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
Anastasy [175]
4 years ago
10

What is equivalent to

\sqrt{ - 81} " alt="13 - \sqrt{ - 81} " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Radda [10]4 years ago
7 0
√- 81 doesn't result in a rational number because you can't get a negative from squaring any number. Instead you get a number with an imaginary number. 

13 - √- 81 = 13 - 9i
You might be interested in
What kind of motion do people have on an escalator
stepladder [879]

Answer:

Not everyones is the same just before I begein explaing.. A lot of people get motion sick some don't some like going on them

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Select the correct answer from each drop-down menu. In the figure, . Angles are congruent . ∠GAC ≅ ∠AFE because they are corresp
Hoochie [10]

Answer:

∠GAC ≅ ∠HFD by the Property of Congruence.

Step-by-step explanation:

I'm going to be honest the question is a little confusing cause of the beginning, but if you're looking for which angles are actually congruent it's ∠GAC ≅ ∠HFD

8 0
3 years ago
Write a word problem for the equation. <br> 1/2 (x-4) = 1/3x + 2
Ganezh [65]

Answer:

Half the age of Carlos four years ago is 2 years more than one-third his current age.

Step-by-step explanation:

We want to write a word problem for the equation.

\frac{1}{2} (x - 4) =  \frac{1}{3}x + 2

Let x represent the present age of Carlos.

Four years ago, Carlos was x-4 years.

Half his age four years ago is ½(x-4)

Two years more than one-third his current age is ⅓x+2

3 0
4 years ago
Tina is saving to buy a notebook computer. She has two options. The first option is to put $500 away initially and save $30 ever
Jlenok [28]
First option:
y=money saved
x=number of months

y=30x+500

Second option:

y=50x+200

We have this system of equations:

y=30x+500
y=50x+200

We can solve this system of equations by equalization method
30x+500=50x+200
30x-50x=200-500
-20x=-300
x=-300/-20
x=15

so;
y=30x+500
y=30(15)+500
y=450+500
y=950

Answer; after 15 months, she would save the same amount using either option, the amount saved in either option will be $950. 
3 0
3 years ago
Solve for n.<br> 1–3n=<br> –<br> 9+n+2
iris [78.8K]

Answer:

Step-by-step explanation:

1-3n=-9+n+2 ---> -3n-n=-1+-9+2 --> -4n=-8 ---> n=2

3 0
3 years ago
Other questions:
  • What is a 3 2/3 model example?
    8·1 answer
  • The length of a park is 2/5 miles and the area is 9/10 square miles. What is the width of the park?
    7·1 answer
  • The planet mercury takes 56.6 earth days to rotate once around its axis. About how many times does it rotate around its axis dur
    5·1 answer
  • Jan's age is 3 years less than twice tritt's age. The sum of their ages is 30. Find their ages.
    11·2 answers
  • What is the slope of a line that passes through the points (-2, 4) and (-6, 12)?
    14·2 answers
  • Susan is celebrating her birthday by going out to eat at five guy's for burgers. If the bill in $40 and she wants to leave a tip
    12·1 answer
  • Which represents the solution(s) of the system of equations, y = x2 – 2x – 15 and y = 8x – 40? Determine the solution set algebr
    5·1 answer
  • What is the formula for finding the length of a line on the cartesian plane.​
    7·1 answer
  • Determine the domain on which the following function is decreasing.
    6·1 answer
  • An airplane is flying from New York City to Los Angeles. The distance it travels in miles, d, is related to the time in seconds,
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!