Algebra 2 questions?

2015-11-13 3:12 pm
Please help!!
Thank you

回答 (3)

2015-11-13 3:23 pm
✔ 最佳答案
19. E -- none of these
20. A.
2015-11-13 3:25 pm
B=12/cos 30= 8*3^[1/2]. I can't understand your first question.
2015-11-13 3:15 pm
The sides of a 30-60-90 triangle are in the ratio 1:√3:2.
12 = A√3
A = 12/√3 = 4√3

B = 2A = 8√3


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