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
Why is water so important to living organisms
solmaris [256]
If they don't have water they can die because they breathe water.
8 0
3 years ago
Read 2 more answers
Use the T-table below to determine 3 solutions to this equation: y = 2x
Jet001 [13]
The table is attached as a figure

The given equation is ⇒⇒⇒⇒ y = 2x
To solve this equation, we need to pick numbers from the table then this number will be substituted into the equation to find y
we need 3 solutions . so, we need to pick 3 numbers of x
From the table, let us choose x = 0
y = 2x
y = 2 * (0)
y = 0

From the table, let choose second value of x such as x = 1
y = 2 * (1)
y = 2

From the table, let choose third value of x such as x = -1
y = 2 * (-1)
y = -2

So, the picked three solutions are
y = 0  at   x = 0
y = -2  at  x = -1
y = 2 at  x = 1



3 0
4 years ago
A polling company reported that 5353​% of 10181018 surveyed adults said that rising gas prices arerising gas prices are "quite a
Sophie [7]

Answer: 540

Step-by-step explanation:

Given: A polling company reported that 53​% of 1018 surveyed adults said that rising gas prices are "quite annoying."

To find: The exact value of 53​% of 1018.

53\%\text{  of }1018 = \dfrac{53}{100}\times1018  [we divide a percentage by 100 to convert it into a fraction of decimal]

=\dfrac{53954}{100}=539.54\\\\\approx540

Hence, the 540  adults said that rising gas prices are "quite annoying."

Thus, the exact value = 540

8 0
3 years ago
Question 36 of 40
Ipatiy [6.2K]

Answer:

A. a line segment

Step-by-step explanation:

  • a ray is directing in one dxn, and has no end point
  • a plane is a closed, so more than 2 points
  • a vertex is a single point itself
4 0
3 years ago
Solve. <br><br> 6x − 8 = −44 <br><br> x =
fgiga [73]
I think the best value for x is -9 because 6 x -9 = 54, minus 8 equals -44.
3 0
3 years ago
Read 2 more answers
Other questions:
  • The price of a car has been reduced from $15,500 to $10,695. What is the percentage decrease of the price of the car?
    7·1 answer
  • Can you guys pls help me with this question
    14·2 answers
  • A cab charges $1.50 for the first mile and $0.50 for each additional mile. Write and solve an inequality to determine how many m
    11·1 answer
  • Order the set of numbers from least to greatest:
    11·1 answer
  • a) Spouses are asked about the number of hours of sleep they get each night. Upper A researcher wants to see if husbands get mor
    12·1 answer
  • 2 x (10 + 5)<br> 2 x 10 + 5<br> Which one is equivalent if not fine the value
    6·1 answer
  • 1. Is (2,1) a solution to the system of equations below?*<br> 1 point<br> x = 2y<br> x+y=3
    8·1 answer
  • 7070
    10·1 answer
  • Determine the slope and y intercept and write the equation in slope intercept form
    13·1 answer
  • Please help me asap:((((
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!