Answer:
a
b
tex]C(10)' = \$60 / feet[/tex]
c
Step-by-step explanation:
From the question we are told that
The price per square foot of a floor tile is
The cost of shipping is
The current length of the square bathroom is x = 10 ft
The new length is
Generally the equation representing the cost of the square tile is mathematically represented as
Generally the average rate of change of cost is mathematically represented as
Generally the cost for flooring a 12 feet square bathroom is mathematically represented as
=>
Generally the cost for flooring a 10 feet square bathroom is mathematically represented as
=>
So
=>
Generally the instantaneous rate of change of cost is obtained by the differentiating the cost function as follows
So the instantaneous rate of change of cost at length 10 feet is mathematically represented as
=>
Generally given that the new cost function is
Now the instantaneous rate of change of cost will now be
So the instantaneous rate of change of cost at length 10 feet is mathematically represented as
=>
Number 13 would be 2:3 it’s just a simple ration
Round 478 to 480 so this reduces to 1/40 which is 0.025. Or round 478 to 500, which reduces to 3/125 which is 0.024.
The 2 numbers can be: 0.0041 and 0.0045
The second one is correct <span />