Dan had 52
shown work: 29 x 2=58 58-6=52
X ÷ 4 = 8
Multiply each side by 4
x = 32
He subtracted 4 from 12 and got 8
Answer:
x= -6
Step-by-step explanation:
Don't know if it's right, but do let me know! use percentage to visualise your workings. :)
Imagine the unit circle. The cot(theta) is a line from (0,1) to (-4,1). Imagine it is part of a triangle with the origin (draw it!).
Then the hypotenuse length is √(1+4²) = √17.
The sine rule says that sin(90)/√17 must equal sin(theta)/4, and sin(90)=1, so