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
frosja888 [35]
2 years ago
10

NEED HELP LIKE NOW 15 points if answered!!!!!!! how do you work it out

Mathematics
1 answer:
goblinko [34]2 years ago
4 0

Remark

You have to stare at this for a moment before you catch on. When you fold the arc into a circle, 8pi becomes the circumference of the base circle.

Formula

C = 2*pi*r

C = 8pi

Solution

8pi = 2pi * r    Divide both sides by 2pi

8pi / 2 pi = r

4 = r                           Answer

You might be interested in
If ∠A and ∠B are complementary, find the value of x given that ∠A=3x-2 and ∠B=x+12
xxMikexx [17]

Answer:

x=20 degrees

Step-by-step explanation:

complementary means the angles equal 90 degrees

so ∠A+∠B=90 degrees

∠A=3x-2 and ∠B=x+12

so subsitute

(3x-2)+(x+12)=90

then solve for x

4x+10=90

4x=80

x=20 degrees is your answer

6 0
2 years ago
Plz help w this math problem
Svetllana [295]

Answer:

• for x = 2a√t, make t the subject:

{ \tt{x = 2a \sqrt{t} }} \\  \\ { \tt{ \sqrt{t}  =  \frac{x}{2a} }} \\  \\ { \boxed{ \tt{t =  \frac{ {x}^{2} }{4 {a}^{2} } }}}

• then find y:

{ \tt{y =  {ar}^{2}  - 2at}} \\  \\ { \tt{y =  {ar}^{2} - 2a( \frac{ {x}^{2} }{4 {a}^{2} } ) }} \\  \\ { \boxed{ \tt{y =  {ar}^{2} -  \frac{ {x}^{2} }{2a}  }}}

6 0
3 years ago
Help please!! really quickly
yKpoI14uk [10]

y =  \frac{7}{5} x + 1
8 0
3 years ago
Reflect the shape A in the line
riadik2000 [5.3K]

i dont knowkkkkkkkkkkkkk

5 0
2 years ago
If the diameter of the sphere is 12cm what is the volume of the cylinder
german

r^{2}  \times \pi \times (h = height \: of \: the \: cilinder)
6 0
2 years ago
Other questions:
  • What is the value of x to the nearest tenth <br> 3.6 <br> 5.8<br> 11.5<br> 14.3
    15·2 answers
  • HELP ME ASAP!! I"LL GIVE BRAINLIEST!!8. How many college students are majoring in elementary education?
    8·1 answer
  • On a map, 1/4 inch between locations represents an actual distance of 2 miles between the locations. What is the actual distance
    7·1 answer
  • Given: △AMK m∠M = 90° AM = 5, MK = 7 Find: AK
    9·2 answers
  • The library is located 1.8 miles west of Callie’s house. The grocery store is located 2.4 miles south of the library. What is th
    13·1 answer
  • Let f (x)= x + 18 − 3 x − 15 Choose the correct interval form for the DOMAIN of f and then enter the values for the endpoint(s)
    15·1 answer
  • Jonah is looking at some information for the obstacle course he is interested in completing. The x-coordinate is the number of t
    11·2 answers
  • I need help with the questions with all of them.
    9·1 answer
  • 77. 003 x 3.789 ? All steps if you can please
    11·1 answer
  • Mrs. Nevin is making a costume for a school play. She needs a piece of fabric that is greater than 1/2 of a yard but less than 5
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!