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alina1380 [7]
3 years ago
12

If you follow the steps necessary to prove that square root 7 is irrational (use a proof by contradiction) to prove that square

root 4 is irrational, where would you fail? You may not answer : I know that it isn't or something similar.
Mathematics
1 answer:
Viefleur [7K]3 years ago
8 0
Sorry, i wish i could help, but really the only thing i know is that 4 is 2 by 2 so using another equation to try to prove otherwise is irrational in itself 
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3 years ago
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A large school district in Connecticut wants to estimate the average SAT score of this year's graduating class using a 95% confi
forsale [732]

Answer:

[ 502.5, 517.5]

Step-by-step explanation:

Given:

Mean of the sample, µ = 510

Total sample size, n = 100

Standard deviation = 75

Confidence level = 95%

Now,

The interval for µ is given as:

⇒ µ ± z\frac{\sigma}{\sqrt n}

for 95% confidence level z value = 1.96

Thus,

The interval for µ

⇒ 510 ± 1.96\times\frac{75}{\sqrt{100}}

or

⇒ 510 ± 7.5

or

⇒ [ 510 - 7.5, 510 + 7.5 ]

or

⇒ [ 502.5, 517.5]

7 0
3 years ago
You catch an expected number of 1.51.5 fish per hour. You can catch a fish at any instant of time. Which distribution best chara
Illusion [34]

Answer:

The distribution is  Poisson distribution

Step-by-step explanation:

From the question we are told that

   An expected number of fish was caught per hour is  1.5

The distribution that best characterize the number of fish you catch in one hour of fishing is the Poisson distribution

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6 0
3 years ago
Find the product using suitable rearrangement : 8 × 391 × 125
Step2247 [10]

Answer:

39100

Step-by-step explanation:

8 \times 391 \times 125 \\  = 391 \times (8 \times 125) \\  = 391 \times 1000 \\  = 391000

4 0
4 years ago
A.
statuscvo [17]

Answer:

Divide both sides by 5.

Step-by-step explanation:

Divide both sides by same non-zero constant.

8 0
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