Answer:
because they add up to 90 and a right angle is 90 itself which would give you 180
Answer:
Step-by-step explanation:
h=7mm
Answer:
amplitude = 3
Step-by-step explanation:
the amplitude is the vertical distance from center of the wave to the crest or the trough
25. 6 cents for each ounce
Answer:
6+8x
Step-by-step explanation: