hayley

question: if y is proportional to x, and that y=6 when x=12, (A)express y in terms of x, (B)and find to value of x when y=12. answer: (A) x=y/3 (B) x=4 is what i did correct? i would appreciate your help!

17 years ago

question: given that y is inversely proportional to (x-1), A) express y in terms of x and a constant k b) give that y=5 when x=3, find x when y=25 answer: A)y=-k(x-1) y=-kx+k B)y=5, x=3, k(constant)=3x5 k=15 25=-15x+15 10=-15x x=-10/15 is this correct? i'...

17 years ago

i'm not sure how this question works the number of hours (h) taken to paint a picture is inversely proportional to th number of pupils (p) painting it. it takes 4 pupils 3 hours to finish painting it assuming all pupils work at the same rate. a) find an e...

17 years ago

i need to know what are some problems and successes in the conserving of the kalimantan rainforest. i tried to find websites regarding this topic, but i couldn't find any with information. i would really appreaciate if anyone would be able to give me a fe...

17 years ago

i'm really not sure how to do this question. (3x+2k)^3+(4x-7)^2 has a remainder of 33 when divided by x-3. find k. i tried to expand the expression, but i don't get a polynomial, so how do i apply the remainder theorem? i would really appreciate it if any...

17 years ago

How do you write in words the following problem? 8,042,176

16 years ago

use the bus shelter method to work out 1/8 as a decimal

14 years ago

How do i calculate the concentration of H2O2 after 150 mL of distilled water is added to 30 mL of 1.0 M of H2O2?

13 years ago

A uniform plank of lent light 5m and weight 225N Rests horizontally on two supports with 1.1m of the plank hanging over the right support. To what distance,X, can a person weighing 450 walk On the overhanging part of the plank before it just begins to tip...

13 years ago

We have two carts moving towards each other at different speeds andstick together after colliding. Use the information to calculate the velocity of the two carts after the collision. Remember that the carts are moving in opposite directions before the col...

13 years ago

I know I said I didn't know how to start my last question and them figured it out on my own but this one I have tried to work out and really can't get. We have two carts that have magnets to keep them from touching. One cart is initially at rest and we pu...

13 years ago

I have tried to work this one out and really can't get it. We have two carts that have magnets to keep them from touching. One cart is initially at rest and we push the second cart towards it. Because the two carts will not actually touch, the collision i...

13 years ago

A string is wrapped around a pulley of radius .20m and momentum of inertia .40 kg•m^2. The string is pulled with a force of 28 N. what is the magnitude of the resulting angular acceleration? Can someone please go through the steps or at least guide me thr...

13 years ago

A hollow sphere of radius 25 cm is rotating at 13 rad/ sec about an axis that passes through its center. The mass of the sphere is 3.8 kg. assuming a constant net torque is applied to the sphere, how much work is required to bring the sphere to a stop?

13 years ago

So I've already found/ was given the radius, hanging mass, and acceleration for three objects but I need to find the moment of inertia using all those three. What equation do I use or how do I incorporate all of them to find the moment of inertia?

13 years ago

Two cars have identical horns, each emitting a frequency of f= 395 hz. One of the cars is moving with a speed of 12 m/s toward a bystander waiting at a corner, and the other car is parked. The speed of sound is 343 m/s. what is the beat frequency heard by...

13 years ago

Stuck on this because I haven't done chemistry in a while. Can someone guide me through it or help me out? Balance the reduction-oxidation chemical equation in base: MnO4- + HSO3- -> MnO2 + SO4^ 2-

12 years ago

Calculate Kp at 298 K and 490 K for the reaction NO(g) + 1/2 O2(g) = NO2(g) assuming that Delta H(g) is constant over the interval 298 K - 600 K. Do you expect Kp to increase or decrease as the temperature is increased to 600 K?

12 years ago

We completed a lab and the conclusion write up asks us to describe the purity of the product. What are some things that determine the purity of the product?

12 years ago

a student burns a peanut in a calorimeter. she places 10 ml of water in a test tube. she weighs a peanut before and after burning it. It weighs 3 grams before and 1 gram after burning. She determines that the temperature was at 20 degrees C before and 70...

12 years ago

If a compressive force of 3.2×104N is exerted on the end of a 16cm long bone of cross-sectional area 4.4cm2 , by how much does it shorten? Use Ebone=1.5×1010N/m2, tensile strength of bone = 1.3×108N/m2.

11 years ago

a balloon filled with helium gas occupies 2.50 L at 25C and 1.00 atm. When released, it rises to an altitude where the temperature is 20C and the pressure is only 0.30 atm. Calculate the new volume of the balloon.

10 years ago

what issues shaped society from the Spanish armada? queen Elizabeth I speech? any connections?

8 years ago

Please explain, in English, how to use Spanish Possessive Adjectives. What are the possessive adjectives in Spanish? What is the difference between English and Spanish possessive adjectives? Please provide several examples in Spanish to illustrate your un...

6 years ago

You conduct an experiment where you use a single battery with a charge capacity of 900 mAh to precipitate an unknown metal from a salt solution that was leaking from an old battery. You use a vast excess of the salt, so the amount of metal condensed is li...

4 years ago

Reproductive strategy and how the organism ensures that it can have offspring

4 years ago

yes

17 years ago

thanks for all the help!

17 years ago

lorco tyssme

16 years ago

C) Water may evaporate rapidly

15 years ago

Actually I think I solved this one. I set P= M1V1-M2V2 and then used the equation Pfinal = (M1+M2)•V final and then solved. Is that right?

13 years ago

Sorry the unknowns are V1'= ? V2'= ? P1= ? P1'=? % difference =? KE1'= ? KE2' = ? % difference = ?

13 years ago

Yea I do know about V2. And thanks so much, I really appreciate it!

13 years ago

Sorry it posted twice on accident

13 years ago

Just to comment, I'm not trying to hw dump like the person underneath me. If someone can help me get started I can usually finish

13 years ago

Sorry for the typos. It should say, "of length"

13 years ago

Why does it have to be zero?

13 years ago

Should the 1.4 that you used be 1.1?

13 years ago

Add the accel+radius+ mass? I was a little unclear I need the moment of inertia for each individual object. Does what you said still apply?

13 years ago

how many solutions would -1.5x=2.5y=0 5x - 10y=6=0 have?

12 years ago

4 is actually b

10 years ago

how the Spanish armada shaped society

8 years ago

Please!! I really need help and I don't have much time, I have watched videos, read the text, asked my teacher for help, and researched it. This is my last hope! :(((

6 years ago

please?

6 years ago

its fine i guess, thanks anyway

6 years ago

Moth is 100% thx

2 years ago