Evaluate using the order of operations.10.7 - 13 ?  + (72.7 - 89.2)

A. -20.4
B. -22.6
C. -20.1
D. -21.4


Answer: D

Mathematics

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Solve the equation.0.83x + 0.87(14 - x) = 11.9

A. {-0.07} B. {0.07} C. {7} D. {-7}

Mathematics

Solve the problem.A satellite dish is in the shape of a parabolic surface. Signals coming from a satellite strike the surface of the dish and are reflected to the focus, where the receiver is located. The satellite dish shown has a diameter of 14 feet and a depth of 3 feet. The parabola is positioned in a rectangular coordinate system with its vertex at the origin. Write an equation in the form of  for the parabola used to shape the dish. 

A. y = x2
B. y = x2
C. y = x2
D. y = x2

Mathematics

Find the volume of the solid. Use  for ?. 

A. 60 cu m B. 10 cu m C. 180 cu m D. 13 cu m

Mathematics

Find the perimeter and the area of the quadrilateral.Perimeter = __________ in.Area = __________ .

What will be an ideal response?

Mathematics