Evaluate f(x + 3) when f(x) = 3x² + 4x − 4

Please show detailed step-by-step explanation and solution for each problem (problem #2, problem #3, problem #4, problem #5, and problem #6).  Please use the results of problems #2 and problems #3 to solve and show your work for problems #5 and problems #6 (just like the hint stated).

I just have a question. I’ve been getting help with this problem. It doesn’t show it fully but it’s “ share of first person + share of second person+ share of third person=1”. On step b where it says 12-7-2/12, where is the 2 coming from. I understand the LCM part but I’m not seeing where the 2 comes from.

This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part.   A person's lean body weight L is the amount he or she would weigh if all body fat were magically to disappear. One text gives the "equation that practitioners can use most feasibly in the field to predict lean body weight in young adult males." The equation is found below. L = 98.42 + 1.08W − 4.14A Here L is lean body weight in pounds, W is weight in pounds, and A is abdominal circumference in inches. Find the approximate lean body weight of a young adult male who weighs 181 pounds and has an abdominal circumference of 41 inches. What is the weight of his body fat? What is his body fat percent?

F1.6 Question 18 please write on paper

For the following questions, THERE IS NO NEED FOR EXPLANATION. PLEASE PROVIDE JUST THE ANSWER THANK YOU. Please DO NOT waste time on writing things to explain. Please answer in 30 mintues or else I will write a bad review. If you follow my rules and answer in less than 30 mintues then I will write a very long and wonderful review about you. ANSWER the questions correlty and please answer all the questions with what it regards in saying exactly.

Can i share my screen and show you a homework problem that I thought I did right but is wrong and I don't know what I've done wrong?

Please show as much work as possible, and please do not skip steps. I really want to learn how to solve this, so if you use a axiom please include it.   Problem Statement: One out of every one- thousand people have disease X. A new test for X is available, but it's not very accurate. If you have X, there is an 80% chance the test comes back positive and a 20% chance it comes back negative. If you don't have X, there is a 60% chance the test comes back negative and a 40% chance it comes back positive. Question: You are randomly chosen to be tested for X. Since the test is not very accurate, you areadministered the test 10 times; assume the outcomes of these 10 tests are independent. Sevenout of the 10 tests come back positive. Given these test results, what is the probability youhave X?

I am studying for a precalculus exam and I am stuck on this problem and would like help.    Question 9 is the one I'm working. The orange line is around where I believe I messed up. Below that line is an answer I got from a calculator in order to finish question 10. I need help understanding how to complete question 9 without using an internet calculator.