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tekilochka [14]
3 years ago
7

I need help with adding complex numbers

Mathematics
1 answer:
Usimov [2.4K]3 years ago
4 0

For example:

Find: (3-i)+(2+3i) by graphing

Step 1: Graph 3-i and 2+3i on the complex plane. Connect each of these numbers to the origin with a line segment.


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The negation of " If it rains then the road is slippery"
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You'd be tempted to say, "If it doesn't rain then...", but in fact you don't know what happens then. What you do know, is that if the road is NOT slippery, then clearly it is not raining. 
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3 years ago
Thanks for all the help
bazaltina [42]

Answer:

b

Step-by-step explanation:

9(y+6)+2y(y+3)/((y+3)(y+6))= optin b

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2 years ago
This morning, Raina's car had 18.18 gallons of fuel. Now, 5.7 gallons are left. How much fuel did Raina use?
guapka [62]

Answer:

12.48 gallons

Step-by-step explanation:

Subtract the starting amount from the ending amount

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Read 2 more answers
Someone help me please. I don't just want the answer, I need an explanation on how it's done too.​
NARA [144]

Answer:

Below.

Step-by-step explanation:

f) (a + b)^3 - 4(a + b)^2  

The (a+ b)^2 can be taken out to give:

= (a + b)^2(a + b - 4)

= (a + b)(a + b)(a + b - 4).

g)  3x(x - y) - 6(-x + y)

=  3x( x - y) + 6(x - y)

= (3x + 6)(x - y)

= 3(x + 2)(x - y).

h) (6a - 5b)(c - d) + (3a + 4b)(d - c)

=  (6a - 5b)(c - d) + (-3a - 4b)(c - d)

= -(c - d)(6a - 5b)(3a + 4b).

i)  -3d(-9a - 2b) + 2c (9a + 2b)

= 3d(9a + 2b) + 2c (9a + 2b)

=  3d(9a + 2b) + 2c (9a + 2b).

= (3d + 2c)(9a + 2b).

j)  a^2b^3(2a + 1) - 6ab^2(-1 - 2a)

=  a^2b^3(2a + 1) + 6ab^2(2a + 1)

= (2a + 1)( a^2b^3 + 6ab^2)

The GCF of a^2b^3 and  6ab^2 is ab^2, so we have:

(2a + 1)ab^2(ab + 6)

= ab^2(ab + 6)(2a + 1).

4 0
3 years ago
A craft store has 5 yards and 2 inches of ribbon. The cost of the ribbon is calculated per inch. How many inches of
suter [353]

Answer:

182

Step-by-step explanation:

5 yards = 5*3 = 15 feet

15 feet = 15 * 12 = 180 inches.

There are 2 more inches in the ribbon. 180 + 2 = 182 inches.

3 0
3 years ago
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