Circumference = 2Pi * r
28.3cm = 2pi * r ( Isolate r )
28.3cm / 2pi = r
R = 4.504
To verify work we can plug 4.504 back into the equations.
Circumference = 2pi*4.504 ~ 28.299 Which is true !
15. 145. 360-90-95-30
16. 90
The other picture number 16 again I already did that one.
Answer: The letter x is often used in algebra to mean a value that is not yet known. it is called a variable or somethings an unknown in x + 2 = 7, x is a variable but we can work out its value if you try a variable does not have to be x though it could be y or w, or any letter, name or symbol. See: variable
Step-by-step explanation: and that's it! have a yummy cookie day! ◑﹏◐
Answer:
74
Step-by-step explanation:
(80+96+81+89+64)÷5 = 84
Used the formula to get the average of a number. Hope this helps
The numbers can be 5.25 and 26.25
