# Posts by becky

Total # Posts: 685

story problem
The mass of Pluto is about 1.31 x 10^19 metric tons. The mass of the sun is about 1.998x10^27 metric tons. About how many times the mass of Pluto is the mass of the sun? Give answer in scientific notation. Is this correct? 1.53x10^8

more algebra
(4-x)(3-2x)= Is this correct? 12-11x+2x^2

algebra
(1.6x^3+4.7x^2-3.8x)-(-4.3x^3-4.4x^2+55) Is this correct? 5.9x^3+9.1x^2-3.8x-55

algebra
(x^6-13x^3+42)divided by (x^3-6) Is this correct? x^3-7

algebra
40x^8-56x^4+24x divided by 8x Is this correct? 5x^7-7x^3+3

algebra
Factor - check by multiplying Is this right? x^2-6x = x^2(x-6)???

algebra
No, really the problem is &-7x+3)+(4^2+1/2 {one half}x-10 I came up with -14x^2+8x^2-13 over 2 Is this correct?

algebra
(-7x+3)+(4x^2+1/2x-10)

algebra
(-7x+3)+(4x^2+1/2x-10) Simplify answer - -14x^2+8x^2-13 over denominator of 2?

algebra

algebra
Yes, thank you. I had the answer you wrote but wasn't sure.

algebra
Would the problem (xz^3)^-4 be simplified to 1/x4z12?

algebra
So, I come up with -8x^6-8x^2+-5 Would that simplify to x4+-5?

algebra
Divide 32x^8-32x^4+20x^2 by -4x^2

algebra
Find the perimeter of a polynomial with sides 3x 9 4x 6 6x+1 6

algebra
thank you so much

algebra
Given f(x)=2x+4, find f(a-4) a) 2a-4 b) 2a c) a+2 d) a-4

algebra
a) 2a-4 b) 2a c) a+2 d) a-4

algebra
Given f(x)=2x+4, find f(a-4)

algebra
Are the following lines parallel, perpendicular, or neither? x-6y=12 6x+y=6

algebra
Write the equation of the line passing through (1,0) and (1,-1) a) x=1 b) y=1 c) y=x+1 d) y=-x

algebra
it would be 9+7

algebra
When I multiply 6v^9*10v^7 I get 60v^16 My question is, do I add the 9+7 or multiply the 9*7?

algebra

algebra
Write the equation of the line passing through (1,0) and (1,-1) a) x=1 b) y=1 c) y=x+1 d) y=-x

algebra

Algebra
Are the following lines parallel, perpendicular, or neither? x-6y=12 6x+y=6

Science-- Physics
Does an object need to have a velocity of 0 meters per second to be in equilibrium and why/why not?

math
purple- 21/63 reduced to 1/3 brown- 21/62

algebra
Adult tickets for a play cost \$16 and child tickets cost \$5. If there were 22 people at a performance and the theater collected \$275 from ticket sales, how many children attended the play? A) 6 B) 7 C) 8 D) 15

algebra
Given f(x) = 5xsquared - 3x + 1, find f(-2)

algebra
graph the inequality y > -4

algebra

algebra
Solve each of the following systems by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 10x+2y=7 y==5x+3

algebra
Find values for m and b in the following system so that the solution to the system is (-3,4). 5x+7y=b mx+y=22

algebra
Solve the following systems by substitution. 4x-12y=5 -x+3y=-1

Algebra
Rewrite into standard form (0,5), m=-3/5. Write the equation of the line passing through each of the given pairs of points. Write the answer in slope-intercept form, where possible. (2,-3) and (2,4)

GCSE Biology
how is the structure of a sensory neurone allows it to do its job

SOCIOLOGY
explain to me why applying sociological perspective can make as seen less in control of oor lives

math
A full grown oak tree loses an average of about 7 tons of water through its leaves per day. About how many tons of water is that per year? I need an exact answer using partial products. Can anyone please hlep?

Algebra
2(x-3) - 3(x+5) = 3(x-2) -7 (2x-6) - 3x+-15 = (3x-6) -7 -x-21 = 3x-13 -x-3x = -13+21 -4x = 8 x = 8/-4 x = -2 Is this correct?

Algebra
2(x-3) - 3(x+5) = 3(x-2)-7 2x - 6 - 3x + 15 = 3x - 6 - 7 2x - 6 + 6 - 3x +15 + 6 = 3x - 6 - 7 2x - 3x + 22 = 3x - 7 2x + 22 = -7 Now I am stuck

Algebra
2(x-3)-3(x+5) = 3(x-2)-7

Chemistry
I have a bag of m&m's with 52 in it and on the pkg it states it weighs 47.9g. If I divide by 52 it gives me .92g per m&m. To find out what the mass is of a mole of m&m's do I Multiply 6.02 x 10 to the 23 power x .92g for my answer?

Social Studies
The Adironadack Mountains, the Hudson and Mohawk Valleys, and the Atlantic Coastal Plain are all examples of ?

physics
OH! Then subtract 273 from answer to change it to celcius.

physics
1000 = (5.67*10^8)(1m^2)(T^4) Then solve for T :)

Vitamins
I just took a quiz with this exact same question and the answer is Vitamin A, Vitamin D, and B6.

organic cehmistry
I am totally lost on the subject of Fischer projection. I have no clue on where to begin solving : (S) 3-chloro-1-penten-4-yne http://www.mhhe.com/physsci/chemistry/carey/student/olc/ch07projections.html

Math
An electronics firm uses 600 cases of transistors each year. The cost of storing one case for a year is 90 cents, and the ordering fee is \$30 per shipment. How many cases should the firm order each time to keep total cost at a minimum, assuming the transistors are used at a ...

Calculus II
What is sin(i) -- (sin of the imaginary number, i) What is cos(i)-- cosine of the imaginary number, i orrr tan(1+i) You can derive these things from the equation: Exp(i x) = cos(x) + i sin(x) ---> sin(x) = [Exp(ix) - Exp(-ix)]/(2i) cos(x) = [Exp(ix) + Exp(-ix)]/2 tan(x) = 1...

Math Question
Which one of the following pairs of triangle must be similar? a) two isosceles triangles with congruent vertex angles b) two right triangles c) two scalene triangles with congruent bases d) two obtuse triangles a) if the two vertex angles are the same then the other two angles...

Math
If two angles of one triangle are congruent to two angles of another triangle, these triangles must be a) scalene b) similar c) congruent d) isosceles Dont all traiangles have 180 degrees? So if two angles were congruent, what about the third? I still don't get it. I would...

Math Question
If two sides of a triangle have lengths 4 and 9, then the length of the third side may be any number a) less than 13 b) greater than 5 but less than 13 c) greater than 4 but less than 9 d) greater than 5 I suggest you draw this. It is not d, nor a. it is b. Am I correct? yes ...

chemisty help
for the reaction shown, compute the theoretical yield of the product in grams for each of the following initial amounts of reactants. Ti + 2F2 to make TiF4 There are 3 sub questions for this. Help me out with one, then I'll try to figure out the rest. thanks a) 4.8g Ti; 3....

Poetry: The Next War Wilfred Owen
The theme of this poem is a look to the future where men would war against death to save lives.

science
230 volts, 120 watts what fuses will i need a 3A, 5A, 13A please answer Power= V*I so currnt= power/V in this case 120/230, in this case less than an ampere. So use the 3A.

Why can't I post
I don't know why, but i am getting a friend to post this up for me, but i cannot post a question, when i do, the successful window never comes up. it just goes back to the forum and doesnt add. can anyone help me why? or what i might need to do to get it fixed? This ...

math
3vt+v(5v-7t 5v^2 - 7vt + 3vt combine the last two terms.. 5v^2-10vt factor out a 5v 5v ( you do the rest).

Chemistry Check if its right XD
Ok here is the problem but i only need help on part a XD i think i did it wrong..so can you check my work? and tell me where i made the mistake? The space shuttle uses aluminum metal and ammonium perchlorate, NH4ClO4, in tis reusable booster rocket. The products are aluminum ...

Biology help..!
How does the nucleotide sequence in one chain of DNA compare with the other chain of DNA? The are complementary. How does the nucleotide sequence in one chain of DNA compare with the other chain of DNA?

Biology
1. How many base pairs are in a full turn or twist of a DNA molecule? 2. Name the complementary base pairs on DNA. A-T; G-C are the pairs, you name them. there are 10 1/2 base pairs for a full twist in DNA How does the nucleotide sequence in one chain of DNA compare with the ...

English, Poetry Riddles
Legs I have got, yet seldom do I walk; I backbite many, yet I never talk; In secret places most I seek to hide me, For he who feeds me never can abide me. [p.s pleeeeeeease help me!! :S

physics
IO, a small moon of the girant plant jupiter has an orbital period of 1.77 days and an orbital raduis equal to 4.22*10^5km. From these data, determine the mass of jupiter. nvm XD i solved it myself ^^

physics
A satellite has a mass of 100 kg and is in an orbit at 2.00*10^6 m above the surface of the Earth (a) what is the potential enegry of the satellite at this location?(b) what is the magnitude of the gavitational forece on the satellite? a) Since the weight drops somewhat as a ...

physics
Given that the Moon's period about the Earth is 27.32 days and the distance from the Earth to the Moon is 3.84*10^8 m estimate the mass of the Earth. Assume the orbit is circular. Why do you suppose your estimate is high? The force of attraction= centripetal force G MeMm/d...

physics
Use the table of 7.3 to find the point between the Earth and the Sun at which an object can be placed so that the net gravitational force exerted on it by these two objects is zero. TABLE 7.3 <--- for the earth and the sun Body

physics
1. the average distance separating the Earth and the Moon is 384 000 km. Use the data table 7.3 to find the net gravitational force the eath and the moon exerts on a 3.00*10^4-kg spaceship located halfway between them. TABLE 7.3 <--- for the moon and the earth Body

math
the vertices are at (2,1) and (2,7) and focus is at (2,*) write the equation of the hyperbola that meets each set of conditions. Is the asterisk supposed to be an 8? It has to be some number. I will set this up for you later of you respond. The fomulas you need are in most ...

US history
here is my question Why did socialism appeal to some Americans in the late 1800s? Many people were disturbed by the horrendous working conditions for laborers in factories. They worked long hours, made very little money, and therefore lived economically impoverished lives. ...

physics
A 2000-kg car rounds a circular turn of a radius 20m. if the radius flat and the coefficient of friction between tires and road is .70, how fast can the car go without skidding? centripetal force = frictional force m v^2/r= mg*mu solve for v. um i was wondering..do i need to ...

physics
hi i have a physics question i don't understand here is the question A sample of blood is placed in a centrifuge of radius 15 cm. the mass of the corpuscle is 3.0*10^-16 kg, and the magnitude of the force required to make it settle out of the plasma is 4.0X10^-11 N. At how...

English Essay
i was wondering if anyone can help me with an essay that is a comparison between the Rapunzel by the Grimm Brother's to a story called "Rapunzel Rapunzel" by Jean Ryes. The prompt is: Compare the two essays with the hair,tower and princ and how it is related to ...

Physics
sorry i know i keep asking but my teacher wont be here today and tomorrow..and i don't understand these four problems... 1) a 65.0-kg person throws a .045kg snowball forward with a ground speed of 30.0 m/s. a second person with a mass of 60.0-kg catches the snowball. both ...

Physics-momentum/impluse
hi well i have two questions i don't understand how to solve and all. 1) The front of a 1400-kg car is designed to absorb the shock of a collision by having a "crumple zone" in which the front of 1.2m of the car collapses in absorbing the shock of a collision. if...

the big idea of energy
You guys I have an assesment on the "The Big Idea of Energy" and I have no clue about it, no one told be anything! It's soooo stupid so you have got to tell me what it NOW!!!

physics-energy
HI well i have two questions 1) a 2.0-m-long pendulum is released from rest when the support string is at an angle of 25 with the vertical. what is the speed of the bob at the bottom of the swing? 2)A 2.0*10^3-kg car starts from rest at the top of a 5.0-m-driveway that is ...

Math-acceleration
An object moves across a straight line so that after t seconds, is distance from its starting point is: D(t)=t^3 - 12t^2 + 100t + 12 meters. Find the acceleration of the object after 3 seconds. I believe acceleration is calculated by taking the second derivative. D'(t) = ...

technology
can you please tell me types of metal and about them thanks

making dot arrays
Numbers that CAN be made into a 2-row dot array are EVEN numbers (2,4,6,8,etc). Those that CANNOT are called ODD (1,3,5,7). in other words, if the question is asking you to make a 2-row array, it wants you to divide the number by two and make 2 rows of X dots. Example - Make a...

Math - Chain Rule
I've been having some difficulities with this but I think I figured it out. Could you double check me and make sure I'm doing the correct steps? Differentiate and simplify the answer. f(x) = 2(3x+1)^4 (5x-3)^2 =2(3x+1)^4 [2(5x-3)(5)] + [8(3x+1)^3] (5x-3)^2 =2(3x+1)^4 [...

geometry:linear measure and precision
RS=4x,RS=ST,and RT=24

math - marginal analyis
A factory's output is Q=600K^1/2L^1/3 units, (read 600 x K to the 1/2 power x L to the 1/3 power). K denotes capital investment and L denotes the size of the labor force. Estimate the percentage increase in output that will result in a 2% increase in the size of the labor ...

math-marginal analyisis
Just need someone to double check this problem. I just don't feel comfortable with my answer. An enviromental study of a certain communtiy suggests that t years from now, the average level of carbon monoxide in the air will be Q(t)=0.05t^2+0.01t+3.4 parts per million. (...

sociology
I can only laugh! How freakin' funny that everyone at Axia doing their ETH125 homework trying to see what they can find on the net hits this site. Thanks for the tips (yes, they are just tips - because it does not tell you what it says in Chp2 pg34.) Good luck to all ...

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