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4 years ago

13

Can someone please help

1 answer:

Nataly_w [17]4 years ago

6 0

I'm guessing 58.726, I did the Math a while ago.

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IRINA_888 [86]

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3 years ago

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Hurry I need help pls hurry.

Sav [38]

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3 years ago

Find each absolute value<br><br>| 4+2i |<br><br>| 5-i |<br><br>| -3i |

galina1969 [7]

How to get answer for number 1: | 4+2i |

$\left|a+bi\right|\:=\sqrt{\left(a+bi\right)\left(a-bi\right)}=\sqrt{a^2+b^2}\\\mathrm{With\:}a=4,\:b=2\\=\sqrt{4^2+2^2}\\Refine\\=\sqrt{20}\\\sqrt{20}=2\sqrt{5}\\=2\sqrt{5}$

How to get answer for number 2: | 5-i |

$\left|a+bi\right|\:=\sqrt{\left(a+bi\right)\left(a-bi\right)}=\sqrt{a^2+b^2}\\\mathrm{With\:}a=5,\:b=-1\\=\sqrt{5^2+\left(-1\right)^2}\\=\sqrt{26}$

Number 3 how to get answer: | -3i |

$\left|a+bi\right|\:=\sqrt{\left(a+bi\right)\left(a-bi\right)}=\sqrt{a^2+b^2}\\\mathrm{With\:}a=0,\:b=-3\\=\sqrt{0^2+\left(-3\right)^2}\\Refine\\=\sqrt{9}\\\sqrt{9}\\\mathrm{Factor\:the\:number:\:}\:9=3^2\\=\sqrt{3^2}\\\mathrm{Apply\:radical\:rule}:\quad \sqrt[n]{a^n}=a\\\sqrt{3^2}=3\\= 3$

4 0

3 years ago

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Helpp fast will name brainliest5. A worker drives 2 hours each day to work. Write an algebraic expression to represent the numbe

Alchen [17]

The first question is d

i think the second one is c

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3 years ago

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I will give the brainliest crown to whoever gets it right!

qaws [65]

Answer:

71

Step-by-step explanation:

x + (x+2) + (x+4) + (x+6) + (x+8) + (x+10) = 456

6x + 30 = 456

add -30 to each side

6x = 426

divide each side by 6

x = 71

4 0

3 years ago

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