Answer:
13.6 cm
Step-by-step explanation:
The slope of -0.6 tells you the change in height in 7 hours will be ...
(-0.6 cm/h) · (7 h) = -4.2 cm
This is added to the candle height after 12 hours, so the height after 19 hours is ...
17.8 cm -4.2 cm = 13.6 cm
Just get photo math and take a pic and it’ll show you how to do it like in elimination substitution and graphing
Answer:
8
Step-by-step explanation:
Y= 2x+4, because when you plug in x and y you then solve for b and get 4. The 2x is the same because the slope stays the same on parallel lines.
Answer:
2x - 9
Step-by-step explanation:
7x - (9 + 5x) < distribute the - into the parentheses to get rid of them
7x - 9 - 5x < combine like terms
7x - 5x = 2x
-9 stays as it is as there are no other terms to combine it with
the answer is 2x - 9