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Zielflug [23.3K]
1 year ago
12

Find all values of the variable

Mathematics
1 answer:
labwork [276]1 year ago
6 0

The values of x for which the rational expression is undefined are -6 and -8.

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a rational function:

\rm f(x) = \dfrac{3x+20}{x^2+14x+48}

As we know in the rational function denominator cannot be zero:

The values of x for which the rational expression is undefined.

x² + 14x + 48 = 0

\rm x_{1,\:2}=\dfrac{-14\pm \sqrt{14^2-4\cdot \:1\cdot \:48}}{2\cdot \:1}

\rm x_1=\dfrac{-14+2}{2\cdot \:1},\:x_2=\dfrac{-14-2}{2\cdot \:1}

x = -6, -8


Thus, the values of x for which the rational expression is undefined are -6 and -8.

Learn more about the function here:

brainly.com/question/5245372

#SPJ1

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The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 3 to 2 . If there were
aleksandrvk [35]

Answer:

Step-by-step explanation:

4690/x = 5/2

cross multiply

(4690)*(2)=5*x

9380=5x

Divide both sides by 5.

x=1876

there were 1876 votes of "no"

(brainliest please?)

7 0
3 years ago
Write the equation 3x+2=4x²​ in standard form.
nignag [31]

Answer:

Write the Equation in Standard Form 3x+2=4x^2. 3x+2=4x2 3 x + 2 = 4 x 2. To write an equation in standard form, move each term to the left side of the equation ...

Missing: 4x²​ ‎| Must include: 4x²​

Step-by-step explanation:

Write the Equation in Standard Form 3x+2=4x^2. 3x+2=4x2 3 x + 2 = 4 x 2. To write an equation in standard form, move each term to the left side of the equation ...

Missing: 4x²​ ‎| Must include: 4x²​

8 0
3 years ago
PLZ dont ignore me! I need help on this :(
uysha [10]
Answer: It’s the second one!

Explanation: The dot is open and pointing to the side of the numbers greater than -3. It has to be an open dot because it is “greater than -3” not “greater than or equal to-3”! :)
4 0
3 years ago
Measure (7x+1) (2x+1)
Gemiola [76]

Smaller angle = 41°

Larger angle = 139°

Step-by-step explanation:

(7x - 1) + (2x + 1) = 180

7x + 2x - 1 + 1 = 180

9x = 180

x = 20

  • The measure of the smaller angle is

2x + 1

= 2(20) + 1

= 40 + 1

<u>= 41°</u>

  • The measure of the larger angle is

7x - 1

= 7(20) - 1

= 140 - 1

<u>= 139°</u>

4 0
3 years ago
Read 2 more answers
Rewrite the expression 7x+21=
Dima020 [189]
Minus the 21 from the other side of the equation making it 7x=-21 then u divide the 7 from the x to the -21 resulting in x=-3
5 0
3 years ago
Read 2 more answers
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