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Mariana [72]
3 years ago
8

(4x + 8x - 5) + (3x2 + 6x - 7)

Mathematics
1 answer:
ch4aika [34]3 years ago
5 0

Answer:

7x^2 + 14x - 12

Step-by-step explanation:

Add like terms:

(4x + 8x - 5) + (3x2 + 6x - 7) becomes:

  4x^2 + 8x - 5               or (grouping like terms in columns):

+ 3x^2 + 6x - 7

---------------------

 7x^2 + 14x - 12

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a purse contains 25p coins and 50 p coins. the total amount in the purse is rs.25. if the number of 50 p coins is double the num
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Let the total no. of 25 p coins be x
50p coins = 2x 

Value of 25 p coins ( in rupees) = 0.25*x =0.25x
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0.25x+x = 25
1.25x =25
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3 years ago
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3 years ago
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A professor has 24 pairs of socks in his drawer. 18 pairs are black and the rest are brown. He always wears black pants. He does
lesya692 [45]

Answer:

The likelihood that the professor's socks matched his pants on both days is 0.5625

Step-by-step explanation:

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We are supposed to find he likelihood that the professor's socks matched his pants on both days i.e. Black socks both days.

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3 years ago
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Answer:

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