Mathematics

10 POINTS! Please calculate my grades for me? (not a lot)

Quizzes are worth 28% in the class. here are my quiz scores: QUIZ ONE: 70% QUIZ TWO: 90% QUIZ THREE: 90% QUIZ FOUR: 80% QUIZ FIVE: 60% QUIZ SIX: 90% QUIZ SEVEN: 70% QUIZ EIGHT: 80% QUIZ NINE: 90% QU

Help with precalculus

Solve the equation on the interval 0 1) 2cos^(2)x - 3cosx + 1 = 0a) 0, pi/3, 2pi/3b) pi/3, pi/2, 5pi/3c) 0, pi/6, 11pi/6d) 0, pi/3, 5pi/3 2) sin^(2)x = 5(cosx + 1)a) 0b) 3pi/2c) pid) no solution 3

Write the answer in a system of linear equations

WIth 2 variables, please! And let statements. A mother is 10 times as old as her daughter; in 24 years from now, she will be twice as old as her daughter. Find their present ages.-Let m be the mother

How do I factor " 6X^4 + 4X^2 - 2" ???? I know it's possible, but don't know how!

Please! Have mercy....Help me out, people!-to begin with, substitute x^2=t 6t^2+4t-2 2(3t^2+2t-1) 2(3t^2+3t-t-1) 2(3t(t+1)-1(t+1)) 2(3t-1)(t+1) reverse substitute t=x^2 2(3x^2-1)(x^2+1) 2((sqrt3)x-

Find the domain of the function f(x) = 5/(x-9)

Er, this was on the review and I dont know what the deuce this means or how to go about finding it. Help?-Evil things that can happen that can ruin the domain of a function: A)Denominator equals zer

Ellipse Question Problem

Easy two-part question. I just want to be sure I have the correct workthrough/answer. Plese tell me why you selected what you selected for the center/vertex numbers and the base solutions that you use

Surface area calculus question

a close cylindrical can is to hold 250pi cm^3 of liquid . What dimensions will minimize amount of material needed to produce can? please show with steps. Many thanks in advance!!-V = Πr^2 h => Πr^2

Algebraic Fractions & Indices Questions!

I have the answer sheet to these questions, but need to know how to work them out as I have a test. Key: X= times x= the letter x /= divide //= over(fraction), divide 1) 2 // 1- xX4 // 1 + x 2) 2 //

Geometry and algebra review questions

This is for a test in which I --CANT-- use a calculator. 20. A recipe calls for an 8 by 8 square cake pan. With this size cake pan, the cake would be 2 inches thick. If all you have is a 10 by 10 squ

Slope equation Help.

1. What is the equation in the form of y=mx+ b of the line (0,2) , (1,7). 2. What is the equation in the form of y=mx+ b of the line (0,3) , (5,-3).-m is the slope & m = difference in ys/difference i

4 questions help me?? please

5/8(p - 4) = 2 1/2(x - 1) = 1/2 Six friends hire a raft and guide to go white-water rafting in Colorado. Each person also buys a souvenir photo of the trip for $25.75. The total each person pays is

Abstract Algebra Question SPLITTING FIELDS

These are very basic questions but I need a little help and clarity getting started. Find the splitting field for the following over GF(3) a.) x^4+2 b.) x^4-2 For a.) I figured x^4+2=x^4-1 in GF(3)

Group theory permutation question

in S6: (1 3)(2 4 5)*(2 3 5) = (1 3 2)(5 4) can anyone thoroughly explain how you get this answer? because i dont see it whatsoever!-First forget about the *, theyre all multiplications. (EDIT: actua

Hyperbola asymptote question

Find the asymptotes of the following hyperbola: ((x-1)^2 / 4) - ((y+2)^2 / 1) = 1 In solving this problem, could you please show the work so that I can understand how it is done? Thanks.-For a horizo

Grade 12 math: vector equation of a plane

Find the vector equation of the plane containing the point A(1, -2, 7) and the z-axis. Answer: r = (1, -2, 7) + s(0, 0, 1) + t(1, -2, 6) i dont get which direction vectors you use... Im getting conf