Complete question:
<em>What values of c and d would make the following expression represent a real number? i(2 + 3i)(c + di)
</em>
<em>choices: A)c = 2, d = 3 B)c = –2, d = 3 C)c = 3, d = –2 D)c = –3, d = –2</em>
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<em>Option D</em><em> is correct. </em> The value of c and d for the expression to be real are -3 and -2 respectively
Given the expression
Expand the expression
Collect the like terms
For the resulting function to be real, then the imaginary part must be zero i.e.
If d = -2, then;
Hence the value of c and d for the expression to be real are -3 and -2 respectively.
Learn more here: brainly.com/question/4244460
The purpose of this map is to show the countries occupied by Germany in 1940.
<h3>How to identify the purpose of a map?</h3>
To identify the purpose of a map we must take certain aspects into account such as:
- Title
- The symbols
- Colors
- The scale
- Among others.
According to the above, in this map we must take into account mainly:
The map shows some countries in Europe in light purple and Germany in dark purple, this can be interpreted as the location of Germany and its territorial influence in Europe during the year 1940.
An important aspect of this map is the time it shows, because we can infer that it refers to the territorial occupation that Germany made during World War II to several European countries.
Learn more about maps in: brainly.com/question/1670085
Annelids have segmented bodies.
As Earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. It included hydrogen sulfide, methane, and ten to 200 times as much carbon dioxide as today's atmosphere.
