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3 years ago

(6-7i)+(5+4i)= (simplified)

Mathematics

2 answers:

GarryVolchara [31]3 years ago

8 0

Answer:

11-3i

Step-by-step explanation:

6-7i+5+4i=6+5-7i+4i=11-3i

Blizzard [7]3 years ago

6 0

Answer:

(-1i)+(9i)

in the brackets you minus 7 from 6 which takes it to -1i.

Next you add 5 and 4i to get to 9i.

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3 years ago

Simplify<br> 50(x^2+7x+6)

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Distribute $50$ to every term inside the parentheses.

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1 year ago

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Step-by-step explanation:

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2 years ago

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Marrrta [24]

Answer:

$\vec{BC}=2b - 4a$

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Step-by-step explanation:

By the triangular law of vector addition:

$\vec {CY}=\vec {CA}+ \vec{AY}$

$\vec {CY}=a - 2b$

We have that;

$\frac{YB}{AY} = \frac{3}{1}$

$\implies YB = 3 AY \\ \vec {YB} = 3 \vec {AY}$

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From triangle ABC,

$\vec{BC}=\vec{BA}+\vec{AC} \\ \vec{BC}=2b - 4a$

Again from triangle XYB

$\vec{XY}=\vec{YB}+\vec{BX} \\$

$\vec{XY}=\vec{YB}+ \frac{1}{2} \vec{BC}$

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3 years ago