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Karolina [17]
3 years ago
14

Write 63000 in standard form

Mathematics
2 answers:
WINSTONCH [101]3 years ago
7 0
63000 is already in standard form
mash [69]3 years ago
7 0
It's already in standard form
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A professor at a university wants to estimate the average number of hours of sleep the students get during exam week. The profes
balandron [24]

Answer:

The sample size is n = 2

Step-by-step explanation:

From the question we are told that

   The margin of error is  E =4.266

    The standard deviation is  \sigma = 2.539

From the question we are told the confidence level is  99% , hence the level of significance is    

      \alpha = (100 - 99 ) \%

=>   \alpha = 0.01

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  2.58

Generally the sample size is mathematically represented as  

   n = [\frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ] ^2

=>  n = [\frac{2.58  *  2.539  }{4.266} ] ^2

=>  n = 2

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3 years ago
The right rectangular prisms are similar.
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Answer:

A, B, E

Step-by-step explanation:

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3 years ago
The corresponding sides of two similar rectangles are 14 ft and 8 ft. The area of the smaller rectangle is 57 ft2. To the neares
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Find an explicit formula for the geometric sequence −1,−7,−49,−343,...-1\,,-7\,,-49\,,-343,... −1,−7,−49,−343
umka21 [38]
So we see it times 7 each time
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geometric
an=a1(r)^(n-1)
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a_n=-1(7)^{n-1} is the formula
also can look like this:
f(n)=-1(7)^{n-1}
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