Mathematics

Find the simple interest rate.

Karen took out a 30,000, 90 day loan at an annual interest of 8.5%. Find the simple interest rate due on the loan using the ordinary method.-Since the interest rate is at 8.5% PER YEAR, the total amou

How do I find the center and radius of the circle with the given equation?x^2 + (

How do I find the center and radius of the circle with the given equation? Then, how do I determine the WINDOW values and graph the circle on a graphing calculator? Please help... x^2 + ( y - 2 )^2 =

Help with derivatives of sin

Find an equation of a line that is tangent to y=2sinx and whose slope is a maximum value. Thanks for your help! I greatly appreciate it !-y = 2 sin(x) The slope of the tangent line is y = 2 cos(x)

Help With Algebra Homework

Two questions Im stuck on. Homework problem 1: The graph below shows the price change of an item over several years. Find the rate at which the price is increasing. http://www.flickr.com/photos/62474

What is a vertice? (Mathematics)

I have to classify the names of some polygons, but i get all that. But it says to also Name its vertices. and it doesnt give me an explanation.-A vertices of a polygon is where to lines meet to form a

Help with algebra problem

A certain radioactive isotope is a by-product of some nuclear reactors. Due to an explosion, a nuclear reactor experiences a massive leak of this radioactive isotope. Fortunately, the isotope has a ve

Homework help I know the answer jut don't know how to write the problem

Jack paid $2,280 as interest on a $57,000 loan. What interest rate did he pay to the bank in a year? I know the answer just dont know how to write it out.-A = P(1+r)^n I = A - P = P( (1+r)^n - 1) plu

10 POINTS! can you answer these easy three math questions

1. A craftsperson is able to etch 25 windows per day if they are able to sue the laser etching device and 8 windows a day id the y must etch by hand. If they can use the laser etching device 70% of th

Sec^2(x)*(1-cos^2(x))=tan^2(x)

I need step by step help-1)sec^2x * sin^2x = tan^2x(proof sin^2x+cos^2x=1) 2)1/(cos^2x) * sin^2x = tan^2x (sec^2x = 1/cos^2x) 3)(sin^2x)/(cos^2x)=tan^2x(combine sin^2x and 1/cos^2x) 4)tan^2x=tan^2x(si

Maths problem 10 points for best answer

find the distance between the following points (2,0)and (5,0) i dont know the formula can u please explain how to solve this problem thanks-d = [ (y2-y1)^2 + (x2-x1)^2 ]^1/2 Let (x1,y1) = (2,0) & (x2,

Easy Grade 9 Math question! 10 points best answer

Best answer gets 10 points! 1/2 (x + 1) = 1/3 (x - 1) Show all work please.-This can be written as (x+ 1)/2 = (x – 1)/3. Two fractions equal to each other form a proportion. Simplify a proportion by

Why does this sequence converge to 0

An = [2^(n-1) + 1] / [3^(n-1) + 1] It converges to 0.Why is this?-take out the ones for starters as the limit goes to infinity and sum constants dont effect the function (much) An lim->inf [2^(n-1)/

Can you SOLVE this math equation

4(x-8)^ + x^ = x(x+119) - 47x And the ^ indicates that the power is squared. The answer needs two solutions. THANKS!!-4(x - 8)² + x² = x(x + 119) - 47x We can start off by expand the bracket: x(x +

Help with solving equations kind of confuse

it says Solve and graph the foll wing equations.The grapnel should be one dimensional. If you believe that the equation has no solution,you should skip the grapnel component of the answer . |3x-2|≤9

Can someone help me with derivatives

Find the derivative of the function y = cos(cos(cos(x))).-Chain rule three times in a row! lets take an arbitrary differentiable function f instead of cos ( just because f is easier to type that cos