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3 years ago

Help! Find the value of x.

Mathematics

2 answers:

olga55 [171]3 years ago

8 0

Answer:

30 degrees

Step-by-step explanation:

the sum of a triangles angles needs to be 180 and since its an equilateral, all angles are the same so if each angle is 60 degrees do

60 / 2 = x

x = 30

netineya [11]3 years ago

4 0

Answer:

Step-by-step explanation:

You add all of the side numbers together. Think this way, area you add because area starts with an A. Hope it helps.

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Convert the complex number z = 4 - 10i from rectangular form to polar form.

mrs_skeptik [129]

ANSWER

$r = 2 \sqrt{29} ( \cos(292 \degree) + \sin(292 \degree))$

EXPLANATION

The polar form of a complex number ,

$z = x + yi$

is given by:

$z = r( \cos( \theta) + i \sin( \theta) )$

where

$r = \sqrt{ {x}^{2} + {y}^{2} }$

The given complex number is:

$z = 4 - 10i$

$r = \sqrt{ {4}^{2} + {( - 10)}^{2} }$

$r = \sqrt{16 + 100}$

$r = \sqrt{116} = 2 \sqrt{29}$

And

$\theta= \tan^{ - 1}(\frac{ y}{x} )$

$\theta= \tan^{ - 1}(\frac{ - 10}{4} )$

$\theta= 292 \degree$

Hence the polar form is :

$r = 2 \sqrt{29} ( \cos(292 \degree) + \sin(292 \degree))$

6 0

3 years ago

How to simplify the expression <br> 10h+6-5h+3

marin [14]

Answer:

You just have to combine terms

Step-by-step explanation:

10h + 6 - 5h +3 can be written as:

10h - 5h + 3 + 6 (now all you have to do is combine terms)

8 0

3 years ago

In Alaska, the temperature at noon was 18 degrees<br> below zero. is it positive/negative?

olasank [31]

Negative, because it’s -18 degrees not 18 degrees

8 0

3 years ago

Helpppppppppppppppppppppp meeeeeeeeeeeee plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

IceJOKER [234]

Answer:

A (-2, 3)

Step-by-step explanation:

-2-3=-5

-2+3=1

3 0

3 years ago

Read 2 more answers

I never learned this if you could give me the answer you are on my top brainliest

kupik [55]

1/24 because you need to multiple all 3 of them.

5 0

4 years ago