What is the conjugate of -4 + 5i

Mathematics

2 answers:

andrew-mc [135]2 years ago

8 0

Answer:

To find the conjugate of a complex number we just change the sign of the imaginary part.

-4 + 5i = -4 -5i

masya89 [10]2 years ago

8 0

Answer:

-4-5i

Here is ur answer mate

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What is the effect on the graph of f(x) = x² when it is transformed to

ladessa [460]

Answer:

Step-by-step explanation:

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1 year ago

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To factor 8x^2 + bx + 3, a student correctly rewrites the trinomial 8x^2 + px + qx + 3. What is the value of pq?

sergeinik [125]

Try this option:
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given 8x²+10x+3, the student rewrites it as a) 8x²+5x+5x+3 (5*5=25-max value); b) 8x²+0.01x+9.99x+3 (9.99*0.01=0.0999→0); c) 8x²-20x+30x+3 (p*q=-600).

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3 years ago

32 is what percent of 98.6?

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32 is 32.4543611% 0f 98.6

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2 years ago

Can you help me solve this please

OLga [1]

Answer:

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Step-by-step explanation:

$i = \sqrt{ - 1} \\ (3 - 4i)( - 6 + i) \\ = (3 - 4 \sqrt{ - 1} )( - 6 + \sqrt{ - 1} ) \\ = 3( - 6 + \sqrt{ - 1)} - 4 \sqrt{ - 1} ( - 6 + \sqrt{ - 1} ) \\ = - 18 + 3 \sqrt{ - 1} + 24 \sqrt{ - 1} - 4 \\ = - 22 + 27 \sqrt{ - 1} \\ putting \: \: \: \sqrt{ - 1 } = i \\ = - 22 + 27i$