Answer:
£199.95
Step-by-step explanation:
100% - 69% = 31%
31% of £645
= 31/100 × £645
= 0.31 × £645
= £199.95
= £199.95 is the final answer as it cannot be rounded off to 2 DP.
To verify whether the diagonals are perpendicular to each other, we find the slope of each segment and we can see that the slopes should be opposite reciprocals of each other.This means, these segments are really perpendicular. This theorem can be verified through congruent angles present in the quadrilateral.
Using Venn probabilities, it is found that P(F) = -0.07, which is not a probability, as it is a negative value.
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- We have two events, E and F.
- Their probabilities are:

- The probabilities are related by the following equation:

- Replacing into the equation, we can find P(F).



P(F) = -0.07, which is not a probability, as it is a negative value.
A similar problem is given at brainly.com/question/21421475