[Quis] if the diameter of the largest circle is 84 cm then prove the area of ​​the shaded is -11172 -3528√3 + 13860√2 cm ( π = 22/7 )

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Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

Aline passes through 3,7 and 6,9 what equation represents the line