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irga5000 [103]
3 years ago
7

Simplify the expression (sqrt 3 + i) (sqrt 3 - i) and write the result in the form a + bi.

Mathematics
1 answer:
Keith_Richards [23]3 years ago
4 0

Answer:

Answer is D

Step-by-step explanation:

Just took the test

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Based on the following system of equations, determine the number of solutions. 4x + 3y = 18 y + 9 = 3x
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Sloan [31]

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3 years ago
Sandy evaluated the expression below. (negative 2) cubed (6 minus 3) minus 5 (2 + 3) = (negative 2) cubed (3) minus 5 (5) = 8 (3
olasank [31]

Answer:

she wrote

(-2)^3= 8\\instead\ of\ (-2)^3= -8

Step-by-step explanation:

For proper understanding let us format the question properly

Given  the expression

=(-2)^3(6-3)-5(2+3)\\=(-2)^3(3)-5(5)\\=8(3)-25\\= 24-25= -1

Sandy's error can be observed in the second line of the solution where she made the mistake of writing (-2)^3= 8  instead of (-2)^3= -8

hence the solution is supposed to be

=(-2)^3(6-3)-5(2+3)\\=(-2)^3(3)-5(5)\\=-8(3)-25\\= -24-25= -49

5 0
3 years ago
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Mrac [35]

Answer:

-15

Step-by-step explanation:

it is on the other side of 0 on the number line therefore the opposite of regular 15 is -15

4 0
3 years ago
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