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Strike441 [17]
3 years ago
10

Find the smallest number by which 248 should be subtracted to make them perfect square​

Mathematics
1 answer:
dimaraw [331]3 years ago
4 0

Answer:

21.

Step-by-step explanation:

The next perfect square below 248 i s 225 ( = 15^2).

So the answer is 248 - 225 = 21.

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Complete Question:

a) Is it plausible that X is normally distributed?

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Answer:

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b) probability that the sample mean courtship time is between 100 min and 125 min is 0.5269

Step-by-step explanation:

a)X denotes the courtship time for the scorpion flies which indicates that is a real - valued random variable, and since normal distribution is a continuous probability distribution for a real valued random variable, it is plausible that X is normally distributed.

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SD = \sqrt{\frac{\sigma^{2} }{n} } \\SD = \sqrt{\frac{110^{2} }{50} } \\SD = 15.56

P(100 < \bar{X}

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P(z_{2}  < 0.32 ) = 0.6255\\ P(z_{1}  < -1.29) = 0.0986

P(100 < \bar{X}

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Answer:

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260 still air - 215 downwind = 45 mph wind velocity

Step-by-step explanation:

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Answer:

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