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Posts by greg

Total # Posts: 477

geometry
de is equal to 17

TEACHING
HOW DO DUE PROCESS RIGHTS DIFFER FOR PROBATIONARY AND TENURED TEACHERS

Chemistry
it stands for Mu/meter

Chemistry
A heat lamp produces 22.5 watts of power at a wavelength of 6.0 {\rm \mu m}. How many photons are emitted per second? 1{watt}} = 1 J/s i got 7.02*10^20 but that is incorrect, can you help?

college Chemistry
Hydrobromic acid is a strong acid. If you have 1 L of a 7.5 M solution of Hydrbromic acid? A) What is the concentration of H_3O^+? B) What is the PH of this solution? C) If you dilute 1 liter of 7.5M in HBR solution to a volume of 2 L what is the new concentration?

11th grade
Use the following functions to solve. f(x) = x2 + x + 1; g(x) = 5 - 2x; h(x) = -x2 Solve f(g(-1))

algebra II
Use the following functions to solve. f(x) = x2 + x + 1; g(x) = 5 - 2x; h(x) = -x2 Solve f(g(-1))

math
could someone show me how to write this or set up this equation?2 ships sail from the same port, one sails dew east at 15 mph and the second sailed dew south at 20 mph, how far apart are the ships after 3 hours?

math
2 ships sail from the same por, one sails dew east at 15 mph and the second sailed dew south at 20 mph, how far apart are the ships after 3 hours? could you show the how you set this problem up?

math
the length of a calculus book is 2 inches more than the width. the perimeter is 36 inches find the width

11th grade Algebra
The answer to this question is -3. The equations work out to be -3n-7=-2n-4, and then you can just work it out for yourself.

physics
Whoops. Slope = Change in y / change in x

physics
Slope = Change in y / change in y How much did y change between the two points? How much did x change between the two points? Divide them.

Gradient Vector Fields in Mathematica 7
How would you plot the gradient vector field of f(x,y)=x^2-3*x*y+y-y^2 on the domain [-4,4]*[-4,4] in Mathematica 7? I know the function is "VectorPlot" (h t t p : / / g o o . g l / p c S f), but I don't know how to isolate the x and y inputs because of the -3*x*...

Math
Thank u ms. Sue. :)

Math
5/8y=40

Physics
Nevermind everyone, I've got it.

Physics
In moving a 35.0 kg desk from one side of a classroom to the other, a professor finds that a horizontal force of 300 N is necessary to set the desk in motion, and a force of 185 N is necessary to keep it in motion at a constant speed. (a) What is the coefficient of static ...

physics
Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1000 m/s2 lasting for at least 1 ms ...

biology
hello?????????????????????????????????!!!!!!!!!!!!!!!!!!!!!!!!!!

biology
_________ occur when bonds are broken or formed

biology
an atom that gains for loses electrons has an electrical charge and is called an _____.

physics
In the diagram below, qA = 9.8 µC & qB = -1.4 µC. There is no charge at point C. The distance between A & C is 2.1 cm and the distance between B & C is 9.6 cm. Find the electric potential at point C

math
i think -5 + n

6th grade/math
8 and 3.

physics
If your mass is 56 m/s, what is your acceleration? ____m/s

science
You observe that one fox eats 100 rabbits each year. You have the idea that every increase of one in the fox population will cause the rabbit population to decrease by 100.

science
Looking to check the mathematical formula for this: You learn that for every 1,000 meters you rise in the atmosphere, the temperature drops by 6 degress C. You have the idea that if you know the temperature at the base of a mountain and its height, you can figure out the ...

math
F-R=T?? Something seems to be missing.

math
I do not understand how to arrive at the mathematical representation. Thanks.

math
Thanks. I just could not figure out the mathematical representation to illustrate the above.

math
Tka for the assist.

math
D= ___M___ V

math
OOOh - that one stumped me. Thanks.

8th grade,math/probability
2/23 PROBLY

english 1
the couple ordered soup hors d' oeuvres at the wedding

Algebra
Thanks for the help!

Algebra
yes

Algebra
4 sqrt 32 -3 sqrt 2=

Algebra
Solve (x+12)(x-10)(x+3)>0 Solution set is:

algebra
Thanks, I kept coming up with strange answers. That makes sense.

algebra
find the x and y intercepts: f(x)=-x^2 +3x+10

Calculus
a can containing 54 in cubed of tuna and water is to be made in the form of a circular cylinder. What dimensions of the can will require the least amount of material?

algebra 2
In the matrix below, which element is a1,2?      1 4 7 2 5 8 3 6 9      A. 8 C. 6 B. 5 D. 2 Examination

Political Science
I need help on this. What does the term red tape mean, and how does it relate to the federal bureaucracy? To what extent is Congress to blame for bureaucratic red tape? What are some of the benefits of the federal bureaucracy? What are some of the drawbacks to the current ...

religion
this is what I have wrote so far There are many types of religions that exist in our world. With the emergence of so many cultures in the United States comes the existence of numerous religious views. While religions may differ in their goals and in the way they envision and ...

religion
that is my problem it is suppose to be a 350-500 word summary and I will never be able to do it in that many words

religion
what are major similarities and differences among the different religious groups like Atheist, Buddhist Baptist, Catholic, Protestant, Methodist, Hindu, Islam, Jehovah's Witnesses, Mormon Sikh Judaism

math-slope
slope = -2 y intercept = -3

math- CAN SOMEONE PLEASE HELP
Y = mx + B m= slope x= x coordinate y= y coordinate b= y-intecept thus, 5/3 is the slope and 8 is the y-intercept.

Algebra
If a bottle and a stopper costs $1.10. How much does the stopper cost?

calculus
Find the coordinates of all points on yhe graph of y= 1-x^2 at which the tangent line passes through the point (2,0).

Math
0.3(11x+4) greater than 2.1-(x+8)

Physics
At an amusement park, a swimmer uses a water slide to enter the main pool. The swimmer slides without friction, and descends through a vertical height of 2.89 m. Find the swimmer's speed at the bottom of the slide if she starts with an initial speed of 0.870 m/s.

math
Identify n(S) for the given set S = { 5, 10, 15, 20, 25, 30, . . .}

math
Express the ratio in simplest form. 48 feet to 20 feet

Math
42 divided by 2=21 , 21-12=9, 9+21=30,30+12=42

Sci
cool thanks!

Sci
what are good materials to make a wind powered car out of? i mean a fake car like milk jugs stuff like that

sci
no, i mean a fake car like milk jugs stuff like that

sci
what are good materials to make a wind powered car out of?

MATH
solve for x, 4 1/2 + x = 6 1/6

Calc
A metal cable has radius r and is covered by insulation, so that the distance from the center of the cable to the exterior of the insulation is R. The velocity v of an electrical impulse in the cable is v = -C(r/R)^2*ln(r/R) where c is a positive constant. Find the following ...

English
Hamlet: I need to look at the passages from Acts IV and V and assess their impact within the context of the whole play. I have already done so and it's giving me these questions using a passage. I need some help, please. :) Passage 1: " Now, whether it be Bestial ...

English
I need help with this. “What is Hamlet ‘about’?” and “What are its enduring themes and messages?”. The responses you provide do not have to be governed by the Values and Worldviews (Dialectic) approach. Substantiate your own ideas with evidence ...

spanish
It should be abrázame fuerte, which means "hold me tight". The other is toda la noche which means "all night". brasa mi puerta means "grill my door" LOL

physics help!!!
wow, my apology. im sorry. i was expecting to get explainations and get the right equations. im very interesting in physics and i found this great website. you all are very helpful! so i thought i could get as much help as i could. AND you said that i can repost some questions...

physics help!!!
What is the minimum work needed to push a 900 kg car 460 m up along a 17.5° incline? (a) Ignore friction. (b) Assume the effective coefficient of friction retarding the car is 0.30?

8th Grade Science
It slows down the the dissolving process due to the vicosity of the gas;the gas particules are always together which make the particules move slower but they stay stronger

Maths
change so x is the subject y=2/x and y=-n/x the minus is for the whole fraction please show your working thanks in advance :)

Maths
how would you work out y=2/x and y=-n/x the minus is for the whole fraction please show your working thanks in advance :)

Maths
The book states that the answer is one and a third i got the same answer as Rachel

Maths
x/2 + x/4 = 1 the answer is 1 1/3 can you show me the method please thanks in advance :)

Statistics
For df = 25, determine the value of A that corresponds to each of the following probabilites: a. P(t >- A)= 0.025 b. P(t <- A)= 0.10 c. P(-A <- t <- A)=0.99

science
Hi Ali :)

english
how does the text "lord of the flies" relate to journeys?

us history
In what ways does the Magna Carta still impact law?

Physics
You are told that the volume of a sphere is given by V=(sqrt)d^3/4, where V is the volume and d is the diameter of the sphere. Is this equation dimensionally correct?

Physics
Roughly how high could a 305 K copper ball lift itself if it could transform all of its thermal energy into work? Copper has a specific heat of 386J/kg * K measured near room temperature (293 K) and atmospheric pressure.

chem
Is this a good way to define crystallization: decreasing the temperature or evaporating the solvent can create crystals?

chemistry help
45

english
The essay has to be 350 words What I learned in Home School Home school is easer than public school. I am able to learn all the same subject at home as I did in public school. I am also able to learn other things that you are not able to do in public school. History taught me...

Math-Factoring
Hey I need help factoring 5x^4-180x^2. I'm used to factoring with three numbers, and not two. How would you do just two like this? Thanks

pre-algebra
You want to paint a wall that is 8 3/4 feet high and 11 1/4 feet long. You have a can of paint that will cover 200 square feet with one coat. A. find the area of the wall. b. if you want to apply two coats of paint , do you have enough paint? explain

science
a device that uses electicity to a force to move things

5th grade math
um so number 2 is -1.667? and 3 and 4 is what i don't understand

5th grade math
write the fraction or mixed number as a decimal. 1/5 -5/3 3 4/25 8 5/44

Math
Solve this Equasion x=2y 4x+y=12 using the substitution method. Please give solution

math
to join a gym your friend pays a one-time fee of $75 and $45 per month for the duration of the membership.Your friend has paid a total of $345.How long has your friend been a member of the gym??

6 grade
to join a gym your friend pays a one-time fee of $75 and $45 per month for the duration of the membership.Your friend has paid a total of $345.How long has your friend been a member of the gym??

algebra with pizzazzi
Need help why are Mr and Mrs number so happy?

help plzzz
this is what i do with all my math work

calculus
Consider the function f(x)=12x^5+30x^4–160x^3+5 . f(x) has inflection points at (reading from left to right) x=D , E , and F D= E= F=

calculus
f(x)=x^3/(x^2-1) find the regions of concavity and inflection points

Math
Describe an application for the use of ratios or proportions

7th grade
explain the usefulness of algebra in modern mathematics.

physics
Consider the 59 N weight held by two cables The left-hand cable is horizontal. What is the tension in the cable slanted at an angle of 51◦? Answer in units of N. What is the tension in the horizontal cable? Answer in units of N.

physics
Consider the 59 N weight held by two cables The left-hand cable is horizontal. What is the tension in the cable slanted at an angle of 51◦? Answer in units of N. What is the tension in the horizontal cable? Answer in units of N.

Critical Thinking
THE STATED PREMISE MAKES SENSE, BUT THE CONCLUSION IS STILL VAGUE

Math
If the area of the base of a cone is 25 pi square units, express the volume of the cone as a function of its height?

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