Which of the following shows the situation below in function notation?
1 answer:
Answer:
C
Step-by-step explanation:
The general functional notation is:
Where it means that is a function of
, and the answer is
.
From the problem, we know that the depth is a function of distance, and at that specific distance, the depth is 30 ft.
<u>So we see that </u><u>depth </u><u>is a function of </u><u>distance from shore</u><u>, and the answer is </u><u>30 ft.</u>
Matching this to our explanation of functional notation above, we can say that:
Depth(distance from shore) = 30 ft
Answer C is right.
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Answer: The correct option is (C) $342.
Step-by-step explanation: Given that Mr. Williams is building a sand box for his children and is costs $228 for the sand if he builds a rectangular-sand box with dimensions 9 ft by 6 ft.
We are to find the cost of the sand if he decides to increase the size to
Since the box is empty from inside, so we will be considering the perimeter of the box, not area.
The perimeter of the rectangular-sand box with dimensions 9 ft by 6 ft is
and the perimeter of the rectangular-sand box with dimensions is
Now, we will be using the UNITARY method.
Cost of sand for building rectangular-sand box with perimeter 30ft = $228.
So, cost of sand for building rectangular-sand box with perimeter 1 ft will be
Therefore, the cost of sand for building rectangular-sand box with perimeter 45 ft is given by
Thus, the required cost of the sand is $342.
Option (C) is CORRECT.