Answer: Im not completely sure but my best guess is 21. the tree is 21 feet tall
Step-by-step explanation:
The graph of the given Quadratic equation is attached in the Answer, where we can se that the axis of symmetry is :
The answer is 31. 10+10+20+1=31
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Solve the equation:

Reduce the fractions at the left side so that they have the same denominator:

Numerators must be equal:

I hope this helps. =)
Tags: <em>rational equation fraction solution algebra</em>
Step-by-step explanation:
cos 45° = distance to east / total distance=7,2
distance to east = cos 45° * 7,2 = 5,1 km