Kevin was asked to determine the length of side XZ. His
work is shown
Which error did Kevin make?
He has the side lengths in the wrong place in the
cosine ratio
18
He multiplied both sides by the length of XZ instead
of dividing by XZ
He should have used the sine ratio.
He should have used the tangent ratio
1 cos(34°): 1
2 (XZ)cos(349) = 18

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3