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
amid [387]
3 years ago
8

2. Given that the radius of the Earth is 6340 Km. calculate the Surface Acer of earth ​

Mathematics
1 answer:
serious [3.7K]3 years ago
6 0

Answer:

Step-by-step explanation:

The surface area of a sphere (which the earth is considered to be) = 4 pi r^2

pi = 3.14

r = 6340

Area = 4 * 3.14 * 6340 * 6340 = 504856736 square km.

You should either round this to 505,000,000 or express a value in scientific notation.

5.05 * 10^8

You might be interested in
How do I multiply numbers​
Andrei [34K]
Multiply the number in the tens place of the bottom
number by the number in ones place of the top number. So
multiply the 1 by the 5, which makes 5. Multiply the number in
the tens place of the bottom number by the number in tens
place of the top number. Multiply 1 by 2, which equals 2.
6 0
2 years ago
Golf balls come in a variety of packages. A particular brand of golf balls come in packages of 12 or in packages of 18. The 12-p
Fantom [35]

Answer:

The better deal is the 12 pack because the unit price is $0.37 which is lower than the unit price of the 18 pack that is $0.80.

Step-by-step explanation:

To find which is the better deal, you have to determine which one offers a lower unit price by dividing the price of each package by the number of balls in the pack:

$4.47/12=$0.37

$14.46/18=$0.80

According to this, the answer is that the better deal is the 12 pack because the unit price is $0.37 which is lower than the unit price of the 18 pack that is $0.80.

8 0
3 years ago
What are two ways you can find the surface area of a prism?
slega [8]
1. If the matching ends are triangles, find the area of the triangle (A=1/2bh)
2. If Matching ends are rectangles/squares, find the area of the rectangle/square (bh)
Hope that was helpful!!!
5 0
3 years ago
Read 2 more answers
12 and 35 Pythagorean theorem
Natali [406]

Answer:

Hypotenuse = 37

Step-by-step explanation:

Let the base is 12 and height is 35.

We can use Pythagorean theorem to find the third side (hypotenuse or the longest side). The Pythagoras theorem can be given by :

H^2=b^2+h^2\\\\H^2=12^2+35^2\\\\H^2=1369\\\\H=\sqrt{1369} \\\\H=37

Hence, the hypotenuse is 37 units.

5 0
3 years ago
If 30% of a number equals 25, find 60% of that number.
suter [353]

Answer:

14.94

Step by step:

 25/30 = 83.333

.30x83 = 24.9

.60 x 24.9 = 14.94

6 0
3 years ago
Read 2 more answers
Other questions:
  • Find the difference quotient and simplify your answer. <br>f(x) = x^3 + 3x, (f(x + h) - f(x))/h
    9·1 answer
  • Given g(x) = 10x + 2, find x when g(x) = 2.
    12·1 answer
  • Which size random sample is likely to provide the most trustworthy results
    15·1 answer
  • What is Jessica's yearly salary right out of college?
    15·1 answer
  • Siree wants to go surfing for one hour tomorrow. The height of the waves on a local beach can be approximated by the function H(
    9·1 answer
  • i'd really appreciate it if you guys would stop giving me answers with no explanation. because when i get answers like that, the
    14·1 answer
  • What is the answer to mr. House wrote 8tenths minus 5 hundredths on the board.Maggie said the answer is 3 hundredths because 8 m
    15·1 answer
  • Evaluate the following expression<br><br> 40 -8 - 102
    10·1 answer
  • Hi can someone help me with these? 5 and 6 only though
    13·2 answers
  • Plz help fast I’m taking a quiz
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!