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Afina-wow [57]
3 years ago
11

Find the value of x. Select one: a. 2.3 inches b. 3.3 inches c. 4.1 inches d. 6.1 inches

Mathematics
1 answer:
spayn [35]3 years ago
6 0

Answer:

c 4.1 inches

Step-by-step explanation:

The circumference of a circle is given by

C = 2*pi*r

The sector is only 78 degrees

Take the fraction of a circle  and multiply by the circumference to find the length x

x = C* 78/360

  = 2 * pi *r * 78/360

  = 2 * pi *3 * 78/360

Using 3.14 for pi

  = 4.082

Rounding to the nearest tenth

x = 4.1 inches

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The root x=1 has multiplicity 3 for the function f(x)=x^4-x^3-3x^2+5x-2. True or false
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Answer:

A. Diagram attatched

B. 4.7%

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Step-by-step explanation:

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1. Discount (30%)

2. Free shipping (40%)

3. No special offer, (it must be 30% because all gives a total of 100%)

Then, for each scenario two things could happen, customer makes a purchase or not. Given the information above, each branch of the tree has the specified percentage of occurrence or probability.  

B. Once the probability tree is made, the next step is to multiply the percentages of each consecutive branch. For example:

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Then, after calculate all percentages of customers that make a purchase, it is necessary to add them to finally get a total of 4.7%.

C. We can understand it as follows:

The customers are divided between three main sets:

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Where A: the costumer made a purchase

            B: the costumer received an offer of free shipping

The probability that a costumer were offered with free shipping given that he made a purchase is 0.42.

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