Chapter 3.4, Problem 12E

Solve the following system of equations. Show all work and solutions.y = 2x2 + 6x + 1y = −4x2 + 1   Please type out answer

Dalia buys 20 collectible gems per month. Grace sells 10 gems from her collection of 120 each month. When will Dalia have more gems than Grace? Show your work.   Dear Student If You Face any issue let me know i will solve your all doubt.   I will provide solution again in more detail systematic and organized way.   I  would also like my last 3 questions credited to me

Dalia buys 20 collectible gems per month. Grace sells 10 gems from her collection of 120 each month. When will Dalia have more gems than Grace? Show your work.

Question 1 20 pts Test data on the bending strength of construction wood poles of various diameter are presented below assuming the same length. Kip- 1000 lbf. Using the following data with 2nd order Newton polynomial interpolation, we want to determine the strength of the material for x=4.9 in. Which data point will be used as x? After you found x0, enter the value of x-xo in the solution. Answer shall be in one decimal place. Distance (in) Strength (kips) 100 3.6 1.1 5.6 3.6 5.6 200 300 400 500

Solve the following system of equations. Show all work and solutions.y = 2x2 + 6x + 1y = −4x2 + 1

Solve the following systems of equations and show all work.y = x2 + 3y = x + 5

Test data on the bending strength of construction wood poles of various diameter are presented below assuming the same length. Kip- 1000 lbf. Using the following data with 2nd order Newton polynomial interpolation, we want to determine the strength of the material for x=4.3 in. Which data point will be used as x0? After you found x0, enter the value of x-xo in the solution. Answer shall be in one decimal place. Distance (in) Strength (kips) 100 2.7 1 6.8 0.6 5.7 200 300 400 500

A test consists of 10 questions made of 5 answers with only one correct answer. To pass the test, a student must answer at least 8 questions correctly. (a) If a student guesses on each question, what is the probability that the student passes the test? (b) Find the mean and standard deviation of the number of correct answers. (c) Is it unusual for a student to pass the test by guessing? Explain.

In a group of 40 people, 35% have never been abroad. Two people are selected at random without replacement and are asked about their past travel experience. a. Is this a binomial experiment? Why or why not? What is the probability that in a random sample of 2, no one has been abroad? b. What is the probability that in a random sample of 2, at least one has been abroad?