PLEASE HELP
A company makes steel rods shaped like cylinders. Each rod has a diameter of 8 centimeters and a height of 20 centimeters. If the company used 28,134.4 cm3 of steel, how many rods did it make?

Answers

Answer 1

Answer:

1,172.3 cm³

Step-by-step explanation:

Find the volume of one rod, then divide the total volume of steel used by the volume of one rod.  The volume of one rod is

V = (πd²/4)h

d = 4 cm

h = 20 cm

Plugin the numbers and get V in cm³, then divide the given total volume of 28,134.4 cm³ by V.  If the result is not an integer, then round down.

Add

20 + 4 = 24

Then

28,134.4 ÷ 24 = 1172.26

Rounded to the nearest 0.1 or  the Tenths Place = 1,172.3

Therefore, 1,172.3 rods will be made per hour.


Related Questions

HAHAHHAHA, im going 2 fail now :D
A 36-foot long rope is tied from the top of a pole to a stake in the ground. If the stake is 17 feet from the base of the pole, find the height of the pole. Round to the nearest tenth if necessary.

Answers

Answer:

Perpendicular = 31.73 ft (Approx)

Step-by-step explanation:

Given:

Length of rope (Hypotenuse) = 36 ft

Base = 17 ft

Find:

Height of pole (Perpendicular)

Computation:

Perpendicular = √Hypotenuse² - Base²

Perpendicular = √36² - 17²

Perpendicular = √1,296 - 289

Perpendicular = 31.73 ft (Approx)

After a class party, Hugo had 3/5 of a bag of candy left over. He decides to split it between himself and 3 friends. How much candy will each person get?

Answers

Each person will get 3/20 or 15% of the bag

Answer:

3/10

Step-by-step explanation:

I did 3/5x1/2=3/10

Leslie's lunch bill is $13.95. She wants to leave a tip that is 15% of the bill. How much tip should she leave?

Answers

Answer:

She would leave a tip of 2.0925 ($2.09)

Step-by-step explanation:

A 747 Airplane is 762 inches tall. How tall is it in feet

Answers

Answer:

The answer is 63.5 feet :)

the airplane is 63.5 feet tall when converted from inches to feet

Solve each equation. 2pts. Show all work.
1. a + 4 = 11

Answers

Answer:

a=7

Step-by-step explanation:

a+4=11

a=11-4

a=7

I NEED THIS ASAP PLS

Answers

Answer:

The Senior Citizens

Step-by-step explanation:

because the adult tickets cost 11 dollars each person the child tikets cost 5.50 each child and the Senior Citizens only cost 5 each person

Can someone do this?

Answers

Yes, no, and yes are the answers respectively.

Graph each of the following. Label the axis of symmetry and the vertex.
y=2x^2-4x+1
y=2x^2+8x+6


Plz help!!!

Answers

Answer:

See below

Step-by-step explanation:

Attached are the two graphs where the blue line represents the axis of symmetry.

Reduce to simplest form.
12/11 - (-2/3)

Answers

Answer:

58/33

Step-by-step explanation:

hope i could help yk

Find the value of x. Write your answer in simplest form. need help quick pls

Answers

Answer:

The value of x is approximately 5

Step-by-step explanation:

Answer:

x=6.36

Step-by-step explanation:

In a right triangle where the angles are 45, 45 and 90, the hypotenuse is equal to [tex]\sqrt{2}[/tex] multiplied by the length of the legs. Knowing this, we can set up the following equation:

[tex]9=x\sqrt{2}[/tex]

Multiply both sides by [tex]\sqrt{2}[/tex]

[tex]9\sqrt{2} =x\sqrt{2}*\sqrt{2}\\9\sqrt{2} =2x[/tex]

Divide both sides by 2

[tex]\frac{9\sqrt{2}}{2}=\frac{2x}{2}\\\frac{9\sqrt{2}}{2}=x[/tex]

[tex]x=6.36[/tex] (this answer is approximate)

Therefore, x is equal to 6.36.

I hope this helps!

Massa says that 540 = 6 = 9. Is he right? Explain how you know using an equation.

Answers

Answer:

i think you have written wrong equation

Step-by-step explanation:

This is my question
Please Help Me!

Answers

for this you do Pythagorean theorem so
7^2+12^2=x^2
49+144=x^2
193=x^2
x=squareroot193
so you put 193 in the green box.
hope this helped❤️

Answer:

x=\|193

Step-by-step explanation:

Let us factorise the following alg
x4/16-y4/81

Answers

Step-by-step explanation:

this way we get value of x and y

hope it helps ☺️☺️

if u like give thanks

Find the sale price of a $15 item after a 20% discount.

Answers

Answer:

12

Step-by-step explanation:

find 20% of 15 and then take that away from the 15

What you would do is X/15 and 20/100 Now cross multiply so x100 = 15 x 20 15 x 20 = 300, but you need to have x by it self so 300/100 = 3

Hope I said everything right and make sure to double check my math. Have a great day!

Helpppp please !!

Which equation best represents the graph shown above?

Answers

Answer:

B

Step-by-step explanation:

Choose an x point. Then plug it in and see if you get the correct y.

For example, I chose an x point of -1. When x = -1, you can see that y = 4.

Plug it in to the equations, and you find that B is correct.

y (4) = [tex]x^{2}[/tex] (-1 x -1) - 2x ( 2 times -1) + 1

4 = 1 - (-2) + 1

4 = 1 + 2 + 1

4 = 4

Please I need actual help with these!!!! I will mark brainliest if right! Please don't answer if you don't know it!!(I will report)

Answers

Answer:

Step-by-step explanation:

first pic

Statement.                     Reasons

1. AC is congruent to     1.Given

  HF

2.BC is congruent to.     2. Given

FE

3. Measure angle ACB.   3. Right angles are congruent

is congruent to Measure

angle HFE

4. Triangle ABC is

congruent to Triangle HEF 4. SAS, side angle side

second pic

statement.                          reason

1.Angle K is congruent       1. Given

to angle M

2.KL equals ML.                  2. Given

3.Measure angle KLJ.         3.Vertical angles are congruent

is congruent to Measure

angle MLP

4Triangle JKL is congruent.  4. ASA, angle side angle

to triangle PML

third pic

statement.                    reason

1. Already stated.          1. Already stated

2 PT congruent to RS.   2. Given

3. Angle PQT congruent 3. Verticle angles are congruent

to Angle RQS

4. trianlge PQT is congruent to Triangle RQS.  4. ASA, angle side angle

( hope this helps! )

the first picture is the answer

for number 1, if you look in the upper left hand corner, you will have the answer for the first statement

What is the area of this triangle?
A=bh2


a-54 cm²

b-90 cm²

c-108 m²

d-216 m²

Answers

Answer:

a

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

Here b = 9 and h = 12 , then

A = [tex]\frac{1}{2}[/tex] × 9 × 12 = [tex]\frac{1}{2}[/tex] × 108 = 54 cm²

It’s a because 12x9=108 then divide it by 2 and you have 54

help help please thanks

Answers

Answer:

x = 16

4x = 64

Step-by-step explanation:

The sum of the exterior angles of any polygon is 360°

Add the given angles and solve for x

93 + 46+ 3x + 62 + 4x +47 = 360

7x + 248 = 360

7x = 360 –248

x = 16

4(16) = 64

-2(-6x+2u-3)
-3x-6(-6y+6x)-2y
-3(w+6)+5w

PLEAZE SIMPLIFY THEESE FOR ME ASAP please i need this really bad :(
pleze help i will like it so you can get more pints plzzzzzzzz :(

Answers

Answer:

12x-4u+6-3x+36y-36x-2y-3w-18+5w= -27x-4u-12+34y+2w

I can't belive i am answering this instead of doing my homework

Step-by-step explanation:

Which value of p makes the inequality p > 12 true?

Answers

Answer:

Any value over 12

Here are some examples: 13, 14, 15, 20, 25, 40, 100, 123, 2930

Step-by-step explanation:

PLEASEEEE HELP!!!☹️☹️ i will mark brainliest

Answers

Z=110 because if you add up all the angles inside the triangle it would =180 and take the angle by z and subtract it from 180 you get your answer

How can you graph a linear function?

Answers

Answer:Choose a minimum of two input values.

Evaluate the function at each input value.

Use the resulting output values to identify coordinate pairs.

Plot the coordinate pairs on a grid.

Draw a line through the points.

Step-by-step explanation:

what is 1/4 x 3/7 plzz

Answers

1/4 x 3/4 =3/28 or 0.10714285714 in decimal form

Combine like terms. Your answer should contain decimals. 0.5(x4 − 9) + 15 = Please in 10 mins please

Answers

Answer:

x ≈ ±2.1407

Step-by-step explanation:

0.5(x⁴ - 9) + 15 = 0

Distribute the 0.5 across the parentheses.

0.5x⁴ - 4.5 + 15 = 0

Combine the constants.

0.5x⁴ + 10.5 = 0

Subtract 10.5 from both sides.

0.5x⁴ = -10.5

Divide both sides by 0.5.

x⁴ = 21

Take the fourth root of 21.

⁴√21 ≈ ±2.1407

x ≈ ±2.1407

i don’t I understand please help

Answers

Okey.but where is your question
The answer for the first one is y=-1/2x+4, you can find this by graphing it and finding the slope by using rise over run and once you have the slope you can plot the rest of the points to find the y-int. For the other one it is y=-3x+8. I also really suggest using the Desmos graphing calculator online, you got plot the points and then once you have an answer you can check it by plugging in the equation.

James wants to build a frame around a circular clock like the one shown. He is trying to determine how much material he needs to wrap around the clock. Determine the circumference if the radius is 12 inches. Round your answer to the nearest tenths. Use ≈3.14.

Answers

Answer:

22

Step-by-step explanation:

Just did it

If a jacket costs $65.49 and it will be marked up 30%, what is the selling price?

Answers

$85.37 I think?
I’m not 100% so good luck

2x+2y+2x+2y+2x+2y+2x+2y+2x+2y+2x+2y
eh...

Answers

Answer:

6x + 6y just add all the 2x then 2y

Answer:

12x+12y= 24

Step-by-step explanation:

24

URGENT!!! A factory process requires 3 steps to finish a product. The steps each have a mean completion time of A= 10 seconds and a standard deviation of o = 5 seconds. The time it takes to complete each step is independent from the other steps. Let T be the total completion time for the 3 steps.

Find the standard deviation of T.

Choose 1 answer:

OT = 15 seconds

Or = 75 seconds

or 15 seconds

or = v75 seconds

Answers

Answer:

d

Step-by-step explanation:

The standard deviation of T is equivalent to 5.

What is standard deviation?In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the values are spread out over a wider range.Mathematically, we can write -

       [tex]$\sigma={\sqrt {\frac {\sum(x_{i}-{\mu})^{2}}{N}}}[/tex]

Given is that a factory process requires 3 steps to finish a product. The steps each have a mean completion time of A = 10 seconds and a standard deviation of O = 5 seconds. The time it takes to complete each step is independent from the other steps.

We can write that -

5 = √∑(x{i} - 10)²/√3

√∑(x{i} - 10)² = 5√3

(√∑(x{i} - 10)²)² = (5√3)²

∑(x{i} - 10)² = 25 x 3

∑(x{i} - 10)² = 75

Now, we can write that -

σ = √(75/3)

σ = √25

σ = 5

Therefore, the standard deviation of T is equivalent to 5.

To solve more questions on standard devaition, visit the link below -

https://brainly.com/question/23907081

#SPJ5

An uses they equation y= 8.25x to calculate the total cost y in dollars for x posters. How much did she spend on 6 posters?

Answers

well if the equation is y=8.25x it means that you would multiply 8.25 x 6 to get the total cost of the posters.

8.25 x 6 = 49.50

49.50 would be the total cost! I hope this helps!
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