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Posts by molly

Total # Posts: 594

Anatomy and Physiology
If one solution is 1000 x as acidic as another, how many pH units would there be between the two?

Science
What is the volume of 19 grams of flourine gas at stp?

College Physics
A convergent lens forms a real image 2.41 times the size of the object. The distancebetween object and image is 62.6 cm.Find the distance of the focal point fromthe center of the lens.Answer in units of cm

Physics!!! :)
The escape speed of a particular planet with a radius of 7.500e+6 m is 14,500 m/s. What is the mass of the planet?

Algebra-HELP!!!!
When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

algebra
When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

algebra
When Amy drives her car to work, the trip takes 1/2 hour. When she rides the bus, it takes 3/4 hour. The average speed of the bus is 12 mph less than her speed driving. Find the distance she travels to work.

math
The legs of a right triangle are 3 and 4 units long. Find the lengths, to the nearest tenth, of the segments into which the bisector of the right angle divides the hypotenuse. (Hint: Draw a picture of the triangle, label one segment of the hypotenuse "x," and solve. ...

finance
Alicia Cooper makes sure to contribute ten percent of her monthly earnings to her 401(k) plan at work. Her 401(k) plan allows her to invest in several different types of mutual funds. Which suggestion for the obtaining money she needs for investing is she following?

child day care
I think it's A.

Math
If you deposit 1200.00 annually with 5% compounded interest, how many years will it take to get to a million dollars?

chemistry
what is the effects of NH3(aq) and HCl(aq) on the CuSO4 or NiCl2 solution

HELP!!!
Idk

maths
find the perpendicular distance from the corner of the triangle to the opposite side if the side is 25cm long

Math
Tony lines up 5 baseballs. They are as long as his pillow. He adds 15 more balls. How long is the line?

english
what is the analogy for monkey if cardinal is to bird as monkey is to?

pre-calculus
Write the first expression in terms of the second if the terminal point determined by the t is in the given quadrant: sin t, cos t; quadrant 2

algebra
evaluate 15^(2log base15(9))

physics
A car traveling at 91.0 km/h approaches the turnoff for a restaurant 30.0 m ahead. If the driver slams on the brakes with an acceleration of -6.40 m/s^2, what will her stopping distance be?

math
5 rounds up, so 85 would round up to 90.

Probability
Let Y be a Normal RV with mean 7 and standard devi- ation 4. a. Find P (Y = 7). b. Find P (Y < 5). c. Find P (Y ≥ 10). d. Find P (Y < 0). e. Find E[Y].

Probability
Consider an RV X with the following density given parameters α and γ . f (x) = {(1/γ)e^(-(x-α)/γ) if x>α {0 if x ≤ α. a. Find E[X]. b. Find V[X]. c. If α = 4, γ = 2, find P (X > 8). d. Find P (X < α + 3&#...

chemistry
shoot, i wish i could remember the metal. she gave us the entire periodic information. how would i find the solution if I theoretically had the density?

chemistry
There is a ball with a mass of 1000 lbs. It's turned into wire with a diameter of 3.12 x 10^-1 How long is the wire? This is my crazy chemistry teacher's idea of a test...and I don't even think there's a solution. HELP ME

math
emilio can type 60 words in 1 minute marg can type half as many how many total words can emilio and marg type in 3 minutes

math
use the order of operations and the digit 4 four times to write problems that have the following answers 44 and 12

physics
A 30.0 g bullet strikes a 0.595 kg block attached to a fixed horizontal spring whose spring constant is 6.66 103 N/m and sets it into vibration with an amplitude of 21.8 cm. What was the speed of the bullet before impact if the two objects move together after impact? answer ...

physics
When a 69 kg person climbs into a 1000 kg car, the car's springs compress vertically by 2.9 cm. What will be the frequency of vibration when the car hits a bump? Ignore damping. answer should be given in Hz.

Algebra
2/5x^4-23x^2+1/15 x^4+5x^2-5 Simplify each expression.

pre-algebra
If a and b are any real numbers, is the statement a x b = b x a always true? Why or why not?

algebra
If a and b are positive numbers, then is a -b is always??

Pre Cal
Let the line X-2Y=15 and the circle with equation X^2+Y^2=50 intersect at the points A and B. Algebraically find the coordinates of A and B using the information given.

Geography
I need an easy way to remember the followingg states: Montana, Wyoming, Colorado, New Mexico, Arizona, Utah, Idaho, Washington, Oregon, Nevada, and California. I have to know the capital and where it is located on the u.s. map .

Chemistry
How many calories are absorbed when 56.0 g of liquid water at 100C is vaporized to steam at 100C?

MAth
1. John’s loans for his business total $155,000. One of the loans is a SBA loan at 11% interest; the other loan is a Community Business Partner loan whose interest is 6.5% After one year the loans accumulated $12,325 in interest. What was the amount of each loan? I am not...

physics
1. An object traveling at a constant speed of 22m/s begins to experience a force of 15N in the opposite direction of its motion. (Hint given: Start by finding objects acceleration) a. How long will it take for the 8kg object to come to a complete stop once it experiences the ...

Phyics
If a 68kg object is being pulled across the hard floor with a horizontal force of 400N... a. What would the acceleration of the object be if it was on a frictionless floor? b. if there were friction, what would the force of friction be if it was pulled at a constant velocity? ...

boooring chemistry!!:(
Halogens are non-metals and if observed they form ionic bonds with metal because halogens have a high ionization energy to attract the metals. if you don't know what ionization energy is it means the energy need to to remove the electrons from an atom. Halogens also form ...

physics
How do you know that is net vertical force is equal to 0? Also what does Ffriction stand for?

physics
1. There are three forces acting on an object, a 30N force pulling right, a 50N force pushing right, and 30N frictional force pushing left. a. What is the force of gravity on this 15kg object? b. If the object is on the ground what is the normal force acting on the object c. ...

physics
That is just what my homework says but it probably does mean north of west.

physics
1. a force of 30n with a direction of 35 degrees northwest acts on point p. Find: a) the northward component on the force b) the westward component of the force Please show work. Thanks!

Physics
2. Tyler pulls a box full of baby ferrets across the floor by means of a rope that is tied to the box. The rope makes an angle of 41 degrees with the horizontal and tyler pulls on the rope with a force of 60N. a)What is the horizontal component of the force that tyler is ...

Physics
James and Steve have a contest to see who can kick a football further. James kicks the football at an angle up of 57 degrees, and a speed of 75m/s. Steve kicks the ball with a speed of 100m/s, at an angle up of 48 degrees? Who wins the contest? Please show what each variable ...

maths
calculate the surface area of the following prism cuboid; 2cm 6cm 4cm what is the surface area of the cuboid

maths
calculate the surface area of the following prism cuboid; scm 6cm 4cm what is the surface area of the cuboid

maths
a prism has a cross sectional area of 8mm2 and a volume of 224mm3 calculate the length of the prism thank you so much for your help

maths
so the cube number is 3????

maths
3 x 3 x 3 = 27 27 is a cube number

maths
a cube has a volume of 27cm3 what is the length of one side of the cube

geometry
Find the length of segment AG in the figure if the prism is 8 ft by 9 ft by 12 ft.

math urgent!!!!!!!!
you have to isolate the x or the y. So move the 5x to the other side by subtraction,-4y=8-5x, then divide each part by -4, -4y/-4=(8/-4)-(5x/-4). Gives you y=-2+5/4x. Now plug that y into the original equation. 5x-4(-2+5/4x)=8... then once you get x plug that into the original...

English
I want to write a causal argument on how kids get hooked on unhealthy/processed foods (at home-- fast foods and at school-- vending machine and cafeteria hot lunches). I'm not quite sure what exactly to write about throughout a causal argument paper on this claim. What ...

Abstract Algebra
Let ø: G--> G' be a homomorphism from the group G to the group G'. Prove that ø(a)= ø(b) if and only if ab^-1 exists in Ker(ø).

History
The revolt in Hungary (1956), the demonstrations in Czechoslovakia(1968), and the formation of Solidarity in Poland (1980's) are similar in that they

s.s (social studies)
IS THIS RIGHT ? There comes a time in history,when the Americans must break away from england and become a separate nation , equal with other nations like god planned all along.We care about what the rest of the world thinks,therefore we will clarify why we are motivated to ...

s.s (social studies)
i don't get it

s.s (social studies)
can you help me translate the declaration of independence? first passage: When in the course of human events it becomes necessary for one people to dissolve the political bands which have connected them with another, and to assume among the powers of the earth, the separate ...

Chemistry
So basically for the first 3 answers (Part (A)(B)(C)): (A)and(B) - the concentrations would be equal since the mole ratio is equal and Q = K at equilibrium. (C) - the rate of both reactions would be equal also, as Q = k, right? (D)(1) - If the volume is increased at constant ...

Chemistry
PCl5 --> PCl3 + Cl2 (Kp = 630 at 546 K) A system is prepared by placing equimolar amounts of the three gases shown in the equation above in a suitable rigid container held at constant volume. Equilibrium is established at 546 K. (A) When equilibrium is established, how does...

Life orientation
Severally improve the worlds environmental problems,on the other hand,if the current way the worlds environmental problem is bing handled.

Math
Complete the square for this conic section in standard form: x^2+y^2-6x+4y-12=0

science
what kind of heat transfer causes earth's major wind patterns

CALCULUS
hi what is the derivativ of [-18(x^2)]/[(1+2(X^3))^2] ?? thanks!~

Physics
On a cold winter morning, a child sits on a sled resting on smooth ice. When the 9.20 kg sled is pulled with a horizontal force of 40.0 N, it begins to move with an acceleration of 2.50 m/s^2. The 23.0 kg child accelerates too, but with a smaller acceleration than that of the ...

Abstract Algebra
Let A= -{-1}, that is, the set of all real numbers except -1. Define an operation on A by a*b=a+b+ab (usual addition and multiplication in R) a) Show that * is closed on A b) show that * is associative c) Find the identity element for * and verify that it is the identity d) ...

COLLEGE ALGEBRA
Suppose that R is the set of real numbers. Let f: R--> R be defined by f(x)= mx+b, where m and b are real numbers and m is nonzero. Prove that f is a bijection.

Math
Jonathan can type a 20 page document in 40 minutes, Susan can type it in 30 minutes, and Jack can type it in 24 minutes. Working together, how much time will it take them to type the same document?

US History
How did Hitler respond to Germany’s obligations under the Treaty of Versailles when he became Germany’s leader?

Abstract Algebra
Let f:A->B where A and B are nonempty. Prove that f(S1 U S2) = f(S1) U f(S2)

Algebra
The slope formula is Y2-Y1/X2-X1. So it would be 1-2/2+2 which equals -1/4

childcare
OMG u guys aren't helping I'm gonna save all my answers and post them when I'm done

science
what do you want to know?

geometry
If the perimeter of a particular square is 2011 inches, what is the area of the square, in square inches? Express your answer in decimal form to the nearest hundredth.

College Algebra
Al gives 1/2 of his marbles to bev. bev gives 1/3 of these to carl. carl gives 1/4 of these to dani. If dani was given four marbles, how many did al have originally?

algebra
Nicole can jog to work in of an hour. When she rides her bike, it takes her of an hour. If she rides miles per hour faster than she jogs, how far away is her work? NEED HELP FAST

Math
After a recent series of home improvements, four couples were having a dinner party to discuss the additions to their homes. Mike had not recently had a new bathroom. Lorraine had not yet done her kitchen, but perhaps would update it next. Chris, who is married to Renée...

algebra
-13=3(x+2)-10

Chem
I don't understand what h is

Chem
What is the energy (e) of electromagnetic radiation having a frequency of 6.32 x 10^20 s^-1?

adult education
use lattice multiplication to find the prduct of 124 x 56

accounting
please help now!!!!!

accounting
This is the question: "Use page 3 of the journal. Jornalize and post the adjusting entries." Can you tell me how to do that?

science
ive been trying to find a report for 5th grade greenhouse effect science. how can i type it to find it?

English(how is it?)
Ya you do this by eating some bananas, there ya go

Math
period = 2ð/(ð/12) = 24 months amplitude = 4000 vertical displacement = 20 000

Math
The population size, P, of owls (predators) in a certain region can be modelled by the function P(t) = 1000 + 100 sin (3.14t/12), where t represents the time in months. The population size, p, of mice (prey) in the same region is given by p(t) = 20 000 + 4000 cos (3.14t/12). ...

PHYSICS!!!
By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?

PYSCIS!!!!
By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?

Geometry
I saw it after I typed in my response to avery. Thank you very much :)

Geometry
Could you please explain why the answer is no?

Geometry
Is it possible for a triangle to have sides with the following lengths: 5, 9, 15?

college physics
A mass of 1 kg is hanging from a spring with a spring constant of 3 N/m. At a distance of 0.2 m below the equilibrium it has a velocity of 1 m/s in the upward direction. What is the amplitude of the oscillation?

College Chemistry
Calculate the vapor pressure of a solution of 0.39 mol of cholesterol in 5.4 mol of toluene at 32oC. Pure toluene has a vapor pressure of 41 torr at 32oC.

College Chemistry
How much ice can be melted at 0oC by the condensation of 1.0 kg of steam at 100.oC? (ΔHfus of ice = 6.01 kJ/mol; ΔHvap of water = 40.7 kJ/mol)

Math
Four balls are simultaneously picked at random from a jar containing 2 red balls, 2 green balls, and 6 yellow balls. What is the probability that exactly two of the selected balls will be red?

math
To find the amount of the discount, you multiply the price by the percentage out of 100. So, 35x.25=8.75 This is the same as (X/35) x (25/100) So you are getting 8.75 off. And the price you pay is.. 35-8.75 = $26.25

chemistry
What reagent would allow you to distinguish between FeCl3 and PbCl2? (As if using an analysis scheme)

Chemistry
What reagent would allow you to distinguish between BaS and NiSO4? (As if using an analysis scheme)

Chemistry
What reagent would allow you to distinguish between AgNO3 and MNSO4? (As if using an analysis scheme)

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