1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olganol [36]
3 years ago
13

In 2013, the population of China was estimated to be 1,360,760,100. Round off the number of people 

Mathematics
2 answers:
Aleksandr [31]3 years ago
7 0

Answer:

a) 1,360,760,000

b) 1,361,000,000

c) 1,400,000,000

d)  1,360,800,000

Step-by-step explanation:

We have to round off the given population number to certain digits.

The following are the rules to round of a number:

  1. First identify the digit to be rounded.
  2. If this digit is followed by 5,6,7,8,9 then we round up the number that is increase the digit by 1 and all the numbers to right becomes zero.
  3. If this digit is followed by 0,1,2,3,4 then we round down the number that is decrease the digit by 1 and all the numbers to right becomes zero.

a)  to the nearest thousand.

Thousands place: 0

Right Digit: 1

We round down the number

Rounded to the nearest 1,000 or t he thousands Place =  1,360,760,000

b)  to the nearest million

Millions place: 0

Right Digit: 7

We round up the number

Rounded to the nearest million places = 1,361,000,000

c)  to nearest hundred million

Hundred million place: 3

Right Digit: 6

We round up the number

Rounded to the nearest million places = 1,400,000,000

d)  to the nearest hundred thousand.

hundred thousand place: 7

Right Digit: 6

We round up the number

Rounded to the nearest million places = 1,360,800,000

yarga [219]3 years ago
6 0

Answer:

Step-by-step explanation:

You might be interested in
What is 7,233 divided by 164?
Alisiya [41]

Answer:

44.1036585366

Step-by-step explanation:

5 0
3 years ago
1. A test-tube has a diameter of 3cm. How many turns would a piece of thread of length
Alex Ar [27]

So if we think of a test tube, it looks sort of like a cylinder. This means that its cross-section would be a circle. To find out how many turns a piece of thread would make around the test tube, we need to find the circumference of the test tube, then divide the length of the string by the circumference.

Step 1) Find the circumference

C = pi x diameter

C = 3.14 x 3

C = 9.42

Step 2) Divide the length of the string by the circumference

90.42 / 9.42 = 9.5987

The string would make approximately 9.60 turns around the test tube.

Hope this helps!! :)

6 0
2 years ago
A kite in the shape of a rhombus has diagonals that are 25 in Long and 15 in Long what is the area of the kite
mylen [45]

Answer: 187.5

Step-by-step explanation:

formula for area of a kite is: diagonal 1 times diagonal 2 over 2. plug those numbers in and you’ll get your answer. 25 times 15 / 2.

5 0
2 years ago
First one to say "Free points" gets 50 points and also brainliest!
ycow [4]

Answer:

Free points...?

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Unknown to a medical researcher, 6 out of 25 patients have a heart problem that will result in death if they receive the test dr
Fiesta28 [93]

Using the hypergeometric distribution, it is found that there is a 0.0002 = 0.02% probability that exactly 6 patients will die.

<h3>What is the hypergeometric distribution formula?</h3>

The formula is:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • N is the size of the population.
  • n is the size of the sample.
  • k is the total number of desired outcomes.

The values of the parameters for this problem are:

N = 25, k = 6, n = 8.

The probability that exactly 6 patients will die is P(X = 6), hence:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}

P(X = 6) = h(6,25,8,6) = \frac{C_{6,6}C_{19,2}}{C_{25,8}} = 0.0002

0.0002 = 0.02% probability that exactly 6 patients will die.

More can be learned about the hypergeometric distribution at brainly.com/question/24826394

#SPJ1

8 0
1 year ago
Other questions:
  • 2. Darlene read 5/8 of a 56-page book. How many pages did Darlene read?
    11·2 answers
  • An item that was selling 72 is reduced to 60. Find the recent decrease in price. Round you answer to the nearest tenth.
    12·1 answer
  • Meghan also wants to walk to get some exercise, rather than going to the gym. She decides to walk along arc AB. How far will she
    10·1 answer
  • a high school track teams long jump record is 21 feet and 2 1/4 inches. this year Tims best long jump is 20 feet and 9 1/2 inche
    10·1 answer
  • 2y - 4 = 9. What is y?
    15·2 answers
  • What is the measure of angle Y?
    11·1 answer
  • Solve:<br> 7/8 - (-1/8)<br> A. -1<br> B. -1/8<br> C. 1/8<br> D.1
    5·2 answers
  • the coach mixes 15 scoops of powder with 2 gallons of water to make a sports drink for his team how many scoops of powder does t
    7·2 answers
  • Solve <br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B-4x%5E2y%5E2z%5E4%7D%7B16x%5E%7B10%7Dyz%5E3%7D" id="TexFormula1" title="\
    6·2 answers
  • Part A: In your own words, describe the steps that are necessary to determine whether angles are coterminal.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!