The angle is in the second quadrant so only the sine is positive .
Length of the hypotenuse = sqrt (-1^2 + 3^2) = sqrt10
sine = 1/sqrt10 = 0.3162 to 4 dec places
tangent = 1 / -3 = -0.3333 to 4 d p's
cosine = -3/sqrt10 = -0.9487 to 4 d, p's.
There would be $0.34 Sales tax and it would be $7.05 in all
11 is the value of x. hope this helps you
Oman is wrong, if you raise any decimal number less than one to a power of 2 the number just gets smaller
<span>area of square = pi r^2
3.14 * 13 *13
=530.66
=531
A</span>
