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Romashka [77]
3 years ago
15

Number 21 ......................

Mathematics
1 answer:
IrinaVladis [17]3 years ago
5 0
The compound equation is -2<x<2 (or -1 is less than or equal to x, which is less than or equal to 1)
You might be interested in
5x + 3y=33 when y= 2x + 1
inn [45]
Hope that this helps.

3 0
3 years ago
X+8=-2<br><br> O A. x= 10<br> OB. x=-6<br> O C. x=6<br> OD. x= -10
MaRussiya [10]

Answer: option D

Step-by-step explanation:

X+8=-2

    x= -2-8 (you should make x the subject so you switch the +8 to the other

    x= -10                                                                   side which becomes -8)    

so you get -10 because, if both the numbers have the minus sign then you should add the two values which will be a negative answer. So your answer is option D  

5 0
2 years ago
Read 2 more answers
All I need is the answer. Will be marked brainiest if it is absolutely correct.
NARA [144]
What’s the question?
6 0
3 years ago
The measure of the supplement of an angle is three times the measure of the
gtnhenbr [62]
<h2>Answer:</h2>

<h3><em>x=45degrees</em></h3>

<h2>Step-by-step explanation:</h2>

Let the angle to be solved be x

Let the supplement/compliment by y

x+y=90 Complimentary angles add up to 90 degrees.

x+3y=180 Supplementary angles add up to 180 degrees, the other angle is thrice the other compliment.

Evaluating this as a system:

x+y=90 Isolate x:

x=90−y Input into the other equation:

(90−y)+3y=180 Combine like terms, isolate y and its coefficients:

2y=90 Isolate y

y=45 Input into the first equation:

x+45=90 Isolate x:

x=45degrees

5 0
3 years ago
Percent error between 20 and 16
Anna35 [415]

Answer:

25%

Step-by-step explanation:

\frac{(20-16)}{|16|}|×100

 \frac{4}{16}×100

=0.25×100

=25%

=25%error

8 0
2 years ago
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