Mathematics

How do you factorise 4x^2 - x +18

Anyone?-are you sure you dont mean 4x^2-x-18? because the equation you gave has no solution if it equals to 0, anyways, if its 4x^2-x-18, then its (4x-9)(x+2). hope this helps-4x^2 - x +18 (4x- 9 )(x

Is 17.5 ml equivalent to a half ounce or an ounce

17.5 ml is roughly one half of an ounce because there are 29.5735296875 ml in one fluid ounce. So, 17.5/29.573529 is 0.5917453947807501 ounces, so about half an ounce.-0.5917453947807501 oz So a lit

Permutations Help!!! PLS.pls.

In how many ways the letters of the word SUCCESSFUL arranged? In how many of them Ss will come together Ss will not come together S&U will come together-1) answer- 151200 10 alphabets so 10! for that,

Prove that ∫ sin(i*x)/i dx = cosh(x) + C

Hello, sin(ix) / i = -i.sin(ix)= sinh(x) So: ∫ sin(i*x)/i dx = ∫ sinh(x).dx = cosh(x) + C Logically, Dragon.Jade :-)

How come e^(iπ) is equal to -1

Very complex, isnt it?-Eulers identity, e^(i pi) +1=0-e^(iπ)=cosπ + i sinπ = -1 + 0 = -1-very punny

Proving equations (trig)

Again I just need some help with the last few questions on a maths assignment in high school. I simply need to prove some equations using trig identities. Here are the ones I have had trouble with: t

How to solve a complete quadratic equation in three ways

can you solve me this complete quadratic equation using by factoring and by completing the square in this problem? 3x^2-2x-5=0-Heres how to solve it by factoring: 3x² - 2x - 5 = 0 (3x - 5)(x + 1) = 0

Math Problem help!!!

A baker was mixing light and regular butter together. The light butter contained 30% fat and the regular butter contained 70% fat. How much light butter would be required to end up with 50 pounds of a

Please tell me what is radical 27a^5b / radical 5a^6 b^5

Please tell me what is radical 27a^5b / radical 5a^6 b^5 ?-John, what do you mean by radical? Sq rt, cube rt, fourth root,.... all are radicals only.

Solving Equations by Substitution Method

please help me out here, I know the answer but I dont know what the solution is D: 1) xy=15x^2+2y^2=59(the answer here is 3 and 5 but I dont know the solution) 2) a^2+b^2=41a-b=1-1/ x=15/y ---> (1

If 8000 dollars is invested in a bank account at an interest rate of 9 per cent per year, find the amount in

the bank after 14 years if interest is compounded annually Find the amount in the bank after 14 years if interest is compounded quaterly Find the amount in the bank after 14 years if interest is com

If a quadratic equation has equal roots, then shouldn't the answer you get be the same numbers

I think I worded the question a little bit weird lol, what I mean is, for example m^2-8m+12=0 the answer to this equation is m=6 or m=2, correct? which obviously arent the same number so they must hav

Do you know how to use Wolfram Alpha for differentiation problems

Im looking to use Wolfram Alpha to solve problems like the following: Differentiate for y (find dy/dx) x^2 + 2xy = 3y^2-Type dy/dx(x^2 + 2*x*y = 3*y^2), click =

Cartesian equation help ~

For the following parametric equations, eliminate the parameter to give Cartesian equation in x and y. x = a sec t , y = b tan t ______________________________________… My working so far... x = a se

What is the log4sqrt16384

log4sqrt16384 log4*128 77.06-Not sure if you typed your problem right... if it is, log(4*sqrt16384) = log 4*128 = log512 = 2.7 or it is (log4) *sqrt16384 = 0.6 * 128 = 77.06-log4sqrt16384 log4(12