4x-7=7x-61
-7=3x-61
54=3x
Answer
X=18
Answer:
r equals StartFraction C Over 2 pi EndFraction
Step-by-step explanation:
we know that
The circumference of a circle is equal to
where
r is the radius of the circle
Solve for r
That means -----> isolate the variable r
Divide by 2π both sides
Simplify right side
Rewrite
so
r equals StartFraction C Over 2 pi EndFraction
Answer:
36
Step-by-step explanation:
AOB + BOC = AOC
AOC = 90 since the lines are perpendicular
6x-12 + 3x+30 = 90
Combine like terms
9x + 18 = 90
Subtract 18 from each side
9x+18-18 = 90-18
9x = 72
divide by 9
9x/9 = 72/9
x = 8
AOB = 6x - 12
= 6*8 - 12
= 48 -12
= 36
Z+22/z = 12
z+22=12z
22=11z
2=z
Hope this helps. Just say if you need more of an explanation.
Answer:
2684
Step-by-step explanation:
flower bed - diameter: 20 meters
sidewalk: width: 3 meters
Total diameter: 23
Total radius: 16.5
Area Equation:
16.5 x 3.14 ^2
51.81 ^2
= 2684.2761
~ 2684
