Mathematics

Standard Maximization problem

Company sells batteries at following prices: 50-pack for $10.00, 100-pack for $18.00, 600-pack for $96.00. An owner of an electronics store wants to buy at most 1000 batteries and spend at most $175.

Please help.. how to be good at math

School is starting in 3 more days.. I cant afford to fail math again as this is my senior year and dont want summer school math, i just wanna finish quick.. now here is my problem... math is my WORST

How to solve absolute value inequality 11/72 = |(x)/(9) - (3x)/(8) ?|

How to solve absolute value inequality 11/72 = |(x)/(9) - (3x)/(8) ?|-11/72 = |(x/9)-(3x)/8| Your teacher made the question easy by adding the denominator of 72... Lets first look at the right hand s

Simplifying expressions mathematics

Simplify the expression (u+v)*(u-v). HINT: Use cross product properties.-conjugates:u^2 - v^2 The full foil is: u(u-v)+v(u-v) u^2-uv+uv-v^2 u^2-v^2

SIGNIFICANT FIGURES HELP

My homework says Calculate and record the answer to the appropriate number if significant figures. The first problem is 16.8892 + 3.56 So would the answer be 20.4492? I just added them-I think it wo

Algebra mixture word problem

A pharmacist wishes to mix a solution that is 6% alcohol. She has on hand 90ml of 4% solution and wishes to add some 8% solution to obtain the desired 6%. How much 8% solution should she add? This is

Answers to precalculus math questions

1.) Factor the trinomial.4(a + b)^2 + 7(a + b) − 2 2.) Factor the polynomial.x^2 + 8x + 16 - 25y^2 3.) Find all values of b for which the trinomial can be factored.x^2 + bx + 135 4.) Completely fac

Linear Algebra: Find the scalars of a, b and c so that...

Find scalars a , b , and c so that a (2, 3, -1) + b(1,0,4) +c (-3,1,2) = (7,2,5) The answer is a =1 b = 2 and c= -1 , but Im having trouble getting answer. Ive been trying to use linear system of equ

How do you solve: If (4a²)³/2a to the power of k = 32a² what is k

Please help! Thanks :P-part one is 64a^6/?do you mean (2a)? = 32a^5[you seem to, ] now, when do (32a^5)^k ... k would be 2/5 so that a^( 5 * (2/5) = a^2 BUT32^(2/5) does not equal 32 ( is = 4 ) ...

[1/(x+h) - 1/x] / h =

Combine the terms in the numerator (1 / (x + h) - 1 / x) => (x / (x * (x + h))-(x + h) / (x * (x + h))) => (x - x - h) / (x * (x + h)) => (-h) / (x * (x + h)) Divide that all by h -h / (x * h * (x

Maths help plzzzzzzzzzzzzzzzzzzz?

the mean weight of 100 persons is 56 kg. The mean of weight of ales being 58 kg and of females is 48 kg.then find the no. of males?-m = number of males f = number of females total weight / 100 = 56 t

Is it possible to have radius of convergence 1/|x|

We have sum (n+1)*a_n*x^n, n from 0 to infinity, I need to find the radius of convergence. Using lim(n-> infinity) |a_n/a_(n+1)|=1/|x|, this means that it is convergent from (-inf, -1)and (1, + inf).

How to do this Calculus 3 Question

DESCRIBE THE SOLID. x^2+y^2+z^2>-4x + 6y -8z -13 Also can you explain how to do this for similar problems maybe -x^2+y^2+z^2+ 4x - 6y + 8z + 13 = (x+2)^2 + (y-3)^2 + (z+4)^2 - 16 > 0 Therefore it is

How many units must be sold per day to break even

If the daily profit formula for a certain product is P=7q -5600,where P is the profit in peso and q is the number sold per day?-7*q - 5600 = 0 q = 5600/7 q = 800units/day must be sold to break even!

If f(x)=5-2x and g(x)=x^2+2

Find a: (fog)(x) Find b: (gof)(x)-(fog)(x) = f(x^2+2) = 5-2(x^2+2) = 5 - 2x^2 -4 = 1 - 2x^2 (gof)(x) = g(5-2x) = (5-2x)^2+2 = 25- 20x + 4x^2 +2 = 4x^2 - 20x +27 Note:The guy above me Is dead wrong