Mathematics

What is (i times i) when solving negative radical numbers

i=√-1 therefore: i times i (√-1)(√-1) -1 Answer: -1-i^2=-1

Question about x and y intercepts? 10 points for help!

So my question is: Find the x- and y-intercepts of the graph of the equation. x = y^2 − 3 x-intercept(s) (x, y) = y-intercept(s) (x, y) = Im doing this on the computer, and I have for the x int = (

What is the limit of...

Im having difficulty with the algebra/trig portion of this Calculus problem, is it possible to simply it any further? I cant use a calculator or graph to determine the limit, I have to do it with alge

6.0x10^-2sec - 3.8x 10^-3sec

Please help me solve this problem. I thought I had it but it the damn negatives exponents that got me confused.-6.0x10^(-2) - 3.8x10^(-3) 0.06 - 0.0038 0.0562 5.62x10^(-2)

Difference between a circle with a radius of .5 and a diameter of .55

Working in CAD and I feel like Ive went retarded.-radius .5 has a radius of .5, diameter of 1, and area of 0.25(pi) diameter .55 has a radius of 0.275, diameter of 0.55, and area of 0.275^2(pi) there

What is -4(1-2v)+-52

please help! solve the equation..?--4(1-2v)+-52 Multiply -4 by both 1 and by -2v -4+8v+-52 -4-52+8v -56+8v The answer is -56+8v--4(1-2V)+-52=-4+8V-52 Note: -4*1=-4-4*-2V= 8V

Using elimination to solve each system of equations

How to write an equation out of this : The sum of two numbers is 24.Five times the first number minus the second number is 12.What are the two numbers ?-let the two numbers be:x and y x + y = 24 5x

Use Logarithims To Solve Compounded Interest Problem

1. Find the interest rate needed for an investment of $3000 to double in 5 yr if interest is compounded continuously. (Round your answer to two decimal places.) 2. How long will it take an investmen

Calculus optimization scenario

A metal box company is asked to produce cylindrical metal tins, each of volume 535 cm^3. The base and top of each tin have to be thicker than the material used for the wall. This material costs twice

Find Minimum Revenue

Maxwell started a home theater business in 2005. The revenue of his company for that year was $290,000. The revenue grew by 21% in 2006 and by 31% in 2007. Maxwell projected that the revenue growth fo

Two fifths of a number equals -24. Find the number

How do I set this equation up and solve it??? please list all steps thanks-So x will = the number you want to know Equation is 2/5x = -24 multiply by 5 2x = - 120 Divide by 2 X = - 60-well, lets cal

Find The Effective Rate

Carlos invested $3,000 in a money market mutual fund that pays interest on a daily basis. The balance in his account at the end of 8 mo (245 days) was $3,130.62. Find the effective rate at which Carlo

I really need some help with this probability and statistics question!

Marketing estimates that a new instrument for the analysis of soil samples will be very successful, moderately successful, or unsuccessful, with probabilities 0.3, 0.6, and 0.1, respectively. The year

Algebra 2 (Linear Programming) Help!

A bicycle builder makes two models. The basic model requires 2 hours of frame construction, 4 hours of assembly, and 1 hour of finishing. The deluxe model requires 3 hours of frame construction, 3 hou

Please solve : ∫(ax+b)^1/2 dx

LetI = ∫(ax+b)^1/2 dx say ax+b = t ,again dt/dx= d/dx(ax+b) = d/dx(ax)+d/dx(b) = a => dt=adx....(1) now,I = ∫(ax+b)^1/2 dx = ∫(t)^1/2dt/a [from (1)] =1/a ∫t^(1/2)= 1/a { t^(3/2)}/(3/2)+C = 2/3a.t^3/