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il63 [147K]
4 years ago
12

Alonzos art class is 9 hours long. how long is his class in minuts

Mathematics
1 answer:
Anika [276]4 years ago
5 0

Answer:

540 minutes

Step-by-step explanation:

There are 60 minutes in one hour so 9x60=540

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Answer:

A. 13

Step-by-step explanation:

2(x - 3) + 3y

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[Quick Answer Needed] Which of the following shows the extraneous solution to the logarithmic equation?
Nitella [24]

Answer:

C

Step-by-step explanation:

Given the logarithmic equation

\log_4x+\log_4(x-3)=\log_4(-7x+21)

First, notice that

x>0\\ \\x-3>0\Rightarrow x>3\\ \\-7x+21>0\Rightarrow 7x

So, there is no possible solutions, all possible solutions will be extraneous.

Solve the equation:

\log_4x+\log_4(x-3)=\log_4x(x-3),

then

\log_4x(x-3)=\log_4(-7x+21)\\ \\x(x-3)=-7x+21\\ \\x^2-3x+7x-21=0\\ \\x^2+4x-21=0\\ \\D=4^2-4\cdot 1\cdot (-21)=16+84=100\\ \\x_{1,2}=\dfrac{-4\pm 10}{2}=-7,\ 3

Hence, x=3 and x=-7 are extraneous solutions

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3 years ago
Is (4•6)^3 equivalent to 4•6^3
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4 years ago
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