Answer:
109000
Step-by-step explanation:
-7.5 / -2.5 = 3
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<u>Your question: </u>given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)
The correct answer would be D 
This type of parabola opens either to the left or to the right. The negative makes it open to the left.