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
allsm [11]
3 years ago
9

If x^2+2=3^2/3+3^-2/3 then prove that 3x^3+9x-8=0​

Mathematics
2 answers:
prisoha [69]3 years ago
8 0

here is the solution

gregori [183]3 years ago
6 0

Answer:

See below.

Step-by-step explanation:

x^2 + 2 = 3^2/3 + 3^-2/3

x^2 = 3^2/3 + 3^-2/3  - 2

x =  √(3^2/3 + 3^-2/3  - 2)

x = 0.748888296

Substitute for x  in  3x^3 + 9x - 8:

3( 0.748888296)^3 + 9( 0.748888296) - 8 = 0.

So it is proved.

You might be interested in
Please help!! The question is in the photo above​
MAVERICK [17]
Ffffffufhfhfjfhfhfjfj 14
8 0
3 years ago
Shane's money is 3:11 if Isabella has 33 dollars how much do shane and Isabella have together
grin007 [14]
3:11
S:I
?:33
So if Isabella has 33 dollars that means they did 11x3=33 so to find Shanes you would do 3x3=9 then add the two together which is $42 hope this helps
3 0
3 years ago
Which value goes in the empty cell?
Andrews [41]

Answer:

[See Below]

Step-by-step explanation:

If you replace the x with -1 and evaluate the function you get -5.

7 0
3 years ago
Read 2 more answers
Fill in the boxes to complete the addition. 3/5+1/4
Fynjy0 [20]

Answer:

3/5 + 1/4 = 17/20

Step-by-step explanation:

  • \frac{3}{5} + \frac{1}{4}
  • LCM is 20
  • \frac{12}{20} + \frac{5}{20}
  • \frac{17}{20}
7 0
2 years ago
Write a fraction that is equivalent to 6 divided by 27
faust18 [17]
27/6 because this shows that you are dividing 6 from 27.
5 0
3 years ago
Read 2 more answers
Other questions:
  • X + y = 6
    15·1 answer
  • Karen is paid $6.25 per hour. Last week she worked 4 hours on Monday, 3 ½ hours on Tuesday, 5 hours on Wednesday, 2 hours on Thu
    15·2 answers
  • B+2d=t <br> 7.05 + 2(16.85) = 40.75 is our solution correct?
    8·1 answer
  • For what value of x does 4x=(1/8)x+5
    15·1 answer
  • Determine whether the sequence converges or diverges. If it converges, give the limit.
    9·1 answer
  • Find the principal (positive) square root of 36. If necessary, round the answer to the nearest hundredth (two decimal places).
    14·1 answer
  • A cyclist travels 20 km per hour for 6 mins how much does he travel
    15·1 answer
  • 37. The volume of a box is 1344 cubie mches or in
    5·1 answer
  • Cuánto es mínimo común múltiplo de 87 y 69​
    12·1 answer
  • Slope <br>y intercept <br>x intercept​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!