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
Kobotan [32]
3 years ago
13

How many numbers are reciprocal of themselves?

Mathematics
1 answer:
const2013 [10]3 years ago
6 0

Answer:

  two: +1 and -1

Step-by-step explanation:

If a number is equal to its own reciprocal, it will satisfy the equation ...

  x = 1/x

Multiplying by x and subtracting 1 gives ...

  x^2 -1 = 0

This factors as ...

  (x -1)(x +1) = 0

By the zero product rule, the solutions are those values of x that make one or more factors zero:

  x = 1

  x = -1

There are two self-reciprocals.

You might be interested in
Help me someone smart
nasty-shy [4]

Answer:

18: b. y= -x+6

19: c. y-3=2(x-3)

Step-by-step explanation:

i hope this helps :)

3 0
3 years ago
Which of the following equations could be used to solve the given equation? 9x + 26 + 7x - 17 = 2x + (-3x) + 5x
gavmur [86]

\left(\mathrm{Decimal:\quad }x=-0.75\right)



hope it helps :P


4 0
3 years ago
Read 2 more answers
Five consecutive odd integers whose sum is 85
Katen [24]

Answer:

13,15,17,19,21

Hope I helped! ☺

7 0
3 years ago
How can we use a distributive property by a CALCULATOR
nika2105 [10]
You can't use distributive property by a calculator
7 0
3 years ago
Read 2 more answers
The estimate obtained from a sample of which size is likely to be closest to the actual parameter value of a population?
Leno4ka [110]

Answer:

184

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Xcubed3plus+77xsquared2plus+22xminus−4040​; xplus+5
    6·1 answer
  • A right isosceles triangle
    7·1 answer
  • Question
    12·1 answer
  • Please help. This question is on geometric sequences
    11·1 answer
  • Which Expression is equivalent to the expression (3^2)^3?
    10·1 answer
  • What L is alternate interior at L6?<br><br> A. L3<br> B. L5 <br> C. L1<br> D. L4
    12·1 answer
  • WILL BRAINLIST<br> Given the points (-4, 6) and (1, -2) find the slope.
    6·2 answers
  • HELP
    5·1 answer
  • Please help!! graph y=-4/3x+8
    13·1 answer
  • On a coordinate plane, point A is (negative 4, negative 1), point B is (negative 4, 1), point C is (5, negative 1), and point D
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!