First of all, it is 2r

and it would be divide by 3.14 (pi) and then you should have the diameter. Then divide by 2 to find radius.
Answer: Never true.
Step-by-step explanation: Distribute the numbers: 4 times x is 4x, 4 times 3 is 12. Then you have the equation: -x+4x +12 = -12. Now, choose a random number, maybe -4. A negative plus a negative cancels out so you are left with 4-16(Because you distribute the number) +12 = -12. 4-16 is -12. -12 plus 12 equals 0.
Answer: -27
Step-by-step explanation:
Answer:
if 1 in= 10 miles, then, 8 in= 80 miles
Step-by-step explanation:
it's plural so axes*
and in pilar coordinates, the axes are circular so they never intersect but the centre point is still called origin.