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Cerrena [4.2K]
3 years ago
5

Multiply (6 − 7i)(3 − 6i).

Mathematics
1 answer:
Leviafan [203]3 years ago
5 0

Answer:

-24 - 57i

Step-by-step explanation:

i'm assuming that this is a question about imaginary numbers and that i²= -1

we can expand the binomial by using the FOIL method (see attached)

(6 − 7i)(3 − 6i)

= (6)(3) + (6)(-6i) + (-7i)(3) + (-7i)(-6i)

=18 - 36i - 21i + 42i²   (recall that i²= -1)

= 18 - 57i + 42(-1)

= 18 - 57i - 42

= -24 - 57i

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The perimeter of a rectangle is (10x2).if it's width is (2x-1),which expression represents the length
alexandr402 [8]

Answer: b. 3x + 2

Step-by-step explanation:

2l + 2w = p

2l + 2(2x - 1) = 10x + 2

2l + 4x - 2 = 10x + 2

2l = 6x + 4

l = 3x + 2

4 0
3 years ago
Please help me because I am an incompetent small brain :0
sdas [7]
I’m pretty sure it is (7, 2)
7 0
3 years ago
PLEASE HELP ASAP! WILL GIVE BRAINLIEST TO CORRECT AND STRONG ANSWER! THANK YOU IM STRUGGLINGGG
KengaRu [80]

Answer:

Step-by-step explanation:

a3 = 2

d = -5

=============

a4 = a3 - 5

a4 = 2 - 5

a4 = - 3

===============

a5 = a4 - 5

a5 = -3 - 5

a5 = - 8

Just take a4 as your answer.

7 0
3 years ago
6
bezimeni [28]

Answer:

260 stickers

Step-by-step explanation:

Let Gareth's stickers be x.

Hence Cheryl sticker is 160+x;

If Cheryl gave 185 stickers

to Gareth, it means:

Cheryl has at the moment;

160 + x - 185 = x - 25

At this time when Gareth receives 185 he now has:

x+ 185

Also when he receives x +185, he has 3 times Cherry's meaning:

x+185 =3(x-25)

x + 185 = 3x -75

185 + 75 = 3x-2x

260= x

x = 260.

Hence Gareth has 260 stickers

5 0
3 years ago
On Saturday Keisha rand 2.536 km on Sunday she ran 1.55 km how much for the did she run on Saturday then on Sunday
Butoxors [25]

Answer:

4.086 or rounded to 4.1

Step-by-step explanation

Since we need to combine the amounts he ran on each day we need to add. We need to add normally and then add the decimal after the number 4. make sure to add km at the end to label your answer.

4 0
2 years ago
Read 2 more answers
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