A pendulum is L meters long. The time, t, in seconds that it takes to swing back and forth once is given by

Suppose the pendulum takes 7.86 seconds to swing back and forth once. What is the length?​

Find the value of the cosine for angle a

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6