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julia-pushkina [17]
2 years ago
9

John, who is 42 years old, has a nephew age 9. In how many years will the age of his nephew be one-fourth John's age. Solve alge

braically.
Mathematics
1 answer:
Andreyy892 years ago
6 0

Answer:

hope this is correct..........

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Solve for x in<br> 2 - 3(x + 4) = 8
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Answer:

x = -6

Step-by-step explanation:

2 - 3(x + 4) = 8

=> 3(x + 4) = 2 - 8 = -6

=> x + 4 = -6/3 = -2

=> x = -2 - 4 = -6

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If EF=7, AC=16<br>Geometry
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Write the expression of polynomial a given the roots:
Liono4ka [1.6K]

Answer:

So it looks like the given zeros are 2i and -3. We have to work backwards.

x = -3 and x = 2i

For -3, we know that out factored form before would have been x + 3

For 2i, that means we took the square root of negative number because it is imaginary. So that means out factored for x2 + 4

So if we put these together:

(x2 + 4)(x + 3) = x3 + 3x2 + 4x + 12

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Step-by-step explanation:

4 0
3 years ago
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Help me understand this pls
wolverine [178]

Step-by-step explanation:

14)

Simplifying

3m + 5 = 4m -10

Reorder the terms:

5 + 3m = 4m -10

Reorder the terms:

5 + 3m = -10 + 4m

Solving

5 + 3m = -10 + 4m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-4m' to each side of the equation.

5 + 3m + -4m = -10 + 4m + -4m

Combine like terms: 3m + -4m = -1m

5 + -1m = -10 + 4m + -4m

Combine like terms: 4m + -4m = 0

5 + -1m = -10 + 0

5 + -1m = -10

Add '-5' to each side of the equation.

5 + -5 + -1m = -10 + -5

Combine like terms: 5 + -5 = 0

0 + -1m = -10 + -5

-1m = -10 + -5

Combine like terms: -10 + -5 = -15

-1m = -15

Divide each side by '-1'.

m = 15

Simplifying

m = 15

(thank to <em>geteasysolution</em> . com

15)

xy+yz=xz

a+a+8=50

2a=42

a=21

a+8=29

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3 years ago
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