Answer:
there are several steps but the final answer is 12!
Step-by-step explanation:
Please mark brainliest :)
-a^2 + -4a + 3a + 12
FOIL
First terms: -a x a = -a^2
Outside terms: -a x 4 = -4a
Inside terms: 3 x a = 3a
Last terms: 3 x 4 = 12
b . 6 is the length of the hypotenuse
R = 960x ft/min
Explaination : 960 is the rate at which the elevator will rise in a minute, while the 'x' represents the amount of minutes passed. Finally the label in the end clarify the units of measure.
the slope is 4/1 because it's 4x and the y intercept is -4
