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ValentinkaMS [17]
3 years ago
11

X^2 + 11x + 28 = 0 please help gotta make this longer

Mathematics
1 answer:
RideAnS [48]3 years ago
5 0

Answer:

x= -7       x = -4

Step-by-step explanation:

x^2 + 11x + 28 = 0

What two numbers multiply to 28 and add to 11

7*4 = 28

7+4 =11

(x+7) (x+4) =0

Using the zero product property

x+7 =0   x+4 =0

x= -7       x = -4

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We need to figure out how much string would be left, after taking away the first two pieces.
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The second piece is between 12 and 18 inches, meaning that there would be between 32-12 and 32-18 inches left for the third piece, or 20 and 14 inches. This means that the third piece would be at least 14 inches long, but no more than 20, since we don’t have more string than that (20+12+20=52, and 20+14+18=52)

So we can say that x is greater or equal to 14, but less than or equal to 20, or:

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4 0
3 years ago
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rodikova [14]

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3 years ago
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murzikaleks [220]

Answer:

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8 0
3 years ago
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Which of the following is the graph of the piecewise function
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By analyzing the piecewise function, we conclude that the first graph is the correct one,

<h3>Which of the following is the graph of the piecewise function?</h3>

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With that, we can discard the last two graphs.

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If you want to learn more about piecewise functions:

brainly.com/question/3628123

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1 year ago
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