Question

help please :) How long is the minute hand on a clock whose tip travels 15 cm from 1:15 to 1:30 to the nearest tenth?10.1 cm

9.5 cm

6.0cm

0.2 cm
A ship is traveling around the outside rim of an island surveying a good place to land. If it is 10 miles from a lighthouse at the center of the island and 45° from due north, how far has the ship traveled from the most northern tip of the island to the nearest tenth?

0.8 miles

4.5 miles

7.9 miles

12.5 miles

What are the sine, cosine, and tangent of 3 pi over 4 radians?

Answer 1

sin Θ = square root 2 over 2; cos Θ = negative square root 2 over 2; tan Θ = -1

sin Θ = negative square root 2 over 2; cos Θ = square root 2 over 2; tan Θ = 1

sin Θ = square root 2 over 2; cos Θ = negative square root 2 over 2; tan Θ = 1

sin Θ = negative square root 2 over 2; cos Θ = square root 2 over 2; tan Θ = -1