Decrease is the line going don on the right hand side which is between X=1 and X=8
It’s 175.5 multiply length x with x height
8. 4j -2j -5k +3k (combine like terms)
2j -2k
B
9. -6m+4m +2n-3n
-2m-1n
D
10. ( 2x-1) + (3x-1) +(3x-1)
2x+3x+3x -1-1-1
8x-3
D
Answer:

Step-by-step explanation:
The figure shows a right triangle.
To calculate the measure of the angle A, you can use the inverse trigonometric function arctangent:

Identify the angle
, the opposite side and the adjacent side:

Substitute into
.
The measure of the angle A is:

Rounded to the nerarest hundreth:
