Solve the equation by completing the square.15n2 + 43n + 30 = 0

A.  
B.
C. - -  
D. - -  


Answer: D

Mathematics

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Solve the problem.Find the sum of the infinite series 1 + 9r + r2 + 9r3 + r4 + 9r5 + r6 + . . . for those values of r for which it converges.

A.
B.
C.
D.

Mathematics

Find dy.y = 5 - 

A.  dx
B.  dx
C.  dx
D.  dx

Mathematics

Solve.Approximate to the nearest hundredth the volume of a sphere with diameter of 1.6 meters. Use 3.14 for ?.

A. 2.14 cu m B. 8.04 cu m C. 1.34 cu m D. 12.86 cu m

Mathematics

Two sides and an angle are given. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results.B = 43°, b = 4, a = 25

A. one triangle A = 42°, C = 96°, c = 30.5 B. one triangle A = 41°, C = 95°, c = 29 C. one triangle A = 39°, C = 97°, c = 26 D. no triangle

Mathematics