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jasenka [17]
3 years ago
7

Pedro had $14.90 in his wallet. He spent $1.25 on a drink. How much does he have left? Estimate the answer by rounding to the ne

arest whole numbers before subtracting. Will your estimate be high or low? Explain. Find the difference. Show your work.
Mathematics
1 answer:
zlopas [31]3 years ago
7 0
$14.90 rounded to the nearest whole would be $15 and $1.25 would be $1. 15-1 is 14. 14.90-1.25 is 13.65. the estimate was higher than the real answer by $0.35
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y = x + 6

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3 years ago
Which of the following is the standard equation of the ellipse with vertices at (1,0) and (27,0) and an eccentricity of 5/13?
Dovator [93]

The equation of the elipse is given by:

\frac{(x - 14)^2}{169} + \frac{y^2}{144} = 1

The equation of an elipse of center (x_0, y_0) is given by:

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Values a and b are found according to the <u>vertices and the eccentricity</u>.

It has vertices at (1,0) and (27,0), thus:

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y_0 = \frac{0 + 0}{2} = 0

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It has eccentricity of \frac{5}{13}, thus:

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c = 13

Thus, b is given according to the following equation:

c^2 = a^2 - b^2

b^2 = a^2 - c^2

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b = \sqrt{144}

b = 12

The equation of the elipse is:

\frac{(x - 14)^2}{169} + \frac{y^2}{144} = 1

A similar problem is given at brainly.com/question/21405803

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3 years ago
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Dmitriy789 [7]

Answer:

The first one is y = 8 and the second one is y = 4.

Step-by-step explanation:

You plug the numbers in for x and then solve the equations.

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3 years ago
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