Answer:
546
Step-by-step explanation:
Answer:
2. X = 13 1/3
Step-by-step explanation:
(3/2) times x - 4 = 16/ - 16
(3/2) times x - 16 - 4 = 0
3/2 times x - 20 = 0/ + 20
3/2 times x = 20 / : 3/2
x = 20/3/2
x = 40/3 = 13 1/3
follows from the fact that the cosine function is
-periodic, which means
. Roughly speaking, this is the same as saying that a point on a circle is the same as the point you get by completing a full revolution around the circle (i.e. add
to the original point's angle with respect to the horizontal axis).
If you make another complete revolution (so we're effectively adding
) we get the same result:
. This is true for any number of complete revolutions, so that this pattern holds for any even multiple of
added to the argument. Therefore
for any integer
.
Next, because
, it follows that
is also true for any integer
. So we have
The rest follows from considering either case and solving for
.
Answer:
Draw a double bar graph for the given information.
Class 5th 6th 7th 8th 9th
No. of Boys 20 40 25 35 20
No. of Girls 30 35 20 25 40
I hope it is helpful...
Answer: 6.824%
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