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2 years ago

Determine whether the following statement is true or false.

Mathematics

1 answer:

shutvik [7]2 years ago

8 0

Answer:

Step-by-step explanation:

In constructing a confidence interval about the mean, the central limit theorem is usually applied. This makes it possible to use the normal distribution. As the number of samples is increasing, the distribution tends to be normal. This would require using the z distribution. In the case where the sample size is small, we assume a normal distribution and use the t distribution. Therefore, the given statement is true.

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The local hardware store wants to increase their inventory. last year 15 electric screwdrivers cost them $300. at the same cost,

VMariaS [17]

Answer:

Cost of 45 screwdrivers will be = $900

Step-by-step explanation:

Last year 15 electric screwdrivers cost to the local hardware store = $300

So per screwdriver cost = $\frac{\text{Total cost}}{\text{Total number of screw drivers}}$

= $\frac{300}{15}$

= $20

Now we have to calculate the cost of 45 screw drivers.

Since cost of 1 screwdriver = $20

So cost of 45 screwdrivers = 20×45 = $900

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3 years ago

13/39 in simplest form

kifflom [539]

Answer:

1/3

Step-by-step explanation:

Find a number that goes into both the numerator and denominator, and divide, then you get 1/3

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2 years ago

Is each expression a polynomial?<br><br> Drag and drop each expression to the correct box.

Scorpion4ik [409]

Answer:

see attached

Step-by-step explanation:

A polynomial is the sum of terms with variables having positive integer exponents. Coefficient numbers need not be integers.

The term 3/x^4 = 3x^-4 is not such a term, so the expression containing it is not a polynomial.

7 0

2 years ago

Which of the following is not one the three categories of Euclid’s geometric principles?

Nikolay [14]

"Conjeture" is not one of the three categories of Euclid's geometric principles.

Euclidean geometry begins with Euclid's Elements, which is both a sum of the geometric knowledge of the time and an attempt to formalize this knowledge mathematically.

The notions of straight line, plane, length, area are exposed there and form the support of elementary geometry lessons. The conception of geometry is intimately linked to the vision of the ambient physical space in the classical sense of the term.

Learn more about Euclid in brainly.com/question/1674393

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2 years ago

Does anyone have any offers for my frost fury?

eimsori [14]

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2 years ago