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guajiro [1.7K]
3 years ago
11

Tom practiced piano 1 1/3 hours on Monday and 5/6 hours on Tuesday. how much did he practice in all those two days

Mathematics
1 answer:
Strike441 [17]3 years ago
4 0
I believe the answer is 4.5 hours
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Stella [2.4K]

Step-by-step explanation:

Take the natural log of both sides:

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Logarithm rules allow you to bring down the exponents:

yln(x) = xln(y)

Now differentiate. We will have to implicitly differentiate 'y' since it is a function of 'x'. Both sides require the product rule:

\frac{dy}{dx} ln(x) +  \frac{y}{x}  = ln(y) +  \frac{x}{y}  \frac{dy}{dx}

Isolate the terms that have y' since that is what we want:

\frac{dy}{dx} ln(x) -  \frac{x}{y}  \frac{dy}{dx}= ln(y) - \frac{y}{x}

Factor out y' to get:

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\frac{dy}{dx} =  \frac{ln(y) -  \frac{y}{x} }{ln(x) -  \frac{x}{y} }

7 0
2 years ago
PLEASE PLEASE HELP!!
Black_prince [1.1K]

Answer:

It is right

Step-by-step explanation:

square all sides

we have 16, 32, 48

add the two shortest sides, which equal the third side

the triangle works with the pythagorean theorem, so of course it is right :)

7 0
3 years ago
Find the distance and midpoint for the points (5,5) and (1,2).
stealth61 [152]

Answer:

midpoint = (3,3.5)

distance = 5

Step-by-step explanation:

midpoint = (x1+X2/2, y2+y2/2)

=(5+1/2, 5+2/2)

=(6/2, 7/2)

=(3, 3.5)

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=√(1-5)^2 -(2-5)^2

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5 0
3 years ago
Hal earns $5 a week doing chores for his parents. He also earns $10 a week for each dog.d, he walks,
Alexxandr [17]

Answer:

grpuirpfs better luck next time

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is -3/5 x -10/21?
sammy [17]
The answer would be 2/7!
7 0
4 years ago
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