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
Natasha_Volkova [10]
3 years ago
8

Find the inverse -4 a. -1/4 b. 1/4 c. 4 d. -4

Mathematics
2 answers:
Mnenie [13.5K]3 years ago
8 0

For this case we must find the inverse of the following number:

-4

By definition we have that the inverse of a number multiplied by the number gives us 1 as a result.

Let "x" be the inverse of -4, then:

x (-4) = 1\\-4x = 1\\x = - \frac {1} {4}

So, the inverse of -4 is- \frac {1} {4}

Answer:

- \frac {1} {4}

Wewaii [24]3 years ago
6 0

Answer:

c. 4

Step-by-step explanation:

To find the inverse of a number, x, then you end up getting -x.

x = -4

- ( -4 ) = 4

You might be interested in
X~4y=11 , 5x~7y=~10 system of equation using elimination to solve
tino4ka555 [31]
1x + 4y = 11 ⇒ 5x + 20y = 55
5x - 7y = -10 ⇒ <u>5x -   7y = -10</u>
                                 <u>27y</u> = <u>65</u>
                                  27     27
                                     y = 2¹¹/₂₇ 
                     x + 4(2¹¹/₂₇) = 11
                         x + 8²²/₂₇ = 11
                         <u>    - 8²²/₂₇  - 8²²/₂₇
</u>                                     x = 2⁵/₂₇
                              (x, y) = (2⁵/₂₇, 2¹¹/₂₇)
3 0
2 years ago
PLEASE HELP!!!<br> EQUATIONS!!! ASAP :)
mel-nik [20]
1)solve for y.

4x+y=7

Add -4x to both sides.

4x+y+−4x=7+−4x

y=−4x+7



2) solve for y.

y−5x=9

Add 5x to both sides.

−5x+y+5x=9+5x

y=5x+9



3) solve for y.

3y−15x=12

Add 15x to both sides.

−15x+3y+15x=12+15x

3y=15x+12

Divide both sides by 3.

3y/3=15x+12/3

y=5x+4




4) solve for y.

8x+2y=18

Add -8x to both sides.

8x+2y+−8x=18+−8x

2y=−8x+18

Divide both sides by 2.

2y/2=−8x+18/2

y=−4x+9
 



5 ) solve for y.

7x−y=35

Add -7x to both sides.

7x−y+−7x=35+−7x

−y=−7x+35

Divide both sides by -1.

−y/−1=−7x+35/−1

y=7x−35



6)  solve for y.

4x+1=9+4y

Flip the equation.

4y+9=4x+1

Add -9 to both sides.

4y+9+−9=4x+1+−9

4y=4x−8

Divide both sides by 4.

4y/4=4x−8/4

y=x−2



7)  solve for x.

y=5x−2x

Flip the equation.

3x=y

Divide both sides by 3.

3x/3=y/3

x=1/3y



8) solve for x.

r=x+9x

Flip the equation.

10x=r

Divide both sides by 10.

10x/10=r/10

x=1/10r



9) solve for x.

b=3x+9xy

Flip the equation.

9xy+3x=b

Factor out variable x.

x(9y+3)=b

Divide both sides by 9y+3.

x(9y+3)/9y+3=b/9y+3

x=b/9y+3



10)  solve for x.

w=2hx−11x

Flip the equation.

2hx−11x=w

Factor out variable x.

x(2h−11)=w

Divide both sides by 2h-11.

x(2h−11)/2h−11 = w/2h−11

x=w/2h−11
 

11) solve for x.

p=4x+qx−5

Flip the equation.

qx+4x−5=p

Add 5 to both sides.

qx+4x−5+5=p+5

qx+4x=p+5

Factor out variable x.

x(q+4)=p+5

Divide both sides by q+4.

x(q+4)/q+4=p+5/q+4

x=p+5 / q+4




12) solve for x.

m=9+3x−dx

Flip the equation.

−dx+3x+9=m

Add -9 to both sides.

−dx+3x+9+−9=m+−9

−dx+3x=m−9

Factor out variable x.

x(−d+3)=m−9

Divide both sides by -d+3.

x(−d+3)/−d+3=m−9/−d+3

x=m−9/−d+3


6 0
2 years ago
May someone please show me how to complete this problem? Thank you!
Evgesh-ka [11]
A. See the picture for steps

7 0
2 years ago
192 beads
nirvana33 [79]

Answer:

Step-by-step explanation:

b + n = 192

n = 5b

b + 5b = 192

6b = 192

b = 192/6

b = 32 <==== 5 beads per bracelet

n = 5b

n = 5(32)

n = 160 <==== 160 beads per necklace

8 0
3 years ago
Andrei wants to fill a glass tank with marbles, and then fill the remaining space with water. W(n) models the amount of water An
Troyanec [42]

Answer:

0.05

Step-by-step explanation:

We know that the number of marbles is represented by n.  We also know that as the number of marbles increases, the volume of water W(n) decreases, since 0.05n is subtracted.

Since 0.05n is subtracted from 32, then 32 must be the original amount of water used if there are no marbles.

Since the amount of water decreases by 0.05 times the number of marbles, the volume of each marble must be 0.05.

6 0
3 years ago
Read 2 more answers
Other questions:
  • How do you find the probability of the sum of 6 when rolling a die?
    10·1 answer
  • Which of the equations below represents a line parallel to the y-axis? A. x = 4 B. x = -y C. x = y D. x = 4y
    10·1 answer
  • Select the ONLY incorrect way the angle can be named
    10·1 answer
  • What is the slope of the line represented by the equation 4x+8y=4
    13·2 answers
  • I need to know how to find x
    13·1 answer
  • Please someone help me . ?2^3(2-4)+5(3-8)
    14·1 answer
  • Find the simple interest on a $3,219.00 principal, deposited for six years at a rate of 1.51%.
    14·1 answer
  • A wheel of radius 10 inches is rotating 20°/sec. What is the linear speed in in/sec and the angular speed in RPM? (Round your an
    11·1 answer
  • For a work banquet, Jack can spend no more than $200 on dessert. Fruit pies cost $9 each and cakes cost $20 each. Write the line
    6·1 answer
  • A thief steals a number of rare plants from a nursery. On the way​ out, the thief meets three security​ guards, one after anothe
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!