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
defon
1 year ago
12

Rational exponents; what do i do???

Mathematics
1 answer:
Marta_Voda [28]1 year ago
6 0

Answer:

x = -\dfrac{48}5

Step by step explanation:

~~~~~~~\dfrac{x^2+12x+36}{2x^2}-\dfrac{x^2 +7x +12}{2x^2}= \dfrac 5{4x}\\\\\\\implies \dfrac{x^2 +12x +36 -x^2 -7x -12}{2x^2 } = \dfrac 5{4x}\\\\\\\implies \dfrac{5x+24}{2x^2} = \dfrac 5{4x}\\\\\\\implies 4x(5x+24) = 5(2x^2)\\\\\\\implies 20x^2+96x= 10x^2\\\\\\\implies 20x^2 -10x^2 +96x=0\\\\\\\implies 10x^2 +96x= 0\\\\\\\implies 5x^2 +48x = 0\\\\\\\implies x(5x+48)=0\\\\\\\implies x = -\dfrac{48}5~~~~~;[x\neq 0]

You might be interested in
A truck can travel 1200 miles on 80 gallons of gasoline. how far can it travel on 240 gallons of gasoline ? Show your work
pogonyaev

Answer:

3600 miles on 240 gal

Step-by-step explanation:

80 gal can go 1200

160 gal can go 2400

240 gal can go 3600

7 0
2 years ago
Read 2 more answers
to convert feet per minute to inches per second which of the following conversion factors would be used select all that apply
Arisa [49]

1 feet = 12 inches

1 min = 60 s

1 feet/min = 12 in/60 s = 1 in/5 s = 0.2 in/s

7 0
3 years ago
An electrician has 4 meters of wire.How many strips 7/10 meter long can he cut?
Sonbull [250]

Answer:

4/7/10

40/7 which is equal around 5. something...round

5 is your answer

Step-by-step explanation:

6 0
3 years ago
On Monday Luke’s business lost $15. on Tuesday it made $8 .on Wednesday it broke even what is the total profit or loss during th
Andreas93 [3]

Answer:

He lost 7 dollars

Step-by-step explanation:

4 0
3 years ago
What is the elimination of 20x+5y=120 and 10x+7.5=80
Grace [21]
20x+5y=120
10x+7.5y=80    multiply this one by 2
___________

20x+5y=120
20x+15y=160   subtract 

___________

        -10y=-40    divide both sides by -10 
____________

             y=4         

20x+5(4)=120   plug 4 in for y in the first equation 
20x+20=120     multiply 
20x=100           subtract 
x=5                   divide to find x




 
5 0
3 years ago
Other questions:
  • Suppose the a mountain bike that sells for $419 is on sale for 20.5% off.
    11·1 answer
  • Steven ran for class president against Mandy. Steven Recieved 5 votes for every 3 votes that Mandy Recieved. Mandy Recieved 420
    7·1 answer
  • Solve 3(x - 2) < 18.
    12·1 answer
  • The perimeter of a rectangle is 98 m. The length of the rectangle is 9 m more than four times the width. Find the dimensions of
    9·1 answer
  • Write an expression that is the product of two factors and is equivalent to negative 5xminus30. Which expression is the product
    8·1 answer
  • Arizbeth spent $20.08 to put 8 gallons of gas in her car. How much would 13 gallons have cost?
    5·1 answer
  • Evaluate the integral using integration by parts with the indicated choices of u and dv. (Use C for the constant of integration.
    5·1 answer
  • If the vertex of a parabola is (2,3), what is the axis of symmetry?
    13·1 answer
  • 3. Find the length of time in years, given the principal of $4,800; interest rate
    14·1 answer
  • The area is ___ square units
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!