Answer:
q.7-first d no.ans
q.8- d option
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If you form a triangle with the points B and C as two of the points of the right angled triangle then you use Pythagoras to find the length of BC.
3^2+4^2=25
√25 = 5
So they had 17 left over and one Apple was cut into 8 slices. 8 goes into 17 2 times with one left over. So it would be 2 whole apples with 1 slice left over. So 17 slices converts to 2 wholes and 1 part (slice)
We can solve this equation by completing the square. Notice that
and
. Therefore, we can turn
into
. y, in this equation, only has one real solution: 4. So your answer would be (B).
You cant simplify that fraction
