the first step is to find the circumference of the wheel.
c = πd
where d = diameter of the wheel
c = πd
= π × 70
= 219.9 cm.
in every revolution the bicycle move 219.9 cm.
in 50 revolution the bicycle will make = 219.9 × 50
= 10,995.6 cm
in meter = 10,995.6 ÷ 100
= 109.956 m
calculate the number of years 2009-2001 = 8 years
8 years x $35 each year = $280
$1950 - $280 = $1670
the equation of the ellipse is
where are the coordinates of the center.
if the vertices of an ellipse are at a(1, 5) and b(1, -5), then the center is the midpoint of the segment ab. hence, the center has coordinates
the coordinates of the vertices satisfy the equation:
if (3, 0) is a point on the ellipse, then its coordinates satisfy the equation:
therefore, the equation of the ellipse is