Find Real Numbers a and B Such That the Equation $( a + 4 ) + 2 b i = 4 - 17 i$

question 6

Multiple Choice

Find real numbers a and b such that the equation is true. ​​ $( a + 4 ) + 2 b i = 4 - 17 i$ ​

• A)​a = 0,b = - \(\frac { 21 } { 2 }\)
• B)​​a = 0,b = - \(\frac { 17 } { 2 }\)
• C)​​a = 0,b = - \(\frac { 19 } { 2 }\)
• D)​​a = 0,b = -9
• E)​​a = 0,b = -10

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Definitions:

Normal Distribution

A bell-shaped curve, which is symmetric about the mean, depicting the distribution of many types of data.

Standard Deviation

A statistical measurement of variance or dispersion within a dataset, indicating how spread out the numbers are from the mean.

Standard Error

The standard deviation of the sampling distribution of a statistic, commonly used as an estimate of the accuracy of a sample mean.

Sample Mean

The average of observations collected from a sample, used as an estimate of the population mean.