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
dybincka [34]
3 years ago
8

The earth has a diameter of 7917.5 mi. What is the arc length of half the earth?

Mathematics
1 answer:
Serhud [2]3 years ago
5 0

Answer:

Arc length is 12436.8m

Step-by-step explanation:

arc length  = \frac{M degree}{360degree} * πD

where M is the angle measure of the arc

and D is the diameter

considering the earth as a circle and half the earth as a semi circle the angle measure of the arc will be = 180 degrees

\frac{180}{360} * π * 7917.5 = 12436.8m

You might be interested in
What is the inverse of the function f(x) = x + 2?
jeka57 [31]
Y=x+2   solve for x and then reverse labels...

y-2=x so

y=x-2

f^-1(x)=x-2 is the inverse of f(x)=x+2
5 0
3 years ago
Read 2 more answers
2) 45+ 17 = 62<br><br> 3) X + 5/6 = 7/16<br><br> 4) Y + 1/7 = 5/8
Montano1993 [528]

9514 1404 393

Answer:

  2) true

  3) X = -19/48

  4) Y = 27/56

Step-by-step explanation:

3) Subtract 5/6 from both sides

  X = 7/16 -5/6 = (7·6 -16·5)/(16·6) = (42 -80)/96

  X = -19/48

__

4) Subtract 1/7 from both sides

  Y = 5/8 -1/7 = (5·7 -8·1)/(8·7)

  Y = 27/56

6 0
3 years ago
Question 6 of 9<br> (3.8).1 = 3. (8.1)<br> O A. True<br> O B. False
Helen [10]

A true because this is an example of the Associative Property by moving the parentheses but having the same outcome.

3 0
3 years ago
Your teacher announced a 50-point math quiz for tomorrow. The quiz will have 15 questions with word problems worth 4 points each
koban [17]

Answer:

5  word problems(4points each)      &      10 open (3 points each)

Step-by-step explanation:

O= open response

W= word problems

  W+O =15

4W + 3O = 50

multiply the first by -3 to eliminate O

-3W -3O = -45

4W  + 3O = 50

  AD BOTH

W = 5    ( 5 questions word problems)

O= 10   ( 10 questions open response)

  5x4 = 20

10x3 = 30

      20 + 30 = 50 points

3 0
2 years ago
Who can explain to me what is sample space probobility<br> 15 POINTS!!!
DIA [1.3K]

a sample space, , which is the set of all possible outcomes.

A set of events , where each event is a set containing zero or more outcomes.

The assignment of probabilities to the events; that is, a function from events to probabilities.

pls make me brainlyest have a good day

4 0
3 years ago
Read 2 more answers
Other questions:
  • HELP NEEDED ASAP!! PLEASE!!!
    15·1 answer
  • Does anyone know how to do this
    12·2 answers
  • The coordinates of the vertices of quadrilateral ABCD are A(-5, 1), B(-2,5), C(5, 3),
    13·2 answers
  • Trent invests $8700 in two different accounts. The first account paid 4 %, the second account paid 8 % in interest. At the end o
    14·1 answer
  • Simplify the expression. Justify each step.
    13·1 answer
  • What is the greatest whole number that rounds to 2, 100when rounded to the nearest​ hundred? The least whole​ number?
    12·1 answer
  • The area of a circle is 81 ft 2 . What is the π circumference? Leave in terms of Pi.
    12·1 answer
  • 1. *
    5·1 answer
  • the shorter leg of a right triangle is 5cm shorter than the longer leg. the hypotenuse is 5cm longer than the longer leg. find t
    14·1 answer
  • The temperature was 75 degrees. at noon, the temperature increased by 7. by evening the temperature decreased by 7
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!