If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Sinusoidal models word problems

You might need: Calculator


M(t) models the distance (in millions of km) from Mars to the Sun t days after it's at its furthest point. Here, t is entered in radians.
How many days later does Mars first reach 220 million km from the Sun?
Round your final answer to the nearest whole day.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
  • an exact decimal, like 0.75
  • a multiple of pi, like 12 pi or 2/3 pi