Ming throws a stone off a bridge into a river below.
1 answer:
We have been given that Ming throws a stone off a bridge into a river below.
The stone's height (in meters above the water), x seconds after Ming threw it, is modeled by .
We are asked to find the maximum that the stone will reach.
We can see that our given equation is in vertex form of parabola with vertex at point (h,k).
We can also see that leading coefficient is negative, so our given parabola is a downward opening parabola and its maximum value be at vertex.
The maximum height will be equal to y-coordinate of vertex.
We can see that vertex of our given parabola is at point (1,45). Therefore, the maximum height will be 45 meters.
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Answer:
(i)
(ii)
(iii) $36.5
Step-by-step explanation:
Given that:
1. Total Number of fruits = 80
2. Number of mangoes = x
3. Both mangoes and oranges are there in the basket.
Solution (i):
Only mangoes and oranges are there in the basket and the basket is full.
so, Number of mangoes + Number of oranges = Total number of fruits
x + Number of oranges = 80
Number of oranges =
Solution (ii):
<u>Given:</u>
Cost of an orange = 50 cents = $0.50
Cost of a mango = 40 cents = $0.40
Cost for x mangoes =
Cost for () oranges =
Solution (iii):
Put value of x = 35 in S(x)
Hence, answers are:
(i)
(ii)
(iii) $36.5