar to mean "divided by." This means that 24/30 is the same as 24 divided by 30. Second, you have requested to see 3 decimal places in your answer, so we'll write the 24 as 24.000 instead (a 24 with 3 zeros after the decimal point

Answer:

5 meters

Step-by-step explanation:

below sea level:negative

above sea level :positive

-2 meters + 7 meters = 5 meters

Amsterdam is 5 meters higher than Lammefjord.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.

It is given that the city of Amsterdam is 2 meters below sea level. Lammefjord, a city in Denmark is 7 meters below sea level.

Let's understand the sign convention:-

Below sea level: negative

Above sea level: positive

The level is calculated below as:-

-2 meters + 7 meters = 5 meters

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Answer:

J. All real numbers

Answer:

2 multiplyed  + 3.

[tex]\frac{237}{100}[/tex]

Hi there !

2.37 = 237/100

Good luck !

Answer:

x = 6.5

Step-by-step explanation:

5(x−2)+3x−4= 38

5 times x, 5 times -2 =

5x - 10 + 3x - 4 = 38

Combine like terms

5x + 3x = 8x

8x - 10 - 4 = 38

Add 10

8x -10 +10 -4 = 38 +10 =

8x -4 = 48

Add 4

8x -4 +4 = 48 +4

8x = 52

Divide by 8

8x/8 = 52/8 =

x = 6.5

Answer:

C

Step-by-step explanation:

First, you have to find the fraction for yellow. To do that, combine the other fractions by converting them to all have a denominator of 12. Once you do this, you know that yellow is 1/4, making the answer 48.

Answer: C. 48

Step-by-step explanation: Because Imm smart, Also can you give me brainliest it will help much appreciated

Answer:

I think 2 if it is right then follow me

Answer:

5 Nickels = 25 Cent Quarter  

10 Nickels = Half a dollar

Step-by-step explanation:

Uh, uh, uh, uh

Day and night (what, what)

I toss and turn, I keep stressing my mind, mind (what, what)

I look for peace but see I don't attain (what, what)

What I need for keeps this silly game we play, play

Now look at this (what, what)

Madness to magnet keeps attracting me, me (what, what)

I try to run but see I'm not that fast (what, what)

I think I'm first but surely finish last, last

'Cause day and night

The lonely stoner seems to free his mind at night

He's all alone somethings will never change

The lonely loner seems to free his mind at night (at, at, at night)

At, at, at, at, at, at night

At, at, at, at, at, at night

Hold the phone (what, what)

The lonely stoner, Mr. Solo Dolo (what, what)

He's on the move can't seem to shake the shade (what, what)

Within his dreams he see's the life he made, made

The pain is deep (what, what)

A silent sleeper you won't hear a peep, peep (what, what)

The girl he wants don't seem to want him to (what, what)

It seems the feelings that she had are through, through

'Cause day and night

The lonely stoner seems to free his mind at night

He's all alone through the day and night

The lonely loner seems to free his mind at night (at, at, at night)

Day and night

The lonely stoner seems to free his mind at night

He's all alone, some things will never change (never change)

The lonely loner seems to free his mind at night (at, at, at night)

Day and night

The lonely stoner seems to free his mind at night

He's all alone somethings will never change

The lonely loner seems to free his mind at night (at, at, at night)

At, at, at, at, at, at night

At, at, at, at, at, at night

At, at, at, at, at, at night

At, at, at, at, at, at night

Answer:

Tausha can make maximum 6 bags that has the same number of candy bars and packs of gum in it.

Number of candy bars in each bag [tex]=3[/tex]

Number of packs of gum in each bag [tex]=2[/tex]

Step-by-step explanation:

Given:

Number of candy bars = 18

Number of packs of gum = 12

To find: the greatest number of bags of treats that Tausha can make if each of the bags has the same number of candy bars and packs of gum in it

and number of candy bars and packs of gum in each bag

Solution:

Take H.C.F of 18 and 12

[tex]18=2(3^2)\\12=2^2(3)[/tex]

So,

H.C.F of 18 and 12 is 2(3) = 6

Therefore,

Tausha can make maximum 6 bags that has the same number of candy bars and packs of gum in it.

Number of candy bars in each bag = [tex]\frac{18}{6}=3[/tex]

Number of packs of gum in each bag = [tex]\frac{12}{6}=2[/tex]

Answer:

B, C, D, E, A

Step-by-step explanation:

In order to know you have to get them all to the same form. This means converting all of them to a fraction or decimal. You can convert to whichever you prefer. I will be doing decimals since I find that easiest to understand.

A = 13.5

B = -13.5

C = -3

D = 0

E = 0.135

You can see then that the order is B, C, D, E, A.

382.4 days from 132 days t 110.4 days

Answer:

This is not correct

Step-by-step explanation:

on the right side is 3.2 (x-5) this means that it represents 3.2 * (x-5). You have to multiply (according to the distributive property) 3.2 by x and 3.2 by (-5), so you get 3.2x + (3.2*-5) = 3.2x -16

The left side says 3.2x-5, that is clearly not equal to 3.2x-16.

It is impossible to say that there are infinitely many solutions as there are actually no possible solutions. Set the functions equal so it is:

3.2x-5 = 3.2x-16

solve for x by subtracting the 3.2x from the right side and the left side, then add 5 to both sides to isolate the variable with the other terms.

You get 0=11

That is not true.

Answer:

n² + 12 = p/4

or

n² + 12 = p ÷ 4

Step-by-step explanation:

The number n is squared, and you have to add 12 to complete the equality. So n squared plus 12 will equal p divided by 4.

Answer:

y=2.5x-7

Step-by-step explanation:

First, 5x - 2y = 4

   =>      - 2y = 4 - 5x

                 y = 2.5x -2

Since the line we want to know is parallel to the given one,

its slopw would be 2.5 as well

so let the line passes through the point (2,-2) be y=2.5x+a

then 2.5* 2 +a = -2 => a = -7

Final answer: y=2.5x-7  

y=5/2x-7  is equation of the line that passes through the point (2,-2) and is parallel to the line 5x – 2y = 4.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

Given that, a line is passing through (2,-2) and is parallel to  line 5x – 2y = 4.

We need to find the equation of other line.

We need to write the equation of line in slope intercept form.

5x – 2y = 4

-2y=4-5x

2y=5x-4

y=5/2x-2

The slope of line is 5/2

Since the line we want to know is parallel to the given one,

If two lines are parallel then slope of two lines will be parallel.

So the slope of line passing through (2, -2) should be 5/2.

let the line passes through the point (2,-2) be y=5/2x+c

then 5/2(2) +c = -2

c=-2-5

c=-7

Equation of line parallel to 5x-2y=4 is y=5/2x-7  

Hence y=5/2x-7  is equation of the line that passes through the point (2,-2) and is parallel to the line 5x – 2y = 4.

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_________________________________

The sum of the angles of each n-sided figure is found in the following equation :

[tex](n - 2) \times 180 [/tex]

The question's figure is 5-sindes figure

so the sum the angles equal :

[tex](5 - 2) \times 180 = 3 \times 180 = 540 \\ [/tex]

So we have :

[tex]90 + 107 + 144 + 138 + x = 54 0 \\ [/tex]

[tex]479 + x = 540[/tex]

Subtract the sides of the equation minus 479

[tex]x = 540 - 479[/tex]

[tex]x = 61[/tex]

And we're done.

Thanks for watching buddy good luck.

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Answer:

5:2

It actually it is!

look female  5          male    2

                          5  :   2

female to male

(5)         (2)

5 to 2

Step-by-step explanation:

Do you get it now?

Pls consider giving my answer Brainliest! It would mean and help a lot! ; )

Answer:

5:2

Step-by-step explanation:

The answer is 5:2 because:

1) Since there are 2 male teachers for every 5 female teachers, the ratio has to be 5:2 because they did not give us any specific numbers.

For example, if they 10 female teachers, then there would be 4 male teachers. The ratio for this example would be 10:4

Hope this helps! :D

Answer: candle burns down 1 cm per hour

Step-by-step explanation:

Answer:

d.

Step-by-step explanation:

Answer:

60 percent

Step-by-step explanation:

every 4 jerseys is 20%

Answer:

f(-2) = -7

Step-by-step explanation:

f(-2) = 2(-2) - 3

f(-2) = -4 -3

f(-2) = -7