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mixas84 [53]
1 year ago
9

How can i solve them

Mathematics
1 answer:
Mariulka [41]1 year ago
4 0

Answer:

2x²+x-15=0

Step-by-step explanation:

A=L×W

12cm²=(2x+3)(x-1)

12=2x²-2x+3x-3

12=2x²+x-3

2x²+x-3-12=0

2x²+x-15=0

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Calvin encoded a secret phrase using matrix multiplication. Using A = 1, B = 2, C = 3, and so on, he multiplied the clear text c
Vlad1618 [11]
Our matrix C is the encoder.  Let X be our secret message and let B be our encoded message.  Therefore the relationship between the 3 can be represented as:

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3 years ago
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Pavlova-9 [17]
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Estimate how much farther sound travels through stone in 17 seconds than through a aluminum in the same time
aev [14]

Sound travels 10200m farther through stone in 17 seconds than through aluminium

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Time taken = 17 minutes

Distance traveled = Speed  x  Time

Distance traveled by sound in aluminium in 17 seconds  = 3100    x  17

Distance traveled by sound in aluminium in 17 seconds  = 52700 m

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Difference in the distance traveled = 10200 m

Sound travels 10200m farther through stone in 17 seconds than through aluminium

Learn more here: brainly.com/question/13096122

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2 years ago
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Lady_Fox [76]

Answer:

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\frac{\sqrt{4} }{4} = 0.5

and

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3 0
3 years ago
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