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Alinara [238K]
3 years ago
10

Given the inequality -8 < 2, explain what happens when you multiply or divide both sides by 2 and what happens when you multi

ply or divide both sides by -2.
Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
5 0

Hello!

The answer is below!

When you multiply or divide each side by 2, the signs stay the same. −16 < 4 and −4 < 1. When you multiply or divide by −2, the inequality sign reverses. 16 > −4 and 4 > −1.

-Hope i helped! :D

-Follow me on roblox! Username: PoTaTo1_001

-Have a great day! :)

Gnoma [55]3 years ago
3 0

Answer:

The inequality sign remains same while multiply or divide both sides by positive numbers.

The inequality sign changes while multiply or divide both sides by negative numbers.

Step-by-step explanation:

The given inequality is - 8 < 2.

Now, if we multiply 2 in both sides then - 16 < 4

Again, if we divide by 2 into both sides then  - 4 < 1

Therefore, the inequality sign remains the same while multiply or divide both sides by positive numbers.

Now, if we multiply -2 in both sides then 16 > -4

And, if we divide -2 into both sides then 4 > -1

Therefore, the inequality sign changes while multiply or divide both sides by negative numbers. (Answer)

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You randomly choose a number from 1 to 5 and a letter from A to D. Find the total number of possible outcomes.
kari74 [83]

Answer:

1a, 1b, 1c, 1d, 2a, 2b, 2c, 2d, 3a, 3b, 3c, 3d, 4a, 4b, 4c, 4d, 5a, 5b, 5c, 5d

20x2 = 40

Step-by-step explanation:

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4 0
3 years ago
X-2y+z=5 <br>3x+3y-2z=-6 <br>2x-y+3z=11 <br>find x+y+z
BartSMP [9]
      x - 2y + z = 5   | *2
 ⇒ 2x - 4y+ 2z=10
     3x + 3y - 2z = - 6     } I sum up these relations
--------------------------------
    2x+3x - 4y+3y+2z-2z=10-6
     5x - y = 4       (1)

    3x + 3y - 2z = - 6   | *3         ⇒ 9x + 9y - 6z = - 18
    2x - y + 3z = 11     | *2         ⇒ 4x - 2y + 6z= 22       I sum up these
                                              ----------------------------------
                                                ⇒ 9x+4x+9y-2y-6z+6z= 4
                                                     13x+ 7y= 4     (2)
I write (1) and (2)
5x - y = 4   | *7
35x - 7y= 28
13x+7y=4
48x = 32
x= 32/48=4/6 ( 32:8=4, 48:8=6)
x= 2/3
5x-y=4, 
5*2/3-y=4
y=10/3 -4=10/3-12/3=-2/3
⇒ y= - 2/3
x - 2y + z = 5
2/3 - 2*(-2/3)+z=5
2/3+4/3+z=5
6/3+z=5
2+z=5
z=3
x+y+z=2/3-2/3+3=3

x+y+z=3







3 0
3 years ago
Write 662 in scientific notation.
cluponka [151]
6.62 x 102 is the answer.
4 0
3 years ago
What is the answer for 6a + 5a = -11
gayaneshka [121]
A= -1
You add the 6a and 5a.
Your equation is then 11a= -11
At this point you divide each side by 11 to get "a" by itself.
7 0
3 years ago
Read 2 more answers
help pls i have 7 of these question 100 points there is a part 2 to this question i will be making another one 100 points as wel
nlexa [21]

Answer:

  1. y=x
  2. y=x-2
  3. y=2x+10
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Whenever finding a rule, figure out what x+1 relates to in terms of y (aka the slope). Also, figure out the y-intercept (0,<em>y</em>)

<u>Example:</u>

x+1 = y+2.

Slope: 2 ÷ 1 = 2.

The y-intercept is (0,9)

This would make the rule y=2x+9

6 0
2 years ago
Read 2 more answers
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