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
dlinn [17]
3 years ago
8

in 2010, the continent of south america has a population of 395,280,204. which of the following is the closest estimate of this

number? A 3x10^8 B 4x10^7 C 4x10^8 or D 4x 10^9
Mathematics
1 answer:
grigory [225]3 years ago
6 0

South America is a subcontinent of the Americas located in the Southern, Western ... with a 2013 population estimated at 386,000,000, according to national estimates of ... By far the most populous country in South America is Brazil, which has ... as high as 8% in the case of Argentina, while unemployment remaining but low

but i would say your answer could be D

You might be interested in
The diagram below gives the dimensions of a swimming pool. 18 ft , 20ft, 36ft (c) What is the total area of the swimming pool? E
WARRIOR [948]
The picture in the attached figure

Part 1) <span>What is the total area of the swimming pool?
</span>
we know that
<span>area of the swimming pool=area rectangle-area semi circle

area rectangle=20*36-----> 720 ft</span>²

area semicircle=pi*r²/2
r=18/2----> 9 ft
area semicircle=pi*9²/2----> 127.17 ft²

area of the swimming pool=720 ft²-127.17 ft²----> 592.83 ft²

the answer Part 1) is
The area of the swimming pool is 592.83 ft²

Part 2) <span>What is the perimeter of the swimming pool?
</span>
perimeter of the swimming pool=perimeter of rectangle-18 ft+perimeter semi circle
perimeter of rectangle=2*[20+36]---> 112 ft

perimeter semi circle=2*pi*r/2----> pi*r
r=9  ft
perimeter semi circle=pi*9----> 28.26 ft
 so
perimeter of the swimming pool=112 ft-18 ft+28.26 ft----> 122.26 ft

the answer Part 2) is
122.26 ft

6 0
3 years ago
There are 52 cards in a deck, and 13 of them are hearts. Four cards are dealt, one at a time, off the top of a well-shuffled dec
irga5000 [103]

Answer:

10.97%

Step-by-step explanation:

There are 52 cards.

13 of them, are hearts.

Then

52 - 13 = 39 cards are not hearts.

4 cards are drawn, we want to find the percent chance that the fourth card is a heart card, but no before.

So the first card can't be a heart card.

because the deck is well-shuffled, all the cards have the same probability of being drawn.

Then the probability of not getting a heart card, is equal to the quotient between the number of non-heart cards (39) and the total number of cards (52), then the probability is:

p₁ = 39/52

The second card also can't be a heart card, the probability is calculated in the same way than above, but now there are 38 non-heart cards and a total of 51 cards (because one card was already drawn) then the probability here is:

p₂ = 38/51

For the third card the reasoning is similar to the two above cases, here the probability is:

p₃ = 37/50

The fourth card should be a hearts card, the probability is computed in the same way than above, as the quotient between the number of heart cards in the deck (13) and the total number of cards in the deck (now there are 49 cards)

then the probability is:

p₄ = 13/49

The joint probability (the probability of these 4 events happening together) is equal to the product between the individual probabilities:

P = p₁*p₂*p₃*p₄

P = (39/52)*(38/51)*(37/50)*(13/49) = 0.1097

The percent chance is the above number times 100%

Percent =  0.1097*100% = 10.97%

3 0
3 years ago
List out the elements of the set “The letters of the word Mississippi”
navik [9.2K]

Answer:

{M, i, s, p}

Step-by-step explanation:

The elements of the set are the letters in Mississippi. But remember, elements cannot repeat themselves! So the elements of this set would be {M, i, s, p} since all the other letters are just repetitions.

Hope this helps!!

4 0
3 years ago
Read 2 more answers
Determine the 10th term 0.1,0.5,2.5
ivann1987 [24]
Find the pattern first which is multiply by 5. This problem is geometric sequence so you have to use this formula to find the 10th term:
An=AR^n-1
A(10)=0.1(5)^(10-1)
A(10)=195312.5

6 0
3 years ago
Which of the following could possibly be
Ierofanga [76]

Answer:

Hi I believe A. whole numbers

plz let me know if im right

8 0
2 years ago
Other questions:
  • Which is a property of an angle?
    10·2 answers
  • A shape that is both a parallelogram and a trapezoid.
    10·1 answer
  • The area of a rectangle is 180 squared in2. The ratio of the length to the width is 5 : 4Find the length and the width. The leng
    11·1 answer
  • I have a math question that im stuck on 2 - 2x ≥ x + 66
    11·1 answer
  • Which is a better buy? A large pizza with a 16-inch diameter for $15.00 or a medium pizza with an 8-inch diameter for $7.50?
    12·1 answer
  • What are the composite factor of 20
    8·2 answers
  • A package in the shape of a rectangular prism has a length of 412 feet, a width of 234 feet, and a height of 213 feet. What is t
    6·1 answer
  • FIRST ANSWER GETS BRAINLIEST PLZ DONT PLAY AROUND
    14·2 answers
  • Draw the following graph on the interval −195∘ :<br> y=cos(x)+2<br> What is the amplitude of the function?<br> What is the perio
    8·1 answer
  • The product of two consecutive even numbers is 360. Find the numbers.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!