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Which of the following best represents the arithmetic series in sigma notation? 7 + 11 + 15 + 19 + ... + 103 => ∑ n=1 4 3 + 25 n or ∑ n=1 25 4 + 3 n or ∑ n=1 25 3 + 4 n or ∑ n=1 3 25 + 4 n..

Find the value of x , if the area of ΔABC is 103.5 square units and the triangles ABC and DEF are similar. [Given b = 9.] => 14.75 units or 15.75 units or 13.75 units or 12.75 units..

What is the volume of a solid bounded by the planes x = 1, x = 3 whose area of cross section perpendicular to x -axis is proportional to ln x where x is the distance of the cross section from the origin, and whose area of cr..

A( x ) = ( 8 x ) is the area of cross section perpendicular to the x -axis of a solid where x is the distance of the cross section from the origin. Find the volume of the solid between the planes x = 1, x = 17 . => 17(l..

What is the volume of a body bounded by the planes x = 2, x = 7 whose area of cross section perpendicular to x -axis is inversely proportional to the square of the distance of the section from the origin and the area of the cross section at x..

Solve the proportion x 10 = x+4 5 using the cross product property. => 10 or 8 or -8 or -10..

Find the point where the line crosses the x -axis. 4 x + y = - 12 => (- 3, 0) or (4, 0) or (- 12, 0) or (12, 0)..

Solve the proportion 3 x = x+1 4 using the cross product property. => -4 or 3 or 8 or -6 or 4 or -3 or -8 or 6..

A solid is resting on the x -axis whose cross section is perpendicular to x -axis. The area of a cross section of the solid is given by sec 2 5 x where x represents the distance of the cross section from the origin. Find the volu..

A( x ) = k x e x is the area of the cross section perpendicular to x -axis of a solid where x is the distance of the cross section from the origin. If the volume of the solid bounded between the planes x = 0, x..