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
bazaltina [42]
3 years ago
12

What is the answer to x2 = 121.

Mathematics
2 answers:
algol133 years ago
6 0

Step-by-step explanation: A common mistake in this problem would be to say that if x² = 121, x must equal 11.

However, you must set the equation equal to 0 first.

So our first step is to subtract 121 from both sides to get x² - 121 = 0.

Next, factor the left side to get (x + 11)(x - 11) = 0

So either x + 11 = 0 or x - 11 = 0.

Solving each equation from here, we find that x = -11 or x = 11.

So our answer is not just 11, it's {11, -11}.

jolli1 [7]3 years ago
5 0

Answer:

11 if you mean x^2

Step-by-step explanation:

Since we are solving for x, we need to just get x by its self. The only thing we have to do is get rid of the exponent of (^2). to do this, we have to take teh square root of both sides:

The square root of x^2 is x

The square root of 121 is 11

So the asnwer is x = 11

You might be interested in
Help i really need help plss
Andrei [34K]

Answer:

Modern:عشرين

Answer:

Ancient Egypt:

Two Upside down U’s

4 0
2 years ago
18. Describe how to plot point A(-6, 2) on a coordinate plane.
Setler79 [48]

Answer:

To plot point A, you would count over to the left six places on the x-axis. Then, count up two places on the y-axis.

8 0
2 years ago
It cost $120 to buy the materials for crown molding in the completed office. (Crown molding is the decorative border where the w
scoundrel [369]

Answer:75

Step-by-step explanation:

4 0
2 years ago
Which of the following statements has the same truth value as the statement "If it is Friday, then Bruce has beans for supper."?
german
<span>If Bruce does not have beans for supper, then it is not Friday.</span>
6 0
3 years ago
Many school districts have a summer vacation that is 72 days long. What percent of the entire year is summer vacation?
damaskus [11]

It is 19.73% because you do 72/365

365 days a year to get the answer

I hope this helps!

7 0
3 years ago
Other questions:
  • B2 = 5, h = 3, and A = 12 b1=
    9·1 answer
  • Write the linear inequality shown in the graph.The gray area represents the shaded region.
    15·2 answers
  • What’s the correct answer for this?
    14·2 answers
  • 1/2 divided 1/4 Help me​
    13·2 answers
  • What is the mean of the set of numbers? –12, –4, 3, 7, 11
    5·2 answers
  • The volume of this figure is ...................................... cubic in
    5·1 answer
  • Leon's older brother is 4 3/4 feet tall. Leon is 1/3 foot shorter than his brother . How tall is leon?
    8·2 answers
  • HELP ME WORTH 10
    14·1 answer
  • Math help please show work due in 1 hour please help :3
    9·2 answers
  • Malcolm buys a 5/6- pound bag of black beans and a 3/4- pound bag of pinto beans. how many pounds of beans does Malcolm buy in a
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!