The decay of 923 mg of an isotope described by the function A(t)= 923e-0.027t, where t is time in years. Find the amount left after 76 years. Round your answer to the nearest mg. Show all of your work for full credit. (5 points)

Find the amplitude y = -5 sin x. (5 points)

Determine whether the graph is the graph of a function. (5 points)

Find the exact solution to the equation. (5 points) 7-log2(x+5) = 6

Determine the function which corresponds to the given graph.(5 points) The asymptote is x = 5.

Determine the function which corresponds to the given graph.(5 points) The asymptote is x = 4. 

State the vertical asymptote of the rational function. (5 points)f(x) =  

; g(x) = 8x – 6Find f(g(x)). (5 points)

Use a calculator to find the approximate value of arccos(0.67). (5 points)

A simply-supported beam has a 3 kip/ft uniformly-distributed load over the left half of its 13-ft span. What is the magnitude of the shear force at midspan?