In this setting we have Σx = 129, Σy = 82, Σx2 = 2405, Σy2 = 956, and Σxy = 1497. (a) Find x, y, b, and the equation of the least-squares line. (Round your x and y to two decimal places. Round your least-squares estimates to four decimal places.) x =  y =  b =  ŷ =  +  x   (c) Find the sample correlation coefficient r and the coefficient of determination. (Round your answers

Emily is making two pizzas at home. For each pizza, she needs to prep the dough and put it intothe oven, which takes 8 minutes per pizza. In the oven, the pizza bakes for 6 minutes. Then,Emily takes the pizza out and slices it, which takes 2 minutes. The oven can only hold one pizzaat a time. How long will it take her to make the two pizzas? Please draw a Gantt chart to find thesolution.

In 1940​, a certain​ country's population was 74,118,244 and its area was 2,958,500 square miles. In 2000​, the​ country's population was 284,268,246 and its area was 3,639,819 square miles. Compute the population densities of both years.       The population density in 1940 was nothing people per square mile. ​(Round to the nearest whole number as​ needed.)

Last year's freshman class at big state university totaled 5,304 students. Of those, 1,257 received a merit scholorship to help offset tuituon costs their freshman year (although the amount varied per student). The amount a student recieved was N($3,443, $450). If the cost of full tuition was $4,500 last year, what percentage of students who recieved a merit scholarship did not recieve enough to cover full tuition? (Round your answer to the nearest whole percent.)

Calculate P(eating breakfast | age 14-17 )

with an eor L0.0000l,Evalute xp. free

Two companies are raising money for an organization that supports patients with breast cancer. Algorithms Corp. purchased 10,000 t-shirts for $27,500. They plan to stamp a cool logo in the front and back of the t-shirts and sell them for $15 each. Pura Vida Social, LLC purchased 20,000 sports water bottles for $15,250. They plan to customize and sell them for $10 each. Let x represent the number of items each company could sell, h(x) represents total potentail profit raised by Algorithms Corp. and g(x) represent total potentail profit raised by Pura Vida Social, LLC. Part A: Write an expression for h(x) and g(x) Part B: for what value of x does h(x)=g(x) Part C: what does it mean for h(x)=g(x) Part D: what is a reasonable domain for h(x) Part E: what is a reasonable domain for g(x) Part F: What do the domains tell us about this situation

Jester's Deli sells 640 sandwiches at a price of $8 each. A market survey shows that for every $0.10 reduction in price, 40 more sandwiches will be sold. Let x represent the number of $0.10 reductions.

The Centers for Disease Control and Prevention estimates that 0.2% of the US population died of heart disease in 2006.  A new medical treatment plan claims that it will reduce the risk of dying from heart disease by 12%.  There were approximately 311 million people in the US in 2006.  With this new treatment plan, how many people could be saved in a year if it works?     74,640     622.000     746,400     37,320,000     62,200,000

You work as a health inspector and must visit each of the 15 restaurants in town once each week, In how many different orders can you make these inspections?