Answer:
-3x^2-15x-30
Step-by-step explanation:
Let's simplify step-by-step.
−3(x+3)2−3+3x
Distribute:
=−3x2+−18x+−27+−3+3x
Combine Like Terms:
=−3x2+−18x+−27+−3+3x
=(−3x2)+(−18x+3x)+(−27+−3)
=−3x2+−15x+−30
Y = 10x + 20
x = number of cars washed for charity
y = amount earned for the charity
slope = 10
This means that :
<span>
For every car washed for charity, the amount earned for the charity increases by $10. </span>
1.8hour = 1 hour 48 minute
7 X 3 = 21
1h 48 + 21
108 + 21
129
2 hours 9 minutes
Therefore he spent 2 hours and 9 minutes
Answer:
Step-by-step explanation:
The derivative of is . The derivative of is , for example.
Derivative of the log function:
Has the following derivative
In this problem, we have that:
So
The derivative of the function is: