Which equation could be used to calculate the sum of the geometric series? 4+1+14+116+164

Recall that Sn=a1(1−rn)(1−r)

Group of answer choices

S5=14(1−(4)5)(1−4)

S5=4(1−(14)5)(1−14)

S5=4(1−14)

S5=14(1−4)

Find parametric equations for the line. (enter your answers as a comma-separated list of equations. let x, y, and z be functions of t.) the line in the direction of the vector 5 i + 5 j − 6k and through the point (−4, 4, −2).

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.