Find the first term and the common ratio of the geometric progression that has second term equal to 5 and sum to infinity equal to 20.

Find a value of a so that f is continuous at c, or indicate this is impossible.Let f(x) = (sin x)x, x ?0. Extend the definition of f to x = 0 so that the extended function is continuous there.

A. f(x) =  
B. f(x) =  
C. f(x) =  
D. f(x) =  

Name the conic.

A. circle B. ellipse C. hyperbola D. parabola

Determine whether the equation is linear or nonlinear.x2 - 5 = 4 

A. linear B. nonlinear

Evaluate. dx

A. 13 + C
B. 0
C. x² + C
D. 13x + C