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Elena L [17]
3 years ago
12

Please help with this question i really need help

Mathematics
1 answer:
zzz [600]3 years ago
8 0

Answer:

1,2,3 and then the last two

Step-by-step explanation:

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Answer:

ytyu

Step-by-step explanation:

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An aquarium holds 4 gallons of water. Every fish needs 1 1/3 gallons of water. How many fish can be placed in the aquarium?
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3 fish

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4g / 4/3 fish

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4

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3 years ago
A train moving at a constant speed travels 3 miles every five minutes. A car moving at a constant speed travels 12 miles every 2
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4 years ago
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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
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