Alex M.

y = 7x − x2,   y = 10;  about the line x = 2

I continually get these questions on my homework, but we haven't gone over them. My teacher tells me we can use a calculator. However, I would like to be able to do these problems by hand. Here's... more

Emma is designing a rectangular garden and wants to create a walkway around it. The length of the garden is given by the expression L(x) = 3x2 + 2x + 1 and the width is given by W(x) = 2x2 — x +... more

x=3y^2, x=3; about x=3

Two small metallic spheres, each of mass m = 0.200 g, are suspended pendulums by light strings of length (L) as shown in figure below. The spheres are given the same electric charge of 7.2 nC, and... more



y = 5 cos x,  y = 5 − 5 cos x from x = 0 to x = 𝜋

y=e^x, y=x^2-1, x=-1,x=1I have worked this out and i got e-1/e-4/3 and it says im wrong can someone help and understand what i'm doing wrong. i use the formula integral from -1 to 1 (top - bottom)

If x ≥ 0, find the volume of the solid obtained by rotating the region enclosed by the graphs about the line y = —5.у = 90 - х. y = x2, x= 0(Use symbolic notation and fractions where needed.).

equivalent fractions

The Russian letters 'ш' and 'щ' may sound similar to English speakers, but they are distinct phonemes in Russian. This question explains the difference and offers practical tips for mastering their... more

Describe how you would obtain an equation in one variable to solve the system by substitution.\(x+4y=30\)\(x=2y\)