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3 years ago

There are 9 computers and 72 students. What is the unit rate of students to computers?

Mathematics

2 answers:

IRISSAK [1]3 years ago

8 0

The answer is A my dude, this is easy math lol

BigorU [14]3 years ago

6 0

Answer:

I REALLY DONT CARE xD

Step-by-step explanation:

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Which are perfect square trinomials?

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Answer:

square trinomial if it can be factored into a binomial multiplied to itself. ... For example, in the trinomial x2 - 12x + 36, both x2 and 36 are perfect squares.

Step-by-step explanation:

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3 years ago

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3 years ago

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If F(x)=4x-3over7,which of the following is the inverse of F(x)

polet [3.4K]

Answer:

let g be f(x)

g= 4x -3

. 7

make x the subject

7g +3. =x

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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 |

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

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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kirill115 [55]

B. (1, –3)

x – y = 4
8x + 2y = 2

1 - (-3) = 4
8(1) + 2(-3) =
8 - 6 = 2
True

hope this helps

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3 years ago

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