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oksano4ka [1.4K]
3 years ago
14

3e^0.5x=45 solve for x

Mathematics
1 answer:
Ivanshal [37]3 years ago
7 0

Answer:

18

Step-by-step explanation:

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2 years ago
The voltage V in a simple electrical circuit is slowly decreasing as the battery wears out. The resistance R is slowly increasin
hoa [83]

Answer:

\frac{dI}{dt}=-0.00016 A/s

Step-by-step explanation:

We are given that

By ohm's law

V=IR

R=389 ohm

I=0.03 A

\frac{dV}{dt}=-0.06V/s

\frac{dR}{dt}=0.07ohm/s

We have to find rate of change of current I means \frac{dI}{dt}

Differentiate the equation w.r.t t

\frac{dV}{dt}=\frac{dI}{dt}R+I\frac{dR}{dt}

Substitute the values then we get

-0.06=\frac{dI}{dt}\times 389+0.03\times 0.07

-0.06=389\frac{dI}{dt}+0.0021

-0.06-0.0021=389\frac{dI}{dt}

-0.0621=389\frac{dI}{dt}

\frac{dI}{dt}=\frac{-0.0621}{389}=-0.000160 A/s

Hence, the current I is changing at the rate=-0.00016A/s

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3 years ago
Help urgent please
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Answer:

C.   G(x) = (x+3)^3

Step-by-step explanation:

Inside the parenthesis, adding or subtracting numbers moves the shape along the x-axis. BUT signs have opposite effects. Adding a number moves the shape towards the negative side. Subtracting a number moves it to the positive side.

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Multiply [4 0 -1 2 -3 -1] multiplied by [0 1 -3 1] A. [0 4 -6 3 -3 4] B. [0 -4 -6 1 3 -4] C. [-4 4 -3 -1 6 -4] D. [0 4 -6 1 3 -4
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Answer:

\text{D. }\left[\begin{array}{cc}0&4\\-6&1\\3&-4\end{array}\right]

Step-by-step explanation:

It would be helpful to know the numbers of rows and columns, so we don't have to guess.

Any number of on-line calculators and/or graphing calculators can multiply these matrices for you. Excel and other spreadsheets can do this, too. Forming the 6 sums of 2 products is tedious to do by hand.

For example, the term in the product matrix at row 1 column 2 is the sum of products of the numbers in row 1 of the first matrix and column 2 of the second matrix:

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The attachment shows the matrix multiplication on a TI-84 calculator.

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