Mathematics

Help creating a pre algebra word problem!

I need help creating a word problem. Write a word problem that involves at least three operations and the answer should be Ally has -$31.09 in her account.-Ally went to the bank and saw that her bal

Help with this problem

(3√8 - 1/√3 - √18 )²-3√8 = 3 * √4 * √2 = 3 * 2 * √2 = 6√2 1/√3 = √3 / 3 √18 = √9 * √2 = 3√2 6√2 - (√3/3) - 3√2 3√2 - (√3/3) (9√2 - √3) / 3 [(9√2 - √3) / 3]^2 [(9√2 - √3)(9√2 - √3) / (3 * 3)

What is the derivative of the tan(x)

sec(x)^2-This is just not right.You must square the secant, not the angle:)Report Abuse-be careful of parentheses. The derivative of tan x is (Sec x)^2 Good luck!

Help with my Algebra 2 homework

I need help with this Algebra 2 problem for my homework. I do not remember going over this in class so please help! In 1950 the life expectancy of women was 72 years. In 1970 it was 75 years. Let E r

Binomial theorem help needed thks

if in the expansion of (1+x)^m * (1-x)^n, the coefficients of x and x^2 are 3 and -6 respectively, find the value of m. Pls show steps btw m=12-In the binomial expansion, you have the following prope

Vectors question: Is r'(t) technically a tangent (non-unit) vector to r(t)

I know T(t) = r(t) / |r(t)|, but heres my reasoning: Since T(t) = r(t)/|r(t)| describes a vector at any given point t which is tangent to r(t), with a unique scalar |r(t)| at that point, couldnt one

How do you solve 1/2 + 1/7n = 1

the work and answer? my friend and i have an answer but we arent sure if its right, its part of our homework-1/2 + 1/7n = 1 => 1/7n = 1 - 1/2 => 1/7n = 1/2 => n = (1/2)/(1/7) => n = 1/2 x 7 Therefore

Sinx - ncosx = 0, solve for x

Original equation was (nwsinx - n^2wcosx) / (nsinx + cosx)^2 = 0, I worked it to get that ^^ ...but I dont know what to do now. Please help? :P-sin x = n cos x cos x is not zero then sin x = 0 cont

Need help with some math problems 10 points

Im taking geometry and there giving us a review of algebra and i completly forgot how to do these problems. 1.A function is represented by f(x)=2x^2+5. Find f(3) How do i solve this problems step by s

Find the quotient and remainder using synthetic division

x^5 - x^4 + 5x^3 - 5x^2 +1x - 2/ x-1-= (x⁵ - x⁴ + x³ - 5x² + x - 2)/(x - 1) = x⁴ + ([x⁵ - x⁴ + x³ - 5x² + x - 2] - [x⁵ - x⁴])/(x - 1) = x⁴ + (x³ - 5x² + x - 2)/(x - 1) = x⁴ + x² + ([x³ - 5x² + x - 2]

A Descrete math question

could someone please help me with this math problem. A certain Burger Joint advertises that a customer can have his or her hamburger with or without any or all of the following: catsup, mustard, mayo

What is the derivative of the cos(x)

-sin(x)-From lim(h-->0) (cos h cos x - sin h sin x - cos x) / h, rewrite it as lim(h-->0) ((cos h - 1) cos x - sin h sin x) / h = lim(h-->0) cos x * (cos h - 1)/h - sin x * (sin h / h) = cos x * 0 -

Can you solve the following inequality

1-x/x-6 greater than or equal to zero-1≤x

Help evaluating an integral calc

How do I go about evaluating this integral? Please explain to me how... this is quite hard for me to do and itll help me understand better the integral: sin^4*3xcos^3*3x dx sin^4(3x)cos^3(3x)dx = si

Calculus question: Find the area below the curve y=x^5(1-x) and above the x axis

Solving the equation of the curve y = x^5 (1 - x) with that of the x-axis, y = 0 => x = 0 or x = 1 => required rea = ∫ (x=0 to 1) (x^5 - x^6) dx = (1/6)x^6 - (1/7)x^7...(x = 0 to 1) = 1/6 - 1/7 = 1/42