3 years ago

leonardo bought four snacks that cost $0.50, $1.00, $1.50, and $1.00. what is the average of the deviations from the mean?

Mathematics

1 answer:

Oksanka [162]3 years ago

6 0

Answer:0.25

Step-by-step explanation:

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F(x)=-9x^2-2x and g(x)=-3x^2+6x-9, find (f-g)(x) and (f-g)(-4)

Alona [7]

Answer:

(f - g)(x)= - 6 {x}^{2} - 8x + 9

(f - g)(-4!)= - 55

Step-by-step explanation:

$f(x) = - 9 {x}^{2} - 2x, \: \: g(x) = - 3 {x}^{2} + 6x - 9 \\ (f - g)(x) = f(x) - g(x) \\ = - 9 {x}^{2} - 2x - (- 3 {x}^{2} + 6x - 9) \\ = - 9 {x}^{2} - 2x + 3 {x}^{2} - 6x + 9 \\ \purple{ \boxed{ \bold{(f - g)(x)= - 6 {x}^{2} - 8x + 9}}} \\ (f - g)( - 4)= - 6 {( -4 )}^{2} - 8( - 4) + 9 \\ = - 6 \times 16 + 32 + 9 \\ = - 96 + 41 \\ \red{ \boxed{ \bold{(f - g)( - 4)= - 55}}}$

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sertanlavr [38]

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Step-by-step explanation:

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Marat540 [252]

Answer:

<h2>D. Quadrant III</h2>

Step-by-step explanation:

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Quadrants III (-x, -y)

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so W(-3, -9) both are negatives so its lie on Quadrants III

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