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3 years ago

What is (3 - 3i)(-5 - 4) in the form a + bi?

Mathematics

2 answers:

Naya [18.7K]3 years ago

8 0

Answer:

-27+27i

Step-by-step explanation:

you are trying to simplify this and have to follow pemdas and rearrange it into a+bi form

Ulleksa [173]3 years ago

4 0

Answer:

Hey

Step-by-step explanation:

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Does anyone know how to solve this?

Margarita [4]

Answer:

The correct option is c.

Step-by-step explanation:

Given that,

u = 7i+4j and v = 2i-3j

We need to find the product of u and v. The dot product of two vectors is given by :

$u{\cdot}v=(7i+4j){\cdot} (2i-3j)\\\\=(7i)(2i)+(4j)(-3j)\\\\=14-12\\\\=2$

So, the dot product of u and v is equal to 2.

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3 years ago

SOMEONE PLEASE HELP and please explain it so I won't get confused further on

Pavlova-9 [17]

Number 5 is 110 degrees because it is the same angle as m<2.

Now, to find m<7
A straight line is 180 degrees. One side is already given. m<8+m<7 = 180 degrees. So 180-110=70.

Answers:
4. m<7= 70 degrees

5. m<8= 110 degrees

3 0

2 years ago

Simplify each expression (e^2) (g) (g^4) (e^3) (e)( e^2) (e)

poizon [28]

Answer:

(e^2) (g) (g^4) (e^3)=e^b

(e)( e^2) (e)=ve^4

Step-by-step explanation:

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2 years ago

Which of the following are solutions to the equation below?

Ber [7]

Answer:

its B. -27

Step-by-step explanation:

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3 years ago

Solve the problem c=3.14d for d

Maksim231197 [3]

Answer:

$c = 3.14d \\ d = \frac{c}{3.14}$

It's change of subject. :)

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2 years ago

What is (3 - 3i)(-5 - 4) in the form a + bi?​

What is (3 - 3i)(-5 - 4) in the form a + bi?