Answer:
The mechanic will need to finish in 4 hours.
Step-by-step explanation:
100+40=140
40+40=80
40+40=80
40
140 +80 + 80+ 40= 340
Answer:
330
Step-by-step explanation:
When we are at 30 degrees on the unit circle, we are at the point (/2, 1/2) so if we go to -30 degrees (330 degrees), we will be at point (-/2, -1/2).
Note: (cosine, sine)
Answer:
Step-by-step explanation:
Combine: and .
Simplify:
Combine (again.):
Move all terms containing to the <u>left</u> side of the equation.
Move all terms not containing to the <u>right</u> side of the equation.
Divide each term in by and simplify.