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3 years ago

Express the complex number in trigonometric form. -4

Mathematics

2 answers:

raketka [301]3 years ago

8 0

Answer:

4(cos180+itan180)

Step-by-step explanation:

salantis [7]3 years ago

7 0

Ok this is a negative number.
All negative numbers have argument $\pi$
Obviously, the module of this number is $\vert-4\vert=4$
The general trigonometric form of a complex number is:
$z=\vert z\vert(cos\theta+i\sin\theta)$
We deduce the trigonometric for of -4:
$-4=4(cos\pi+i\sin\pi)$

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Use the graph to determine the domain and range of the relation, and whether the relation is a function

MAVERICK [17]

domain is correct for b and c

the graph is a function because each value of x has only one y value

hence answer is B

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3 years ago

PLEASE HELP ASAP!! an onion soup recipe calls for 3 2/3 cups of chopped onions. katrina has already chopped 1 1/3 cups of onions

ivanzaharov [21]

Answer:

$x+1\frac{1}{3}=3\frac{2}{3}$

Step-by-step explanation:

Let the number of cups of onions Katrina still needs to chop = x

She has already chopped the onions = $1\frac{1}{3}$ cups ≈ $\frac{4}{3}$ cups

So total amount of chopped onions = $(x+\frac{4}{3})$ cups

Since, onion soup recipe calls for the chopped onions = $3\frac{2}{3}$ cups ≈ $\frac{11}{3}$ cups

Therefore, equation which shows the number of cups of onions to be chopped more will be,

$x+1\frac{1}{3}=3\frac{2}{3}$

We further solve this equation for the value of x,

x = $\frac{11}{3}-\frac{4}{3}$

x = $\frac{(11-4)}{3}$

= $\frac{7}{3}$ cups

≈ $2\frac{1}{3}$ cups

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3 years ago

In the number 340.79 , the 0 is in what place

kirill115 [55]

Answer:

units

Step-by-step explanation:

The zero (0) is in the units place. unit = 1

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4 years ago

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Un motor de 90 kW se utiliza para elevar una carga de 1 200 kg. ¿Cuál es la velocidad media durante el ascenso?

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3 years ago

A parking garage has 500 parking spaces. One morning 330 parking spots were filled. What percent of the parking spaces were fill

blondinia [14]

Hey there! :D

So, what we need to do is make a fraction that has a denominator of 100. This is the simplest route to take.

330/500

If you took one zero away from each side, you will get an equivalent fraction:

33/50

Multiply both side by 2 to get to 100.

33*2=66 50*2=100

66/100

So, 66% percent ornament the parking lots were filled.

I hope this helps!
~kaikers

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3 years ago