Find the angular size of a circular object with a 3-inch diameter viewed from a distance of 6 yards.
1 answer:
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Answer:
x = 1
Step-by-step explanation:
The graph of f(x) has a relative minimum where its first derivative (f'(x)) is zero and its second derivative (f''(x)) is positive. (Function f(x) is concave upward when f''(x) > 0.) Since the second derivative is the slope of the first derivative, this means the local minimum will be at the x-value where f'(x) = 0 and is crossing the x-axis from below.
The graph of f'(x) shows a local minimum at x = 1.
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Desmos does not allow us to define f'(x) directly, so we have called it f₁(x). The function f(x) is the integral of that—shown as the dashed orange line. We wanted you to see the f(x) curve so you could see it has a local minimum at x=1.
Answer:
David contributes 3 dollar for every 9 dollars that Ken contributes, how dollars will Ken contribute when David contributed 21 dollars.
Step-by-step explanation:
David and Ken are contributing money to buy a textbook.
They agreed, that every 3 dollars that David contributes, Ken should contribute 9 dollars.
Find how much Ken contributed if David when David contribute 21 dollars.
If we set up a proportion equation to solve this problem, we get;