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3 years ago

16

Mathematics

2 answers:

BlackZzzverrR [31]3 years ago

6 0

Answer:

c.33.08

Step-by-step explanation:

add all of them together and you get 140.7 divded by 5 and get 33.08

7nadin3 [17]3 years ago

5 0

C because I just know

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3 years ago

At a certain time of day 1.8m tall person standing next to the Washington monument cast a 0.7m shadow at the same time the Washi

mezya [45]

Answer:

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Step-by-step explanation:

See the image below.

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Line DB represents the man and Line BE it shadow.

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3 years ago

Determine the slope of the line that passes through the points (5,7) and (-1,9).

oee [108]

Hey!

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Slope Formula: $m = \frac{y2 - y1}{x2 - x1}$

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Solution:

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Answer:

$\large\boxed{-\frac{1}{3} }$

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Hope This Helped! Good Luck!

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3 years ago

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

galina1969 [7]

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

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

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

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

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

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2 years ago

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