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Luden [163]
3 years ago
5

1) Sarah orders bracelets from a catalog. The bracelets cost $4 each and the shipping charge is $3. If Sarah

Mathematics
2 answers:
____ [38]3 years ago
7 0

Answer:

If the shipping is included with the 4 dollars then it would be that she can buy 5 bracelets, but if it was 4$ + 3$ then she can only buy 2

Step-by-step explanation:

Fittoniya [83]3 years ago
3 0
She can only buy two since the bracelet and shipping is $7 together so you can buy two $14
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What is the equation of the line that is parallel to y-3x=2 and that passes through (6,1)?
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Try this solution (analytic method):

1. if new line is parallel to the given one (y=3x+2) it means the new line has a form y=3x+b, where b - number.

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1=3*6+b, ⇒ b=-17.

3. If to make up the equation of the new line:

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Assoli18 [71]
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Write the standard form of an equation of an ellipse subject to the given conditions.
irina [24]

Answer:

The answer is below

Step-by-step explanation:

The standard form of the equation of an ellipse with major axis on the y axis is given as:

\frac{(x-h)^2}{b^2} +\frac{(y-k)^2}{a^2} =1

Where (h, k) is the center of the ellipse, (h, k ± a) is the major axis, (h ± b, k) is the minor axis, (h, k ± c) is the foci and c² = a² - b²

Since the minor axis is at (37,0) and (-37,0), hence k = 0, h = 0 and b = 37

Also, the foci is at (0,5) and (0, -5), therefore c = 5

Using c² = a² - b²:

5² = a² - 37²

a² = 37² + 5² = 1369 + 25

a² = 1394

Therefore the equation of the ellipse is:

\frac{x^2}{1369}+ \frac{y^2}{1394} =1

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2 years ago
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ziro4ka [17]

Answer:

Step-by-step explanation:

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