3 years ago

Solve for this equation z^2-12z=-13

Mathematics

1 answer:

ASHA 777 [7]3 years ago

5 0

Answer:

$z=\sqrt{-1}$

Step-by-step explanation:

$z^2-12z=-13\\z^2-\frac{-12}{+12} =-13+12\\z^2=-1\\\sqrt{z^{2} } =\sqrt{-1}\\ z=\sqrt{-1}$

You might be interested in

What is the simplified form of i^13

Nikitich [7]

Answer:

Step-by-step explanation:

$\begin{array}{lclcr}i^{1} & = &(\sqrt{-1})^{1}&=& i\\i^{2} & = & (\sqrt{-1})^{2}& =&-1\\i^{3} & = & (\sqrt{-1})^{3}&=&-i\\i^{4} & = & (\sqrt{-1})^{4}& = &1\\\end{array}$

Multiplying by i repeats the pattern .

Thus, any i⁴ⁿ = 1

If n = 3, 4n = 12, so

i¹² = 1 and

i¹³ = i¹ = i

4 0

3 years ago

Which is the graph of the solution set of −2x + 5y > 15?

Ilia_Sergeevich [38]

Answer:

given below

Step-by-step explanation:

−2x + 5y > 15

5y > 15 + 2x

if x is 0 then y is 3 and its greater than so increasing

therefore answer is graph A

6 0

2 years ago

Find the value of the variable.

erica [24]

X=pen ies
Y s97
Brats the

3 0

3 years ago

Which is greater 0.6 or 0.06

Komok [63]

Answer: 0.6
Why? 0.6 can also be represented as 0.60
0.60>0.06

3 0

4 years ago

Which triangle always has 3 sides the same length and all angles the same measure? A. equilateral B. acute scalene C. obtuse iso

Murrr4er [49]

The answer to this question is C

4 0

3 years ago