<span>This problem is solved using the chain rule.
the area of the square is f(t) and the length of the side is g(t)
f(t)=g(t)^2
g'(t)=5
Using the chain rule
f'(t)=2*g(t)*g'(t)
The value of g(t) is sqrt(49) which is 7.
g'(t) is given as 5 cm/s
f'(t)=2*7*5=14*5=70cm^2/s</span>
Answer:
yes
Step-by-step explanation:
(2,2)
x=2 y=2
x+y=4
2+2=4
4=4
5x+5y=20
5(2)+5(2)=20
10+10=20
20=20
Answer:
7/4
Step-by-step explanation:
16 x 8 because its 16 oz per 1 lb so in order to find 8 lbs you have to multiply
Answer:
-50
Step-by-step explanation:
A negative number is like subtracting money so a withdrawal is an negative number
