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USPshnik [31]
3 years ago
14

Please solve the problem |x+1|+|x−2|=3

Mathematics
1 answer:
goldenfox [79]3 years ago
5 0

Answer:

{-1, 2}

Step-by-step explanation:

The quantity x + 1 changes sign at x = -1; equivalently, x + 1 = 0 when x = -1.

If x = -1, then |x+1|+|x−2|=3 becomes |-1 + 1| + |-1 −2|=3, which is TRUE.  So x = -1 is a solution.

If x = 2, then we have the equation |2 + 1| + |2 − 2|=3, or |2 + 1| = 3, which is TRUE.  So x = 2 is also a solution.

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Inessa05 [86]

Answer:(2,36)and (3,54)

Step-by-step explanation:

7 0
2 years ago
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Vitek1552 [10]

Answer:

7/10

Step-by-step explanation:

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8 0
3 years ago
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I need help please.
GuDViN [60]

Answer:

The factors of 2q²-5pq-2q+5p are (2q-5p) (q-1)....

Step-by-step explanation:

The given expression is:

2q²-5pq-2q+5p

Make a pair of first two terms and last two terms:

(2q²-5pq) - (2q-5p)

Now factor out the common factor from each group.

Note that there is no common factor in second group. So we will take 1 as a common factor.

q(2q-5p) -1(2q-5p)

Now factor the polynomial by factoring out the G.C.F, 2q-5p

(2q-5p) (q-1)

Thus the factors of 2q²-5pq-2q+5p are (2q-5p) (q-1)....

4 0
3 years ago
The length of a table is 6 feet. On a scale drawing, the length is 2 inches. Write three possible scales for the drawing.
Rus_ich [418]
A possible scale for the drawing can be 
1 inches : 3 feet.
2 inches : 6 feet 
or 3 inches to 9 feet
or 0.5 inches to 1.5 feet.

Hope this helps :)
6 0
3 years ago
The ratios in an equivalent ratio table are 3:12, 4:16, and 5:20. If the first number in theratio is 10, what is the Second numb
Zanzabum

Answer:

10:40

Step-by-step explanation:

As the left number increases by 1, the right number increases by 4. So as you can see, the left numbers go 3-4-5 while the right numbers go 12-16-20. So the answer is 10:40 because 10x4=40.

6 0
3 years ago
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