Answer:
A=2a2+4ah=2·92+4·9·10=522
A. The term "units" refers to the measurements in the original question or problem. When looking at the question, the units we are measuring are dollars/feet.
B. In this case, the f'(x) means we are looking for the cost (in dollars) to drill the next foot down.
C. Since the cost increases the more feet we drill down, the sign of f'(x) is positive.
Answer:
1. y-25=5/2(x-14)
2.
3. 5x-2y=20
Step-by-step explanation:
first, find the slope, m.
slope = rise/run = (75-25)/(34-14)= 50/20 = 5/2
1. point slope form: y-25=5/2(x-14)
2.
3. switch the y to the right side: (5/2)x-y-10=0 --> (5/2)x-y=10
5x-2y=20
The average of pi is 3.14 and is an irrational #
<h3>
Answer:</h3>
c=34
<h3>
Step-by-step explanation:</h3>
So, our starting equation is: -(14 – 9c) = 4(2c + 5)
and this is how we can solve it:
We move all terms to the left:
-(14-9c)-(4(2c+5))=0
We add all the numbers together, and all the variables
-(-9c+14)-(4(2c+5))=0
We get rid of parentheses
9c-(4(2c+5))-14=0
We calculate terms in parentheses: -(4(2c+5)), so:
4(2c+5)
We multiply parentheses:
8c+20
Back to the equation:
-(8c+20)
We get rid of parentheses:
9c-8c-20-14=0
We add all the numbers together, and all the variables:
c-34=0
We move all terms containing c to the left, and all other terms to the right:
c=34
I know it looks complicated but I do hope this helps! :)