A wealthy entrepreneur has a fortune worth £2 500 000 000. What power of 10 should this number be to when written in scientific
1 answer:
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Answer:
perpendicular
Step-by-step explanation:
If 2 lines are parallel then their slopes are equal
If 2 lines are perpendicular then the product of their slopes = - 1
Here
- ×
= - 1
Then the 2 lines are perpendicular
Given :
P(-9, -4), Q(-7, -1), R(-2, 5), S(-6, -1).
To Find :
The slope of line PQ.
Solution :
We know , slope is given by :
Therefore, the slope of line PQ is 2/3.
Hence, this is the required solution.