Amber could have used cross multiplication.
Have a great day!!!!
Answer:
It is actually 2 and -6.
Step-by-step explanation:
i hope i helped <33
<h3>
Answer: 100 meters</h3>
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Explanation:
If you draw out the diagram, then you'll find that a 45-45-90 triangle forms. The nice thing about this type of triangle is that the two legs are always the same length. The horizontal leg is 100 meters, so the vertical leg must also be 100 meters.
Side note: this type of triangle is an isosceles right triangle.
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You could use the tangent rule to get the same thing
tan(angle) = opposite/adjacent
tan(45) = 100/x
1 = 100/x
1*x = 100
x = 100
In this case, the opposite leg is the vertical leg since it is furthest from the angle of elevation.
Answer:
1. I have simplified the first question:

2. I have found the parabola properties:

Yes
10^2 pages mean 100 page
so she has to read 100/6 page per day ie 16.66 pages
since her can read 20 page in average
she can finish it