56/.04=1400
Is that what you meant?
Answer:
Brand C
Step-by-step explanation:
Answer:
Simple to help us improve our lives
A parallelogram<span> is a four-sided figure with two sets of parallel sides. This is </span>always true<span>. </span>Squares<span> are quadrilaterals with 4 congruent sides and 4 right angles, and they also have two sets of parallel sides. </span>Parallelograms<span> are quadrilaterals with two sets of parallel sides.</span>
Answer:
-0.6 cm/min
Step-by-step explanation:
The formula for the area of a triangle is ...
A = (1/2)bh
Solving for the base, we find ...
b = 2A/h
Then the rate of change of the base is ...
b' = 2(A'h -Ah')/h^2
Filling in the given values, we find the rate of change of the base to be ...
b' = 2((2 cm^2/min)(20 cm) -(160 cm^2)(1 cm/min))/(20 cm)^2
= 2(40-160)/400 cm/min
= -0.6 cm/min
The base is decreasing at 0.6 cm/minute.
