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AveGali [126]
3 years ago
13

Jessie is shopping for clothing gifts for her friends. On the first trip to the store, she purchased 4 t-shirts and 7 scarves an

d spent $93. On her next trip to the store, she purchased 3 more t-shirts and returned 2 scarves and paid $19. What was the cost of each item?
Please explain
Mathematics
2 answers:
marshall27 [118]3 years ago
5 0

Answer:

Not confident in this answer but $9.30  ¯\_(ツ)_/¯

Step-by-step explanation:

madreJ [45]3 years ago
5 0

Answer:

What he said

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Since our foci are located on the x-axis, then our major axis is going to be the horizontal transverse axis of the hyperbola:

<u>Formula for hyperbola with horizontal transverse axis centered at origin</u>

  • <u />\frac{x^2}{a^2}-\frac{y^2}{b^2}=1
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Since we are given our directrices of x=\pm3 and foci of (\pm4,0), then we can set up the directrices equation to solve for a^2:

x=\pm\frac{a^2}{c}\\ \\\pm3=\pm\frac{a^2}{4}\\ \\12=a^2

Now we can determine b^2 to complete our equation for the hyperbola:

a^2+b^2=c^2\\\\12+b^2=4^2\\\\12+b^2=16\\\\b^2=4

Therefore, our equation for our hyperbola is \frac{x^2}{12}-\frac{y^2}{4}=1

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Step-by-step explanation:

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