This is in the fourth quadrant where the cosine is positive
By pythagoras the hypotenuse is 5
so the cosine is 3/5 B
Answer:
Perpendicular is the direction of a surface wave
Step-by-step explanation:
Answer:
30 inches squared
Step-by-step explanation:
First, find the area of the entire frame using length times height. 9*6 is 54 inches squared. Then, find the area of the middle space the same way. 6*4 is 24 inches squared. Lastly, subtract the middle from the entire frame's area. 54-24 is 30 inches squared.
If lines a and b are parallel, then aº = 79º = dº = bº.
Answer:
add them up
Step-by-step explanation:
add 8 10 10 and 80 25 20
