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Cloud [144]
3 years ago
7

Think about plotting points in the complex plane to represent the following numbers: -3+8i, 4i, 6, 5-2i. (on the horizontal axis

, on the vertical axis, quadrant 1, quadrant 2, quadrant 3, quadrant 4)
Mathematics
2 answers:
9966 [12]3 years ago
8 0
For this case we represent in the complex plane numbers of the form:
 a + bi
 
Where,
 a: real part
 bi: imaginary part
 We represent the real part on the x axis.
 We represent the imaginary part in the y axis.
 Therefore, for the following numbers we have:
 -3 + 8i: quadrant 2
 4i: on the vertical axis
 6: on the horizontal axis
 5-2i: quadrant 4
Brut [27]3 years ago
8 0

Answer:

-3 + 8i: quadrant II

4i: on the vertical axis

6: on the horizontal axis

5-2i: quadrant IV

ON EDGE :)

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On a piece of paper, use a protractor to construct right triangle ABC with AB=3 in. , m∠A=90° , and m∠B=45° .
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1. A. AC=3IN

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Step-by-step explanation:


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x = player1

y = player 2

z = player 3

y = 2x  or 1/2 y =x

y = z-10  or z = y+10

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z = y+10 = 24+10 = 34

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3 years ago
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The mayor of a town has proposed a plan for the construction of a new community. A political study took a sample of 800 voters i
Hunter-Best [27]

Answer:

A political strategist wants to test the claim that the percentage of residents who favor construction is more than  30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

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Alternative hypothesis p >0.3

Step-by-step explanation:

We have the following info given from the problem:

n= 800 the random sample of voters selected from the town

\hat p = 0.34 represent the proportion of residents favored construction

p_o = 0.30 represent the value desired to test.

A political strategist wants to test the claim that the percentage of residents who favor construction is more than  30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: p \leq 0.3

Alternative hypothesis p >0.3

And in order to test this hypothesis we can use a one sample z test for a population proportion and the statistic would be given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And with the data given we have:

z=\frac{0.34 -0.3}{\sqrt{\frac{0.3(1-0.3)}{800}}}=2.469  

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3 years ago
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Answer:

B- Line Q

Step-by-step explanation:

Line Q is practically in the middle of the dots. It is called a trend line btw. :)

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