1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Solnce55 [7]
3 years ago
15

Which of the following values of x makes the rational expression below undefined? x-25/x+13

Mathematics
2 answers:
san4es73 [151]3 years ago
7 0
X-25 / x + 13
 For this case what you should know is that an indefinite expression are those in which mathematically no numerical value can be obtained.
 We have then that a division between zero causes an expression to be undefined.
 For x = -13 we have:
 (-13-25) / (- 13 + 13) = - 38/0 (undefined)
 Answer:
 x = -13
 d. -13

Contact [7]3 years ago
7 0

Answer:

Option D

Step-by-step explanation:

We will check each option for the given expression (x-25)/(x+13)

(A). for x = 13

(\frac{x-25}{x+13})=\frac{13-25}{13+13} =\frac{-12}{26}

So expression is defined.

(B). for x = 0

\frac{x-25}{x+13}=\frac{0-25}{0+13} =(\frac{-25}{13})

So expression is defined.

(C). For x = 25

(\frac{x-25}{x+13})=\frac{25-25}{25+13} =0

So expression is defined

(D). For x = -13

\frac{x-25}{x+13}=\frac{-13-25}{-13+13}=( \frac{-38}{0})

Function is not defined.

Option D is the answer.

You might be interested in
In the 2009-2010 school year in country A, there were 92,000 foreign students from country B. This number I 23% more than the nu
max2010maxim [7]

Answer:

\approx74796

Step-by-step explanation:

GIVEN: In the 2009-10 school year in country A, there were 92,000 foreign students from country B. This number is 23\% more than the number of students from country C.

TO FIND: How many foreign students were from country C.

SOLUTION:

Total foreign students from country B =92000

let the foreign students from country C be x

As the students from country B is 23\% more than the country C

Students from country B

92000=\frac{123}{100}x

x=\frac{9200000}{123}

x\approx74796

Hence the number of students from country C are 74796

8 0
3 years ago
Find the density of a 40 gram pyramid with rectangular base 5 x 6 cm and height 8 cm.
e-lub [12.9K]
Density is <u>mass</u>
                volume
With those dimensions, the volume of the pyramid is;
V = lw(h/3)
V = (5)(6)(8/3)
V = 80 cm^3

D = <u>   40 g    </u> = 1 g/cm^3
       80 cm^3
3 0
3 years ago
Read 2 more answers
razones y proporciones. un pelotero profesional ha bateado 14 imparables , en 40 turnos al bate . hallar la razón entre las vece
ElenaW [278]

Answer:

El pelotero ha bateado imparables en el 35% de sus intentos.

Step-by-step explanation:

Dado que un pelotero profesional ha bateado 14 imparables en 40 turnos al bate, para hallar la razón entre las veces que ha bateado imparables y los turnos que ha tenido que batear se debe realizar el siguiente cálculo:

14 / 40 = X

0.35 = X

0.35 x 100 = 35

Por lo tanto, el pelotero ha bateado imparables en el 35% de sus intentos.

5 0
3 years ago
Mr. Lew recorded the average length, in minutes, of phone calls received at work. He recorded the data in the box plots below. A
satela [25.4K]

Answer:

Time spent on professional calls is typically shorter but less consistent than time spent on personal calls.

Step-by-step explanation:

Professional calls are typically shorter (Median = 4 min) than personal calls (Median = 5 min).

However, they are less consistent (IQR = 5 min) than personal calls (IQR = 2 min).

 

6 0
3 years ago
Find the slope and y-intercept of the line. 18x + 4y = 112 A)-9/2; 1/28 B)-2/9 ; 28 C)18; 112 D)-9/2; 28
mrs_skeptik [129]

Answer:

The slope is -9/2 and the y intercept is 28

Step-by-step explanation:

We want to put this in slope intercept form

y = mx+b where m is the slope and b is the y intercept

18x + 4y = 112

Subtract 18x from each side

18x+4y-18x = -18x+112

4y = -18x+112

Divide each side by 4

4y/4 = -18x/4 +112/4

y = -9/2x + 28

The slope is -9/2 and the y intercept is 28

5 0
3 years ago
Other questions:
  • the radii of earth n pluto are 6,371 kilometers and 1,161 kilometers, respectively. approximately how many spheres the size of p
    8·2 answers
  • Write an equation of the line that passes through (2, -3) and is perpendicular to the line y=-2x-3
    9·2 answers
  • Please help me! Find the answer and earn 10 points
    10·1 answer
  • 13/14 as a decimal rounded to the nearest tenth
    12·1 answer
  • Monica and Michael both want to buy a scooter. Monica has already saved $25 and plans to save $5 per week. Michael has $16 and p
    5·1 answer
  • What is the solution to the equation
    11·2 answers
  • Solve fI the one variable using the distriputive property <br> -6(2+a)=-48
    11·1 answer
  • Solve this plsssssss
    9·1 answer
  • 2x+ 20 + 3x +40 =<br> 60 + 5X
    7·1 answer
  • How do we define transformation?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!