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AfilCa [17]
3 years ago
12

Can you please help me answer this picture​

Mathematics
2 answers:
Nana76 [90]3 years ago
8 0

Answer:

Step-by-step explanation:

b + 2 = b + 2

Dafna11 [192]3 years ago
5 0

Answer:

A

Step-by-step explanation:

b+2=b+2 has infinite solutions

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satela [25.4K]

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Solve the following pair of equations by elimination method: x+y=4, 2x+y=3​
allsm [11]

Answer:

x = 1

y = 5

Step-by-step explanation:

x + y = 4 __ (1)

2x + y = 3 __ (2)

equation (1) x 2, (2) x 1

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y= 5 (ANS)

x + y = 4

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I HOPE MY ANSWER IS CORRECT IF NOT I APOLOGIZE.

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1 year ago
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Jlenok [28]

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3q/2

Step-by-step explanation:

3p+3q=p

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6 0
3 years ago
Find a third-degree polynomial equation with rational coefficients that has the roots 2 and -3 + i.
NeTakaya

Answer:

Option B

Step-by-step explanation:

Complex roots occur as conjugate pairs so the third root is -3 - i ( note that the sign changes from + to -).

So in factor form we have:-

(x - 2)(x - (-3 + i))(x - (-3 - i)) = 0    Let's expand the last 2 factors first:-

(x - (-3 + i))(x - (-3 - i))

= (x + 3 - i)(x + 3 + i)

= x^2 + 3x +ix + 3x + 9 + 3i - ix - 3i - i^2

= x^2 + 6x + 9 - (-1)

= x^2 + 6x + 10

Now multiplying by (x - 2):-

(x - 2)(x^2 + 6x + 10) = 0

x^3 + 6x^2 + 10x - 2x^2 - 12x - 20 = 0

x^3 + 4x^2 - 2x - 20 = 0    (answer)

Option B

5 0
3 years ago
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