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3 years ago

14

What is the greatest common factor of 8 and 20?

2 answers:

Tamiku [17]3 years ago

7 0

You need to find the biggest number that is a factor of both 8 and 20. Factor's are whole numbers that can be multiplied by other whole numbers to get that number.

Factors of 8

1, 2, 4, 8

Factors of 20

1, 2, 4, 5, 10, 20

The greatest common factor is 4

svp [43]3 years ago

7 0

The greatest common factor is 4

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Let u = (1, k) and v = (2, 1). Find k such that The distance between u and v is 1 u and v are orthogonal The angle between u and

SVETLANKA909090 [29]

Answer:k=1,k=-2,k= $8\pm 5\sqrt{3}$

Step-by-step explanation:

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$|u-v|=\sqrt{\left ( 2-1\right )^2+\left ( 1-k\right )^2}=1$

squaring both side

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k=1

$\left ( ii\right )$

angle between u and v is 90 i.e. orthogonal

$u\dot v=0$

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angle between u & v is $\frac{\pi }{3}$

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