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3 years ago

Plz help me on this!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

hram777 [196]3 years ago

7 0

Answer:

1. 12y+20

2. $15c^{2}$ -18c

3. 18d-12

4. x=9

Step-by-step explanation

Hope this helps. I'm very sorry if I'm wrong

Naya [18.7K]3 years ago

6 0

Answer:

For example, the probability of choosing a male who prefers sports cars is 39/240 or 16%. The probability of choosing a male is 60/180 = 25%.

Two Way Relative Frequency Table. To convert counts into relative frequencies, divide the count by the total number of items. In the above table, the first count is for men / Rom-com (count=6), so 6/60 = 0.1.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago

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shepuryov [24]

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Read 2 more answers

A King in ancient times agreed to reward the inventor of chess with one grain of wheat on the first of the 64 squares of a chess

maxonik [38]

Answer:

Total weight of the wheat placed on 45th square will be = $1.26\times 10^{6}tons$

Step-by-step explanation:

King rewarded the inventor of chess by giving grain of wheat on every square of the chess board. He places one grain of wheat on first square, 2 on second, 4 on 3rd, 8 on 4th and so on.

In fact he places grains of wheat in a progression S = 1, 2, 4, 8, 16.........n terms where value of n is 64.

We can rewrite the progression as S = 2°, 2, 2², 2³,.........n terms (n = 64)

In a geometric progression we know the nth term = $a(r^{n-1})$