Mathematics

Math - Area Question

If the area of a square is 20.25 inches, how long is each side? Thanks!-area is the square of the sides s^2 = 20.25 take the square root of each side s = 4.50 It is important not to confuse perime

Integer help adding and subtracting

is there an easier way to add or subtract negative and positive numbers and remember it because i get confused like when a negative number minus a positive number it doesnt make SENSE !!!!!!-You shoul

Reduce lowest term ax + bx - 2ay - 2by/ 4xy - 2x^2

i do not understand , please show steps. thanks answer: a + b / 2x-Factor the numerator by grouping and the denominator by factoring out the common factor: ((a + b) (x - 2y)) / (-2x (x - 2y)) Cancel

Simplify rational expressions? Help please

Been working on this a while and I keep having different answers, none of which are correct. Any help is appreciated, especially step-by-step (although I dont expect this and even the solution is grea

Isolating X in a quadratic like equation

can somebody help me isolate X in the following equation: 100^2 = y^2 + x^2 - 2xy(cos 65) all i need is for X to be isolated on oneside of the equal sign. I have realized the the x^2 + 2xy(cos 65)

Concentration problem, please help

http://www.flickr.com/photos/52224975@N0…-mass = volume * concentration / unit volume = 11.72 [ 5280]² ( 48.38)] W (0.312) µg, where W = liters / cu ft ≈ 28.33 liter / cu ft for W

I Need Help With An Algebra Word Problem

The word problem reads, If a student is driving home from college at 40 mph then he is late. However, if he makes the same trip at 50 mph her is 12 minutes early. What is the distance between the coll

Is geometry really hard

Honest answer please ! Im taking it next week.. Soo everyone says they failed it and blablabla. So is it?? Im nervous D:-its one of those concepts that MAKES SENSE once you get the hang of it... there

Need help with a first order differential equation questions

How do i solve the ODEs: a) dy/dx = (sinx)/y b) x*(dy/dx) = y*lnx the answers are a) cuberoot(C - 3*cosx) b) (lnx)^2 = 2*lny + C I dont know how to get these answers, show all steps thanks-Please as

Evaluating Limits with Theta

Evaluate the limit. Give an exact answer. lim Θ -> 0; tan 4(Θ) / 5(Θ) Steps preferred. Thanks in advance.-tan 4θ/5θ = sin 4θ/cos 4θ • 1/5θ = sin 4θ/(4θ) • 1/cos 4θ •4/5 --> 1 • 1 • 4/5 = 4/5

How do I find the maximum height of this function s(t)

The height s of a ball (in feet) thrown with an initial velocity of 80 feet per second from an initial height of 8 feet is given as a function of the time t (in seconds) by s(t) = -12t^2 + 60t + 8 1

Find functions f (x) and g (x) such that f(g(x)) = √(5ln(x))

Find functions f (x) and g (x) such that f(g(x)) = √(5ln(x)) f(x) = g(x) =-f(x) = √x g(x) = 5 ln x-f(x) =√5x g(x) = ln(x)

Find functions f (x) and g (x) such that f(g(x)) = ln(2ln(x))

f(x) = g(x) =-f(x) = ln x g(x) = 2 ln x OR f(x) = ln (2x) g(x) = ln x

How to solve this out

A software company estimates that if it assigns x programmers to work on the project, it can develop a new product in T days, where T = 100-30x+3x^2 How many programmers should the company assign in o

FInd the Line Tangent to the graph y=f(x) through the point P given: f(x)=10^x and P(0,1)

i know that the point is P(a,f(a)) and that the derivative of 10^x is 10^x(ln10).. im not sure if the derivative helps but i could use some help.. Thanks-f(x) = 10^(x) f (x) = 10^(x) * ln(10) f (0)