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Vladimir [108]
3 years ago
6

Find all complex solutions of x^2=i

Mathematics
1 answer:
erica [24]3 years ago
4 0
Simple...

it's saying x^{2} =i?

To find the answer just take the root of both sides and solve.

\sqrt{ x^{2} } = \sqrt{i}

But, remember, there's the positive side of the answer...and the negative side of the answer...

x=\sqrt{i} ,- \sqrt{i}

Thus, your answer.
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Alright, second try. 15 Points to whoever can solve with a half-decent explanation.
sesenic [268]

Answer:

29 cans

Step-by-step explanation:

To solve this problem we must use Heron's formula; A = \sqrt{S(S-a)(S-b)(S-c)}

S = 1/2 the perimeter of the given triangle

a, b, c = the measurements of the three given sides

The first step to solving this question is first finding the perimeter.

P = 65m + 74m + 67m

P = 206m

Now that we have our perimeter, we must divide P by 2 to get S.

S = 206/2

S = 103

Now we plug our numbers into Heron's formula.

A = \sqrt{S(S-a)(S-b)(S-c)}

A = \sqrt{103(103-65)(103-67)(103-74)}

A = \sqrt{103(38)(36)(29)}

A = \sqrt{103(39672)}

A = \sqrt{4086216}

Find the square root of this number.

A ≈ 2021.43909134... m²

If a can of paint covers 70 square meters, then you will need to figure out how many cans you need. This can be done by dividing the overall area of the triangle by the area that a single can of paint can cover.

\frac{2021.43909134...}{70} = 28.8777013049...

We know we can't buy 28.87... of a can (people simply do not sell parts of cans or half-full containers... unless its a bag of lays chips and their 80% air nonsense...) so we must round up to the nearest whole number.

28.87... = 29

Thus we finally have our answer: 29 cans of paint!

5 0
3 years ago
URGENT PLEASE HELP (15 POINTS!!!!!!)
faust18 [17]

Answer:

connect C and E with a straightedge

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Are ABC and CDA congruent? Justify your answer. brainly
Setler79 [48]
Yes
because they have the same volume

5 0
3 years ago
Read 2 more answers
Simplify 4i(-2 - 8i ) =
Dmitrij [34]
Hi there!

The answer is:

-8i -32i

-40i is the answer.
3 0
3 years ago
Read 2 more answers
If you are good at money and math, please look at the screenshot below and help me! I think some ppl will think this is easy.
Verizon [17]

Answer:

150 for lower seats and 200 for higher seats

Step-by-step explanation:

Need two equations and then solve using substitution method:

Equation 1 for tickets sold:

$35x + $25y = $10,250

Equation 2 for quantity (number #) of tickets sold:

x + y = 350

Use substitution method:

y = 350 - x

35x + 25 (350 - x) = $10,250

35x + $8750 - 25x = $10,250

10x + $8750 = $10,250

        - $8,750       -$8,750

10x = 1,500

x = 150

 

y = 350 - 150

y = 200

Check the answers:

$35 (150) + $25 (200) =

$5,250 + $5,000 = $10,250

7 0
2 years ago
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