-1 / 7 = x
You need to combine the 2x and 5x then devise the 7x from -1
4) In triangle, angle opposite to perpendicular is 90-60 = 30
So, tan Ф = P/B
tan 30 = a / 6
1/√3 = a/6
a = 6/√3
a = 2√3
Now, cosФ = B/H
cos 30 = 6/b
√3/2 = 6/b
b = 6*2/√3
b = 12/√3
b = 4√3
In short, Your Answer would be a = 2√3 and b = 4√3
Hope this helps!
<u>Answer:</u>

<u>Explanation:</u>
Before we begin, remember that:
(
)ⁿ = 
This means that power is distributed in case of division
The given is:

Applying the above rule, we would get:
= 
Hope this helps :)
Answer:
NO
Step-by-step explanation:
always look at the number after point
Answer:
Random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen
Step-by-step explanation: