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
Maslowich
3 years ago
5

Find all real numbers for which the rational expression is undefined. (Enter your answers as a comma-separated list. If no value

s make the expression undefined, enter NONE.) 6x-19/x2 - 81
Mathematics
1 answer:
Marianna [84]3 years ago
6 0

Answer: +9, -9

Step-by-step explanation: The rational expression in this case is undefined if the the denominator is equal to zero, which means that the x cannot be whatever makes the denominator zero, so:

x² - 81 = 0 ⇒ x² = 81 ⇒ x = +/- √81 ⇒ x = +/- 9

Note that we are using the equal sign just because this particular problem askes for a solutions that is undefined.

You might be interested in
Helppp i need answer now will give points
Papessa [141]

Answer:

f(g(3)) = 3

Step-by-step explanation:

We are told to solve for f(g(3)). This is also saying f of g of 3.

To find f(g(3)), we need to plug 3 in for x in g(x), since it says g(3).

g(x) = 3(3) - 4

Solve.

= 9 - 4

g(x) = 5

Now, we plug that into f(x), because g(x) was placed inside f and replaces the x variable of f(x).

f(5) = 2(5) - 7

Solve.

= 10 - 7

f(5) = 3.

f(g(3)) = 3

#teamtrees #WAP (Water And Plant)

4 0
3 years ago
Hey y’all, could you please help me answer these 2 questions. I would also like the working out please~
sergij07 [2.7K]

Answer: 12.34

Step-by-step explanation:

7 0
3 years ago
Question 1-4
aalyn [17]

Answer:

step 2 to step 3

Step-by-step explanation:

step 2

2x - 7 = 3 ( add 7 to both sides )

2x = 10 ( error was made here in that they had - 4 )

7 0
3 years ago
Sarah is dividing 1/4 pound of cashews and 1/2 pound of almonds into five plastic bags what fraction of a pound of nuts will be
Svetach [21]

turn 1/4 into .25

turn 1/2 into. 50

.25÷5=0.05

.50÷5=0.1

0.05+0.1=0.15

write your answer as 15/100 nuts per baggie

8 0
3 years ago
Match the Vocab Word to the definition. PLZZZ HELP
kobusy [5.1K]

Answer:

post the whole page please. I cant see it

3 0
3 years ago
Other questions:
  • Jakie mad 6 quarts of lemonade. Jackie says that she made 3 pints of lemonade. Exspain her error
    15·2 answers
  • The metric system is now known as the international system of units.<br> true or false
    13·2 answers
  • The area of a parking lot is 805 square meters. A car requires 5 meters and a bus requires 32 square meters of space. There can
    7·1 answer
  • Complete the square to determine the minimum or maximum value of the function defined by the expression. −x2 + 18x − 99
    10·2 answers
  • Martha Jackson had a $396.25 average monthly expenditure for clothing during the first quarter of the year. She spent $401.50 in
    12·1 answer
  • If AB=CB then B must be the midpoint of AC
    12·1 answer
  • What is the slope of the line that passes through the points (-4,8) qnd (-14,8)
    6·2 answers
  • A hemisphere has a volume of 381.7 inches .what is the radius of the hemisphere
    10·2 answers
  • PLZ ANSWER ASAP I GIVE BRAINLIEST
    8·1 answer
  • Will mark brainliest for 2 possible answers (NO LINKS OR ANSWERS WITHOUT EXPLANATION)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!