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Julli [10]
3 years ago
6

Use the following equation y = 3x + 15 to solve for y when x = 3.

Mathematics
2 answers:
Ede4ka [16]3 years ago
5 0
Y = 3(3) +15

y = 9 + 15

y= 24
Digiron [165]3 years ago
5 0
3 times 3 equals 9 then you add it with 15, your answer is 24, or b. Have a good rest of your day !
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ddd [48]
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Applying that here:

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7 0
3 years ago
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3 years ago
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} )

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Hence the polar form is :

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

6 0
3 years ago
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Basile [38]

Answer:

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7 0
3 years ago
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agasfer [191]
2* 10^4 would be bigger than 8* 10^3.

10^4 = 10000*2=20000
10^3 = 1000*8=8000
8 0
3 years ago
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