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musickatia [10]
3 years ago
13

DO ALLLLLL FOR BRAIJN LIEST MOSTLY NEED LAST 2 DONE THANKS :D

Mathematics
1 answer:
pantera1 [17]3 years ago
4 0

Answer: what i don't under stand

Step-by-step explanation:

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Calculate using Cauchys integral formula
zhuklara [117]

Answer:

9πi/2

Step-by-step explanation:

\oint\limits_C {\frac{5z^{2}+4}{(z-1)(z+3)} } \, dz,\ C: |z|=2

Let f(z) = (5z² + 4) / (z + 3).

\oint\limits_C {\frac{f(z)}{z-1} } \, dz,\ C: |z|=2

Using Cauchy's integral formula:

2\pi i\ f(1)\\2\pi i\ (\frac{5(1)^{2}+4}{1+3}) \\2\pi i\ (\frac{9}{4}) \\\frac{9\pi i}{2}

5 0
3 years ago
If you are given the graph of a line and are asked to write the equation of a perpendicular line, does it matter what the y-inte
kogti [31]
Yes because the y intercept would be a different value for the new equation unless it is zero
5 0
3 years ago
(2-5i)(4+7i)? How do u do this? HELPPPPPPPP
krek1111 [17]
The "I"'s r variables, now u do 2-5 which sequels -2. now u do 4+7 and that ='s 11. now I think u take 11 and -2 and u subtract 11-(-2). or it could be change the negative into a positive and add them together.
3 0
3 years ago
If f(x) = (1/8)(8^x), what is f(3)?
faust18 [17]

Answer:

f(3)=64

Step-by-step explanation:

f(3)=(1/8)(8 cubed)

f(3)= 8 to the negative one times 8 cubed

f(3)= 8 squared

f(3)=64

5 0
3 years ago
Read 2 more answers
Blaine buys 2 books and the total cost is $24.18. What is the constant of proportionality that relates the cost in dollars, y, t
cestrela7 [59]

Answer:

$ 12.09

Step-by-step explanation:

formula Y = KX

Where; y = $ 24.18

            x = 2 books

            k = constant of proportionality

Step 1. Do the equation based on the formula

Y = kx

$24.18 = k2

Step 2.  Divide by 2

$24.18/2 = k2/2

k = $12.09 (answer)

5 0
3 years ago
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