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Svetach [21]
3 years ago
6

1) x-1+5

="absmiddle" class="latex-formula">+3=0
4) x^{4} -64=0
Mathematics
1 answer:
TEA [102]3 years ago
6 0

Answer:

See explanation below

Step-by-step explanation:

Find the value of x in each of the following

1) x-1+5√x-1+3=0

5√x-1 = -x -2

Square both sides

25(x-1) = (-x-2)^2

25(x-1) = x^2+4x + 4

25x-25 = x^2+4x + 4

x^2 +4x + 4 - 25x + 25 = 0

x^2 - 21x + 29 = 0

x = 21±√21²-4(29)/2

x = 21±√441-116/2

x = 21±√325/2

x = 21±18.03/2

x = 21+18.03/2 and 21-18.03/2

x = 19.515 and 1.485

4)  x^4-64=0

x^4 = 64

x = \sqrt[4]{64}

x = 2.83

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Answer:

Step-by-step explanation:

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You know that the number of sea turtle deaths per year is modeled by f(x) = 13.42x + 109.118.   Then the value of the slope is 13.42. In this scenario, the slope indicates that the number of deaths of sea turtles grows in a proportion of 13.42 with respect to the pollution index of the bay.

5 0
3 years ago
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kolbaska11 [484]

Answer:

49/54

Step-by-step explanation:

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3 0
3 years ago
In the diagram below, BD is parallel to XY. what is the value of y?
melisa1 [442]

I can't see the diagram sorry.

Step-by-step explanation:

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8 0
3 years ago
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34kurt
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6 0
3 years ago
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Brilliant_brown [7]

Answer:

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