Answer:
I
Step-by-step explanation:
I
Since derivatives lower the degree of polynomials, if you want the second derivative to be zero you have to choose first-degree polynomials.
So, you have
Two polynomials are linearly independent if they are not multiples of each other. So, for example, you might choose and to find two linearly independent solutions.
As for
we want a second-degree polynomial with leading coefficient 1/2 so that we will get 1 when deriving it twice:
If we impose the conditions
we have
So, our solution will be in this form:
To fix , we use the second condition:
So, we have fixed and the solutions is
Answer:
11.2 miles
Step-by-step explanation:
The mnemonic SOH CAH TOA reminds you that ...
Tan = Opposite/Adjacent
The side you are given is adjacent to the given angle, and the side you are asked to find is opposite the given angle. You can fill in the given values and solve for the required measure.
tan(66°) = BC/(5 mi)
Multiplying by 5 mi gives ...
BC = (5 mi)·tan(66°) = (5 mi)·2.246 = 11.23 mi ≈ 11.2 mi
The answer is (a) hope it helps