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3 years ago

50 Points

Mathematics

1 answer:

Alexandra [31]3 years ago

5 0

| u + v | = 2

u + v = - 4i + 1j + 4i + 1j = 2j

the magnitude of a vector ai + bj is

| ai + bj | = √(a² + b² )

for u + v = 0 + 2j

| u + v | = √(0² + 2² ) = √4 = 2

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-22 = 6x + 4<br> Hehehhe I need help agaaaaiiin

UkoKoshka [18]

Hey there!

$Answer:\boxed{x=\frac{-13}{3}}$

$Explanation:$

$-22=6x+4$

Let's start off with flipping the equation.

$6x+4=-22$

Now we need to subtract 4 from both sides of the equation.

$6x+4-4=-22-4\\6x=-26$

Now in our third/last step, we will divide both sides by 6.

$\frac{6x}{6}=\frac{-26}{6}$

$x=\frac{-13}{3}$

$\boxed{x=\frac{-13}{3}}\text{ is the answer.}$

Hope this helps!

$\text{-TestedHyperr}$

3 0

3 years ago

If (2i/2+i)-(3i/3+i)=a+bi, then b=

max2010maxim [7]

Answer:

b = -1/10.

Step-by-step explanation:

(2i/2+i)-(3i/3+i)

= 2i(3 + i) - 3i(2 + i) / (2 + i)(3 + i)

= 6i + 2i^2 - 6i - 3i^2 / (2 + i)(3 + i)

= (-2 + 3) / (6 + 5i - 1)

= 1 / (5 + 5i)

Now we multiply top and bottom by 5 - 5i :

= 5 - 5i / (5 + 5i)(5 - 5i)

= 5 - 5i / 25 -25i^2

= 5 - 5i / 50

= 1/10 - 1/10i

6 0

3 years ago

2(3x-1)-3x+4 <br><br> HELP WHAt Is THE ANSWER

11111nata11111 [884]

Step-by-step explanation:

You can use the distributive formula to answer:

a(b - c) = ab - ac

2(3x - 1) - 3x + 4

6x - 2 - 3x + 4

Simplify by the common terms:

3x + 2

That is the answer

Hope that helped!!

~A̷l̷i̷s̷h̷e̷a̷♡

3 0

3 years ago

Read 3 more answers

Help? how can I solve this problem?????

Lerok [7]

A:<
b:>
c:<
...........

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4 years ago

C'est un calcul de développement combien fait : 3x-6+7×(2x+4)

Trava [24]

The answer is 17x+22

3 0

3 years ago