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2 years ago

I need help with these 6: questions. 1/2-3/10,3/8-1/4,2/3-1/2,3/5-3/10,5/12-1,And 3/5-12

Mathematics

2 answers:

stepan [7]2 years ago

4 0

1/5, 1/8, 1/6, 3/10, -7/12, -11 2/5

Keith_Richards [23]2 years ago

3 0

Answer:

1.) 1/5 2.) 1/8 3.) 1/6 4.) 3/10 5.) -7/12 6.) -11 2/5 hope this helped

Step-by-step explanation:

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SPAM IN THE QUESTION COMMENTS free points to :)

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Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

How would you solve this? help.

Eddi Din [679]

Answer:

Center: (3,3)

Radius: $2\sqrt{5}$

Step-by-step explanation:

Midpoint and Distance Between two Points

Given two points A(x1,y1) and B(x2,y2), the midpoint M(xm,ym) between A and B has the following coordinates:

$\displaystyle x_m=\frac{x_1+x_2}{2}$

$\displaystyle y_m=\frac{y_1+y_2}{2}$

The distance between both points is given by:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Point (5,7) is the center of circle A, and point (1,-1) is the center of the circle B. Given both points belong to circle C, the center of C must be the midpoint from A to B:

$\displaystyle x_m=\frac{5+1}{2}=\frac{6}{2}=3$

$\displaystyle y_m=\frac{7-1}{2}=\frac{6}{2}=3$

Center of circle C: (3,3)

The radius of C is half the distance between A and B:

$d=\sqrt{(1-5)^2+(-1-7)^2}$

$d=\sqrt{16+64}=\sqrt{80}=\sqrt{16*5}=4\sqrt{5}$

The radius of C is d/2:

$r =4\sqrt{5}/2 = 2\sqrt{5}$

Center: (3,3)

Radius: $2\sqrt{5}$

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