Mathematics

Please help with this integral

Integral 1/((x^2)-8x+17) dx upper limit: Infinity lower limit:4-The indefinite integral is arctan(-4 + x) + C since the function is 1 / [(x-4)² + 1] ... and ∫ 1 / (X² +1) dX = arctan(X) +C The val

Evaluation of this math problem? ->

I need help evaluating this problem. h(x)= 0.4x^2-1.2x+7.5for x=0 and x=3 Person to answer gets Best ANswer... thank you :D-since you are given two values for x, all you have to do is plug them into

How do I prepare for Algebra 1 and Geometry end of course tests

Im a freshman and I skpipped algebra 1 and geometry because it was very easy. It turns out that the graduates of 2014 that are in algebra 2 have to take these tests so I dont know what they are learni

Trig, fundamental identities

(1-sin^2Θ)( 1 +tan^2Θ) Prove the following identities 1 -cosΘ --------------=sin/1+cos sinΘ 1 +cosx ----------------=sinx/1-cosx sinx-For the first one (Im using x instead of theta for simplicit

Please help show all steps and work

Mary purchased a package of 15 different plants, but she only needed 10 plants for planting.In how many ways can she select the 10 plants from the package to be planted?-Solution: Number of ways to pl

How to find the equation of the line passing through the points (-2/3,1)and (-2,1/2) and how to....

write the equation in point-slope form, slope-intercept form, and standard form?---- The slope of the line will be (-2 - (-2/3)) / ((1/2) - 1) = 8/3. Point-slope form using (-2,1/2) as the point:y -

How to use the intermediate value theorem to show that the polynomial function has zero in the given interval

f(x)=9x^3+2x^2-4x+7; [-2,-1] Value of f(-2) f(-2)= Value of f(-1) f(-1)= Does f have a zero in the given interval?-One of the applications of the intermediate value theorem allows you to determine

How do you solve (x-0.2)^2=0.64

Please show me how to solve this, if you can step by step thanks-(x-0.2)^2=0.64x-0.2=±√0.64x-0.2=.8x=1x-0.2=-0.8x=-0.6-(x-0.2)^2=0.64 x^2 - 0.4x + 0.04 = 0.64 x^2 - 0.4x - 0.6 = 0 quadratic equation [

What is 5% of 150? Simple math question

Yes, I know this is a simple question, but another member and I apparently disagree on what the answer is. I wont say what our answers are so I wont sway the answers, but I would appreciate any answer

88! , tricky question ... Help

Can anyone help me please if we write 88! in base 8, how many zeros will be in the end of the number ?-I love these math-team type questions!First, you need to recognise what a zero means at the end o

How do you differentiate y=arccos(1-2x^2) with respect to x, and simplifying the answers

let 1 - 2x^2 = t -4x = dt/dx y = arccos(1 - 2x^2) => y = arccos(t) dy/dx = -1/√(1 - t^2)* dt/dx substitute t = 1 - 2x^2 and dt/dx = -4x dy/dx =4x/√[1 - (1 - 2x^2)^2 ] = 4x /√(1 - 1 - 4x^4 + 4x^

Find the critical numbers of the function on the interval 0 ≤ θ < 2π. f(θ) = 2cos(θ) + sin2(θ)

need explanation thanks!-f(θ) = 2cos(θ) + sin2(θ) f (θ) = -2sin(θ) + 2cos(2θ) = 0 => sin(θ)= cos(2θ) => sin(θ)= 1 - 2sin^2(θ) =>2sin^2(θ) + sin(θ)- 1= 0 => (2sin(θ) - 1)(sin (θ) + 1) = 0 sin(θ)=

Can you please show your work and explain this math

1: x^2 + 3x - 18 = 0 a. Solve by factoring. b. Solve using the quadratic formula. 2: x^2 + 4x - 21 = 0 a. Solve by factoring. b. Solve using the quadratic formula. 3: x^2 + 2x - 15 = 0 a. Solve

Trigonometry please help

sin150/ cos300 - tan300/cos330 sin300/sin240 - tan150/240-sin 150/cos 300 - tan 300/cos 330 =sin (180-30)/cos(360-60) -tan(360-60)/cos (360-30)=sin 30/cos 60 - (-tan 30)/cos 30 =0.5/0.5 + 1.73205/ 0.

Match the expression with its value

please help me with this matching. log (27)1 : does not exist: Ln (27)2 : 2.431: Antilog 3.2963 : 20.086: Ln (-e)24 : 0.431: Ln -e25 : 1977: Log (2.7)6 : 2.000: Ln (2.7)7 : 0.993: AntiLn(3)8 : 1.431