Mathematics, 24.07.2019 21:20, slimt3763
Alocal school needs to paint the floor of its theater room, where the length of the floor, x, is at least 12 feet. the width of the floor is 4 feet less than the length. it will have a stage and a closet, and the remaining area of the floor will be painted. the dimensions are shown in the diagram:
rectangle with length of x ft and width of x minus 4 ft, right triangle inside labeled stage with height of x minus 4 ft and base of 8 ft, rectangle inside labeled closet with length of 8 ft and width of 4 ft, the rest of the rectangle is labeled floor
let a represent the painted area, in square feet, of the floor. choose the correct equation to solve for area (a).
a.)a = x(x β 4) β 0.5(8)(x β 4) β 4(8)
b.)a = x(x β 4) β (8)(x β 4) β 4(8)
c.)a = x(x β 4) + (8)(x β 4) + 4(8)
d.)a = x(x β 4) + 0.5(8)(x β 4) + 4(8)
Answers: 3
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Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working
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