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42 votes
42 votes
Solve for x. Thank you

Solve for x. Thank you-example-1
User Paulyphonic
by
2.8k points

2 Answers

19 votes
19 votes

Answer:

4

Explanation:

cos^-1(15/20)=41.40962212

41.40962212/2=20.70481106

tan(20.70481106)x15=5.669467097

5.669467097-2=3.669467097

3.669467097 round up

4

User Idophir
by
2.6k points
11 votes
11 votes

Answer: Choice A) 4

Work Shown:

Use the angle bisector theorem

15/(x+2) = 20/(14-(x+2))

15/(x+2) = 20/(-x+12)

15(-x+12) = 20(x+2) .... cross multiply

-15x+180 = 20x+40

180-40 = 20x+15x

140 = 35x

35x = 140

x = 140/35

x = 4 .... answer is choice A

User Suranga
by
2.7k points