What is thirteen and nine tenths in expanded form
if the dolphins are fed half a bucket of fish then half of that would be a quarter, therefore the sea otters are fed 1/4 of a bucket.
the sum the 3 angles of a triangle add to 180 degrees
5x+8x+2x+9 = 180
subtract 9 from each side
15x = 171
divide by 15
it is true, because the cosine function has a period of 2π
since, the period of the cos function is 360° ( or 2π radians ), it holds the property of:
taking as , is equal to
the equation is true!
note: the cos function is even function
hence, the equation is true, because the cosine function has a period of 2π, not because the cosine function is odd, which it is