Solve. Use a calculator to approximate the irrational solutions to three places.x2 + 9 = 19
A. -4.641
B. ±5.292
C. -4.641, -13.359
D. ±3.162
Answer: D
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Find all real roots of the given equation by using Newton's method.2x3 = 
A. 1.3535272, 0.3517773, -1.6834522 B. 1.3535272 C. 1.3535243 D. 1.3535243, -1.6834522
Use the integral test to determine whether the series converges.
A. diverges B. converges
Find the direction the parabola opens, the coordinates of the vertex, the equation of the axis of symmetry and draw the graph.x = -(y + 1)2 + 6
A. 
opens left; vertex (1, -6);
axis of symmetry y = -6
B. 
opens left; vertex (6, -1);
axis of symmetry y = -1
C. 
opens left; vertex (-1, 6);
axis of symmetry y = 6
D. 
opens left; vertex (6, 1);
axis of symmetry y = 1
Solve the problem.The length of each side of a square is multiplied by two and decreased by three. The area of the square is 169. Find the length of each side.
A. - 8, 8 B. 5 C. ? D. 8