Classof1: 424 books

The carbon-carbon bond distance for single-bonded carbons, such as those in a saturated fatty acid chain, is about 1.5 A0. Estimate the length of a single molecule of palmitic acid (16:0) in its fully extended form. From this, estimate the thickness of the lipid bilayer in a biological membrane.

"To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one variable that could be used to solve for the...

"1. Calculate Mean and Median time spent working on QM 2. Calculate the Variance and Standard Deviation of time spent working on QM 3. Calculate the 25th and 75th percentile of time spent working on QM 4. Calculate the Coefficient of Skewness and the Coefficient of Variation for time spent working...

"Use augmented matrices to solve the following   systems of equations. "

"A 2.0 kg ball swings in a vertical circle on the end of an 80cm long string. The tension in the string is 20N when its angle from the highest point on the circle is 30 deg a. What is the ball’s speed, when angle is 30 deg? b. What is the magnitude of the ball’s acceleration, when angle...

"Assume the likelihood that any flight on Northwest Airlines arrives within 15 minutes of the scheduled time is .90. We select four flights from yesterday for study. a. What is the likelihood all four of the selected flights arrived within 15 minutes of the scheduled time? b. What is the likelihood...

"Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test. a. As the number of animals tested increases, what happens to the average cost to test the animals?...

"Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $2,500 for setup costs and $3.00 to administer each test. a. Write an expression that gives the total cost to test x animals. b. Write the expression that gives the average cost per animal. "

My father is 27 years older than me and my age is one fourth of my father’s age, create a system of linear equations and find my and my father’s age.

"Solve for X and Y using either substitution or elimination methods. a. X + Y= 6 ,  2X + Y = 8 b. 7X + 3Y = 14 ,  5X + 9Y = 10 "

"Determine the probability that a household owns at least three television sets. : Show work. a) 0.18 b) 0.21 c) 0.39 d) 0.61 "

The sample mean is 50, the t-statistic is 1.96, and the standard error of the sample mean is 2. What is the 95 percent confidence interval? a. 46 to 50 b. 46.08 to 53.92 c. 46.80 to 53.29 d. 48 to 52

The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity). An economist selected a sample of 20 homeowners in New England and then calculated...

"A farmer in Iowa owns 45 acres of land. He is going to plant each acre with wheat or corn. Each acre planted with wheat yields $200 profit, requires 3 workers, and requires 2 tons of fertilizer; each with corn yields $300 profit, requires 2 workers, and requires 4 tons of fertilizer. One hundred...