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IgorLugansk [536]
2 years ago
14

Simplify -2i sq.root -12

Mathematics
1 answer:
Darina [25.2K]2 years ago
6 0

Answer:

= 4sqrt3

Step-by-step explanation:

-2i sqrt -12

= -2i * i sqrt12 <-- i^2 = -1

= -2i^2sqrt12

= -2(-1)sqrt12

= 2sqrt12

= 2 * 2 sqrt3

= 4sqrt3

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abruzzese [7]
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So a 31% decline on 276,000 = 85,560. So we need to subtract that from 85,560 from 276,000 which is 190,440. So at the end of the second year, DVD sales were only 190,440.  That's also out starting point of the 3rd year. 

So 31% of 190,440 equals 59,036.4 for the third year of DVD sales. So we need to subtract 59,036.4 from out third year starting point of 190,440, which equals 131,403.6, but since you can't have parts of DVDs, we'll round the decimal point fraction to a whole number to end up with 131,404 DVDs sold in year three.

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3 0
3 years ago
Read 2 more answers
The roots of the equation are 3 + 8i and 3 – 8i.
g100num [7]
Given that the roots of the equation x^2-6x+c=0 are 3+8i and 3-8i, the value of c can be obtained as follows;
taking x=3+8i and substituting it in our equation we get:
(3+8i)^2-6(3+8i)+c=0
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collecting the like terms we get:
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3 years ago
Which equation gives the value of the circumference, C, of a circle with a diameter of 56 feet?
Keith_Richards [23]

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4 0
3 years ago
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Blababa [14]
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3 years ago
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ycow [4]

Answer:

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Step-by-step explanation:

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m2*m1= -1 (a)

where m is the slope of a line

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The Line has the following equation: y=mx+b, where m=-9 and the b is the interception with y axis.

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