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
Evgen [1.6K]
3 years ago
9

What is the value of the rational expression x/x2-9 when x = –3?

Mathematics
2 answers:
kvasek [131]3 years ago
7 0

Answer:

undefined

Step-by-step explanation:

the value of the rational expression x/x2-9 when x = –3

Rational expression is \frac{x}{x^2-9}

To find the value of the rational expression at x=-3 , we plug in -3 for x

\frac{x}{x^2-9}

\frac{-3}{(-3)^2-9}

\frac{-3}{9-9}

\frac{-3}{0}

When the denominator becomes 0 then the expression is undefined

amid [387]3 years ago
3 0
You're answer is D.
-3/-3(2)-9
1(2)-9
2-9
7
so it is D
You might be interested in
Ron walks 22.5 in 5 hours finds his speed<br>​
Lostsunrise [7]

Answer:

his speed would be 4.5 miles per hour

Step-by-step explanation:

if you do the distance divided by the hours you will get the answer.

  22.5/5=4.5

7 0
2 years ago
Twice a number deceased by 7.translate in algebraic expressions​
Dafna1 [17]

Twice a number (2x) decreased by 7 (- 7).

2x - 7

Two times a specfic number (x) subtracted by 7.

8 0
3 years ago
Read 2 more answers
Please help
Drupady [299]

Answer:

56°

Step-by-step explanation:

2x+3x+5=90

5x=90-5

5x=85

x=85÷5

x=17

m<2=3x+5=3(17)+5=51+5=56

3 0
3 years ago
Whats a equation for a linear function that passes through the point (3,7) and (0,13).
allsm [11]

Answer:

Step-by-step explanation:

First do your x2-x1/y2-y1 to find slope, which is 0-3/7-13 = -3/-6 = 1/2

Then plug into point slope form (choose either point)

(y-13) = 1/2(x-0)

OR

(y-7) = 1/2(x-3)

3 0
3 years ago
If you can answer this, please help !
PolarNik [594]

Answer:

the total of angle's in traingle is 180

so 85+53+c=180

c=180-138

c=42

8 0
2 years ago
Read 2 more answers
Other questions:
  • Jim hikes 2/3 mile every 1/4 hour. How long will it take Jim to hike 24 miles? Explain.
    12·2 answers
  • A group of 40 children attend a baseball game. Each child received either a hotdog or a bag of popcorn. Hotdogs were $2.25 and p
    8·1 answer
  • Help ASAP Pythagorean tyoerem
    8·1 answer
  • mr. tuttle traveled 242 miles at the rate of 53 miles per hour how many hours did it take him to travel to his destination​
    12·2 answers
  • Bob has $150 in his savings account and saves $40 per month.
    14·2 answers
  • A research team at Cornell University conducted a study showing that approximately 10% of all businessmen who wear ties wear the
    8·1 answer
  • I need help on 12 and 13
    5·1 answer
  • HELP WILL GIVE BRAINLIEST!!!
    12·2 answers
  • What's the circumference of a circle with a diameter of 3 inches? Use 3.14 for pi
    12·1 answer
  • At 7-11, I get my change from a Slurpee in all nickels and pennies. If I get $0.87 in change, and a total of 31 coins, how many
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!