Answer:
The base is decreasing at 2 cm/min.
Step-by-step explanation:
The area (A) of a triangle is given by:
(1)
Where:
b: is the base
h: is the altitude = 10 cm
If we take the derivative of equation (1) as a function of time we have:

We can find the base by solving equation (1) for b:

Now, having that dh/dt = 1 cm/min, dA/dt = 2 cm²/min we can find db/dt:

Therefore, the base is decreasing at 2 cm/min.
I hope it helps you!
Answer:
x + 3
Step-by-step explanation:
Since we have a common denominator, we can just simply combine the numerator which is just x+3.
Answer:
y= -3x+2
Step-by-step explanation:

The answer is A
-4x +3y + z + 2