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pashok25 [27]
2 years ago
6

Find a polynomial function f in standard form with zeros 3i, -2, 1

Mathematics
1 answer:
yanalaym [24]2 years ago
3 0
The first thing to remember is that when you have a zero of 3i, you will also have a zero of -3i. This is because of the way imaginary solutions are created (taking the square root of a negative number). When you take the sqrt you get TWO answers.
The factors for these zeros are (x - 3i)(x+3i)(x+2)(x-1)
When you multiply the factors, the polynomial will be:
x^4 + x^3 + 7x^2 + 9x - 18
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What is the slope of the following line ? help urgent
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m =1

Step-by-step explanation:

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Suppose that in a certain county 37% of voters are registered as Democrats, 29% as Republicans, 7% as Green party, and the rest
Fantom [35]

Answer:

0.66

Step-by-step explanation:

GIVEN: Suppose that in a certain county 37\% of voters are registered as Democrats, 29\% as Republicans, 7\% as Green party, and the rest are considered Independents. You conduct a poll by calling registered voters in the county at random.

TO FIND: Probability that the first call will be to either a Democrat or a Republican.

SOLUTION:

Lets total population of county be 100x.

voters registered as Democrats =37\%=\frac{37}{100}\times100x

                                                     =37x

voters registered as Republicans =29\%=\frac{29}{100}\times100x

                                                       =29x

voters registered as Green party =7\%=\frac{7}{100}\times100x

                                                       =7x

Probability that first call will be to Democrats P(A)=\frac{\text{total democrats}}{\text{total voters}}

                                                                                    =\frac{37x}{100x}=0.37

Probability that first call will be to Republican P(B)=\frac{\text{total republicans}}{\text{total voters}}

                                                                                     =\frac{29x}{100x}=0.29

probability that the first call will be to either a Democrat or a Republican

=P(A)+P(B)

=0.37+0.29

=0.66

Hence the probability that the first call will be to either a Democrat or a Republican is 0.66

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3 years ago
Which of the following represents the ratio of the hypotenuse to the given side?
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Answer:c

Step-by-step explanation:

hyp=6\sqrt{2}

adj=6

hyp:adj=6\sqrt{2}  :2

hyp:adj=\frac{6\sqrt{2} }{6} \\

=\frac{\sqrt{2} }{1} \\hyp:adj=\sqrt{2} :1

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A portion of a city map is shown in the figure at the right. If you walk him on Maple Street between second Street and Elm Grove
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Dude where is the map
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