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2 years ago

Help please !!!!! Super hard

Mathematics

1 answer:

Keith_Richards [23]2 years ago

4 0

The image is really unclear but I will assume that the number of teams given = 66
and the formula is
$n = \frac{ {t }^{2} - t }{2}$
plug in the number of teams
$66 = \frac{ {t}^{2} - t }{2}$
multiply both sides by two
$132 = {t}^{2} - t$
subtract 132 from both sides and factor
t = 12

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Answer: $\Large\boxed{(-4,~-3)~\text{and}~(-2,~1)}$

Step-by-step explanation:

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1 year ago

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arlik [135]

If the temperature dropped by 7.f each hour from 5:00 am to 9:00 am. the beginning temperature at 5:00 am if the temperature at 9:00 am was -10.f is 18.f.

<h3>Beginning temperature</h3>

Dropped in temperature=7.t

Number of hours= 5:00 am to 9:00 am=4 hours

Temperature at 9:00 am=-10.f

Hence:

Beginning temperature can be calculated as:

Beginning temperature=(4× 7) + (-10)

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Beginning temperature= 18.f

Check:

Since temperature dropped by 7.f each hour from 5:00 am to 9:00 am

which implies that temperature 7.f dropped for 4 hours.

Hence:

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Therefore If the temperature dropped by 7.f each hour from 5:00 am to 9:00 am. the beginning temperature at 5:00 am if the temperature at 9:00 am was -10.f is 18.f.

Learn more about Beginning temperature here:brainly.com/question/24746268

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