3 years ago

What is x - 3(1-x) = 47 - x

Mathematics

1 answer:

lozanna [386]3 years ago

7 0

Solve for x by simplifying both sides of the equation, then isolating the variable.

x = 10

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0.2(x + 1) + 0.5x = -0.3(x - 4)?

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plz help whats the answer to this question !!! calculate the mass of a gold bar that is 18.00cm long, 9.21cm wide, and 4.45cm hi

erik [133]

We have to find the mass of the gold bar.

We have gold bar in the shape of a rectangular prism.

The length, width, and the height of the gold bar is 18.00 centimeters, 9.21 centimeters, and 4.45 centimeters respectively.

First of all we will find the volume of the gold bar which is given by the volume of rectangular prism:

Volume of the gold bar $= length \times width\times height$

Plugging the values in the equation we get,

Volume of the gold bar $=18.00 \times 9.21 \times 4.45= 737.721cm^3$

Now that we have the volume we can find the mass by using the formula,

$Mass= density \times volume$

The density of the gold is 19.32 grams per cubic centimeter. Plugging in the values of density and volume we get:

$Mass = 19.32\times 737.721=14252.769$ grams

So, the mass of the gold bar is 14252.769 grams

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3 years ago

Y=f(x)=(4)^x find f(x) when x=-1

nexus9112 [7]

when x = -14

f(-1) = 4^-1 = 1 / 4^1 = 1/4

Answer

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melomori [17]

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