Answer:
A)
Step-by-step explanation:
Point-slope formula.
Given.
Slope (m) = 3
Points (x, y) = (2, 1)
Hi there!
The formula for the circumference of a circle is C = 2 x pi x r. Using this formula, we can plug in what we know and solve for the radius.
WORK:
37.7 = 2 x pi x r
18.85 = pi x r
r = 18.85/pi
or
r = 6
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
Answer:
x=−4
Step-by-step explanation:
Rearrange terms
20−2=−7
−2+20=−7
Subtract 20 from both sides of the equation
−2+20=−7
−2+20−20=−7−20
Subtract the numbers
−2=−7−20
Add 7 to both sides of the equation
−2=−7−20
−2+7=−7−20+7
Simplify
5=−20
Divide both sides of the equation by the same term
5x=-20
5x/5=-20/5
Simplify
x=-4