Mathematics

Help with logarithms

Could I please have some help to solve this logarithm. log₅(2x+1) + log₅(x-1) = 1-Let log be log to base 5 log [ ( 2x + 1 ) ( x - 1 ) ] = 1 2 x ² - x - 1 = 5 2 x ² - x - 6 = 0 ( 2x + 3 ) ( x - 2

URGENT!! Calculate double Integrals

Calculate the double integral of: ((xy^2) / (x^2+1))dA, R={(x,y)| 0 Need to find the value of the integral _____________________ Please show all steps. Thanks for the help in advance!!-∫(x = 0 to

Algebra 2 help/ force

the force applied to lift an object varies with the objects weight. You need to apply 0.625 pounds of force to lift a 26 pound weight. How much force do you need to apply to lift 100 pounds?-its 2.404

Below are 5 number sequences. Which ones are geometric sequences

Check all that apply View problems here: http://i55.tinypic.com/2i6yijr.png-C and D are both geometric sequences

Help about limits at infinity, please!!!

lim[5+(1/x)+(5/x²)] x-> + infinity-lim [5+(1/x)+(5/x²)] = lim 5 + lim 1/x + lim 5/x^2 = 5 + 0 + 0 = 5

Four times a number is 35 less than the product of the same number and -3 what is the number

Four times a number is 35 less than the product of the same number and -3 what is the number?-Lets assume number is x As per given, 4x = -3x + 35 4x + 3x = 35 7x = 35 x = 35/7 = 5-4x -35 = -3x 7x = 35

How do you factor 8x^2+34x+21 over the set of polynomials with integer coefficients

Also the equations: m^2+2m-575 & 6x-4z^2-16z^3-8x^2+34x+21 (4x+3)(2x+7) m^2+2m-575 (m+25)(m-23) 6z-4z^2-16z^3 -2z(8z^2-2z-3) -2z(4z-3)(2z+1)

Solve this trigonometrical problem i am stuck with.......its urgent.

take a triangle ABC such that left vertex is A, right vertex is C and centre top is B. angle A is theta , angle C is alpha, side AB is r. now draw a line from vertex A towards line BC. such that it me

Find all possible rational zeros(according to the Rational-Zero Theorem) of the following functions:

F(x)=X^3-5x^2+7x+8 & f(x)=3x^4-5x^2+4x+4-The possible rational zeros are all of the factors of the constant divided by the factors of the leading coefficient. f(x) = x^3 - 5x^2 + 7x + 8 Factors for 8

Can some body please help me with these trigonometry problems? 1) what is

1) what is the solution set to the equation x=2x radical 2x-3. 2) express in simplest form : 4x+8/x+1 times 2-x/3x-15 divided by x^2-4/2x^2-8x-10 3) when a current, I, flows through a given electrica

How do you write the equation of a line in slope intercept form

when you have an inclination angle and the line that it goes through for example the angle is 45 degrees and the line contains the point (-2,4)-Well the tangent of 45 degrees would be rise over run s

How many cups of 250ml can be filled with 1.5 liters of water

6 cup Becaus 1 litter contain 1000ml So, 1.5 will 1500 1500/250=6-1.5 liters = 1,500 milliliters 1,500 ml / 250 ml/cup = 6 cups-ml = one thousandth of a liter , so 250 into 1,000 = 4 and 250 into 500

What is the first derivative of sin³ (cosec t) with respect to t

My workings as follows: d/dtsin³ (cosec t) =3 sin ²(cosec t)x( -1/sin²txcos t) = 3 cot tcosec tsin ²(cosec t) Is this answer correct? Thanks-y = [ sin ( cosec t ) ] ³ let u = cosec t du/dt = - cos

How to factorise x^2 - x + 16

I have reviewed the book & tried examples, but still find this difficult. I know the factors are 1, 2, 4, 8, & 16 & understand that to find the numbers to put into brackets eludes me. (x) (x) To find

What interest rate will cause $5000 to grow to $5618.00 in 2 years

The formula A=P(1+r)^2 gives the amount A in dollars that P dollars will grow to in 2 years at interest rate r (where r is given as a decimal), using compound interest. What interest rate will cause $