The probabilities of knocking down zero, one, and two pins are 
and 
, respectively. The total probability of knocking down at most two is thus 
, or 
.
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2 answers:
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Step-by-step explanation:
Simply use the general equation of a circle to obtain its equation given the center. Because radius is 5 units, this may be referred to the 3-4-5 triangle, meaning the point on circumference is 3 units across in the x-direction and 4 units up in the y-direction.
