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Radda [10]
3 years ago
8

Please solve the following complex number system ASAP, show work and please simplify fully.

Mathematics
1 answer:
Illusion [34]3 years ago
7 0

Answer:

x= 16±√-64 over 2

Step-by-step explanation:

x= -(-16)±√(-16)²-4×1×80 over 2×1

x= 16±√256-320 over 2

x= 16±√-64 over 2

can also be represented with all real numbers.

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iogann1982 [59]

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Are the triangles similar?
Fed [463]

Answer:

No, because the sides lengths are not proportional.

Step-by-step explanation:

<h3>What is the SAS similarity theorem ?</h3>

By definition, two triangles are similar if all their corresponding angles are congruent and their corresponding sides are proportional.

<h3>What is the AA similarity theorem ?</h3>

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2 years ago
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PLS HELP ME.
andrey2020 [161]

Step-by-step explanation:

v.of cylinder= (pi)r²h

pi used = 22/7

first cylinder (A)= 22/7 x 5² x 7

= 550 cm3

second (B) = 22/7 x 10² x 5

=1571.43 cm3

A + B = 2121.43 cm3

new cylinder:

22/7 x r² x 3= 2121.43 cm3

r² = √2121.43/ (22/7 x 3)

r = 15 cm

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3 years ago
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