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madreJ [45]
2 years ago
5

Assume that y varies directly with x. If x=5 when y=-8 find x when y=16

Mathematics
2 answers:
Evgesh-ka [11]2 years ago
8 0
Is it -10? Because -8 to 16 is multiplying by -2, so 5 x -2 = -10. I'm not sure though because I don't know exactly what 'varies directly' means.
Dovator [93]2 years ago
3 0
The answer would be ×=-10. Because 2y would be equal to 2x. 2x= (-5*2)
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Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the zeros 4 and 3−
Neko [114]

Answer:

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Step-by-step explanation:

Given

p =1 -- Leading coefficient

Zeros: 4\ and\ 3  - i

Required

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Represent the zeros with a and b

Such that

a = 4

b = 3 - i

The polynomial is:

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However, to solve further: We need to symmetrise over 3-i  and its conjugate

P(x) = 1 * (x - 4) * (x - (3 - i))* (x - (3 + i))

P(x) =  (x - 4) * (x - (3 - i))* (x - (3 + i))\\\\

To define a suitable function, the expression becomes

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Open bracket

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5 0
2 years ago
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