3 years ago

Determine what the next number in the sequence should be. 99.5, 98.5, 97, 95, 92.5, 89.5?

1 answer:

8 0

Answer:

87.5

Step-by-step explanation:

-2

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stich3 [128]

${x}^{2} - \frac{15x}{2} + \frac{7}{2}$

Step-by-step explanation:

So we go backwards, since we have x= 1/2 , 7

$(x - \frac{1}{2} )(x - 7)$

Now we have to foil to get the quadratic

${x}^{2} - 7x - \frac{1}{2} x + \frac{7}{2}$

We must simplify the terms

${x}^{2} - \frac{14x}{2} - \frac{x}{2} + \frac{7}{2}$

Our final result comes out to be

${x}^{2} - \frac{15x}{2} + \frac{7}{2}$

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Yuliya22 [10]

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Maurinko [17]

Use Pythagorean theorem
a2 + b2 = c2
x2 + 5^2 = 20^2
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