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kifflom [539]
3 years ago
11

The function f is defined by f(x)=2x^2-4. Find f(-x)

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
6 0
First of all, since all powers of x in this function are even, the entire function is even.  Thus, using -x as input doesn't change the function.  Thus, f(-x)=2x^2-4.

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A container built for transatlantic shipping is constructed in the shape of a right rectangular prism. Its dimensions are 7 ft b
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Given:

Dimensions are 7 ft by 5 ft by 8.5 ft

Contents weigh 0.21 pound

Contents worth $8.80 per pound

Find-: value of container contents.

Sol:

Volume is:

\begin{gathered} Volume\text{ = }7\times5\times8.5 \\  \\ =297.5 \end{gathered}

The formula of density is:

\text{ Density =}\frac{\text{  Mass}}{\text{ Volume}}

So,

\begin{gathered} 0.21=\frac{\text{ Weight  of contents in container}}{\text{ Volume of container}} \\  \\ 0.21=\frac{\text{ Weight}}{297.5} \\  \\ 0.21\times297.5=\text{ Weight} \\  \\ \text{ Weight of contents in container = }62.475\text{ Pound} \end{gathered}

Now $8.80 per pound

For 62.475 pounds the value is:

\begin{gathered} =62.475\times8.80 \\  \\ =549.78 \end{gathered}

So the value of the container contents is 549.78

7 0
1 year ago
Find The Value Of X.
Aleksandr-060686 [28]

Answer:

Tan 30 =, 14/x

Then x= 14/tan 30

So x=14 root 3

6 0
3 years ago
Find the area of a triangle with a base length of 3 units and a height of 4 units.
eduard
A = 1/2bh
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Hope this helps!
4 0
3 years ago
Please help!<br><br> Find the equation of this line.
rosijanka [135]

Answer:

y = 1/3x + 2

Step-by-step explanation:

Slope - Intercept Form = y = mx + b

y - intercept = b = 2 (point of intersection of the y-axis)

m = slope

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You can see that as the graph goes up by 1, it goes to the right 3, so slope = 1/3

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Equation : y = 1/3x + 2

-Chetan K

8 0
3 years ago
Read 2 more answers
What is the value of x?<br><br><br><br> Enter your answer in the box.<br><br> x =
melisa1 [442]

The two angles are vertical angles, which means they are the same.

Set the two equations to equal and solve:

2x +2 = 3x -52

Subtract 2x from each side:

2 = x -52

Add 52 to each side:

x = 54



7 0
3 years ago
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