Внешний диаметр полого шара равен 16 см. Толщина стенок 2 см Найти
объем материала, из которого изготовлен шар.

Answers

Answer 1

Answer:

Внешний радиус

Тогда внутренний радиус

Объем материала равен разности объемов внешнего и внутреннего шаров, то есть

Answer 2

Answer:

1239.25 cm³

Step-by-step explanation:

Outer diameter 16 cm

⇒ R= 8 cm

Inner radius  

⇒ r= R- 2= 6 cm

The volume of the wall of 2 cm thickness:

⇒ 4/3πR³- 4/3πr³= 4/3*3.14*(8³-6³)= 1239.25 cm³


Related Questions

Which expression has a value of StartFraction 1 Over 36 EndFraction? (StartFraction 1 Over 108 EndFraction) cubed (StartFraction 1 Over 9 EndFraction) Superscript 4 (StartFraction 1 Over 6 EndFraction) squared (one-half) Superscript 5

Answers

Answer:

(1/6)^2

Step-by-step explanation:

We want to find the fraction that is equivalent to 1/36.

Let us look at each of them individually:

a. [tex](\frac{1}{108})^3 = \frac{1}{1259712}[/tex]

b. [tex](\frac{1}{9})^4 = \frac{1}{6561}[/tex]

c. [tex](\frac{1}{6})^2 = \frac{1}{36}[/tex]

d. [tex](\frac{1}{5})^2 = \frac{1}{25}[/tex]

Therefore, the correct answer is c.

Answer:

1/6 to the second power, which is the third option.

Step-by-step explanation:

I took the test.

50 POINTS!! Use these four expressions to make a hypothesis about the closure property of integers under each operation. Select yes or no for each operation.

Answers

Answer:

+ closed

- closed

* closed

÷ not closed

Step-by-step explanation:

When you add integers, you will always get an integer so it is closed under addition

When you subtract integers, you will always get an integer so it is closed under subtraction

When you multiply integers, you will always get an integer so it is closed under multiplication

When you divide integers, you will not always get an integer so it is not closed under division

1/5 = .2 which is not an integer

Answer:

1. Yes

2. Yes

3. Yes

4. No

Step-by-step explanation:

The expression -8 + 5 shows the sum of two integers. This expression has a value of -3. Because -3 is also an integer, the set of integers appears to be closed under addition.

The expression 9 − (-11) shows the difference of two integers. This expression has a value of 20. Because 20 is also an integer, the set of integers appears to be closed under subtraction.

The expression 3 · (-4) shows the product of two integers. This expression has a value of -12. Because -12 is an integer, the set of integers appears to be closed under multiplication.

The expression, -1 ÷ 6, shows the quotient of two integers. This expression has a value -1/6, Because -1/6 is not an integer, the set of integers is not closed under division.

There are 3 yellow marbles and 8 silver marbles in a bag. You randomly choose one of the marbles. What is the probability of choosing a yellow marble? Write your answer as a fraction in simplest form.

Answers

Answer:

Step-by-step explanation:

The probability will be number of Yellows divided by the total number of Marbles

Here there are 3 yellows and 11 marbles in total

The probability is

3/11

Don't mention it

There are 3 yellow and youre looking for the probability of picking a yellow out of the bag. So 3+8=11 and you put that into the fraction so it would be 3/11
I hope this helps :)

help me!
solve for w

Answers

Answer:

w = 5 , w = -5

Step-by-step explanation:

w^2 = 25

Take the square root of  each side

sqrt(w^2) = ± sqrt(25)

w = ±5

Answer:-5 or 5

Step-by-step explanation: square root both sides, 5x5=25 and -5x-5 could equal 25

One terameter equals 12 10 meters. One micrometer equals 6 10 − meter. One nanometer equals 9 10 −meter. A. Find the product of one terameter and one micrometer, using only positive exponents. B. Find the quotient of one terameter and one micrometer, using only positive exponents. C. Find the product of one terameter and one nanometer, using only positive exponents. D. Find the quotient of one terameter and one nanometer, using only positive exponents. E. Find the quotient of one nanometer and one terameter, using only positive exponents. F. Find the quotient of one nanometer and one micrometer, using only positive exponents. G. Find the product of one nanometer and one micrometer, using only positive exponents.

Answers

Answer:

a) [tex]x = 10^{18}\,\mu m^{2}[/tex], b) [tex]x = 10^{18}[/tex], c) [tex]x = 10^{21}\,\mu m^{2}[/tex], d) [tex]x = 10^{21}[/tex], e) [tex]x = \frac{1}{10^{21}}[/tex],  f) [tex]x = 10^{3}\,nm^{2}[/tex], g) [tex]x = 10^{3}\,nm^{2}[/tex]

Step-by-step explanation:

a) The product of one terameter and one micrometer is:

[tex]x = (1\,tm)\cdot (10^{12}\,\frac{m}{tm})\cdot (10^{6}\,\frac{\mu m}{m} ) \cdot (1\,\mu m)[/tex]

[tex]x = (10^{18}\,\mu m)\cdot (1\,\mu m)[/tex]

[tex]x = 10^{18}\,\mu m^{2}[/tex]

b) The quotient of one terameter and one micrometer is:

[tex]x = \frac{(1\,tm)\cdot (10^{12}\,\frac{m}{tm} )\cdot (10^{6}\,\frac{\mu m}{m} )}{1\,\mu m}[/tex]

[tex]x = \frac{10^{18}\,\mu m}{1\,\mu m}[/tex]

[tex]x = 10^{18}[/tex]

c) The product of terameter and one nanometer is:

[tex]x = (1\,tm)\cdot (10^{12}\,\frac{m}{tm})\cdot (10^{9}\,\frac{nm}{m} ) \cdot (1\,nm)[/tex]

[tex]x = (10^{21}\,nm)\cdot (1\,nm)[/tex]

[tex]x = 10^{21}\,\mu m^{2}[/tex]

d) The quotient of one terameter and one nanometer is:

[tex]x = \frac{(1\,tm)\cdot (10^{12}\,\frac{m}{tm} )\cdot (10^{9}\,\frac{nm}{m} )}{1\,nm}[/tex]

[tex]x = \frac{10^{21}\,nm}{1\,nm}[/tex]

[tex]x = 10^{21}[/tex]

e) The quotient of one nanometer and one terameter is:

[tex]x = \frac{1\,nm}{(1\,tm)\cdot (10^{12}\,\frac{m}{tm} )\cdot (10^{9}\,\frac{nm}{m} )}[/tex]

[tex]x = \frac{1\,nm}{10^{21}\,nm}[/tex]

[tex]x = \frac{1}{10^{21}}[/tex]

f) The quotient of one nanometer and one micrometer is:

[tex]x = \frac{1\,nm}{(1\,\mu m)\cdot (10^{3}\,\frac{nm}{\mu m} )}[/tex]

[tex]x = \frac{1\,nm}{10^{3}\,nm}[/tex]

[tex]x = \frac{1}{10^{3}}[/tex]

g) The product of one nanometer and one micrometer is:

[tex]x = (1\,nm)\cdot (1\,\mu m)\cdot (10^{3}\,\frac{nm}{\mu m} )[/tex]

[tex]x = 10^{3}\,nm^{2}[/tex]

to change direction by making a to point turn you’ll need to use ___

a- your hazard lights
b- A four-way intersection
c-A parking lot
d- A driveway or alley on the right side of The Road

Answers

The answer is A, your hazard lights

find the coordinates of C' after a reflection across the line
y = 1 and then x = 2. Write in the form (a,b)
Part 5a​

Answers

Answer:  (4,2)

==============================================================

Explanation:

C is at (0,0). Ignore the other points.

Reflecting over y = 1 lands the point on (0,2) because we move 1 unit up to arrive at the line of reflection, and then we keep going one more unit (same direction) to complete the full reflection transformation. I'll call this point P.

Then we reflect point P over the line x = 2 to arrive at the location Q = (4,2). Note how we moved 2 units to the right to get to the line of reflection, and then keep moving the same direction 2 more units, then we have applied the operation of "reflect over the line x = 2"

So we have started at C = (0,0), moved to P = (0,2) and then finally arrived at the destination Q = (4,2). This is the location of C' as well.

All of this is shown in the diagram below.

What is the area of this figure? Use 3.14 for pi.
A. 6.28 ft2
B. 18.28 ft2
C. 22.28 ft2
D. 28.56 ft2

Answers

Answer:

C. 22.28

Step-by-step explanation:

area of square is 4*4 =16

area of half of circle is

(Pi*r²)/2 = 3.14*4/2 = 6.28

16+6.28 = 22.28

Answer:

C. 22.28

Step-by-step explanation:

 4 x 4 = 16 (Pi x r²)/2 = 3.14 x 4/2 = 6.28

16 + 6.28 = 22.28

Find x if 8.4% of x is 420.The right answer will be marked as brainliest and the wrong answer will be reported

Answers

I believe 420 is 8.4% of 5,000. So x= 5,000.

Eight children plan to share 10 pounds of chocolate chips to make cookies.
How many pounds of chocolate chips will each child get?
Represent your answer as a fraction.

Answers

Answer:

10/8 pounds

Step-by-step explanation:

Answer:

5/4 or 1.25 pounds of choclate chips

Step-by-step explanation:

Which of the following is the inverse of the statement "If I do my homework,
then it will snow"?
O A. If I do not do my homework, then it will snow.
B. If it does not snow, then I will not do my homework.
C. If it snows, then I will do my homework.
D. If I do not do my homework, then it will not snow.
SUBMIT

Answers

Answer:

D. If I do not do my homework, then it will not snow.

Explanation:

An inverse of anything is the contrary or opposite of the given statement or idea or anything. And in a way, it is the same as the antonym, opposite or contradictory factor of the given point.

The given sentence/ proposition is-

if I do my homework, then it will snow.

In this sentence, the hypothesis of the homework getting done concludes that it will snow. So, for the inverse of this proposition, the positive nature of the sentence will be turned into a negative one.

Thus, the correct answer will be such that if the homework is not done, then it will also not snow. So, the correct answer is option D.

Answer: it’s D

Step-by-step explanation:

he following shows the height, in inches, of the players on the opening night roster of 2015-2016 New York Knicks.
84, 80, 87, 75, 77, 79, 80, 74, 76, 80, 80, 82, 82
1. What is the median?
2. What is the mean?Show your work.
3. What is the typical height of a Knicks basketball player? Explain.

Answers

Answer:

median = 80 inches

mean = 79.692 inches

typical height = 80 inches

Step-by-step explanation:

Given height

84, 80, 87, 75, 77, 79, 80, 74, 76, 80, 80, 82, 82

arranging the height in increasing order we have

74,75,76,77,79,80,80,80,80,82,82,84,87

no, of terms in the heights = 13

We know

that median for any data set is the middle number, if data is arranged in increasing order of their occurrence.

If the number of terms is odd, then median is (n+1)/2 th term

If the number of terms is even, then median is taken average of  n/2 th term and( n/2 + 1)th term .

________________________________________

since here number of term is 13.

then median will be (13+1)/2 th term

i.e 7th term

as shown above seventh term is 80.

1. What is the median?

answer: Median is 80

_____________________________________

Mean is calculated average of all the terms

mean = sum of all the terms/ number of terms

mean = 74+75+76+77+79+80+80+80+80+82+82+84+87/13

         = 1036/13 = 79.692

Thus, means is 79.692

2. What is the mean?

Answer: Mean is 79.692

3. What is the typical height of a Knicks basketball player? Explain

Answer: Typical height for basket ball player will the height which  is the most commonly occurring height in the group.

The most commonly occurring data in the data set is also called mode.

Since, in this data group 80 inches occurring most number of times i.e 4 times.

Thus, typical height of group is 80 inches.

The sample shows how many items 7 people checked out from a library (2,3,13,2,3,6,2) make a dot plot to show data. What is the range? What is the median?

Answers

Answer:

Range: 11

Median: 3

Step-by-step explanation:

2, 2, 2, 3, 3, 6, 13

Range: Highest value - Lowest value = final answer

Median: the middle number on the data set or the listed numbers.

Range: 13 - 2 = 11

Median: 3

Brainliest question please help me solve this problem plz

Answers

Answer:

V is inside the circle.

Step-by-step explanation:

We work out the radius of the circle which is the distance between K (0,0) and (6, -4).

Radius = √[(6 - 0)^2 + (-4 - 0)^2]

= √(16 + 36)

= √52.

Now find the distance of point V from K(0,0):

= √((√2-0)^2 + (-7-0)^2]

= √(2 + 49)

= √51.

This is less than the radius of the circle, so V lies inside it.

what is the range of this function?

Answers

Answer:

the range of this function is c

it is on the right hand side

Find: P ( Large or Red )​

Answers

Answer: 37/40

Step-by-step explanation: 17+8+12 out of 40 total

A box has the shape of a rectangular prism with height 28 cm. If the height is increased by 0.6 ​cm.
i have nothing to do so add my roblox acccount i might be inactive alot
user- dennisalvez1_alt

Answers

Answer:

The surface area of the box increase by 0.2P (the perimeter of the base multiplied by 0.2)

Step-by-step explanation:

we know that

The surface area of the rectangular prism is equal to where B is the area of the base P is the perimeter of the base h is the height of the prism If the height is increased by 0.2 then The surface area of the box increase by 0.2P (the perimeter of the base multiplied by 0.2)

Answer:

who even plays roblox anymore

Step-by-step explanation:

How long would it take an investment to triple if it earns 1.5% interest, compounded monthly? Round your answer to the nearest hundredth.

Answers

Answer:

73.3 years

Step-by-step explanation:

Use the Compound Amount formula:

A = P(1 + r/n)^(n*t)

Here A = 3P, r = 0.015, n = 12, and so we have:

3 = (1 + 0.015/12)^(12*t).  Find t (in years)

3 = (1.00125)^(12*t)

Take the log of both sides.  We get:

log 3 = (12*t)(log 1.00125), or  0.47712 = (12*t)(5.425*10^(-4)

                                                 0.47712

Solving this for t, we get   t = ---------------------------  =  73.3 years

                                                 (12)(5.425*10^(-4))

what is 5 over 4 equal -4 plus 1 over 4

Answers

Answer:

I think is -0.4375

Step-by-step explanation:

What is the solution to this system of linear equations

Answers

Answer:

the solution is (0,2) to the problem

Which expressions are equivalent to x+x+x+2

Choose 2 answers:

Answers

Answer: I don't know the options but from this situation it is 3x+2 or x=3/2

Step-by-step explanation:

You add all the x together and that's the first option second divide it so x us all by itself

The area of a rectangle is 252 cm², and the length is 3 less than 2 times the width. Find the dimensions of the rectangle.

Answers

Answer:

21cm, 12cm

Step-by-step explanation:

width=x cm

length=2x-3 cm

area= 252cm²

l*b= 252 cm²

(2x-3)(x)=252

2x²-3x= 252

this is how I did it

we need to find the nearest square of the number (it should be lesser than the area)

that is 225, whose square root is 15.

since there is a coefficient to the x², the value of x would be calculate like this 15- (2+1)= 15-3 = 12

x= 12

we can verify it too,

2*(12)² - 3*12=252

288-36=252

252=252

therefore width is 12 cm and width is 2*12-3= 24-3= 21 cm

verify;

21*12= 252

252=252

hence the dimensions are 12 am (width) and 21 cm(length).

Solve. Thank you so much! A picture is there. <3

Answers

Answer:

-8

Step-by-step explanation:

47 = -7x -9

Add 9 to each side

47+9 = -7x-9+9

56 = -7x

divide each side by -7

56/-7 = -7x/-7

-8 = x

the answer to this question is -8

If b = the number of blue bikes, which algebraic expression represents the
phrase below?
the sum of the number of blue bikes and the 9 red bikes
A. b=9
B. b +9
C. b-9
D. b.9
SUBMI

Answers

Answer:

B

Step-by-step explanation:

b = number of blue bikes

9 = 9 red bikes

1. "The sum of," this tells us that the answer will be addition based. Based on this information we can solve the question as there is only one answer with an addition symbol (B)

Please answer correctly!!!!!!!! Will mark brainliest !!!!!!!!!!

Answers

Answer: 30 white  and 20 yellow

the aswer is c and can u place mack it clear

Step-by-step explanation:

What amount of discount does Ethan get.

Answers

Answer:

Step-by-step explanation:

Think about how many boxes he had bought, which totals to over £80 which means he had received an 8 percent discount hope this is right

PLEASE I MARK U THE BRAINIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Estimate the angle measure of the angle below

Answers

Answer:

20 degrees

I know that it is acute, meaning it is less than 90. It is also less than 45 degrees, and is in the middle of 45 to 0 degree interval, so I say it is 20 degrees.

Which statements are true? Check all that apply.

Answers

Answer:

It's (A) and (D) like the person in the comments said. (B) is wrong.

Step-by-step explanation:

Answer:

j2nds 3 rd

Step-by-step explanation:

Please help me out :( I’m so behind :((

Answers

Answer:

[tex]f(4) = \frac{256}{3}[/tex]

Step-by-step explanation:

To find f(4), '4' will need to be substituted in place of 'x'. Therefore:

[tex]f(x)\frac{1}{3} * 4^{x}[/tex] becomes:

[tex]f(4) = \frac{1}{3}* 4^{4}[/tex]

Simplify:

[tex]f(4) = \frac{1}{3}* 256\\ \\f(4) = \frac{256}{3}[/tex]

Therefore, f(4) equals [tex]\frac{256}{3}[/tex]

look at photo and answer please. thanks!

Answers

Answer:

Function 2.

Step-by-step explanation:

For the first equation, the y-intercept is the 'b' value in the equation

y = mx + b.

In the equation given, b = 5. This is the y-intercept for the equation.

To find the y-intercept, you need to look for the 'y' value at x = 0. Therefore:

In the table, notice that when t = 0, r = 5.25. This is the same as x = 0, y = 5.25. This means that the y-intercept of the table is y = 5.25.

Since 5.25 > 5, function 2 has a greater y intercept.

Other Questions
What is the y-value of the solution to the system of equations?3x + 5y = 17x + 4y = -13-3-125 Please answer correctly !!!!! Will mark brianliest !!! And click on the photo to answer the question !!! What is the slope of a line parallel to the line whose equation is 4x 2y = 7? Which of the following is a difference between leased employees and part-time employees? a. Unlike leased employees, part-time employees are usually covered by benefits from the organization. b. Unlike part-time employees, leased employees are regularly expected to work less than 40 hours a week. c. Unlike part-time employees, leased employees provide considerable scheduling flexibility to the organization that hires them. d. Unlike leased employees, part-time employees reduce the labor costs of an organization. In ASL grammar, the adjective is placedafter the nounat the beginning of the sentenceat the end of the sentencebefore the noun Recognizing Mythical DetailsWhich mythical features are present in "The Beginning of the Maasai"? Select four options.beA B C D E Fcows flying through the air among the dusty cloudsa giant tree connecting the earth and the skya volcano eruptingthe narrator climbing a fig tree as a young girlthe cattle walking down the branches of the fig treethe narrator being the granddaughter of a god during the Cold War , how were the policy of containment and the domino theory related The predetermined manufacturing overhead rate is $10.00 per direct labor hour ($16.00 1.6). It was computed from a master manufacturing overhead budget based on normal production of 8,000 direct labor hours (5,000 units) for the month. The master budget showed total variable costs of $60,000 ($7.50 per hour) and total fixed overhead costs of $20,000 ($2.50 per hour). The actual costs for October in producing 4,800 units were as follows. Direct materials (5,100 pounds) $ 36,720 Direct labor (7,400 hours) 92,500 Variable overhead 59,700 Fixed overhead 21,000 Total manufacturing costs $209,920 The purchasing department buys the quantities of raw materials that are expected to be used in production each month. Raw materials inventories, therefore, can be ignored. a. Compute all of the materials and labor variances. (Round answers to 0 decimal places, e.g. 125.) b. Compute the total overhead variance. GET EASY POINTS AND BRAINLIEST IF YOU ANSWER!!!!!!!!!!! 1)There were 50 people in the Cross Country race: 10% wore red socks 16% wore blue socks 40% wore white socks How many people wore red, blue, and white socks? 2) Six shoes were in a basket: 2 running shoes, 3 fancy shoes, and 1 pair of flip flops. How many different outcomes are there if you randomly choose 2 shoes? How many of those outcomes will include at least 1 fancy shoe? How many of those outcomes include choosing both pairs of running shoes? How many outcomes include the pair of flip flops? 2H2+O2->2H20 How many moles of water can be produced if 8 moles H2 are used In the united states one criticism of globalization is that?A.It gives labor unions too much power.B.it encourages companies to move jobs overseas.C.it causes prices to go up for Americans.D.it leads to lower quality products.Please i need your help thank you. One of the methods forensic investigators use for estimating the age at death of a human, or the age of a living individual (for example for legal reasons or to verify identity) is based on measurement of the biochemical changes in amino acids within the teeth or bones. As bones and teeth age the ratio (R/L) of two amino acids, denoted simply as R and L, increases. The biochemical changes that occur over time in these amino acids follow an exponential law. The age t, in years, can be estimated from (R/L) using the equation t = b0 + b1*LN((1+R/L)/(1-R/L))^(), where LN denotes the natural logarithm (logarithm base e). This Excel file has data on the ratio (R/L) from the teeth of human subjects of known age. 1. Use the data to find the least squares intercept b0 and slope b1 in the equation t = b0 + b1*LN((1+R/L)/(1-R/L))^(). intercept b0 slope b12. While tending to his flower garden, Sherlock Holmes discovers a body buried in his backyard. Forensic analysis yields the value 0.045 for the ratio (R/L). Use the least squares equation to estimate the age of Sherlock Holmes' surprise garden visitor. years 3. Calculate a 95% prediction interval for the age at death of Sherlock Holmes' surprise garden visitor. lower bound upper bound 4. Several years ago a man in Sherlock Holmes's neighborhood mysteriously disappeared. At the time of the disappearance the man was 35 years old. Do you think that this is the body of that man? No Yes Alice invests $15,000 at age 30 from the signing bonus of her new job. She hopes the investment will be worth $30,000 when she turns 40. If the interest compounds continuously, approximately what rate of growth will she need to achieve her goal? Round to the nearest tenth of a percent. Describe how the hunters treat Jack and how he treats them. please help with slope question fast the table shows miles driven by a car and the gallons of gas used to drive those miles. how many miles did the car travel on a gallon of gas? Which is a true statement about a 45-45-90 triangle?O A. Each leg is 3 times as long as the hypotenuse.O B. Each leg is 12 times as long as the hypotenuse.O C. The hypotenuse is 3 times as long as either leg.O D. The hypotenuse is v2 times as long as either leg. Which conversation is an example of interpersonal communication?a.Neitherb.Both 1 and 2c.1d.2 The circle above has an area of 144 pi cm^2. What is the area of the blue sector? Use 3.14 for pi. How do the marvels of the world, the various animals, the birds and the object of the space point to the existence of Allah?