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
VLD [36.1K]
3 years ago
10

Solve for x: 3x²-243​

Mathematics
1 answer:
mylen [45]3 years ago
7 0

3x²–243=0 —> 3 (x²–81) = 0 —>

x²–81=0 —> (x-9)(x+9)=0

x-9=0 —> x=9

x+9=0 —> x=–9

I hope I helped you^_^

You might be interested in
a. Un equipo de tenis de mesa ganó 21 juegos y perdió 12 juegos, ¿cuál es la razón entre ganados y perdidos?
True [87]

Answer:

The ratio between won and lost is \frac{7}{4}

Step-by-step explanation:

<u><em>The question in English is</em></u>

A table tennis team won 21 games and lost 12 games, what is the ratio between won and lost?

Let

x ------> the number of games won

y -----> the number of games lost

we have

x=21\ games

y=12\ games

we know that

To find the ratio divide the number of games won by the number of games lost

so

\frac{x}{y}

substitute the values

\frac{21}{12}

Simplify

\frac{7}{4}

4 0
4 years ago
6. Solve the equation x2 = 80.
jonny [76]

Answer:

40

Step-by-step explanation:

80/2=40

4 0
3 years ago
Read 2 more answers
If it doesn't give me the perimeter, how do i find x from this? thank you!​
Mariulka [41]

The way the angles are labeled tell you that they are all congruent. The two triangles you see here also share the side that joins them. Then by the angle-side-angle postulate, the two triangles are congruent, so x + 23 = 13, or x = -10.

6 0
3 years ago
What is a supplement angle
s2008m [1.1K]

Answer: either of two angles whose sum is 180°.

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
Help me because I need to get a 10/10
kvv77 [185]
Option 4 I believe !
8 0
3 years ago
Read 2 more answers
Other questions:
  • Question 1 help needed
    9·1 answer
  • An office building has the same number and size of offices on each floor. If there are 24 offices total on the first 3 floors, t
    12·2 answers
  • 0=2x+3(3x-4)-(-x+14)<br><br> Fraction answer need help!!!
    8·1 answer
  • What is the expression if you for 45 minutes a day
    10·1 answer
  • negative binomial rv is the number of failures that occur before the rth success in a sequence of independent and identical succ
    7·1 answer
  • Find the number of possible choices for a 3-digit PIN (personal identification number) if the digits CAN be repeated.
    6·1 answer
  • Can you solve (4x-3)/(x+2)+(15)/(x-3)
    13·2 answers
  • Functions describe a ____ between two values.
    9·1 answer
  • S = 40, u<br> 12, mZS = 37
    11·1 answer
  • What is 7.5% as a fraction
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!