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inn [45]
4 years ago
5

Solvex2 - 8x + 12 =0 for x. The solutions for x are and

Mathematics
1 answer:
Marianna [84]4 years ago
3 0

Answer:

2 and 6

Step-by-step explanation:

First factor x from the expression

x^2-2x-6x+12=0

x(x-2)-6x + 12=0

Then factor out x-2 from the expression

x(x-2)-6x + 12=0

(x-2)(x-6)=0

When the product of factors equals 0, at least one factor is 0

(x-2)(x-6)=0

x-2=0

x-6-0

And so

X=2

X=6

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Step-by-step explanation:

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5 0
3 years ago
The pendulum swings at an arc of 30 cm and its successive swings reduced to 10% of the previous swings. What is the total distan
OleMash [197]

Answer:

S_g=  33.333cm

Step-by-step explanation:

From the question we are told that

Arc of 30 cm

10% reduction after each swing

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    S_g=\frac{a(1-r^n)}{1-r}

Mathematically solving for total distance traveled we have

    S_g=\frac{30(1-(0.10^5)}{1-(0.10)}

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3 0
3 years ago
Which is the definition of a ray?
zlopas [31]

Answer:

a part of a line that has one endpoint and extends indefinitely in one direction

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a ray has one endpoint, then has an arrow going indefinitely in one direction.

8 0
3 years ago
The expression below is the factorization of what trinomial?
Lapatulllka [165]
The answer is:  [A]:   45x² + 81x + 36 .
_________________________

Explanation:  Use "FOIL" technique: (First, Outer, Inner, and Last Terms); 
                       then, combine the "like terms", to simplify. 
__________________________________________

(5x+4)(9x+9) = 45x² + 45x + 36x + 35 = 45x² + 81x + 36 .
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________________________________________________
6 0
4 years ago
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