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Anni [7]
3 years ago
9

PRE-CALCDetermine when 2x^3 + 3x^2 – 17x - 30 < 0 using a sign chart.​

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
3 0

Step-by-step explanation:

Use the Rational Zero Theorem to list all possible rational zeros of the function.

Use synthetic division to evaluate a given possible zero by synthetically dividing the candidate into the polynomial. ...

Repeat step two using the quotient found with synthetic division. ...

Find the zeros of the quadratic function.

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Answer:

Step-by-step explanation:

a). Mean of the given data set = \frac{32+28+18+40+22}{5}

                                                  = 28

b).   x                     x-\overline{x}               (x-\overline{x})^2

     32          32-28 = 4                    16

     28          28 - 28 = 0                  0

     18           18 - 28 = -10                100

     40          40 - 28 = 12                 144

     22          22 - 28 = -6                 36

                                                 \sum({x-\overline x})^2 =  296          

c). Standard deviation = \sqrt{\frac{\sum (x-\overline{x})^2}{n}}

                                     = \sqrt{\frac{296}{5} }

                                     = 7.69

d). Mean of the new set of weights = \frac{32+33+34+35+36}{5}

                                                          = 34

   Since mean of the data set is more close to each data, standard deviation will be less than the deviation given in part (c).

7 0
3 years ago
10. Find the slope of a line perpendicular to the line containing (-8, 10) and (0,9).
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the slope would be 8/1

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Your teacher finds a catalog that sells posters for $2 each. There is an additional charge of $4 to ship and order. Suppose that
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3 years ago
Use the following information to answer the exercise. A vacation resort rents SCUBA equipment to certified divers. The resort ch
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Answer:

Dependent: fee

Independent: time

Step-by-step explanation:

The scenario described in question indicates that fee is the dependent variable and time is independent variable. The reasoning is that fee depends on the time(hour). The fee will increase as the time increases. Whereas change in time cause change in fee. So, fee is the dependent variable and time is independent variable.  

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Houses can be either domed or octagonal.<br> True<br> False
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Answer:

true

Step-by-step explanation:

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