Given the definitions of f(x) and g(x) below find the value of (g composed of f) (1) f(x)= 3x^2+2x-3

g(x)= -x+4

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Use law of cosines to prove the measures of angles a, b, and c in the triangle below are equal. then find the exact value of cos a and explain why that value implies ma = 60°.

Sales personnel for skillings distributors submit weekly reports listing the customer contacts made during the week. a sample of 55 weekly reports showed a sample mean of 17.5 customer contacts per week. the sample standard deviation was 5.8. provide 90% and 95% confidence intervals for the population mean number of weekly customer contacts for the sales personnel. a. 90% confidence interval, to 2 decimals b. 95% confidence interval, to 2 decimals