Mathematics, 18.11.2020 01:00 meganwintergirl
Which is the equation of a hyperbola with directrices at x = ±3 and foci at (4, 0) and (−4, 0)?
x squared over 16 minus y squared over 4 equals 1
x squared over 12 minus y squared over 4 equals 1
y squared over 16 minus x squared over 4 equals 1
y squared over 12 minus x squared over 4 equals 1
Answers: 2
Mathematics, 21.06.2019 18:30
[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?
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Mathematics, 21.06.2019 19:30
Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?
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Which is the equation of a hyperbola with directrices at x = ±3 and foci at (4, 0) and (−4, 0)?
x s...
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