It means that if u subtract idk lol
Answer:
$50
Step-by-step explanation:
When finding sales price you multiply. But here we are finding the original price. So now you do the opposite, divison.
20/.4 = 50
Answer:
b>1
Step-by-step explanation:
12-3b<9
-3b<9-12
-3b<-3
b>1
Answer:
A=79.2
Step-by-step explanation:
A=a+b/2*h
A=5.4+14.4/2*8
A=19.8/2*8
A=9.9*8
A=79.2
Answer:
224
Step-by-step explanation:
We will need the following rules for derivative:
Sum rule.
Constant multiple rule.
Power rule.
Slope of y=x is 1.
by sum rule.
by constant multiple rule.
by power rule.
Now we need to find the derivative function evaluated at x=9.
In case you wanted to use the formal definition of derivative:
Or the formal definition evaluated at x=a:
Let's use that a=9.
We need to find f(9+h) and f(9):
(used foil or the formula (x+a)(x+a)=x^2+2ax+a^2)
Combine like terms:
Ok now back to our definition:
Simplify by doing 1044-1044:
Each term has a factor of h so divide top and bottom by h: