Answer:
The maximum amount spent on clothing and footwear occured in late 2008.
Step-by-step explanation:
The existence of a maximum in a continuous differentiable function is determined by the First and Second Derivative Test, which consist on the following process:
1) First and second derivatives of the given function are obtained.
2) First derivative is equalized to zero and roots are found. (Critical points)
3) Each critical point is evaluated in the second derivative expression in order to determine if each point is an absolute maximum (f'' < 0) or minimum (f'' > 0).
The first and second derivatives of the function are, respectively:
Since first derivative is a first-order polynomial (linear function), there is a root, which is found herein:
The second derivative indicates that critical value leads to an absolute maximum, therefore, the maximum amount spent on clothing and footwear occured in late 2008.
(<) this means less than
(>) this means greater than
So since the question doesnt say anything about -4°C we can automatically cross out A and B
They are both negative! but when you have a negative. Its going to be less than a positive
So this means 4°C is greater than -5°C
or in other words
D.) 4°C > -5°C
hope this helps!
and dont forget 2
MARK ME BRAINLIEST!
=)
Answer:
The answer to your question is 7 large and 16 small
Step-by-step explanation:
Data
cost large frame = $13
cost small frame = $5
total number of frames = 23
total cost = $171
large frame = l
small frame = s
Process
- Write equations that help to solve the problem
l + s = 23 Equation l
13l + 5s = 171 Equation ll
-Multiply equation l by -5
-5l - 5s = -115
13l + 5s = 171
8l + 0 = 56
8l = 56
l = 56/8
l = 7
-Find s
7 + s = 23
s = 23 - 7
s = 16
-Conclusion
She bought 7 large frames and 16 small frames.
I<em> think NOQ POL.................................</em>