Answer:
Circle's area = 28,26 km
Formula = π r²
Step-by-step explanation:
6 7, angle 6 is congruent to angle 7. At each of the parallel lines adjacent angles are supplementary. The angles have special names identifying their positions with respect to the parallel lines and transversal. They are corresponding angles, alternate interior angles, or alternate exterior angles.
Answer:
Step-by-step explanation:
X= Fred
56=x+3x
56=4x
Divide both sides by 4
56/4=14
Fred had 14 points and Phil had 42
Check: 14+42=56
Let them be X and Y..
now...
yx=100 ....
y=100/y ...
now...
x+y= s....where s is their sum...
but y=100/x
now....x+100/x=s..
by differentiating both sides with respect to x..
1-100/x^2=ds/dx
but ds/dx=0..
100=x^2 ..
x=10..
so y=10
