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jeka57 [31]
3 years ago
8

Kevin said that if you triple his age the result will be 1 less than his mother age

Mathematics
1 answer:
Ivahew [28]3 years ago
8 0
Basically, this problem is saying that if you multiply x by 3, then you will get a number that is one less than y. So, if you switch that around a bit, then the problem is saying that if you subtract 3x from y, you'll get 1. 

Your final answer should be y - 3x = 1.
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Please help me with this one.​
Degger [83]

Answer:

  2x^2 -x +1 = 0

Step-by-step explanation:

For roots α and β, the original equation can be factored as ...

  f(x) = 2(x -α)(x -β)

If we add 1 to each of those roots, the factors become ...

  g(x) = 2(x -(α+1))(x -(β+1))

This can be rearranged to be ...

  g(x) = 2((x -1) -α)((x -1) -β)

That is, we can get the desired equation by replacing x with x-1, effectively shifting the function right one unit.

  2(x -1)² +3(x -1) +2 = 0

  2x^2 -x +1 = 0

5 0
3 years ago
Use synthetic division to solve (x^4 – 1) ÷ (x – 1). What is the quotient?
Alenkinab [10]
Quotient is:

{ x }^{ 3 }+{ x }^{ 2 }+x+1

Remainder: 0

Answer and workings in the attachment below.

8 0
3 years ago
Read 2 more answers
Collins was 7 years 3 months old when he joined school. Today he is 13 years and 2 months. For how long has he been in school?
ivann1987 [24]

Answer:

He is about 6 years old (5 years 11 months)

Step-by-step explanation:

13 - 7 and 3 - 2

4 0
2 years ago
What type(s) of symmetry does the figure have? (Check all that apply.)
monitta

2 Answers:  A) line symmetry and B) rotational symmetry

=====================================================

Explanation:

We have line symmetry because we can draw a vertical line down the center, and this is a mirror line. One half folds over the vertical line to match up with the other half. There are other lines of symmetry as well.

We also have rotational symmetry because we can rotate the figure some amount of degrees and have it line up with its original image. The before and after will be identical. This applies to any regular polygon.

8 0
3 years ago
What is 5(x-1)= 20(x-10)
Dmitry [639]
X = 41/5 or 8 1/5 my guyyyyyyyy
7 0
3 years ago
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