3 years ago

Express the product of (6-2i)(-4+3i) in a+bi form

Mathematics

1 answer:

Dafna1 [17]3 years ago

8 0

Multiply through the parentheses:
-24 + 18i + 8i + 6
18 + 26i

18 + 26i is the answer

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Which statement is an example of the Addition Property of Equality?

weqwewe [10]

The answer would be p + s = q + s ...so it would be B.

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3 years ago

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Bob and ling are playing a number pattern game. Bob wrote the following sequence

seraphim [82]

The unknown term is 22.6

28.9
26.8
24.7
22.6
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Solve the system of equations. 2y+7x=−5 5y−7x=12

3241004551 [841]

We can solve this by substitution method.

Look at the second equation. If we rearrange to find 7x, we can substitute in the value into the first equation.

$5y-7x=12$

$5y-7x-12=0$

$5y-12=7x$

Therefore, $7x=5y-12$

Now replace the 7x in the first equation with 5y - 12:

$2y+7x=-5$ (substitute in 7x = 5y - 12)

$2y+(5y-12)=-5$

$7y-12=-5$

$7y=7$

$y=1$

Now that we know y, we can find x by substituting in y = 1 into any equation we want. I will use the equation: 7x = 5y - 12

$7x=5y-12$ (substitute in y = 1)

$7x=5(1) -12$

$5x=5-12$

$7x=-7$

$x=-1$

__________________________________________________________

Answer:

$y=1\\x=-1$

4 0

3 years ago

I need helpASAP!! Which point would map onto itself after a reflection across the line y = –x?

Maru [420]

(0,-4) would map into itself because it doesn’t move.

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3 years ago

PLEASE PLEASE HELP!!!!!!!!

nikitadnepr [17]

The scale factor is 3 because the units of segments are given equally to us.

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3 years ago