Find the volume of a sphere with a radius of 7.8cm.

Answers

Answer 1

Answer:

Step-by-step explanation:

volume of sphere=4/3 π (7.8)³

=4/3π×474.552

=π×4×158.184

=632.736π

≈1987.799 cm³


Related Questions

Solve.
b + 2/9 = 1 3/5

Answers

Exact form
B=107/45
Decimal form
B=2.36
Mixed number form
B=2:17/45

your most exciting day of school​

Answers

Answer:

first day. yehahhhhhhhh

Answer:

School isn't exciting for me, lol.

Step-by-step explanation:

A triangle is shown
A
(2х - 10)
B
(3x)
(4х + 46),
с
Part A: What is the value of x, in degrees?
13.8
ОООО

Answers

Answer:

x = 16

Step-by-step explanation:

First add all of your angles together to get:

9x + 36

Then set that equal to 180:

9x + 36 = 180

Now solve Algebraically:

Subtract 36 from both sides:

9x = 144

Then divide by 9:

x = 16

The reason I set it to 180 is because we know that all triangles angles equal up to be 180° no matter what.

How many people out of 100,000 will survive until age 90?

Answers

Answer:

81.26

Step-by-step explanation:

This amount of people survived until 90 according to an article:

20,898 + 15,034 + 26,183 + 21,196 + 15,318 + 26,479 + 15,864 + 9,952 + 21,357 = 172,281

"172,281" as a percentage is:

81.26

The percentage people out of 100,000 will survive until age 90 would be 81.26.

How to calculate unit price of something?

Unit means 'single entity', the fundamental constructing block. Usually, it is 1 in mathematics and science.

Thus, unit price of something is price of 1 thing.

So, suppose we're taking about price of mangoes, then unit price will denote the price of 1 mango.

The data is given in the image attached below;

We need to find How many people out of 100,000 will survive until age 90.

A percentage is a minimum number or ratio that is measured by a fraction of 100.

The amount of people survived until 90 according to an article:

20,898 + 15,034 + 26,183 + 21,196 + 15,318 + 26,479 + 15,864 + 9,952 + 21,357

= 172,281

Therefore, "172,281" as a percentage is 81.26.

The percentage people out of 100,000 will survive until age 90 would be 81.26.

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GEOMETRY find the angle of PRQ NO LINKS!!

Answers

Answer:

55

Step-by-step explanation:

Remark

This is a really good question to know the answer to. <PRQ = 1/2 POQ (the central angle. )

The central angle for this question is 110o. So any angle that has its vertex on the circumference is 1/2 110 = 55. The central angle and the angle on the circumference must be related as they are as this question is. (Both are on the same side of PQ which is not drawn but you can draw it).

pls answer fast this is my last assignments is giving 30 points and make the brainiest

Answers

Answer:

obama your mama she looks like joe mama

If I get paid $5 for every 10 minutes, how much do I get paid an hour?

Answers

Step-by-step explanation:

30$ hope it helped I don't know if its correct though let me know if I'm wrong

I need help with math

Answers

What do you need help with.

1.5 units
2 units
3 units
3.5 units


Those are the answer options



I need help fast

Answers

Answer:

3 units

Step-by-step explanation:

There are 3 squares between them.

Solve for the area of the triangle in each of the following problems.

Answers

Answer:

area of triangle = 1/2×base×height

area of triangle =1/2×15m×16m

area of triangle =120m²

Please help me.
how many observations are in this data set?

Answers

Answer:

16

Step-by-step explanation:

count the dots. each is one observation

Yep it is 16 the answer

Find the volume of a cone with a base diameter of 10 cm and a height of 9 cm

Answers

Answer:

235.71cm^2

Step-by-step explanation:

Volume of cone = 1/3 pie r^2 h

1/3*22/7*5*5*9

= 235.71cm^2

Volume of a cone is 235.6 cm³.

Why is the volume of a cone?The volume of a cone with height h and radius r is 1/3πr2h, which is exactly one third the volume of the smallest cylinder that it fits inside. This can be proved easily by considering a cone as a solid of revolution, but I would like to know if it can be proved or at least visual demonstrated without using calculus.  

The volume of a cone is calculated the using the formula:

[tex]V = \frac{1}{3} \pi r^{3} h[/tex]

Given,

         height of the cylinder is, h=9cm.

         The diameter of the base is 10cm. r = 5 cm

    put the values into the formula to get -

          V = [tex]\frac{1}{3} * \pi * 5^{2} * 9[/tex]

         [tex]V = 75 \pi[/tex]

Put value of π = 3. 14 ,

          V = 75 * 3.14

           V =  235.6 cm³

Therefore, Volume of a cone is 235.6 cm³.

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Someone help me please!!!Divide 100 in the ratio 2:3.​

Answers

Answer:

pirwvjihpwrugh

Step-by-step explanation:

wrhfuwhfuhugfrifhi

Answer:

not possible

Step-by-step explanation:

It can't be possible because the ratio would be 50:1 is possible

whoever gets this correct first gets brainlest!!

Answers

D. f(x)=4 (5/2)^x

Are really good tool for graphing problems is Demos.com

Cindy works on the weekends at the local coffee shop. Last Saturday she worked 7.5 hours and
on Sunday she worked 8 hours. She earns $9 per hour. How much did she earn last weekend?
F:97.00 G:89.50 H:139.50 J:109.00

Answers

Answer: H. 139.50

Step-by-step explanation:

Multiply 9 by 8 first and you get 72. Then multiply 9 by 7.5 and you get 67.5 then add 72 and 67.5 and you get 139.5 or 139.50


The manager of a restaurant recorded how many people were in different groups of
customers and how much those groups spent on food and beverages. The scatterplot below
shows the data she recorded.

Answers

Answer:

$135

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

hows it goin my boi

Niamh runs 6 km in 30-minutes what is the average speed in km h

Answers

Answer:

12 km/hr

Step-by-step explanation:

The average speed is 12 km/hr.

It is to find the average speed in km /h.

What is speed?

Speed is measured as the ratio of distance to the time in which the distance was covered.

Given that :

Distance covered by Niamh = 6 km

Time =30minutes=30/60hour

=1/2hour

∴ The average speed=Total distance/Total time

The average speed=6*2/1

The average speed=12 km/hr.

So, the average speed is 12 km/hr.

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Which graphs of ordered pairs represent functions?

Answers

Answer:

I thin its b.

Step-by-step explanation:

VERY EASY, WILL GIVE 50 POINTS FOR CORRECT ANSWER ASAP AND WILL GIVE BRAINLIEST.

Answers

Answer: (4,-11)

Step-by-step explanation: To perform a 180 degree rotation we switch the signs of the coordinates

Answer:

4,-11

Step-by-step explanation:

The answer is 4,-11 because if you think that you go over -4 and go up 11. Now switch the negative sign to the y coordinate because it is a 180 degree turn then you have your answer. 4,-11

pls mark as brainliest!!

Write the equation of the line (in point-slope form) that passes through the point (3, -4) and has a slope of 6.

Answers

Answer:

y+4=6(x-3)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-4)=6(x-3)

y+4=6(x-3)

What equals 18 to the third power

Answers

18 to the third power is 5832.

Answer:

5832

Step-by-step explanation:

18 × 18 = 324

324 × 18 = 5832

Find the missing sides

Answers

Answer: x =1/2

y = [tex]\sqrt{3}[/tex]/2

Step-by-step explanation:

A roadside assistance company gets millions of requests per year, with about a quarter of the requests in
summer and a quarter in winter. Suppose that 12% of all of the summer requests and 15% of the winter
requests are for help with a lockout. A data analyst pulls separate random samples of 200 summer and winter
requests and will look at the difference (summer winter) between the proportion of requests for help with
a lockout in each sample.
What are the mean and standard deviation of the sampling distribution of the difference in sample
proportions?

Answers

Answer: -0.03

sqrt ((0.12 (0.88) / 200) + (0.15)(0.85)/200)

Step-by-step explanation:

The mean of the sampling distribution of the difference in sample proportions is -0.03, and the standard deviation is 0.0321.

What is the standard deviation?

A standard deviation (σ) is a measure of the distribution of the data in reference to the mean.

The proportion of lockout help requests in the summer population is 12% or 0.12, and the proportion in the winter population is 15% or 0.15. The sample sizes are both 200.

Using these values, we can calculate the mean and standard deviation of the sampling distribution of the difference in sample proportions:

Mean = p₁ - p₂ = 0.12 - 0.15 = -0.03

Standard deviation = √[ (p₁ (1 - p₁) / n₁) + (p₂ (1 - p₂) / n₂) ]

= √[ (0.12 (1 - 0.12) / 200) + (0.15 (1 - 0.15) / 200) ]

= √[ (0.000504) + (0.000525) ]

= √[ 0.001029 ]

= 0.0321

Therefore, the mean of the sampling distribution of the difference in sample proportions is -0.03, and the standard deviation is 0.0321.

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There are 196 people in
the Snow Bunnies Ski"
Club. They are taking
buses to Colorado
Each bus holds 60 peo-
ple. How many buses
are needed?​

Answers

Answer:

they need 4 buses

60+60+60=180 that does not get you to 196 so you would add 1 more bus

which equals 4 buses

convert 23cm in the inches(round off to the nearest inch)

Answers

Answer:

9.055

Step-by-step explanation:

Given the following information, find the length of the missing side. Leave your answer as a simplified radical.

Answers

Answer:

Long = 6√3

Step-by-step explanation:

Reference angle = 30°

Hypotenuse = 12

Long = Adjacent = ?

Apply CAH:

Cos 30 = Adj/Hyp

Cos 30 = Long/12

12*cos 30 = Long

12*√3/2 = long (cos 30 = √3/2)

6√3 = long

Long = 6√3

Answer:

6√3

Step-by-step explanation:

To find the long leg first we have to find the short leg because to find the long leg we need to use short · √3.

hypotenuse =12, short = 1/2 of hypotenuse so short leg = 6 and finally long leg = 6√3

3rd Grade Ch 10 Review Homework Name
1. Melissa went to Target at 5:05 P.M. She returned home after 36 minutes. She then
walked her dog Zeke for 10 minutes before going back into her house.
Write the time that Melissa got home and the time she went back into the house.
Explain how you found each time.

Answers

Answer:

5:51 P.M.

Step-by-step explanation:

You first add 36 and 10 which you get 46 then add the 46 to the total so, 46 + 5 is 51 so she will get back at 5:51 P.M

Answer:

u first add 36 to 5:05=5:41 then add 10 more min and that is 51

1.ILL GIVE BRAINIEST FOR ANSWER
Chan invested $12,500 in a savings account that pays 2.5% simple interest. How much interest does
he earn each year?
F $350.50
G $312.50
H $322.50
J $325.50

Answers

Answer:

Step-by-step explanation:

PLEASE HELP ME I WILL HIVE BRAINLIST TO THE CORRECT ANSWER !!!!!!!!!!!​

Answers

Answer:

I'm not 100 percent sure but I think it's the first answer choice because at 40000 3 years have passed. Hope this helps :)

Answer:

The machinery ages three years for every $10,000 loss in value.

Step-by-step explanation:

We can see from the graph that each year, the machinery loses a value of $5,000 (Goes from $50,000 to $45,000 after year one, from $45,000 to $40,000 after year two etc). So we can discount the last two answers.

If it loses $5,000 each year, it loses $15,00 after ageing three years, and $25,00 after five years. Though neither of the first two answers correspond to this, the first answer is closest.

o The day before the exam, Rebecca does a practice run. She attempts 20 glass vases and breaks 3 of them. What is her success rate, shown as a decimal?​

Answers

Answer:

If the goal is to break the vases: 3/20 = 15.0% or 0.15

If the goal is to not break the vases: 17/20 = 85.0% or 0.85

Other Questions
Help due today asap Plaese help Marlene went shopping and bought a bunch of candy for her swim team. She bought packs of Skittles for $1.50 each and packs of M&Ms for $2 each. She spent a total of $39 and bought 24 items. How many of each item did she buy? What is the most important thing you learned in social studies Whats the answers to this question? Explain how Concentrating Solar Power (CSP) technology works. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? A. The mean pulse rate (in beats per minute) of the group of adult males is bpm. B. The mean pulse rate (in beats per minute) of the group of adult males is not bpm. C. There sufficient evidence to warrant rejection of the claim that the mean pulse rate (in beats per minute) of the group of adult males is bpm. D. There sufficient evidence to warrant rejection of the claim that the mean pulse rate (in beats per minute) of the group of adult males is bpm. Hikers spent the following amounts of time (in minutes) to complete anature hike: 48, 46, 52, 57, 58, 52, 61, 56.Suppose another hiker takes 92 minutes to complete the hike.How does the median and mean change when the new hiker isfactored in to the data? How does Morrie know his health is failing?A: he sees how far he can walkB: he sees how much he can eatC: he times how long he exhalesD: he can no longer talk to Mitch Read the following and answer the question. If you're tired of spending your hard-earned money on food that is not worth eating, vote Micah for Student Council president! Is this statement opinion or propaganda? Opinion Propaganda Im kinda stuck on this can i get help Plz answer this plzz!! Well mark brainliest if you are correct!!! Part 1Show and Explain Sportsmanship during physical activity from a teammate. Think back to a time when a teammate displayed good and bad sportsmanship. Use the Sportsmanship Organizer an the rubric to guide you.Its time to share some experiences!Think of at least two times you have seen a teammate be a bad sport.Think of at least two times you have seen a teammate be a good sport.Create pictures and detailed descriptions of all four examples, including:the sport that was being playedyour age when it happenedwho said whatthe final outcome of the situationyour thoughts on why things happened the way they didYou can submit the Sportsmanship Organizer or another creative format. The process of editing includes which of the following?(A) Transferring photos to a computer (B) Combining media (C) Naming Files (D) Keeping files secure Find the explicit form of the arithmetic function of p if the first term is 12 and the common difference is 2. Then find the seventh term. What is the slope of the line that passes through thepoints (4,-7) and (9, 1)?A) 5/8B) 8/5C) -6/12D)-13/6 Which statement describes the relationship between science and technology?Science changes the world to solve problems, and technology is the study of the world.Science and technology both involve studying the world and changing it to suit human needs.Science is the study of the world, and technology changes the world to solve problems.Science and technology both involve solving problems but not changing the world. Need your help answer correctly for 20 points! 16. Two electric bulbs marked 100W 220V and 200W 200V have tungstenfilament of same length. Which of the two bulbs will have thickerfilament? Isaac Newtons timeline of his life events According to the latest real estate report from a suburban town, the mean number of home purchases during last quarter was 175 homes with a population standard deviation of 6 homes. A real estate agent believes that the recent increase of mortgage interest rates is causing a decline in home purchases. To test this, the real estate agent randomly selects 60 recent home purchases. What is the probability that the mean of this sample of home purchases is between 173 and 174 homes