<span>
1.You first have to determine the relationship and the current unit and the target unit which it will be converted into....</span> <span>
2.In this case, feet to meters and seconds to minutes</span> <span>
3.Determine the conversion rate</span>
<span>4 <span>The time which is 2 mi / hr x 1 hr / 60 min = 0.3 mi/min</span></span><span>
</span><span>And that's your answer :)</span>
Y = -1
x = 5
jeng jeng jeng
the first part isn't 90, it's 180.
the whole circle is 360, half of 360 is 180
an acute angle is any angle less than 90 degrees.
Trigonometry can be used to find angles and sides of simple triangles. If an 18-foot ladder touches a building 14 feet up the wall then the angle can be deduced by trigonometry. In this case, the ladder defines the hypotenuse (H) of the triangle and the wall defines the opposite (O) side of the triangle. Therefore we can use the equation theta=sin^-1(O/H) . This yields an angle of 51 degrees.
You can perform all kind of operation that are one the inverse of the other, so that the value won't change. For example, you can multiply and divide by 2:

Or add and subtract 5:
