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3 years ago

What is the domain of f? HELP PLEASE

Mathematics

1 answer:

Oxana [17]3 years ago

8 0

Answer:

-7 to 7

Step-by-step explanation:

it is the range of the x values

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Equations

sergij07 [2.7K]

Answer:

2x+12=24

first you subtract 12 from both sides

2x+12=24

-12. -12

The 12-12 should cancel itself, the rest of the equation you bring down to get

2x=12 (because 24-12=12)

Now you have 2x=12.
you then divide 2x by both sides.

2x=12

/2x=/2x

The 2x/2x cancels itself out so you then solve for 12/2x.

For this you just divide 12/2 which is 6!

x= 6 is your final answer.
to check this equation you can plug your number back into x to see if it is true! 2(6)+12=24.
6 times 2 is 12 and 12+12 is 24 so your answer (6) is true!

hope this helps! :D

4 0

2 years ago

Read 2 more answers

Hi, can you share your experience with me ? So what do you do when you'e bored ?

Sauron [17]

Listening music and watching some movies

5 0

3 years ago

1 5/16 tons as a decimal

liubo4ka [24]

The answer is 1.3125

6 0

3 years ago

A rectangular prism has a length of 10 in., a width of 2 in., and a height of 3 1/2 in. The prism is filled with cubes that have

zalisa [80]

Answer:

2.5

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

What is the area of the given figure?

kirza4 [7]

$\huge\boxed{192\ \text{in}^2}$

There are three parts to this figure: a rectangle and two triangles that are congruent.

We'll add together the area for each to get the total area.

We'll start by finding the area of the rectangle. We don't know its length, so we need to find the bases of the triangles and add them together.

We know that $a^2+b^2=c^2$ . Substitute and solve for $a$ :

$\begin{aligned}a^2+6^2&=10^2\\a^2+36&=100\\a^2+36-36&=100-36\\a^2&=64\\\sqrt{a^2}&=\sqrt{64}\\a&=8\end{aligned}$

Now, double this to get the total length of the rectangle, which is $16$ inches.

The area of the rectangle is equal to its length times its height:

$16\cdot9=\underline{144}$

Now, we'll find the area of one of the triangles and double it since they're congruent.

The area of a triangle is one-half of its base times its height, which we then double.

$2\left(\frac{1}{2}\cdot b\cdot h\right)$

The $2$ and the $\frac{1}{2}$ cancel each other out.

$b\cdot h$

Substitute and solve:

$8\cdot6=\underline{48}$

Finally, add the rectangle's area to the two triangles' area.

$144+48=\boxed{192}$

6 0

2 years ago