Answer: 475.59 meters .
Step-by-step explanation:
The correct equation is the following:
For this exercise you need to use the Quadratic formula:

In this case you can identify that the values of "a", "b" and "c" are:

Now you must substitute these values into the Quadratic formula and then evaluate. You get:

Choose the positive one and round it to the nearest hundreth:

Answer:
20, increased, Bianca
Step-by-step explanation:
First one:
He is shown to have travelled 20km in 1 hour, so that's 20km/h.
Second:
The gradient is how steep the curve is, the steeper the faster the person is travelling. Due to the fact Bianca's curve becomes steeper, it shows she is travelling faster. Therefore, her running speed increases.
Third:
Bianca's line hits 50km before Alberto, so therefore she finished first.
Let me know if this makes sense, hope it helped! :D
ok
Answer:
The correct answer is 40
Step-by-step explanation:
I took the quiz
Answer:
C) 
Step-by-step explanation:
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Therefore, this solution is genuine.
I am joyous to assist you anytime.