(50 g + 20 h - 30) (-12g +16h -8)
38g + 36h - 38
Answer:
(- 2, 4 )
Step-by-step explanation:
y = 2x + 8 → (1)
y = - 2x → (2)
substitute y = 2x + 8 into (2)
2x + 8 = - 2x ( add 2x to both sides )
4x + 8 = 0 ( subtract 8 from both sides )
4x = - 8 ( divide both sides by 4 )
x = - 2
substitute x = - 2 into (2)
y = - 2(- 2) = 4
solution is (- 2, 4 )
The sign of the x-coordinate changes; the y-coordinate stays the same.
Answer:
8.4 ?
Step-by-step explanation:
sorry if im wrong
Answer:
22.470
Step-by-step explanation:
In this example you have to use the trigonometric function sine which is defined as 
Plug in known values:
Multiply both sides by 25
Approximate sin(64) using a calculator:
Simplify
