Answer:
-3,2 -2,4 1,-1
Step-by-step explanation:
<span>Length of outer track = sum of length of 10 pieces = circumference of the outer circle
if R is the Radius of outer circle then...
Circumference of the outer track = 2pi*R
Similarly the circumference of the inner track (with radius r) = 2pi*r
length of each outer piece is 3.4 inch more than length of inner piece
So total outer length is 10*3.4 =34 inches more than the inner length.
=> Outer Circumference - Inner Circumference = 34 inches
=> 2pi*R - 2pi*r = 34
=> 2pi(R -r) = 34
=> R-r = 34/2pi = 5.41 inches
=> R-r = Width of the track = 5.41 inches</span>
The formula for circumference is
C=(pi)d
11304=(pi)d
assume pi is 3.14
rearrange formula
d= c / (pi)
= 11304 / 3.14
d= 3600
Answer:
a = 2/3
Step-by-step explanation:
(4(x+1) + 20 )/(x+1) = 16
4x + 4 + 20 = 16x + 16
12x = 8
x = 2/3
Answer:
0.5
Step-by-step explanation:
If you add 0.5 to -0.5, it will equal 0.
