# jul

Newest questions and responses by jul
1. ## Pre-calculus

A square of size x inches is cut out of each corner of an 8in by 12in piece of cardboard, and the sides are folded up to form an open-topped box. Determine the dimensions of the cut-out squares that will produce the box of maximum volume.

2. ## Math

If there are 6 tricycle wheels and the ratio of tricycles to the tricycle wheels is 1:3, how many tricycles are there?

3. ## Math

Joe can type 11 words in 8 secs. at this rate, how many words can he type in two minutes ?

4. ## Math

a ribbon is 40 inches long. we want to cut the ribbon into pieces, each pieces will be 2/3 of an inch. how many pieces will we have ?

5. ## finance

Calculating break-even. Jasmine Gonzales, administrative director of Small Imaging Center, has been asked by the practice members to see if it is feasible to add more staff to support the practice’s mammography service, which currently has 2 analogue

6. ## Physics

Two lenses are in contact. One of the lenses has a focal length of +10.0cm when used alone. When the two are in combination, an object 20cm away from the lenses forms a real image 40cm away from the lenses. What is the focal length? I am not sure how to

7. ## calculus

suppose that f(x) = x^3 x1 is differentiable at x=1 then a=?, b=?

8. ## math

prove the inequality sin x + tan x > 2x for x ¸ (0, pi/2) i don't know what i must do with this equation, can someone explain this to me step by step? >.

9. ## physics

A 248-kg crate rests on a surface that is inclined above the horizontal at an angle of 19.5°. A horizontal force (magnitude = 537 N and parallel to the ground, not the incline) is required to start the crate moving down the incline. What is the

10. ## Calculus

Consider the parametric curve given by the equations x(t)=t^2–14t–4 y(t)=t^2–14t+48 How many units of distance are covered by the point P(t) = (x(t),y(t)) between t=0, and t=11 ?

11. ## ap history

why didn't the british leave after the signing of the treaty of paris

12. ## Biology

Why can sex hormones pass through a cell directly while protein hormones have to attach to the receptor site on a cell membrane?

1. ## Algebra

41.9

posted on October 18, 2017