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
blagie [28]
3 years ago
7

Why does the multiplicative inverse of a number have the same sign as the number?

Mathematics
1 answer:
denis23 [38]3 years ago
7 0
<span>Look at the definition of multiplicative inverse. If two numbers are multiplicative inverses of each other, then by definition, their product will be equal to 1. And 1 is a positive number. If both numbers being multiplied are positive, then the result is positive. And of both numbers being multiplied are negative, then the result is still positive. But if one number is positive and the other is negative, then the result is negative. So if you want a positive result, then both numbers you're multiplying have to have the same sign. And since we want a result of 1 for multiplicative inverses and since 1 is positive, then the numbers being multiplied have to have the same sign.</span>
You might be interested in
Classify the system of equations -1/2 x = -2 - y
allsm [11]
Putting both equations into standard form, we have the system
  x -2y = 4
  x -2y = -12

The lines these equations describe are parallel.

5 0
3 years ago
I need some help please
Illusion [34]

Answer:

ill answer the answers asap in the comments section

6 0
2 years ago
Please help quickly! no bots!
Sliva [168]

Answer:

Question 2: 4th answer, Question 3: 3rd answer

Step-by-step explanation:

I think that is correct hope it helps!

3 0
2 years ago
Read 2 more answers
Help me please. Zoom in to see!
Dima020 [189]
Translation hope this helps man
4 0
3 years ago
Light travels 9.45 \cdot 10^{15}9.45⋅10 ​15 ​​ 9, point, 45, dot, 10, start superscript, 15, end superscript meters in a year. t
Anna [14]

We are given that the distance light travel is:

9.45 x 10^15 meters / year

 

And that there is:

3.15 x 10^7 seconds / year

 

So the distance light travels per second is:

distance = (9.45 x 10^15 meters / year) * (1 year / 3.15 x 10^7 seconds)

<span>distance = 3 x 10^8 meters / second</span>

6 0
3 years ago
Read 2 more answers
Other questions:
  • A school has two wings each of which is a rectangle or prism the school district is planning to instill air conditioning in the
    5·1 answer
  • Lily earned 317 pokemon go points. Sophia earned 25 times the amount of points lily earned. How many points did sophia earn?
    13·2 answers
  • Could you guys please help me with this
    8·2 answers
  • BRAINLIEST!!!!!!!!!!!!!!!!!!!!!
    12·2 answers
  • State the vertical asymptote of the rational function. f(x) =((x-9)(x+7))/(x^2-4)
    12·2 answers
  • When three squares are joined at their vertices to form a right triangle, the combined area of
    6·1 answer
  • Which point is the vertex for the graph of y = |x| + 2?
    8·1 answer
  • The cost of having a window fixed is $100 plus $20 per hour of labor. Using h for the number of hours of labor, write an express
    7·2 answers
  • HELP PLEASE DUE IN 3 MINUTES
    9·1 answer
  • The height of the tallest tower in a city is 800 feet. The height of the second tallest tower in the same city is 14% less than
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!