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3 years ago

Write (-2 − 2i) + (10 − 4i) as a complex number in standard form.

Mathematics

2 answers:

omeli [17]3 years ago

7 0

I think it would be 8-6i

vitfil [10]3 years ago

5 0

Answer:

Number is 8 - 6i.

Step-by-step explanation:

Given : (-2 − 2i) + (10 − 4i).

To find : Write as a complex number in standard form.

Solution : We have given (-2 − 2i) + (10 − 4i).

We can write it as -2 -2i + 10 -4i

Combine like terms

-2 +10 - 2i -4i.

8 - 6i.

Therefore, Number is 8 - 6i.

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What is 0.973.. as a fraction

Artyom0805 [142]

Well, since it has 3 numbers not including the 0, we could change it to 973/1000.

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4 years ago

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What is this!!!!!!!!!!!!! Help !!!!!!

bezimeni [28]

Answer:

A. y=3x+6

Step-by-step explanation:

1. x=y/3 -2

2.x+2= y/3

3. 3(x+2)=y

Final Answer: y=3x+6

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3 years ago

Solve the question below, please.

Ne4ueva [31]

Answer:

Adam: 52.26°

Step-by-step explanation:

Use Cosine Rule, $Cos(C) = \frac{a^2 + b^2 - c^2}{2ab}$ , to find the angle of both players.

✔️Angle of Carlos:

Let the angle be C,

a = 50 ft

b = 40 ft

c = 24 ft

Plug in the values into the equation

$Cos(C) = \frac{50^2 + 40^2 - 24^2}{2*50*40}$

$Cos(C) = \frac{3,524}{4,000}$

$C = Cos^{-1}(\frac{3,524}{4,000})$

C = 28.24° (nearest hundredth)

✔️Angle of Adam:

Let the angle be C,

a = 30 ft

b = 22 ft

c = 24 ft

Plug in the values into the equation

$Cos(C) = \frac{30^2 + 22^2 - 24^2}{2*30*22}$

$Cos(C) = \frac{808}{1,320}$

$C = Cos^{-1}(\frac{808}{1,320)}$

C = 52.26° (nearest hundredth)

6 0

3 years ago

What is a formula for the nth term of the given sequence?<br> 36, 24, 16...

SpyIntel [72]

Answer:

The formula to find the nth term of the given sequence is 54 · $\frac{2}{3} ^{n}$

Step-by-step explanation:

The formula for nth term of an geometric progression is :

$a_{n} = \frac{a_{1}(r^{n})}{r}$

In this example, we have $a_{1}$ = 36 (the first term in the sequence) and

r = $\frac{2}{3}$ (the rate in which the sequence is changing).

Knowing what the values for r and $a_{1}$ are, now we can solve.

$a_{n} = \frac{a_{1}(r^{n})}{r}$ = $\frac{36 (\frac{2}{3} ^{n}) }{\frac{2}{3} }$ = 54 · $\frac{2}{3} ^{n}$

Therefore, the formula to find the nth term of the given sequence is

54 · $\frac{2}{3} ^{n}$

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3 years ago

Write an expression that is equal to 10 using only four 2s and any number of math symbols

diamong [38]

$(4 \times 2) + 2$

8 0

3 years ago

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