2 years ago

Please help!!!!! I'm very confused how to do this

Mathematics

1 answer:

Alla [95]2 years ago

5 0

Answer:

Is there a formula?

Step-by-step explanation:

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1 year ago

Ricky jogs 5 laps around a track in 8 minutes. Which of the following would be the same number of laps per minute?

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Pls send the answer

luda_lava [24]

Answer:

$a = \dfrac{46}{17}$

$b = 0$

Step-by-step explanation:

$\dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} - \sqrt{3}} + \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} + \sqrt{3}} =$

$= \dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} - \sqrt{3}} \times \dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} + \sqrt{3}} + \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} + \sqrt{3}} \times \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} - \sqrt{3}}$

$= \dfrac{23 + 4\sqrt{15}}{17} + \dfrac{23 - 4\sqrt{15}}{17}$

$= \dfrac{46}{17}$

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$b = 0$

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1 year ago

To pass her test, Tori needs to answer at least 65% of the questions correct. If there were 60

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Please help!!!!! I'm very confused how to do this​

Please help!!!!! I'm very confused how to do this