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LenaWriter [7]
3 years ago
12

1. The value -2 is a lower bound for the zeros of the function shown below. f(x)=4x^3-12x^2-x+15

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
3 0
First is false i believe
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d = r * t

d/t = r

-35.75 / 3.25 = r

-11 = r

r = -11 ft / min

d = r*t

d = -11 ft/min * 1 min

d = -11 ft

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3 years ago
C is the midpoint of BD. If BC = x + 7 and CD = 8x, what is CD?
Anastaziya [24]

<u>Given </u><u>:</u><u>-</u><u> </u>

  • C is the midpoint of BD .
  • BC = x + 7
  • CD = 8x

<u>To </u><u>Find</u><u> </u><u>:</u><u>-</u>

  • Value of BD ( correct )

<u>Answer</u><u> </u><u>:</u><u>-</u><u> </u>

As C is the midpoint , we can say that the line is BCD . So that ,

  • BC + CD = BD

Substitute the values ,

  • ( x+7 ) + 8x = BD
  • BD = x + 8x + 7
  • BD = 9x + 7 .

<u>Hence</u><u> the</u><u> </u><u>value</u><u> of</u><u> </u><u>BD </u><u>is </u><u>9</u><u>x</u><u> </u><u>+</u><u> </u><u>7</u><u> </u><u>.</u>

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A casual stroll burns 180 calories per hour. How long will it take to stroll off the 504 calories contained in a​ hamburger?
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Answer:

90 min

Step-by-step explanation:

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3 years ago
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