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this is a multiple choice q and the answer is either 2 4 6 8 please show working out for this question thanks !! :)

find the area bounded by the curve y= sqrt (4-x^2), the x axis and the y-axis in the first quadrant. I found the x intercepts which are +2 and -2 but we only need -2 and 0 because we are finding it in the first quadrant what's the next steps? please show working out!! :)

so when i use the quadratic formula, i get x = -3 and x= 1/2 but when i use the quadratic factorising method, i get the wrong answers! can someone help me please? how do i get the right answer using the quadratic factorising methid ?

please help me with this question! find the area bounded by the curve y= -x^2 +9x-20 and the x-axis thank you :)

find the exact value of f''(2) if f(x)= x (3x-4)^1/2

I'm so confused with inflection and horizontal inflection are they the same thing? what is the best way to see if there is a horizontal inflection. by using the first derivative,with the test of turning points or the second derivative, with the test for concavity?

please help with these questions. show working out please! :) 1. Find the point of intersection of the normals to the parabola x^2 =-12y at the points (4, -1 1/3) and (-2, -1/3) 2. a. Find the equation of the tangent to the parabola x^2 =12y at the point P (6,3). ( the answer is x-y-3=0...

find the length of the diameter of the circle x^2+8x+y^2-12y+3=0 please show all working out!!

find values of A, B and C if 4x^2-3x+7 = (Ax+4)^2 + B(x+4) + C thanks :)

solve 2^(2x-1)-5.2^x +2=0 the dot is multiplication

Find the value of n for which the equation (n+2)x^2 +3x-5=0 has one root triple the other can you please show the working out for the whole question i tried doing it before but it didn't work out thanks

Find the values of P for which x^2-x+3p-2>0 for all x

Find the value of n for which the equation (n+2)x^2 +3x-5=0 has one root triple the other

find values of m such that mx^2 + 3x-4<0 for all x

find values of m such that mx^2 + 3x-4<0 for all x

would someone very lovely answer this questions for me and show the working out? find the exact value of f''(2) if f'(x) = x times by the square root of (3x-4) muchly appreciated! please and thankyou :)

find the second derivative of V=(t+3)(2t-1)^2 please and thankyou :) :)

the curve f(x)= ax^4 - 2x^3 + 7x^2 - x + 5 has a stationary point at x=1. find the value of a

find the stationary points on the curve y=(3x-1)(x-2)^4 please show working out!! thankyou

sketch a function with f'(x)>0 for x<2, f'(2)=0 and f'(x)<0 when x>2 so i know what the sketch looks like as seen from the answers, but i do not know why it's like that. can someone please explain to me how to interpret questions like these? please! i don't understand these types of...