Answer:
x-12≤7
x≤19
Step-by-step explanation:
less than means it comes after
x-12
is at most means less than or equal to
x-12≤7
Add 12 to each side
x-12+12≤7+12
x≤19
I did not understand Q3 and I could not, but I understood Q2
The answer is Q2: 12 liters
Answer:
-4
Step-by-step explanation:
given
f(x) = 4x - 12
if x = 2,
f(2) = 4(2) - 12
= 8 - 12
= -4
Answer:
0.3537 feet per minute.
Step-by-step explanation:
Gravel is being dumped from a conveyor belt at a rate of 10 ft3/min. Since we are told that the shape formed is a cone, the rate of change of the volume of the cone.


If the Base Diameter = Height of the Cone
The radius of the Cone = h/2
Therefore,


Therefore: 
We want to determine how fast is the height of the pile is increasing when the pile is 6 feet high.

When the pile is 6 feet high, the height of the pile is increasing at a rate of 0.3537 feet per minute.