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
The first coordinate of the point ( - 3, 2) indicates the point is located
Tom [10]

Answer:

In the first coordinate

Step-by-step explanation:

6 0
3 years ago
3. What is the solution to the system of equations?
olga55 [171]
I think the answer is B but i could be wrong
3 0
3 years ago
A line with a negative slope is perpendicular to one of the lines shown. What is its slope? Use the graph shown below. The Slope
goblinko [34]

Answer:

  • The slope for the red line is decreasing and hence the slope must be negative. -1x or simply -x
  • The slope of the blue line is increasing and hence positive: 1/2x
  • The solution to the equation is the intercept (2,3)
  • Rate positively and give brainlist
7 0
3 years ago
Order the fractions from least to greatest.
pantera1 [17]

Answer:

that would be c

Step-by-step explanation:

is because it is least to greatest I hope this helps you

6 0
2 years ago
At a discount electronic store, Kristoff offered a salesperson $600 for a television and table. The offer includes the 8% sales
Alex73 [517]
B. 8% of 556 = 44.8
44.8 + 556 = 600 rounded.
8 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose we conduct a hypothesis test to determine if an exercise program helps people lose weight. We measure the weight of a ra
    13·1 answer
  • The product of 4 and a number ,increased by 22 is 146. What is the number ?
    5·1 answer
  • Jeff bought 10 cookies he ate 4 what percentage did he eat
    10·2 answers
  • You budget $200 for wooden planks for outdoor furniture. Cedar costs $2.50 per foot and pine costs $1.75 per foot. Let x = the n
    15·2 answers
  • What are three equivalent ratio for 12/14
    10·2 answers
  • I need help? Show ur work.
    13·2 answers
  • True or False The slope of a line can be found by finding the quotient of the change in y and the change in x.
    8·1 answer
  • Michaela runs to the end of her street and back in 90 s. Her brother, Jacob, walks to the end of the street and back in 3 min. T
    14·1 answer
  • Please help me <br> (both images are together)
    11·2 answers
  • Which of the following equations is the result of completing the square on x^2 - 6x - 9 = 0?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!