4 years ago

The diagram below is divided into equal parts. Which shows the ratio of unshaded sections to shaded sections

Mathematics

2 answers:

AURORKA [14]4 years ago

5 0

Answer:

5 to 1.

Step-by-step explanation:

There are 5 unshaded and one shaded section so it's

5:1.

Phantasy [73]4 years ago

5 0

Answer:

5 to 1

Step-by-step explanation:

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Lines DE and AB intersect at point C.What is the value of x?

Elis [28]

X=25 is the correct answer

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3 years ago

You want to draft a four player tennis team. There are eight players to choose from. How many different teams can you form?

Butoxors [25]

We want to make a 4 players team, and there are total 8 players. As we know the order of selection does not matter in a team of players, only the combination of players matters.

So we would use concept of Combinations and It will be choose 4 out of 8 players.

The formula for Combination is given as follows :-

$nCr = \frac{n!}{r!*(n-r)!} \\\\
Choose \;4 \;out \;of \;8 \;players \\\\
8C4 = \frac{8!}{4!*(8-4)!} = \frac{8!}{4!*4!} \\\\
8C4 = \frac{8*7*6*5*4*3*2*1}{(4*3*2*1)*(4*3*2*1)} = \frac{8*7*6*5}{4*3*2*1} =\frac{1,680}{24} = 70 \;combinations$