Mathematics

Algebra 1 math question

175 is the ___th term of 15, 20, 25,30... and is solved by the equation 175=15+(n-1)5. When I learned this there was something simple I used to do to solve for n and it was super easy. Now I cant find

What is the answer when you multiply 4e^-2x * e^-2x

This has confused me and i would be very grateful if someone could please answer it. Thanks.-4e^-4x First put aside the 4. e^-2x*e^-2x.Remember when you multiply, the powers get added together to giv

Help finding the domain

Find the domains of (FoG)(x) and (GoF)(x) f(x) = x^2 - 7; g(x) = 1/(x+6) Can someone show me all the steps to solving this?-(FoG)(x) = g(x)^2 - 7 = [1/(x+6)]^2 + 7 Domain: x not = 6 (GoF)(x) = 1/(f

A shop sells compact disks for $18.00 per piece. If each disk cost $10.00 to the shop owner how much profit

percent does the shop owner earn?-The margin on each disk is 18.00 - 10.00 = $8.00 => 8/10 = 80% margin But that is not the same as profit since it doesnt consider all the costs of the sale.-Profit =

OMG..like wow! easy 10 points ele. math problem?? :)

Gina jogs every morning. On school days she is able to run for 45 minutes and on the weekend she runs for an hour. She is therefore able to jog between 2 and 3 miles every school day and between 4 and

Set Notation (GCSE Standard)

Hi, I need help with a set notation question, bear in mind I am doing GCSE, and if possible could you explain to me why, Thanks. P and Q are two sets n(P) = 9 and n(Q) = 5 Find the value of n(P u Q

The numbers 1 - 9 are written on cards and placed in a bag. Find the probability of choosing a multiple of....

The numbers 1 - 9 are written on cards and placed in a bag. Find the probability of choosing a multiple of 3 or an even number. How do I find it?-In this case the multiples of 3 are 3,6 and 9 Probabi

Math question ...most likely easy

Sarahcan speak 76in a second .how many words can Sarah speak in 2011? (the year) so i hatemultiplicationso help thanks !!!-My guess is that its asking how many words can Sarah speak in a year. There

Line integral F(x,y)=yi +x^2j of the line segment from (0,0) to (1,0) and from (1,0) to (1,2).

I am not sure should i use Greens Theorem or else? Thanks.-No need for Greens Theorem (that is used when you are comparing an integral over a surface to the integral on its boundary). This is just a s

Help with RADICALS please

im stuck on these last few problems...ive already done a bunch of other problems similar to itt. mathematicians please help!! 1. √x^9 (a) x^4 √x (b) 2x√x (c) 3x√2x 2. ^3√54x^11 (a) 2x^2√2x^2 (b) 5^3

Brett took a loan of $35,000 at a rate of 6%. after 3 years, what is the interest rate he had to pay

if this is a simple interest problem, and you meant to ask What is the amount of interest he had to pay? I = Prt I = 35000 * .06 * 3 I = $6,300-Brett would be paying $2100 for the first year ($175),

Nneed help with math !!!!!!!!!!!!!!!!!!!!

Darien has raw data that shows how many hot sandwiches, cold sandwiches, wraps, and salads he sold in his sandwich shop in one day. He wants to see how the portion for each type of meal contributed to

I need help with vectors, how to solve

Given the indepepndant vectors: i, j, k Write expression for: a) a vector with magnitude i, j plane and 30 degrees from i-The phrase a vector with magnitude i, j plane doesnt make any sense. Magnitud

Linear algebra Subspace help Please

This is the problem: http://s2.postimage.org/ml6ncq4gy/smallh… Any help would be great. Thank you so much-Let A_1,...,A_n represent the columns of A, each of which are in R^m.Clearly col A, which is

Help me PLEASE with this maths question???? 10 POINTS FOR BEST ANSWER!!

Here are the formulae to work out the thinking distance and the braking distance for a car travelling at V miles per hour. Thinking distance = V feet Braking distance = Vsquared divided by 20 feet A