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
lara [203]
3 years ago
7

The circumference of a circle is 78π cm. Find the diameter, the radius, and the length of an arc of 140°.

Mathematics
1 answer:
jasenka [17]3 years ago
5 0
 The correct answer is the option D, which is: <span>D. 78 cm; 39 cm; 30.3π cm
 The explanation is shown above:
 1-The formula for calculate the circumference of a circle is:
 C=2</span>πr
 78π=2πr
 2- The radius is:
 r=78π/2π
 r=39 cm
 3- The diameter is:
 D=39 cm x 2
 D=78 cm
 4- The arc length is:
 arc length=(140°π/180°)(39 cm)
 arc length=30.3π cm
 
You might be interested in
Show working please
shutvik [7]

Answer:

Step-by-step explanation:

       1.159 R (remainder) 42

     | ------------------------

73  | 84.649

      -73

       116 (brought 6 down)

       -73

         434 (brought 4 down)

         -365

          699 (brought 9 down)

         -657

             42 is the remainder

6 0
3 years ago
Read 2 more answers
Find the value of y for which a the values of 5y+3 and 36–y are equal<br><br> plzzzz
Travka [436]

Answer:

11/2

Step-by-step explanation:

5y+3=36-y

1) Subtract 3 from both sides:

5y=33-y

2) Add y to both sides:

6y=33

3) divide both sides by 6:

y=33/6

4) Simplify the fraction:

11/2

8 0
3 years ago
Russell has already taken 540 quizzes during past quarters, and he expects to have 5 quizzes
atroni [7]

Answer:

565

Step-by-step explanation:

5x5=25

540+25=565

6 0
3 years ago
The expression to find the perimeter of a rectangle is 2(length + width). What is the perimeter, in units, of a rectangle of len
wolverine [178]
The last one is the answer
3 0
3 years ago
Read 2 more answers
3(4x+2)-6x=5x-5(2+x) please solve show your work do not solve for x​
pshichka [43]

Answer:

  • simplifies to 6x+6=-10
  • x = -8/3 = -2 2/3

Step-by-step explanation:

3(4x+2)-6x=5x-5(2+x)

12x +6 -6x = 5x -10 -5x . . . . . eliminate parentheses using the distributive property

6x +6 = -10 . . . . . . . . . . . . . . . collect terms

x +1 = -10/6 . . . . . . . . . . . . . . . divide by 6

x = -1 - 5/3 . . . . . . . . . . . . . . . add -1

x = -8/3 . . . . . . . . . . . . . . . . . simplify

5 0
3 years ago
Other questions:
  • What is the ratio of one hour to 600 seconds?
    12·2 answers
  • You roll a fair 666-sided die. What is \text{P(roll greater than 4})P(roll greater than 4)P, left parenthesis, r, o, l, l, space
    10·1 answer
  • Help me plzzzzz need help
    13·1 answer
  • HELP! Look at the figure, PQRS. Find the values of ​x and y. a) x = 5, y = 7 b)x = 6, y = 8 c)x = 6, y = 9 d)x = 7, y = 10
    15·1 answer
  • On a 16 scale drawing of a bike, one part is 3 inches long. How long will the actual bike part be?
    12·2 answers
  • I need help with 6,7,8,9,10 please
    6·1 answer
  • A mountain gorilla weighs 135 pounds and is gaining pound each week. An eastern gorilla
    7·1 answer
  • A wheelchair ramp is to be built from the ground to the door sill along side a building. The cross section of the ramp is a righ
    12·1 answer
  • Murat has 2/3 kg of rice that he wants to put into bags that contain 3/10 kg of rice each?
    11·2 answers
  • A regular six-sided die is rolled 1000 times. Use the binomial distribution to determine the standard deviation for the number o
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!