# Tutor profile: Kristen M.

## Questions

### Subject: Trigonometry

Someone leans a 10-foot ladder on a wall at a 45-degree angle. How high up on the wall would the ladder land?

Sin(45)=x/10 10*Sin(45)=5*sqrt(2) feet or approximately 8.5 feet

### Subject: Geometry

The point A = (2,-3) is rotated about the origin 90 degrees clockwise. What are the coordinates of the new point A’?

(-3,-2)

### Subject: Algebra

THE MUSIC DOWNLOAD PROBLEM Name_______________ You love to listen to music and would love to download songs as often as you can! But, you’re not sure you’re getting the best deal on song downloads. Find different subscriptions and prices below: iTunes single song purchase $1.29 per song Spotify Premium $9.99 per month with unlimited downloads and offline listening SoundWaves $2.99 per month plus $0.75 per download for offline listening Choose the Subscription that would make the most sense for you. Justify your answer by comparing your choice to the other passes and give an explanation

iTunes would have an equation that looks like y=1.29x, Spotify would have an equation that looks like y=9.99, and soundwaves would have an equation that looks like y=0.75x+2.99 if we look at the price of music subscriptions for 1 month. By graphing or solving this system of equations using substitution or elimination If students download less than 6 songs a month iTunes purchases is the best choice If students download 6-9 songs a month SoundWaves will be the best choice. If students download more than 9 songs a month Spotify Premium will be the best choice.

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