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3 years ago

Use the function below to find f(–4). f(x) = 2x

Mathematics

2 answers:

Tcecarenko [31]3 years ago

6 0

Replace x with -4 so it would be:
f(-4)= 2(-4)=-8
-8 is your answer

Shtirlitz [24]3 years ago

4 0

Answer:

Find out the value of f(–4) by using the function f(x) = 2x .

To prove

As given the function in the question as follows

f(x) = 2x

Now find for f(–4) .

Put x = - 4 in the function given above

Thus

f(-4) = 2× -4

Simplify multiply 2 and -4 .

f(-4) = -8

Therefore the value of f(–4) is -8 by using the function f(x) = 2x .

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A watering can contained 512 quarts water. After all the plants were watered, only 4 cups remained. How many cups of water were

Sedaia [141]

Answer:

2044 cups

Step-by-step explanation:

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convert the capacity of the watering can to cups

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3 years ago

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3 years ago

(½) (6x + 3) = 7 – (3x + 1)

erastovalidia [21]

$\tt Step-by-step~explanation:$

To solve for x, we have to remember to isolate the variable.

$\tt Step~1:$

For 1/2, we can make that 0.5, since their values are equivalent. Our equation:

$\tt (0.5)(6x+3)=7-(3x+1)$

Let's distribute the 0.5 first.

$\tt 0.5*6x=3x\\0.5*3=1.5$

$\tt Step~2:$

Now, let's simplify the right side of the equation. We have to distribute the negative to 3x and 1.

$\tt -1*3x=-3x\\-1*1=-1$

Then, we simplify the entire expression.

$\tt 7-3x-1=-3x+6$

$\tt Step~3:$

Our equation now:

$\tt 3x+1.5=-3x+6$

Let's add 3x to the right and 3x to the left to simplify the -3x on the right side of the equation.

$\tt 3x(+3x)+1.5=-3x (3x)+6\\6x+1.5=6$

$\tt Step~4:$

Let's do the same thing we did in Step 3 to 1.5. Subtract 1.5 on both sides of the equation.

$\tt 6x+1.5(-1.5)=6(-1.5)\\6x=4.5$

$\tt Step~5:$

Finally, we divide both sides by 6 to isolate x.

$\tt \frac{6x}{6} =x\\\frac{4.5}{6}= 0.75~or~\frac{3}{4}$

$\large\boxed{\tt Our~final~answer:~x=0.75~(or~\frac{3}{4})}$

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3 years ago

What is 3/2 in a mixed number

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Bonjour ,

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2 years ago

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