Answer: D
Answer: C
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Inv A 2013
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Inv A 2013
by E=mc^2 » Fri Mar 22, 2013 5:21 pm
I took geom. 3 years ago, so I forgot a lot. How do you do 45, and 60? Thanks!
Answer: D
Answer: C
Answer: D
Answer: C
CA: 17^2 (Invitational A)
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Re: Inv A 2013
by 101dalmatians » Fri Mar 22, 2013 5:26 pm
I guess this signature really doesn't matter now that I know that the forum is going down soon...
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Re: Inv A 2013
by E=mc^2 » Fri Mar 22, 2013 8:51 pm
Genius. Thanks both of you!
CA: 17^2 (Invitational A)
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Re: Inv A 2013
by NoMathWhiz » Tue Mar 26, 2013 11:11 am
Another question from INV A test. I am not getting the correct answer on #13. Anyone have any suggestions?
#13. Roland Upp built a skateboard ramp that is 20 feet long and the end of the ramp is 3 feet from the ground. What is the angle of inclination of the ramp? (nearest second)
The answer is supposed to be 8 degrees 37 minutes and 37 seconds. I keep getting 8 degrees 31 minutes and 51 seconds.
#13. Roland Upp built a skateboard ramp that is 20 feet long and the end of the ramp is 3 feet from the ground. What is the angle of inclination of the ramp? (nearest second)
The answer is supposed to be 8 degrees 37 minutes and 37 seconds. I keep getting 8 degrees 31 minutes and 51 seconds.
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Re: Inv A 2013
by darksaber21 » Tue Mar 26, 2013 1:42 pm
They give you the height and the hypotenuse of the right triangle. As a result you use the inverse sine function to find the angle.
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Re: Inv A 2013
by 101dalmatians » Tue Mar 26, 2013 5:52 pm
If you follow that method that darksaber said but still get ur ans., you may have to use EXACT values rather than rounded ones...
I guess this signature really doesn't matter now that I know that the forum is going down soon...
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