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solniwko [45]
3 years ago
9

You spend half of your allowance on Monday. On Tuesday, you spend half of what is left. Then on Wednesday, you spend half of wha

t remains.
What fraction of your allowance do you have left?
Mathematics
1 answer:
KatRina [158]3 years ago
5 0

Answer: $2.50

Step-by-step explanation: I don't really know if I'm right let me know if I am but what I came up with is half of 20 is 10 half of 10 is 5 and half of 5 is two and a half so $2.50

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Y = x^2+ 7x - 5 can be written in the form y = (x + a)^2+b
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Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = (x - h)² + k (h, k) are the coordinates of the vertex

Given y = x² + 7x - 5

To express in vertex form use the method of completing the square

add/subtract ( half the coefficient of the x- term )²

y = x² + 2( \frac{7}{2} )x +\frac{49}{4} - \frac{49}{4} - 5

y = (x + \frac{7}{2} )² - \frac{49}{4} - \frac{20}{4}

y = (x + \frac{7}{2} )² - \frac{69}{4}

Hence

a = \frac{7}{2} and b = - \frac{69}{4}

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State if the two triangles are similar and the rule that applies.
kobusy [5.1K]

Answer:

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Step-by-step explanation:

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