Answer:
Step-by-step explanation:
Given that:
and
To find:
Solution:
First of all,we have cos value as negative and tan value as positive.
It is possible in the 3rd quadrant only.
will lie in the 2nd quadrant so will be negative again.
Because Cosine is positive in 1st and 4th quadrant.
Formula:
Here
But as we have discussed, will be negative.
So, answer is:
1. 5 and E, 6 and F, 7 and D, 8 and A, 9 and G
Answer:
Vertical is straight up and down line or object
Perpendicular is more at an angle of 90 degrees to a line, plane, or surface ect
The probability is 5/343.
Given :8 floors and 4 passengers.
Passengers will be assumed to start on the first floor, where everyone goes up, and each passenger only gets off on the 2nd floor (no one gets off on the 1st floor!)
Now we need to find the number of all ordered lists of four numbers out of seven, eg 2<3<7<8, 3<6<7<8, 4<5<6o<8, etc.
This can be done in 7C4 ways.
The total numbers of ways 4 passengers can get off at 7 floors (starting at the 2nd!) is .
Therefore the probability is =
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2^2 - 5t + 12 = 0
4 - 5t + 12 = 0
-5t + 16 = 0
-5t = -16
t = 16/5
Answer: 16/5 in fraction form or 3.2 in decimal form