 Lv 43,163 points

# Aaron P

• ### cos (2x + 10 degrees) = - 1/2?

Mathematics8 years ago

• ### cos 2x = cos x (solve for all x: 0<x<360)?

cos 2x = cos x

i am sure i need to use one of the three double angle identities, but cant tell which one.

• ### (3^(2x)) - (7)(3^x) + 10 = 0 solve for x without graphing?

I can enter this into my graphing calculator and find the zeroes, but i want to know is there a way to solve for x, without graphing it

• ### original capital: 600,000 income: 30,000/week, expenses:28,000 V(x)=?

value of the business after x weeks = ?

• ### variable cost: \$24/unit, fixed costs: 80,000, selling price: \$32/unit, Profit Eqn?

What is the profit equation, P, in terms of variable,q, and units sold and produced?

• ### variable cost: \$24/unit, fixed costs: 80,000, selling price: \$32/unit, Profit Eqn?

What is the profit equation, P, as a function of,q,the variable cost, then number of units produced and sold?

Also, how many units did the company need to sell to profit \$55,000?

solve for x

solve for x

• ### STATISTICS: At a 0.10 significance level,is there a difference between the following groups?

The Course Manager wantys to use a new tutorial to teach the students about business ethics. As an experiment she randomly selected 15 students and randomly assigned them to one of three groups which include either a PowerPoint presentation, an AuthorGen presentation, or an ABC presentation. After completing tehir asigned tutorial, the students are given a test. At the .10 level of significance level, can she conclude that there is a difference between how well the different tutorials worked?

PP scores: 98, 85,91,87,98

AG scores: 79,86,72,82,91

ABC scores: 65,73,78,96,97

• ### log base 9 of x = (1/3) log base 9 of 64 + (1/4) log base 9 of 81?

Solve for x. I know that log base 9 of 81 is 2, but can't figure out where to go from there.

• ### SOlve for 'x' without graphing...5 ^ (3x) = 4 ^ (x+3)?

I can use a graphing calculator to deduce that x = 1.2082684. but that isn't "the answer".

• ### Statistics: How does level of significance relate to the z-table?

The Dean at University of Maryland is concerned about the high cost of textbooks for each semester. A sample of 75 students enrolled indicates that X(bar) = \$285.40 and s = \$42.20. Using a 0.05 level of significance, is there evidence that the population mean is above \$300.00?

• ### Statistics: How does level of significance relate to the z-table?

The Dean at University of Maryland is concerned about the high cost of textbooks for each semester. A sample of 75 students enrolled indicates that X(bar) = \$285.40 and s = \$42.20. Using a 0.05 level of significance, is there evidence that the population mean is above \$300.00?

• ### How do you find the (x-coordinate of the ) (local) maximum (or minimum) of a cubic equation?

e.g. x^3 - 2x^2 - 4x + 8 has a maximum at x = -2/3. How can you find this without a calculator?

• ### Which one is the rearview mirror?

Aren't all 3 rearviewing?