Question 4 52
+
A certain surgery has a 70% chance of success. The surgery is performed on three
patients. Find the probability of the surgery being successful on exactly two patients.
49%
44.1%
14.7%
0.147
.
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4

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field