Mathematics

The president of a golf club wants a sample of 10 members to discuss the future of the club. Which sampling me

The president of a golf club wants a sample of 10 members to discuss the future of the club. Which sampling method will result in a sample that is unbiased? Pick 10 members who are the best golfers.

How do you know which one is the base and height

http://tinypic.com/view.php?pic=2094z14&… yeah dumb question i know. but im not sure!-12 is base. Height = ( 8 + 4 ) / 2 = 6 Area = 12 x 6 = 72 sq.ft Answer

What is the capacity of a 8cm cube in liters

Please tell me the equation you did like 8*3*3.14=blah blah or whatever thnxx! And btw this isnt a question on a test or homework, just figured I should know for future reference!-I dont think the ans

Differential equation problem!!!

Solve this initial following [(e^x cosy+2y)/siny]dy/dx + e^x = 0-The equation gives and exact differential form. (e^x cos(y) + 2y) dy + e^x sin(y) dx = 0. ∂/∂y e^x sin(y) = e^x cos(y) = ∂/∂x (e^x

Logs Need Help (Pre Calc)

27^4x= 9^x+4 ^ (3^3)^4x= (3^2)x+4>>>> 3^12x=3^2x+8>>>> 12x=2x+8>>>>>> 4x/2x=2x/2x= x=2 what am i doing wrong....-27^(4x) = 9^(x + 4) 3^(12x) = 3^(2x + 8) 12x = 2x + 8 ← so far, so good. then... 6x =

How do you determine whether the function f(x)=x^4sin2x is odd, even or neither

You plug in (-x) and see whether the resulting expression is the negative of f(x), the same as f(x), or neither. If its the negative of f(x), then f(x) is odd. If its the same as f(x), then f(x) is e

Help me Find the standard form of the equation of the specified ellipse

HELP! Find the standard form of the equation of the specified ellipse. 7. Center: (0,0) Foci: ( 0, plus and negative 2 square root of15) , Vertices: (0, plus and negative 8)-Since the vertices are on

Find the standard form of the equation of the specified ellipse.

Please help me with these math Pre-calc problems!!!!! 1. Find the standard form of the equation of the specified ellipse. Center: (8, 3); Vertex: (15, 3); Minor axis of length 8 2.Find the standard

Explain curl in human language

In my math courseguides (written by my professors), curl and divergence of vector fields are defined very precisely, but due to a lack of examples all is lost in transelation... I was able to figure o

I need help! 10 POINTS!

OK! haha this is easy (just gonna ask yahoo lol ) 100000 divided by 3? haha.thanksthe super awesomeeeee brother of the ownet of this account-33333.333333333333333333...-33333.3333-33333 and a third

Help finding three cube roots of z=125cis48° :[

Hello, Im having trouble with finding the three cube roots of z=125cis48°. Can anyone explain the steps? My test is next week. :[ Any help is appreciated. :]-By applying DeMovires Theorem: (125 cis

Can someone show me how to solve this equation

8(2t+5t) over 7, + 2(3t+t) over 4 = 8(2t+t)+28-[8(2t + 5t) / 7] + [2(3t + t) / 4] = 8(2t + t) + 28 [8(7t) / 7] + [2(4t) / 4] = 8(3t) + 28 [(8)(7)(t) / 7] + [(2)(4)(t) / 4] = 24t + 28 [8t] + [2t] = 24t

15x^4 - 150x^2 + 135 ? set to 0 and solve

I need to set this equation to 0 and solve for x but I dont know how to? please help!-15x^4 - 150x^2 + 135 = 0 Factor out a 15 and divide by 15. 15(x^4 - 10x^2 + 9) = 0 x^4 - 10x^2 + 9 = 0 Rewrite t

Calculus Find Min and Saddle Point

Find the local maximum and minimum values and saddle point(s) of the function. If you have three dimensional graphing software, graph the function with a domain and viewpoint that reveal all the impor

What type of algebra is this

What type of algebra is this? The problem is similar to this. 5(2)^2-3(^2) ----over----- 5^2-8-What type of math class?: Probably Algebra 1, maybe the beginning of Algebra 2. It would fall under a c