12,000×(1+0.12÷2)^(2×6)+50,000×(1+0.12÷2)^(2×2)=87,270.21
The vertex is (-1,0). you can find this after putting the equation in standard form by completing the square.
we have to find equation similar to

Firstly , we can divide both sides by 2


now, we can multiply both sides by 3

we get
............Answer
Answer:
<m is equal to the measure of <Z
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Let's solve ~

[ according to given figure ]




Correct choice is D