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Art [367]
4 years ago
7

Which expression or value is equivalent to (8+2i)(8−2i)?

Mathematics
1 answer:
nevsk [136]4 years ago
3 0
This factors to 64 - 4i^2
64 + 4

68 is the answer
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.08 is 10 times as much as
Mazyrski [523]
It is 10 times as much as .008

Do you see the pattern?
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3 years ago
Please help ASAP THIS IS MY FINAL QUESTION!!!! 20 points!!!!
givi [52]

Answer:

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Step-by-step explanation:

2y - x = 8

First find the slope

2y = x+8

Divide by 2

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y = 1/2 x +4

The slope is 1/2  ( y=mx+b where m is the slope and b is the y intercept)

When lines are parallel they have the same slope)

Using y = mx+b

y =1/2x+b

Substituting the point (4,-1) into the equation

-1 =1/2(4)+b

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4 0
3 years ago
What is the volume, in cubic meters, of a cylinder with a height of 8 meters and a base radius of 9 meters, to the nearest tenth
sammy [17]
Volume of a cylinder: \pi  r^{2} h

Plug in the numbers.

\pi 9^{2} 8 = <span>2035.8
</span>
The cylinder's volume is 2035.8 m³.
5 0
4 years ago
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Degger [83]

Answer: x = 5/7

Step-by-step explanation:

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7 0
3 years ago
The sales tax on clothing in Louisiana is 4% . Calculate how much tax you need to pay on a dress if it costs $19.50 before befor
SVEN [57.7K]

Answer:

.78 cents

Step-by-step explanation:

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In this case that would look like: $19.50/100 times 4 =.78

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3 years ago
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