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jok3333 [9.3K]
3 years ago
5

12 in. 7 in. 18 in. 25 in. What is the area

Mathematics
1 answer:
emmainna [20.7K]3 years ago
7 0

Answer: 37,800

Step-by-step explanation:

if its a triangle then divide this by 2 and if not then id.k

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WILL MARK BRAINLIEST <br><br> what is the domain of (f/g) (x)?
tatyana61 [14]

Given that f(x) = \sqrt{7-x} and g(x) = \sqrt{x + 2}, we can say the following:

\Bigg(\dfrac{f}{g}\Bigg)(x) = \dfrac{f (x)}{g(x)} = \dfrac{\sqrt{7 - x}}{\sqrt{x+2}}


Now, remember what happens if we have a negative square root: it becomes an imaginary number. We don't want this, so we want to make sure whatever is under a square root is greater than 0 (given we are talking about real numbers only).


Thus, let's set what is under both square roots to be greater than 0:

\sqrt{7 - x} \Rightarrow 7 - x \geq 0 \Rightarrow x \leq 7

\sqrt{x + 2} \Rightarrow x + 2 \geq 0 \Rightarrow x \geq -2


Since both of the square roots are in the same function, we want to take the union of the domains of the individual square roots to find the domain of the overall function.

x \leq 7 \,\,\cup x \geq -2 = \boxed{-2 \leq x \leq 7}


Now, let's look back at the function entirely, which is:

\Bigg( \dfrac{f}{g} \Bigg)(x) = \dfrac{\sqrt{7 - x}}{\sqrt{x+2}}

Since \sqrt{x + 2} is on the bottom of the fraction, we must say that \sqrt{x + 2} \neq 0, since the denominator can't equal 0. Thus, we must exclude \sqrt{x + 2} = 0 \Rightarrow x + 2 = 0 \Rightarrow x = -2 from the domain.


Thus, our answer is Choice C, or \boxed{ \{ x | -2 < x \leq 7 \}}.


<em>If you are wondering why the choices begin with the x | symbol, it is because this is a way of representing that x lies within a particular set.</em>

6 0
3 years ago
What is the simplified base for the function f(x) = 2(7272x)?<br> 02<br> O 3<br> O 9<br> O 18
Tomtit [17]

Answer:

C, the answer is nine iajfjsifnsbfjroajdjaidjsbfbsja

8 0
3 years ago
Read 2 more answers
Find the domain of fg
vazorg [7]
We have the following functions:
 f (x) = x ^ 2 + 1
 g (x) = 1 / x
 Multiplying we have:
 (f * g) (x) = (x ^ 2 + 1) * (1 / x)
 Rewriting:
 (f * g) (x) = ((x ^ 2 + 1) / x)
 Therefore, the domain of the function is given by all the values of x that do not make zero the denominator.
 We have then:
 All reals except number 0
 Answer:
 
b. all real numbers, except 0
7 0
3 years ago
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A sphere with center A is shown. Which represents a radius?
Lunna [17]
A because radius is half of the diameter
5 0
3 years ago
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Solve the equations and graph the solution
jenyasd209 [6]

Given:

The inequalities are:

-5x or 2x

To find:

The solution for the given inequalities and graph the solution.

Solution:

We have,

-5x or 2x

Solve the above inequalities separately.

-5x

Divide both sides by -5.

x>\dfrac{-3}{-5}

x>\dfrac{3}{5}             ...(i)

And,

2x

Divide both sides by 2.

x

x                       ...(ii)

From (i) and (ii). we get

x or x>\dfrac{3}{5}

The interval notation of the solution is (-\infty,-4)\cup \left(\dfrac{3}{5},\infty\right).

The graph of the solution is shown below.

7 0
2 years ago
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