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vekshin1
3 years ago
15

Please Help!!! It’s an emergency. I will make you brainiest!!!

Mathematics
2 answers:
Scrat [10]3 years ago
8 0
Yep that’s correct! Good job!
murzikaleks [220]3 years ago
7 0
3108.3 is the correct answer you’re supposed to divide the circumference by pie
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What is 321 over 100 in simplest form?
STatiana [176]
321 / 100 = 3.21 as you are dividing by 10, and then 10 again
4 0
4 years ago
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Determine the commutators of the operators a and a+,where a = (x + ip)/2 ^1/2 and a+ = (x - ip)/ 2 ^1/2
Vsevolod [243]

Answer:

Given that:

a = (\frac{x+ip}{2})^{\frac{1}{2}} and a+= (\frac{x-ip}{2})^{\frac{1}{2}}

if a , a+ commutator, it obeys aa^+ = a^+a

First find:

aa^+ = (\frac{x+ip}{2})^{\frac{1}{2}} (\frac{x-ip}{2})^{\frac{1}{2}}

                = (\frac{(x)^2-(ip)^2}{4})^{\frac{1}{2}}=(\frac{(x)^2+(p)^2}{4})^{\frac{1}{2}}

Now;

a^+a =(\frac{x-ip}{2})^{\frac{1}{2}} (\frac{x+ip}{2})^{\frac{1}{2}} = (\frac{(x)^2-(ip)^2}{4})^{\frac{1}{2}}

              =(\frac{(x)^2-(ip)^2}{4})^{\frac{1}{2}}=(\frac{(x)^2+(p)^2}{4})^{\frac{1}{2}}

therefore, aa^+ = a^+a which implies the operators a and a+ are commutators.    


7 0
3 years ago
21) Rearrange the formula c2 = a2 + b2 for b.
Anvisha [2.4K]
C2 + a2 +2 = b
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8 0
4 years ago
Label the points, lines, and planes to show AB←→ and line j perpendicular to each other in plane R at point A, AB←→ both perpend
algol [13]

Answer:

That would be c

7 0
3 years ago
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IQ scores based on the​ Stanford-Binet IQ test are normally distributed with a mean of 100 and standard deviation 15. If you wer
lianna [129]

Answer:

95 intervals

Step-by-step explanation:

Given that

population mean = 100

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number of interval that involve the mean for 95% confidence interval is calculated as

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similarly

Assuming we measure a confidence interval of 95 percent, then we  should expect 95 out of 100 confidence interval to provide the mean population therefore, answer is 95

7 0
3 years ago
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