I believe your answer is:
<span>C. Two times r equals the diameter of the circle. Pi is needed for all circle formulas, so you multiply by Pi since you are finding the circumference.
2r = d or, 2 radius = one diameter
</span>π is used in both circle equations:
<span>
2</span>πr (circumference)
πr² (area of circle)
hope this helps
So for this, we will be doing a system of equations, one equation representing the sum and the other representing the difference. Let x = larger number and y = smaller number:
For this, I will be using the elimination method. With these equations, add them together to get . From here we can solve for x.
For this, just divide both sides by 2 and your first answer is
Now that we have the value of x, substitute it into either equation to solve for y:
In short, <u>the two numbers are 12 and 7.</u>
Answer: 60 yards
Step-by-step explanation: Starting height is 280 yards, add 140 yards, then subtract 360.
I believe it is No it’s not
Answer:
C. is proportional.
Step-by-step explanation: