Answer:
21/24 as a decimal is 0.875
Step-by-step explanation: Please brainliest!
sin(2Θ) = 2cosΘsinΘ
sinΘ=opposite/hypotenuse=8/17
adjacent = (17^2 - 8^2)^1/2 =15
sin(2Θ) = 2cosΘsinΘ = 2 *(15/17)*(8/17)= 240/289
opposite of 2Θ equals 240
hypotenuse of 2Θ equals 289
adjacent of 2Θ = (289^2 - 240^2)^1/2 = 161
cos(2Θ) = 161/289
tan(2Θ) = 240/161
Answer:
C. 9
Step-by-step explanation:
15/100*60
3/20*60
180/20
9
Supplementary, and if they have a sum of 90 they are complementary.