Because some people are unable to stand to have their height measured, doctors use the height from the floor to the knee to approximate their patients’ height (in cm).

height of kneeoverall height57192471534314644160551715417 6

a. use excel to determine the correlation coefficient of this data

b. use excel to determine the regression equation of this data

c. find the overall height from a knee height of 45.3 cm

d. find the overall height from a knee height of 52.7 cm

choose one • 20 points

a. r = 0.73220213

b. equation: y = 2.0217x + 67.746

c. 159.32901

d. 174.28959

a. r = 0.82544241

b. equation: y = 2.5109x + 40.79

c. 154.53377

d. 173.11443

a. r = 0.53611996

b. equation: y = 2.0217x + 67.746

c. 159.32901

d. 174.28959

a. r = 0.908553861

b. equation: y = 2.5109x + 40.79

c. 154.53377

d. 173.11443

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

You and three friends will be going out to eat at your favorite restaurant! each of you will order three items of your choice. you will also need to leave a tip. if you split the bill evenly among all four of you, how much will each person need to contribute? locate a menu for your favorite restaurant and pick three items for yourself and each friend. list the restaurant name, items, and prices in a table like the one below. in the column labeled subtotal, determine the cost of each person’s order. the customary tip is 20% of the total bill. in the column labeled tip, calculate the amount of tip each person should leave. in the column labeled total bill, determine the total of each person’s order, including the tip. restaurant name: names item 1 price item 2 price item 3 price subtotal tip total bill your name friend #1 friend #2 friend #3 part 2: questions answer the following questions, showing all work: what is the total cost of the entire bill (all four meals), including tip? write an expression using fractions to show how to determine the amount that each person will pay. then calculate each person's contributions showing all steps in long division. if each person paid an equal amount, who would save the most money? explain your reasoning using at least two complete sentences.