I need answers about those mathematic problem
1 answer:
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Answer:
OR
Step-by-step explanation:
Vertex form of a parabola is given as:
Where () is the vertex and
are the points on the parabola.
We are given that, the vertex is (3, -2) and another point on parabola is given as (2, 3).
First of all, putting the vertex in the vertex equation as given above:
Now, putting the values of as 2, 3 and let us find the unknown variable
:
Therefore, the equation in vertex form can be written as:
OR
For this case, the first thing we must do is define variables.
We have then:
x: time in minutes
y: distance traveled.
We then have the following equations:
For Kathleen:
For Arnob:
By the time Arnob reaches Kathleen we have:
From here, we clear the value of x.
We have then:
Answer:
it takes Arnob to catch up to Kathleen 75 minutes:
d. 75