A steel pipe 100 cm long has an outside diameter of 2 cm and an inside diameter of 1.8 cm. If the density of the steel is 7.8 grams per cm3, what is the mass of the pipe to the nearest gram?

Answer:

x = -27

Step-by-step explanation:

Apply the Distributive Property to 5(x - 4):  5x - 20.  

Then we have 5x - 20 + 3x - 9x + 7.

Combining like terms, we get -x = 7 + 20 = 27, so that x = -27.

Answer:

256

Step-by-step explanation:

Just divide each side by -0.625.

x = 256

Answer:

B

Step-by-step explanation:

Answer:

14 cups

Step-by-step explanation:

20-2.50= 17.50

17.50 = 1.20x

1.20        1.20

x=14.6   or 14 cups

Answer:

Whole number= n

There are infinitely many numbers satisfying this condition. Providing some examples:

Answer:

I cant solve number 1 but I can for number 2

Calculate GCF for each

You can learn how to use the prime factorization method to do this

GCF(12, 18, 40, 45) = 1

So I dont get what the problem is because there are no numbers for #2. So either I dont understand the problem or it is a trick question whereas the answer is UNDEFINED/IMPOSSIBLE.

Answer: 8.46 ✌️

Pythagorean’s theorem

Answer:

y=(x-5)^2 - 6

Step-by-step explanation:

Subtracting the 5 to the x moves the parabola 5 units to the right. Putting the -6 at the end moves the parabola down 6 units.

Answer:

[tex]y=\left(x-5\right)^{2}-6[/tex]

Step-by-step explanation:

I graphed the original parabola and the new parabola on the graph below. I moved the original parabola down 6 and right 5.

Answer:

the y value is 5. (-1,5)

Step-by-step explanation:

first you plug in -1 to the equation where the x is. f(-1)=-2(-1)+3. then solve with a calculator and you will get 5 as your y value. plug the equation in Desmos.

Answer:

the y value is 5. (-1,5)

Step-by-step explanation:

first you plug in -1 to the equation where the x is. f(-1)=-2(-1)+3. then solve with a calculator and you will get 5 as your y value. plug the equation in Desmos.

Answer:

The variance is approximately equal to 5.3

[tex]\text{I don't know your answer choices, but general the first thing}\\\text{you would do is move the x variables to one side or the single variables}\\\text{Doign this will allow you to set up the equation to divide}\\\\\text{You need to find the x value, so having the x values on one side}\\\text{and the one values on the other side will allow you to solve for x}[/tex]

Answer:

The other two co-ordinates are (-3, 5) and (-8, 5).

Step-by-step explanation:

Consider the rectangle ABCD.

A = upper-left coordinates = (-8, 8)

B = upper-right coordinates = (-3, 8)

C = lower-left coordinates

D = lower-right coordinates

Let the side AB form the length of the rectangle.

Compute the distance between the points A and B as follows:

[tex]AB=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]

      [tex]=\sqrt{(-3+8)^{2}+(8-8)^{2}}\\=\sqrt{(5)^{2}}\\=5[/tex]

The length of the rectangle ABCD is 5 units.

The are of ABCD is given as 15 square units.

Compute the breadth of the rectangle as follows:

[tex]\text{Area}=\text{l}\times\text{b}\\15=5\times\text{b}\\b=3[/tex]

So, the breadth of the rectangle is 3 units.

Then from point B, 3 units below would be (-3, 5).

And from point A, 3 units below would be (-8, 5).

The rectangle on the coordinate plane is attached below.

Answer: look downer

Step-by-step explanation: The other answer makes no sense, so here is a better view.

Answer:

Step-by-step explanation:

Let x = no. of books

:

Cost = 12.50x + 54150

:

Revenue = 25x

:

Rev = cost

25x = 12.5x + 54150

25x - 12.50x = 54150

12.5x = 54150

x = 54150%2F12.5

x = 4332 books need to be sold to cover production costs

:

:

Check:

c = 12.50(4332) + 54150

c = 54150 + 54150

c = 108300

:

r = 25(4332)

r = 108300

Answer:

D

Step-by-step explanation:

Pls brainliest!!

Answer:

-4800

Step-by-step explanation:

63 × (– 48) + 48 × (–37)= - 63*48 - 37*48 = (-63-37)*48= -100*48= -4800

Step-by-step explanation:

======> Mathematics <=======

Step-by-step :

= 63 x (-48) + 48 x (-37)

= -3024 + -1776

= -4800

Answer:

- 3c² + c + 3

Step-by-step explanation:

We wish to evaluate

5(2c - 3c²) - 3(- 4c² + 3c - 1) ← distribute both parenthesis

= 10c - 15c² + 12c² - 9c + 3 ← collect like terms

= - 3c² + c + 3

Answer:

w=2

Step-by-step explanation:

A=length times width (A=lw)

w= l-3

A=10

Substituting in, we get:

10= l(l-3)

Now, solve the equation.

10= [tex]l^{2}[/tex]-3l

[tex]l^{2}[/tex]-3l-10=0

(l+2) (l-5)=0 (factoring the equation)

Therefore, l= -2 or 5

Throw out the negative value because a length of rectangle will never be negative.

Now let's solve for width

Remember w=l-3

therefore

(5)-3=2

so, w=2

(honestly, this is easier to just do in your head. But here is the long form math if you happen to run into more complicated problems.)

Answer:

w=2 l=5

Step-by-step explanation: I got it right

Answer:

[tex]\large \boxed{-187}[/tex]

Step-by-step explanation:

The formula for the sum of n terms of an arithmetic sequence is  

aₙ = a₁ + (n-1)d

If a₁ = -40, d = -7, and n = 22

[tex]\begin{array}{rcl}S_{22} & = & -40 + (22 - 1)(-7)\\& = &-40 + 21(-7)\\& = & -40 - 147\\& = & \mathbf{-187}\\\end{array}\\ \text{The sum of the first 22 terms is $\large \boxed{\mathbf{-187}}$}[/tex]

Answer:

The value of x is 25.

Step-by-step explanation:

Given that M is the midpoint of LN. So the distance of LM is equals to MN.

[tex]lm = mn[/tex]

[tex]43 = 2x - 7[/tex]

Then you can solve it :

[tex]2x = 43 + 7[/tex]

[tex]2x = 50[/tex]

[tex]x = 25[/tex]

Answer:

-5.95 on edge

Step-by-step explanation:

The absolute magnitude of a star that has a period of 45 days is -5.95.

magnitude, in astronomy, measures the brightness of a star or other celestial body. The brighter the object, the lower the number assigned as a magnitude. In ancient times, stars were ranked into six magnitude classes, the first magnitude class containing the brightest stars.

Mv = m - 2.5 log[ (d/10)2 ]. Stars farther than 10 pc have Mv more negative than m, that is why there is a minus sign in the formula. If you use this formula, make sure you put the star's distance d in parsecs (1 pc = 3.26 ly = 206265 AU).

Learn more about the magnitude of a star at

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The absolute magnitude of a 45-day star is -5.95.

The magnitude measures the brightness of a star or other celestial body in astronomy. The brighter the object, the lower the number assigned as a magnitude. In ancient times, stars were divided into six magnitudes, the first of which contained the brightest stars.

Mv = m-2.5log [(d / 10) 2]. Stars over 10 pc have a minus sign in the formula because Mv is more negative than m. When using this formula, enter the star distance d in parsecs (1 pc = 3.26 Ly = 206265 AU).

For more information on the size of stars, please see

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Answer:

36

Step-by-step explanation:

2 envelopes x 3 drawers = 6 envelopes.

Each envelope has six stickers.

6 x 6 = 36

Answer:

36

Step-by-step explanation:

240/4=60

1:3

60*3=180

Answer= 60:180

Answer:

60:120

Step-by-step explanation:

You need to add the two parts of the ratio

1+3=4

Then you divide 240 by 4

240 divided by 4= 60

Then you do :

60x1= 60

60x3= 120

There you go, you have your answer.

Answer:47 units

Step-by-step explanation:Gay

Answer:

2,172

Step-by-step explanation:

not too sure sorry

Answer:

184

Step-by-step explanation:

y + j + p + a = 1026

y - 60 = j/4 -------> y =  (j/4) + 60

p + 150 = j/2 -----> p = (j/2) - 150

2a = j -------> a = j/2

y = ?

y + p + j + a = 1026

(j/4) + 60 + (j/2) - 150 + j + (j/2) = 1026

(j/4) + j + j - 90 = 1026

(j/4) + 2j = 1116

9j/4 = 1116

9j = 4464

j = 496

y = (496/4) + 60 = 184

Answer:

99.87%

Step-by-step explanation:

We would be using the Z score formula to solve this question. The formula is given as:

z = (x-μ)/σ,

Where :

x = observed value = 9.4lbs

μ = mean or average value = 7.9lbs

σ = Standard deviation = 0.5lbs

z = (9.4- 7.9)/0.5

z = 3

The z score = 3

Using the normal distribution table to find which percentage of babies would be at least 9.4lbs

P(x<Z) = 0.99865

Converting this to percentage = 0.99865 × 100 = 99.865%

Approximately = 99.87%

Therefore, the percentage of babies would be at least 9.4 lbs = 99.87%

Answer:

-x^2 +x

Step-by-step explanation:

f(x) = 1-x^2

g(x) = 1 - x

f(x) - g(x) = 1-x^2  - (1 - x )

Distribute the minus sign

              = 1-x^2 -1 +x

Combine like terms

             = -x^2 +x

Answer:

-5|0|-7

-6|-4|-2

-1|-8|-3

I'm guessing it is addition

Hope this helps

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

If 2 tangents are drawn to a circle from the same external point then they are congruent.

AG and AE are tangents to the circle from the same external point, thus

AG is congruent to AE

AG is congruent to AE. Then the correct option is D.

In geometry, two figures or objects are said to be congruent if their shapes and sizes match, or if one is the mirror image of the other.

If two tangents are drawn to a circle from the same external point then they are congruent.AG and AE are tangents to the circle from the same external point.

Hence, the correct option is D.

To know more about congruency follow

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Answer:

B.  -4 ≤ x ≤ 1.

Step-by-step explanation:

The function is increasing when the slope of the line is rising to the right.

Each division on the x axis has a value of 2

Answer:

Aaron travelled about 9 feet underwater

Step-by-step explanation:

We need to work with the information we are given in the question.

there are two stages of Aaron's travel. the first distance was in the air, and the second distance was in the water.

We are given both the total distance travelled and the distance travelled in the air.

To get the distance travelled in water, we subtract the distance travelled in the air from the total distance.

This will be 52 feet - 43 feet = 9 feet

Hence Aaron travelled about 9 feet underwater