F(x)=2x-1 and g(x)=-3x a. f[g(x)]=-12; g[f(x)=9 b. f[(g(x)]=-13; g[f(x)=-9 c. f[(g(x)]=12; g[f(x)=-6 d. f[g(x)]=13; g[f(x)=6

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

Determine domain and range, largest open interval, and intervals which function is continuous.

If the car had not hit the fence, how much farther would it have skidded? solve the skid-distance formula to find the extra distance that the car would have traveled if it had not hit the fence. round your answer to two decimal places. note that unit conversion is built into the skid distance formula, so no unit conversions are needed.