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Fittoniya [83]
3 years ago
5

Multiply the following complex numbers: (9-21)(7 +61)

Mathematics
2 answers:
labwork [276]3 years ago
8 0

Answer:

-816

Step-by-step explanation:

you subtract 9-21 to get -12 then you take 7+61 which is 68 and then you multiply them to get -816

Andrew [12]3 years ago
3 0

Answer:

-816

Step-by-step explanation:

-12*68= -816 this is probably wrong but this is what i got

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Mathematics-Algebric expressions and identity for class 8
Pani-rosa [81]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Round 52961 to one significant figure
Aneli [31]

Answer: 50000

Step-by-step explanation:

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Rules for significant figures:

Digits from 1 to 9 are always significant and have infinite number of significant figures.

All non-zero numbers are always significant. For example: 654, 6.54 and 65.4 all have three significant figures.

All zero’s between integers are always significant. For example: 5005, 5.005 and 50.05 all have four significant figures.

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7 0
3 years ago
Solve using long division<br> (x² – 3x - 40) + (x+5)
wolverine [178]

The chosen topic is not meant for use with this type of problem.

However, if you simplify it, your answer is:

x^2 − 2x − 35

4 0
2 years ago
Read 2 more answers
Write an equation in slop-intercept form the line with slope 1/4 and y-intercept -7
Licemer1 [7]

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So, in your case, m=1/4 and b= -7, which leads to the equation

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7 0
3 years ago
A rain gutter is to be constructed of aluminum sheets 12 inches wide. After marking off a length of 4 inches from each edge, thi
pickupchik [31]
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5 0
3 years ago
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