# Search results

1. ### Implicit Formula

omg thanks so much tiny-tim so i get it 81 squared is 6761 and 61 squared if 3721 but evne so i been trying to write an equation with no luck as its supposed to be in an implicit formula, so is it like Xn squared but then i dunt know what to write
2. ### Implicit Formula

i understand the 3,9,81, as it increase by the square of the previous number part but then it goes does to 65 which i dun understand at all
3. ### Time and work

1/4 + 1/6 is = to 5/12 of the tank filled which is if both of them are filling the tank in one hour so you have to get a further 1/4 and 1/6 of these repectively so 1/4*5/12 and 1/6*5/12 and add them to get the time, maybe you'll get the rite answer... Hope this helps, confusing problem have...
4. ### Probability: coin toss

i think since pravesh would have 1/2 chance of paying for a lunch on one day, you would have to multiply that by 3 and the odds become less for him to pay 3 times in a row therefore you would get 1/8 from 1/2 * 1/2 *1/2. Getting 0.125
5. ### How to write another expression (for n) when given a series sum?

Its not a case of dividing the n-1 by n as it is a ascending arithmetic method as the difference keeps increasing by 2: 1 2 3 3 8 15 8-3 = 5, 15-8 = 7, so the next difference will equal 9 then 11 and so on an so forth, so your equation is essentially using the "box" number, 1 2 3, to get...
6. ### Implicit Formula

Homework Statement I have to find an implicit rule for this pattern, Can Someone please help me? 3, 9, 81, 65, 61, 37,... and so on Homework Equations Im stuck not sure how to approach and therefore get a rule The Attempt at a Solution I tried using the arithmetic and geometric formulas...
7. ### Torque and Equilibrium Lab

what? we ar supposed to use torque and equilibrium not kinematics
8. ### This problem has got me stumped. I need the answer to make an A on a test

the coeffiecient of friction is mu and theta is basically the angle, bottom part of the triangle, and to find use your SohCahToa
9. ### This problem has got me stumped. I need the answer to make an A on a test

i think this is the way to do it: mgh = 1/2mv^2 + Wf mgh = 1/2mv^2 + mu(Fn)cos theta (r) mgh = 1/2mv^2 + mu(mg)cos theta (r) *h can be found by using sin of 10.5 Solve for Vf = ? plug in Vf as Vi 1/2mv^2 = mg(d) , in this case d is the distance you want... and i think you should get the answer
10. ### This problem has got me stumped. I need the answer to make an A on a test

use the conservation of mechanical energy, i think the masses should cancel out
11. ### Torque and Equilibrium Lab

Homework Statement Purpose: Determine the mass of a meter stick without directly measuring it. Possible Materials: Select the appropriate materials you will use. __ Meter Stick __ Thermometer __ Stop watch __ Washers __ Knife edge __ Plastic ruler __ Known Masses...
12. ### Trignometry Rules/properties/common equations?

Lol gotcha...thanks again
13. ### Trignometry Rules/properties/common equations?

Thanks so much...But I'm unsure of what you said about the e-mailing the site admin
14. ### Trignometry Rules/properties/common equations?

Homework Statement What are the other Trignometry Rules/properties/common equations? The Attempt at a Solution cos2 theta + sin2 theta = 1 1 + tan2 theta = sec2 theta 1 + cot2 theta = csc2 theta 2sin theta = 2cos theta sin theta