Classof1: 424 books

Simplifying an algebraic expression.

Calculating the  fractions below in terms of the LCM of the denominators.

Five neighborhoods (NB) all want to raise money for a playground for their kids. The neighborhood that raises the most money will be able to choose the name of the park. To raise money, they all decide to have a bake sale and sell cookies (C), cakes (K), and muffins (M). They plan to sell their bake...

"Solve for X, Y, and Z using either substition or elimination methods: 22X + 5Y + 7Z = 12; 10X + 3Y + 2Z = 5; 9X  +  2Y +  12Z = 14 "

"1. How many six-letter permutations can be formed from the first eight letters of the alphabet? 2. In how many ways can an investor select five mutual funds for his investment portfolio from a recommended list of nine mutual funds? 3. In how many ways can seven students be seated in a row of seven seats? "

During recent seasons, Major League Baseball has been criticized for the length of the games. A report indicated that the average game lasts 3 hours and 30 minutes. A sample of 17 games revealed the following times to completion. (Note that the minutes have been changed to fractions of hours, so that a game that lasted 2 hours and 24 minutes is reported at 2.40 hours.

Write the fractions below in terms of the LCM of the denominators.

"The cost, in millions of dollars, to remove x % of pollution in a lake modeled by  a. What is the cost to remove 75% of the pollutant? b. What is the cost to remove 90 % of the pollutant? "

A company’s employees are working to create a new energy bar. They would like the two key ingredients to be peanut butter and oats, and they want to make sure they have enough carbohydrates and protein in the bar to supply the athlete. They want a total of 31 carbohydrates and 23 grams of protein...

How many years will it take for carbon-14 to diminish to 1% of the original amount after the death of a plant or animal? Use the formula A=A0e(-0.000124t). Compute the answer to three significant digits.

"Give all four quantum numbers for the outermost electron in a Rubidium (Rb) atom. b. What are the possible values of the four quantum numbers for one electron in a 5d orbital? 2. For Germanium (Ge) atom, give a. The Complete electron configuration b. The abbreviated electron configuration "

Find the coefficient of (a^6)(b^2) in the expression (a^2 - 2^b)^9.

"A group of students decides to sell pizzas to help raise money for their senior class trip. They sold pepperoni for $12, sausage for $10, and cheese for $8. At the end of their sales the class sold a total of 600 pizzas and made $5900. The students sold 175 more cheese pizzas than sausage pizzas....

Approximate the function  f(x) = 3lnx^4    about the point where x = a = 1 as a 3rd order Taylor series