3 years ago

Multiply the following complex numbers: (4 + 7i) (-3-1)

1 answer:

6 0

The answer would be − 16 − 28 i

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notsponge [240]

2 - b.
3 - a.

I'm not sure about 4. Hope this helps!

4 0

3 years ago

iVinArrow [24]

Answer:

$^6C_2=15$

Step-by-step explanation:

Recall the formula:

$^nC_r=\frac{n!}{(n-r)!r!}$

We apply this formula to simplify $^6C_2$

This implies that:

$^6C_2=\frac{6!}{(6-2)!2!}$

$^6C_2=\frac{6!}{4!2!}$

$^6C_2=\frac{6\times5\times4!}{4!\times 2\times1}$

This simplifies to

$^6C_2=\frac{6\times5}{2\times1}$

$^6C_2=\frac{3\times5}{1\times1}=15$

8 0

3 years ago

Advocard [28]

Its the second one

Point slope formula is:
Y - (y1) = m ( x - (x1) )

M is the slope so -5/7

( 6 is (x1) , 2 is (y1) )

Y-2=-5/7(x-6)

4 0

3 years ago

olga_2 [115]

Answer:

Step-by-step explanation:

It’s c 111,734

3 0

3 years ago

joja [24]

Answer:

ibibgiifugugcoygxitiftxxtktozztototototototoztioxfztotoztzootitzifztotxt

3 0

3 years ago