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Rina8888 [55]
3 years ago
13

Solve by factoring 6x^2 +13x -28 =0

Mathematics
2 answers:
Sauron [17]3 years ago
8 0

Answer:

x=4/3 or x=-7/2

Step-by-step explanation:

(3x-4)(2x+7)

Alik [6]3 years ago
4 0

Answer:

x=-7/2, x=4/3

Step-by-step explanation:

6x^2+13x-28=0

Multiply 6 and -28 to get -168

Find 2 numbers that multiply to 168 but add to 13

They are 21 & -8

Rewrite the equation into:

6x^2+21x-8x-28=0

Factor

3x(2x+7)-4(2x+7)=0

(3x-4)(2x+7)=0

3x=4

x=4/3

2x=-7

x=-7/2

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In fact, the probabilities of cooking in less than 20 or more than 30 sum up to 15%, which means that the remaining outcome (i.e. cooking time between 20 and 30) must complete this probability to 15, and in fact 15+85=100.

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Which equation has a graph that is a parabola with a vertex at (–2, 0)?
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Answer:

The vertex of a quadratic equation corresponds to the point where the maximum or minimum value is located.

If the function has a positive leading coefficient, the vertex corresponds to the minimum value.

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If the vertex is located at

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The possibilities are

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Step-by-step explanation:

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