Answer:
Step-by-step explanation:
Notice that the wave completes 3 oscillations at 
. This means that the period is:
Since the frequency is the reciprocal of the period, we get:
So the frequency is:
supplement means the sum of the two angles is 180° → y = 180 - x
complement means the sum of the two angles is 90° → y = 90 - x
supplement - 3(complement) = 46
(180 - x) - 3(90 - x) = 46
(180 - x) - 270 + 3x = 46
2x - 90 = 46
2x = 136
x = 68
Answer: 68°
Answer:
x = 11
Step-by-step explanation:
so you divide 38 by 19 and get 2. NOw, you multiply x + 7 and get 2x + 14. then you set 3x + 3 equal to 2x +14 and solve for x.
Answer:
45 sq cm
Step-by-step explanation:
A triangle has an area of half of a rectangle if it has the same base and height.
