A bead is formed by drilling a cylindrical hole of 2mm diameter through a sphere with an 8mm diameter. Estimate the volume of the bead to the nearest whole?

Answers

Answer 1

Volume of the bead = Volume of the sphere - volume of the cylindrical hole = 242.95 mm³.

What is the Volume of a Sphere and a Cylinder?Volume of a sphere = 4/3πr³Volume of a cylinder = πr²h

Volume of the bead = Volume of the sphere - volume of the cylindrical hole

= 4/3π(4³) - π(1²)(8)

= 268.08 - 25.13

Volume of the bead = 242.95 mm³

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Related Questions

third time posting this question pls help. it's 7 grade maths.pls help i need it​ I give brainlist

Answers

Answer:

Step-by-step explanation:

7) m + 6 > 17

   m > 17- 6

8. 500 + p > 1500

9. Let cost of pencil be 'x' and it is 5 less than y

x < y -5

Cost of pencil and ruler is less than $ 30.

x + y < 30

10. r + 5 > 17

         r > 17 - 5

         r > 12

12.She is spending $ x. So, we have to subtract from $10.

10 -x < 5

Bob swam a total of 250 meters on Monday and Tuesday. On Tuesday, the numbers of meters he swam was 30 less than 3 times the amount he swam on Monday. How many meters did Bob swim on Monday?

Answers

Answer:

Bob swam 70 meters on Monday

Step-by-step explanation:

Let x = Meters swam on Monday

and y = Meters swam on Tuesday

x + y = 250

y = 250 - x

y = 3x - 30

250 - x = 3x - 30

4x = 280

x = 70

y = 180

4x + y = 4
2x + 6y = 24

Which action creates an equivalent system that will eliminate one variable when they are combined?

Answers

Answer:

(There's actually a few ways of solving this, but here's one)

Multiplying the second equation by 2.

EDIT: Because the question says it will eliminate a variable "when combined", implying adding the systems together. The actual correct answer is multiplying the second equation by -2.

(multiplying the second equation by -2 is the actual answer, my apologies)

Step-by-step explanation:

So it's clear that they are referring to the elimination method and not the substitution method for solving systems of equations.

In the elimination method, you subtract 2 equations in the hopes of the elimination of a variable.

If you multiply the second equation, 2x + 6y = 24, by 2, you get, 4x + 12y = 48.

This is helpful because when you subtract this from the first one, you eliminate x.

4x + y = 4

-(4x + 12y = 48)

is

-11y = -44

What is the vertex of the graph of the function f(x) = x2 + 8x − 2 ? (−4, 18) (0, -2) (-8, -2) (−4, −18)

Answers

Answer:

(−4, −18)

Step-by-step explanation:

f(x) = x^2 + 8x - 2

⇒  CONVERT TO VERTEX FORM

≥ f(x) = (x + 4)^2 - 16 - 2

≥ f(x) = (x + 4)^2 - 18

⇒ VERTEX IS AT:

≅ ((−4, −18))

Answer:

The answer is D......

Step-by-step explanation:

Hi can someone may help me with this problem I'm struggling with
ASSP

Answers

Answer:

  see attached

  cost = 33

Step-by-step explanation:

Kruskal's Algorithm is a "greedy" algorithm that adds the next minimum-weight edge to the tree, provided that it does not create a loop.

__

The minimum-weight edge in the graph is DF, with weight 1.

The next minimum-weight edge is GH, with weight 2.

The next minimum-weight edge is AB, with weight 3.

The next minimum-weight edge is EF, with weight 4.

Edge DE is the next lowest-weight, but it creates a loop (DEF), so we ignore it.

BC is the next edge we'll add to our tree.

FG is the next edge we'll add to the tree.

Edge DG creates a loop, so we ignore it.

Edge FH creates a loop, so we ignore it.

CF is the next edge we'll add to the tree. This completes the minimum spanning tree using Kruskal's Algorithm.

Included edges are AB, BC, CF, DF, EF, GF, GH.

The cost of the tree is 3+6+10+1+4+7+2 = 33.

I need help with Biased vs Unbiased

Answers

Answer:

13 a) 12% prefer pumpkin pie

   b) 6.4% prefer pumpkin pie

   c) 80% did NOT prefer raspberry pie

   d) 235 people would be expected to say that their favorite pie is apple

       or blueberry.

14 a) 20% prefer Marlin

   b) 12% prefer Dolphins

   c) 48.33% prefer seahawks or sharks as their mascot.

   d) 116 students would be expected to say that their favorite mascot is a

       Penguin.

15 a) 20% prefer Science fiction

   b) 46 people would be expected to report mystery as their favorite

       genre.

   c) 810 people would be expected to report drama, history, or romance

       as their favorite genre.

Step-by-step explanation:

13.  *There are a total of 125 participants or customers.*

35 people prefer apple pie15 people prefer pumpkin pie.8 people prefer pecan pie.28 people prefer cherry pie.25 people prefer raspberry pie.14 people prefer blueberry pie.

a) 15/125 = 0.12 = 12%

   12% prefer pumpkin pie

b) 8/125 = 0.064 = 6.4%

   6.4% prefer pumpkin pie

c) Since 25 people preferred raspberry pie. 125-25= 100 people did NOT prefer raspberry pie.

    100/125 = 0.8 = 80%

    80% did NOT prefer raspberry pie

d) Out of 600 people, how many would you expect to say their favorite pie is apple or blueberry?

   Apple: 35/125 = 0.28 = 28%

   Blueberry: 14/125 = 0.112 = 11.2%

 

If there were 600 people:

    Apple: 600*0.28 = 168

    Blueberry: 600 * 0.112 = 67.2 (there can't be a 0.2 of a    

                                                        person, so it's rounded to 67)

168 + 67 = 235

235 people would be expected to say that their favorite pie is apple or blueberry.

14. *There are a total of 60 students.*

5 people prefer Penguins.12 people prefer Marlins.9 people prefer Seahawks.14 people prefer Dolphins.20 people prefer Sharks.

a) 12/60 = 0.2 = 20%

   20% prefer Marlin

b) 14/60 = 0.12 = 12%

   12% prefer Dolphins

c) Seahawks: 9/60 = 0.15 = 15%

  Sharks: 20/60 = 0.33 = 33.33%%

   15% + 33.33% = 48.33% prefer seahawks or sharks as their mascot.

d) If there are 1,400 students in the school, how many would you expect to choose the Penguins as their favorite mascots.

   Penguins: 5/60 = 0.083 = 8.33%

 

If there were 1,400 students:

    Penguins: 1,400*0.083 = 116.2 (there can't be a 0.2 of a    

                                                        person, so it's rounded to 116)

116 students would be expected to say that their favorite mascot is a Penguin.

15. *There are a total of 75 people.*

8 people prefer Action.4 people prefer Comedy.16 people prefer Drama.7 people prefer Mystery.10 people prefer Romance6 people prefer Science fiction3 people prefer Biography12 people prefer History9 people prefer Other

a) 6/75 = 0.2 = 20%

   20% prefer Science fiction

b) Out of 500 people, how many would you expect to report mystery as their favorite genre?

   Mystery: 7/75 = 0.093 = 9.3%

 

If there were 500 people:

    Mystery: 500*0.093 = 46.5 (there can't be a 0.5 of a    

                                                        person, so it's rounded to 46)

46 people would be expected to report mystery as their favorite genre.

c) If there are 1,600 people, how many would you expect to report drama, history, or romance as their favorite genre?

   Drama: 16/75 = 0.2133= 21.33%

   History: 12/75 = 0.16 = 16%

   Romance: 10/75 = 0.1333 = 13.33%

 

If there were 1,600 students:

    Penguins: 1,400*0.083 = 116.2 (there can't be a 0.2 percent of a    

                                                        person, so it's rounded to 116)

   Drama: 1,600*0.2133 = 341.28 (there can't be a 0.28 of a    

                                                        person, so it's rounded to 341)

   History: 1,600*0.16 = 256

   Romance: 1,600*0.1333 = 213.28(there can't be a 0.28 percent of a    

                                                        person, so it's rounded to 213)

341 + 256 + 213 = 810

810 people would be expected to report drama, history, or romance as their favorite genre.

Hope this helps!

Find the value of x.

Answers

Answer:x.

Step-by-step explanation:

please help as soon as possible

Answers

Answer:

D, E

Step-by-step explanation:

In the table, r = 3p, and by converse, p = 1/3r. These options are D and E

Answer:

This is not college level stuff.

But the answer is D. r = 3p and E. p =r/3

Step-by-step explanation:

As you can see in the graph, all the r values are 3 times the p values, 9 = 3 x 3, 21 = 3 x 7, 24 = 3 x 8 and  so on. So, the equation is r = 3p. The same is also vice versa, r/3 = p.

i need help pleasse ​

Answers

X= 30

I don’t know if this is correct or not

I need help...you will be mark brainliest if it's right ty ​

Answers

Answer:

Median: 5

Interquartile range: 4

Have an amazing day!

Please rate and mark brainliest!!

I did half the answer but what is e= ?​

Answers

Answer:

See below.

Step-by-step explanation:

e=12c+6

e=12(1)+6

e=12+6

e=18

e=12(2)+6

e=24+6

e=30

e=12(3)+6

e=36+6

e=42

e=12(4)+6

e=48+6

e=54

-hope it helps

find the inverse of f(x)= x-3/2
i dont understand this

Answers

Answer:

the correct answer is shown below

Step-by-step explanation:

hope this helps

which is a better value? 1 pound of apples for 2.15 or 3 pounds of apples for 5.76

Answers

Answer:

From what i've gotten on another answer on brainl It might be 3 pounds of apples for 5.76. On another question i've resarched i've also gotten $7.91.

Step-by-step explanation:

Sorry if none of these answers have helped you.

Answer:

The 2nd offer - 3 pounds of apples for 5.76

Step-by-step explanation:

1. Find the unit price for the 1st offer.

The unit price is 1 pound of apples for $2.15.  <-- given information

2. Find the unit price for the 2nd offer.

We can set up a proportion to find the unit price.

3 pounds / $5.76 = 1 pound / $x

Let x = how much 1 pound of apples are for the 2nd offer

Cross multiply

3 · x = 5.76 · 1

Simplify

3x = 5.76

Divide both sides by 3 to isolate x

x = 1.92 = $1.92 for a pound of apples (2nd offer)

3. Compare the two offers' unit prices.

$2.15   <-- 1st offer

$1.92   <-- 2nd offer

The second offer is the better value because it costs less for each pound of apple.

I hope this helps and please mark me as brainliest!

How many squares with a side of 3 cm can fit in a 12 cm by 3 cm rectangle

Answers

Answer:

4 squares

Step-by-step explanation:

If the rectangle is only 3 cm wide, only one square will be able to fit in a row. Since the square is 12 cm long, 4 squares can fit. This can be found by 12/3 which = 4

4 sq



Hope this helped.

The following list gives the number of pets for each of 14 students.
2
,
0
,
2
,
4
,
4
,
4
,
3
,
2
,
3
,
4
,
1
,
3
,
3
,
2
Find the modes of this data set.
If there is more than one mode, write them separated by commas.
If there is no mode, click on "No mode."

Answers

2,3,4 are the mode of this set of data

Answer:

2,3,4

Step-by-step explanation:

Given data:

2,0,2,4,4,4,3,2,3,4,1,3,3,2

Solution:

Mode = Most often number

There are

4 = two's

1 = zero's

4 = four's

4 = Three's

1 = ones's

Hence the mode is:

2,3,4

~lenvy~

pls i need help asap

what's the area of this figure?

Answers

Answer:

35

area of traingle b xh/2 5x4/2 - 10

area of square lxl - 5x5 -25

add- 35

Answer:

The answer would be 35.

Step-by-step explanation:

The area of the shape would be 35 square centimeters because if we divide the shape into 3 different shapes, a square on the bottom and 2 triangles at the top, we can multiply the square's length and width to get an area of 25. Next, we'll multiply the 2 triangles length of 4 with the width of 5 to get a total area of 20 from both of them, we'll then divide the area of 20 by 2 to get 10. Now add 20 and 10 to get 35.


Create the equation of a circle that has a center at (1,3) and a radius of 4 units.

Answers

The equation of the circle centered at (1, 3) with a radius of 4 units is:

(x - 1)^2 + (y - 3)^2 = 16

How to write the equation of a circle?

For a circle with the center on the point (a, b) and radius R, the equation is:

(x- a)^2 + (y - b)^2 = R^2

In this case, the center is (1, 3) and the radius is R = 4, so the equation will be, so we just replace these in the general equation that we have above.

(x - 1)^2 + (y - 3)^2 = 4^2

(x - 1)^2 + (y - 3)^2 = 16

If you want to learn more about circles, you can read:

https://brainly.com/question/14283575

Composing ________________ is another way to compose two functions

Answers

Answer:

is there any options or answers I could see?

Write an algebraic expression for the following: 17 more than a number.

Answers

[tex]\qquad \qquad \huge \pink {\sf{☁Answer☁}} \\ \\ [/tex]

Let the number be x

Then,the algebraic expression formed is

[tex] \large \purple{ \boxed { \rm{x + 17}}}[/tex]

It states that you need to write it as 17 more than x This means 17 added on to x .

[tex]\purple{\rule{15mm}{2.9pt}} \red{\rule18mm{2.5pt}} \orange{ \rule18mm{2.5pt}}[/tex]

[tex]\sf{\:мѕнαcкεя\: ♪...}[/tex]

Answer:

x+17

Explanation:

Adding more characters. 'A number is x variable, add 17.. x+17

When 58,511 is divided by 21, the quotient is 2,786 R ___.

Numerical Answers Expected!

Answer for Blank

Answers

If you take the answer, 2786 and multiple by 21

You get 58,506

Which if you subtract from 58,511 you would get 5

Which is r

Please help!!!
What is the value of y?
60
45
2V2
Enter your answer, as an exact value in the box
y =

Answers

Answer:

Step-by-step explanation:

Ratio of sides of  45-45-90 triangle =  x : x : x√2

x√2 is the side opposite to angle 90

So, from the picture,

x√2 = 2√2

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

x = 2

Ratio of sides of 30-60-90 tirangle = a : 2a : a√3

Short side that is oppoiste to 30° = a

Side opposite to 60° = a√3

Hypotenuse (oppoiste to 90°) = 2a

a = 2

y =a√3

  y = 2√3

what value makes 3k– 6 < 12 true?

Answers

Answer: Any number smaller than 6

3k - 6 < 12

(Add six to both sides)

= 3k < 18

(Divide by 3 on both sides)

= k < 6

Also a side note that may be helpful in other similar problems: If you are dividing or multiplying by a negative number you have to flip the inequality sign.

Examine the diagram.
What is the m<1?
O 21°
O 42°
O 71°
O 82 °

Answers

Answer:

O 21 your ita not correct

what is the difference of 21 1/4 - 18 2/4​

Answers

Answer:  Difference between 21 1/4 - 18 2/4 =2 3/4

Step-by-step explanation:

You would subtract 21 1/4 - 18 2/4 you would take one from 21 and put it with the 1/4 to make 5/4 and the subtract 5/4 - 2/4=3/4 and 20-18 =2 so 2 and 3/4

what is the interquartile rang of the following data set? 9,30,2,48,42,18,81,5,55,73,11

Answers

30 is the real answer

Write an equation for the graph below in terms of x
Y=

Answers

Y= -3/2x - 1
Because the slope is rise 3 run 2 and the y-intercept is -1

There are caterpillars in two greenhouses. Greenhouse A has 4 times the number of caterpillars Greenhouse B has. A bird came into the two greenhouses and devoured many caterpillars. After the bird ate 41 caterpillars in Greenhouse A and 5 caterpillars in Greenhouse B, both greenhouses have the same number of caterpillars. How many caterpillars did Greenhouse A have in the first place?

Answers

there will be your 1000 caterpillars

Answer:

12

Step-by-step explanation:

4a = b and A-41=b-5

a-41+5=b

a-36 =b

which means a+36 =4a

so 3a=36 and a=12

Determine whether AB¯¯¯¯¯¯¯¯
A
B
¯
is a diameter of the circle. Explain your reasoning.

Answers

Answer: D

Step-by-step explanation:

The shared side and sides AC and AD are congruent, as well as the included angles, so the triangles are congruent. This means that by CPCTC, segments BC and BD are congruent, and thus AB bisects CD. Therefore, AB is a diameter.

Trey will attend a -year college, and he is planning his budget.
Answer the following.
(a) Below is an estimate of all his expenses and sources of funding for his -year college education.
For each, select whether it is an expense or a source of funding.

Expense Funding
Scholarships:


Grants:


Housing and food:


Work-study (part-time job):


Personal expenses:


Transportation:


Tuition and fees:


Books and supplies:


(b) What is the total of his estimated expenses?
(c) What is the total of his estimated funding?
(d) Can Trey expect to have enough money for his education? How much is the difference?

Answers

The examples of funding include scholarship, grants, part time job, etc.

What is funding?

Your information is incomplete as the values aren't given. Therefore, an overview will be given.

The funding are needed to cater for school fees and other necessary fees. They include scholarship, grants, and part time job.

The expenses are books, transportation, housing, books, and food.

Learn more about funding on:

https://brainly.com/question/25887038

please answer! i need it as its important thank you.

Answers

For the first problem, the solution is as follows:
9y-1/2(4y+20)

1.) Distribute the -1/2 into (4y+20).
9y-2y-10

2.) Combine like terms.
7y-10

3.) Final solution!
7y-10

For the second problem, the answer(s) are solutions A & B.

Solution C cannot be correct because the it does not follow linear algebraic rules (PEMDAS). Solution D is also incorrect because the subtraction sign and division sign change, which does not follow any linear algebraic rules (PEMDAS).
Other Questions
Write the rough draft about protecting a species in danger of extinction. Your rough draft should be written in complete sentences in Spanish and include the following requirements: Include saber or conocer to hook your audience. Include verbs in the present progressive tense to state your claim.Include two facts about the animal from the research. Include vocabulary words, phrases, and expressions learned in the course. (help would be greatly appreciated this is due in a few minutes) explain why camouflage and mimicry can increase an organisms fitness As ken went up the path to the childrens group home,he dragged his feet,clinched his fist, and made faces. Everything about his (1)________announced,"You can make me come here, but you can't make me like it." Ken was 11, and he had been relegated to a group home by the court because there seemed to be no other recourse- his mother was an alchoholic, and his father abandoned him. Ken reacted with rancor. His attitude toward the other children was (2)______;he started fights over the smallest matters. His antipathy toward the home was equally obvious. When he was asked, "How are you getting on?'' he would respond with a terse (3)______:"This place sticks." And his attitude toward his schoolwork and his assigned chores was (4)_______; he was so casual about his responsibilities that he was often scolded for being (5)______.One day, though,something happened that bolstered Ken's spirits. A small,quiet boy was being teased by some older kids,while others stood by watching, doing nothing to help. Risking a(n) (6)__________action, ken stood up for the child. When the younger boy thanked him, Ken was (7)___________, saying, "It's okay. It was nothing." After that incident, Ken started to (8)__________more and more into the life of the home. As his anger (9)________(e)d, his (10)_______ friendliness began to appear, and he became more gregarious.Naturally, Ken did not go through a complete metamorphosis. He still got into fights now and then. But he had changed enough to become a happy and well-liked member of the group home Assimilatebelligerentdemeanordenunciationdissipateindolentinherent nonchalantunassumingunilateralwhich word goes with the blank A 1.0 L solution AgNO3(ag) of and Pb(NO3)2(aq) has a Agconcentration of 0.020 M and a Pb2+ concentration of0.0010 M. A 0.0010 mol sample of K2SO4(s) is added to the solution. Based on the information in the table above,which of the following will occur? (Assume that the volume change of the solution is negligible.)No precipitate will form.(B) Only Ag2SO4(s) will precipitate.(C) Only PbSO4(s) will precipitate.(D) Both Ag2SO4(s) and PbSO4(s) will precipitate. A survey of 100 people in New York City, NY found that. The probability that they take the subway each day is 0.85 The probability that they take a Taxi each day is 0.6 The probability that take the subway and taxi each day is 0.55If a person is selected at random, then determine the probability thay they take either the subway or a taxi each day. The thing that most got my attention in reading this debate was _____, because _____. Find the area of the unshaded region.multiple choice group answers 565555530560 Hand-eye coordination is Find the volume of a box that has a length of 8.9 cm, awidth of 4 cm, and a height of 10.6 cm. Melanie invested $9,800 in an account paying an interest rate of 4.5 compounded quarterly. Amelia invested $9,800 in an account paying an interest rate of 4.75 compounded continuously. After 20 years, how much more money would Amelia have in her account than Melanie, to the nearest dollar? 12 ounces for $ 8.09 dollars per ounce ounces per dollar. PQ and QR are 2 sides of a regular 10-sided polygonCan someone please help I've been struggling on this for quite a while. Wanda is eating break fast. which a reasonable time for wanda to be eating? For what value of x does 3^4x=27^x-3?0 -9O-3O 3O 9 How many molecules are in 12.8 moles of CO2?A. 563 moleculesB. 0.291 moleculesC. 2.13 x 10^{-23} moleculesD. 7.71 x 10^{24} molecules In the modern time school is declared as a peace zone area . But school are freguently closed due to the different issue and stracts . In your view what should the local government and society do to make school really a peace zone \ Why did the African American community believe their boycott would succeed in ending bus segregation?Buses lost about a quarter of their business.Buses lost the majority of their business.Buses lost about half of their business. please help me with this;) what is your opinion on policies like nuclear deterrence or mutually assured destruction? This excerpt from The Lightning Thief ends on a cliffhangerthat is, the reader is left wondering what will happen to Percy next. Will he make it to summer camp? Will more unusual things happen to him? Pretend you are the author, and write the next chapter of Percys story. Use details from the text for inspiration.