3 years ago

I really don't understand this! Can someone give an explanation to me?

Mathematics

1 answer:

Pani-rosa [81]3 years ago

8 0

Step-by-step explanation:

Total number of Black cards is 26

Total number of cards having a ten is 4 out of which 2 are red

Number of favourable outcomes=28

TOTAL number of possible outcomes =52

Therefore the probability = 28/52 = 7/13

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To 3 decimal places.

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3 years ago

How do I do this? 50 points, please answer

xz_007 [3.2K]

Check the picture below.

now, the midsegment of a triangle, besides being half the base, we have to bear in mind that is a "mid" segment, is a segment that lies half-way along the segments it touches.

so for the triangle above, well, the midsegment DE is cutting the segment BC it two equal halves, BE and EC, that means that $\stackrel{x}{BE}~~ = ~~\stackrel{8}{EC}$ .