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October 22, 2014

Homework Help: 2nd Grade

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5th grade
i need help with factors
Tuesday, August 26, 2008 at 8:25pm

science
1. A violin string is oscillating at a frequency of 880 Hz (1 Hz = 1 full cycle / second) in its 2nd harmonic. What wold be the frequency of the fundamental vibrational mode? 2. Describe how you would go about finding the frequency of an unmarked tuning fork using the ...
Thursday, July 31, 2008 at 3:50pm

Help Help
Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0 <= X and X < 49) output "you fail" else if (50 <= X and X < 70) output "your grade is" X output "you did OK" else if (70 <...
Wednesday, June 11, 2008 at 4:54pm

programming
Can You Please help me understand how to do this and what i have to do to solve the problem.... Please!! Consider the following selection statement where X is an integer test score between 0 and 100. input X if (0 <= X and X < 49) output "you fail" else if (50...
Wednesday, June 11, 2008 at 4:53pm

COLLEGE PHYSICS
A rollercoaster car of mass 600.0 kg is moving 2.4m/s at the top of a peak that is 25m off the ground. The car moves down slope and up the next hill. Assume that it loses 20,000J of energy by the next time it gets to the top of the next peak due to friction forces. If the ...
Saturday, May 31, 2008 at 7:06pm

Pre-Algebra
A Jet airplane leaves an airport traveling at a steady rate of 600km/h. another jet leaves the same airport 3/4h later traveling at 800km/h in the same derection. how long will the 2nd jet take to overtake the first?
Wednesday, May 21, 2008 at 8:45pm

peer reviewing essay
Hi, I have two assignments I have to submit to my AP US History teacher for next year by June 2nd. The first part is to explain why I should be in the class in a one page essay with size 11 font and 1.5 spacing. Could someone please read through my essay and see if it's ok...
Saturday, May 10, 2008 at 1:47pm

Math, derivatives
f(x) = x² + 2Cos²x, find f ' (x) a) 2(x+cos x) b) x - sin x c) 2x + sin x d)2(x - sin2x) I got neither of these answers, since the 2nd part should be chain rule, right? f(x) = x² + 2Cos²x = x² + 2(Cos x)² then f '(x) = (2)(2)(cosx)(-sinx) ...
Monday, May 5, 2008 at 8:19pm

grade 5 math
the grade 5 class decided to collect cans of food to donate to the food bank .After the 1st week ,they had collected 8 cans . The next week they collected 11 more . By the 3 rd week they had 31 cans Following this pattern how long will it take for them to reach there goal of ...
Sunday, May 4, 2008 at 9:47pm

English
I am writing a story about a girl who is living a stable life that she has created for herself. However, her biological sends her a letter apologizing for putting her up for adoption and telling she wants to see her. She is very confused. My last paragraph states that she goes...
Sunday, May 4, 2008 at 6:03pm

Physics
4th order dark fringe and 2nd order bright fringe spaced 2.5 cm aparte appear on the screen placed 1 m behind the double slit. What is the spacing of the slits if the wavelegth ofincident light is 500nm? First I converted the numbers: x= .025m wavelength= 5x10^-7m L=1m d=? I ...
Wednesday, April 30, 2008 at 4:30pm

French
I'm wondering, is the first one right or is the 2nd one right? 1.) Tout le monde ne VA pas répondre corrier eléctronique 2.) Tout le monde ne VONT pas répondre corrier eléctronique Or is it something else? and im mostly wondering about the aller...
Tuesday, April 22, 2008 at 11:06pm

Physics
4th order dark fringe and 2nd order bright fring spaced 2.5cm apart appear on the screen placed 1 m behind the double slit. What is the spacing of the slits if the waveleght of incident light is 500nm? x=2.5cm=.025m L=1m wavelegth= 500nm = 5x10^-7m d=? x/L=wavelength/d d= (...
Tuesday, April 22, 2008 at 10:58pm

6th Grade Math
I really don't know what to do on this question. If someone could start me off I could probably get the answer. Remember I am in 6th grade. Dani has a sack of 50 pens. Of these, 10 are black, 15 are blue, and the rest are red. If she grabs a handful of 5 pens, how many ...
Monday, April 21, 2008 at 7:19pm

Circuit Problem- Physics
I am trying to do these 2 problems. I'm starting out with the RC Circuit (2nd one): h t t p ://img201.imageshack.us/my.php?image=cir​cuit5ij7.png *delete spaces or link won't load! a) The capacitor acts as a bare wire with no resistance, so: I=V/R=V/(4/5R) b) ...
Sunday, April 13, 2008 at 10:05am

Algebra
I am having trouble with finding the 1st and 3rd quartiles of a set of data. For example, let's say the data is: 4, 9, 11, 16, and 24<- these are cumulative frequencies. The median (or 2nd percentile)is 11, right? My teacher says it's 12. Then for 3rd quartile I got...
Thursday, April 3, 2008 at 8:52pm

Math
A baseball diamond is a square with sides of 90 ft. long. a) to the nearest foot, what is the length of a throw from home to third base... b) what is the length of a throw from the shortstop position (midway between 2nd and 3rd) to 1st base
Tuesday, April 1, 2008 at 3:58pm

Pre Cal(please show me the work)
At the show a basketball card dealer tells you that a vintage card increases in value by a factor of 10 every 9 years.If the card is now worth $32, how long ago did she buy it?(Hint: Remember that the value is multiplied by 10 every 9 years, not every year.) 2nd Question ...
Tuesday, March 18, 2008 at 3:42pm

linear algebra
i'm not sure how to go about this one. any help would be appreciated! find all x's that would make the 2x2 matrix below = to a shear-dilation: 1st row: 1, x 2nd row: 3, 4
Saturday, March 8, 2008 at 10:24pm

arithmetic
Word Problem: A hospital needs to figure the annual budget for an 11 bed facility based on 90% occupancy using a 4 day length of stay. 1st day = $625.00, 2nd day - $315.00, 3rd day = $315.00 and 4th day = $220.00. How much money can they expect to make for an entire year?
Wednesday, February 27, 2008 at 2:47pm

Math
OOPS! Draw a pair of quads. where the angles of the 1st quad. are congruent to the angles of the 2nd quad. No side of one quad. is to be congruent to any side of the other quad. THIS is straight out of the workbook SORRY!
Monday, February 25, 2008 at 4:46pm

Geometry
Draw a pair of quadrilaterals where the 1st quad. is congruent to the 2nd quad. No side of one quad. is to be congruent to any other quad. Straight out of workbook! PLEASE HELP!!!!!!!!!!!!
Monday, February 25, 2008 at 4:37pm

Math
Draw a pair of quadrilaterals where the 1st quad. is congruent to the 2nd quad. No side of one quad. is to be congruent to any other quad Straight out of workbook! PLEASE HELP!!!!!!!!!!!!
Monday, February 25, 2008 at 4:31pm

Intro to Probability, please check my work.
A fair coin is flipped three times. You win $5 every time the outcome is heads. Let the random variable X represent the total number of dollars you win. (a) List the sample space. (b) Determine the probability function of X. ====================== Answer: a) 2^3= 8 ...
Sunday, February 17, 2008 at 3:35pm

Social studies
i need to make an essay about two stories 1st- the tell tale heart 2nd- the speckled band, sherlock holmes story the only problem is the essay needs to be about what they have in common and what differences they have and mix it into paragraphs any help?
Monday, February 11, 2008 at 2:22pm

proofread
Hi, can someone proofread this for me. I'll appreciate it. Thanks in advance. The practicum site I selected is an elementary school. I will be assisting a first grade teacher during the semester. I will be helping her with her students and with other teacher ...
Sunday, February 3, 2008 at 11:34pm

Math
Can i please get your help on fractions and i am in the 7 th grade
Wednesday, January 30, 2008 at 5:49pm

Chem
Consider the following reaction was found to be the 0th order to A and 2nd order to B. 2A(cr) + 3B(aq) -->A2B3(cr) Write a rate law equation for the reaction rate of A with B.
Tuesday, January 29, 2008 at 10:57pm

7th grade geometry
pr/ac = ?/cb pr=6,ac=?, cb=15
Monday, January 28, 2008 at 6:52pm

Algebra
Twenty-five percent of your budget will be used to rent business space and pay for utilities. Write an algebraic expression that indicates how much money will be spent on business space and utilities. 2nd question. .25($118,250.00) correct answer? .25($118,250.00)
Tuesday, January 22, 2008 at 3:06pm

Physics Questions!
An interference pattern is set up by two point sources of the same frequency, vibrating in phase with one another. A point on the second nodal line is 50.0 cm from one source and 59 cm from the other. The speed of the waves is 35 cm/s. Calculate the frequency of the sources. I...
Saturday, December 15, 2007 at 12:11pm

college math
13. (4 pts) At an annual flower show, 6 different entries are to be arranged in a row. a) How many different arrangements of the entries are possible? b) If the owners of the 1st, 2nd, and 3rd place entries will be awarded prizes of $100, $50, and $25 respectively, how many ...
Wednesday, December 12, 2007 at 9:24pm

Grade 10 MATH
17^115
Wednesday, December 5, 2007 at 7:56pm

algebra 2
consecutive odd integer problem find two odd integers the sum of whose squares is 130. (sq)=squared let x= 1st odd int let x+2=2nd odd int (2x+2)(2x+2)=130 4x(sq) + 4x+ 4x +4=130 4x(sq) + 8x -126= 0 2(2x(sq)+4x-63)=0 My question: the two numbers to factor the equation. pair of...
Monday, December 3, 2007 at 7:13pm

algebra 2
consecutive odd integer problem find two odd integers the sum of whose squares is 130. (sq)=squared let x= 1st odd int let x+2=2nd odd int (2x+2)(2x+2)=130 4x(sq) + 4x+ 4x +4=130 4x(sq) + 8x -126= 0 2(2x(sq)+4x-63)=0 My question: WHAT ARE THE TWO DARN #s!!!
Monday, December 3, 2007 at 6:30pm

math 2nd question please help
cos^2xcos^2y+sin^2xsin^2y+sin^2xcos^2y+s​in^2ycos^2x = 1
Thursday, November 29, 2007 at 9:06pm

math
what are the 2 greatest consecutive even integers whose sum is less that 180? for the 1st I got x+2 and for the 2nd I got x+4 to get x+2+x+4<180, and solved to get, x<87. Now.. I cant get the answer. biggg problemo. please help.
Wednesday, November 14, 2007 at 8:14pm

algebra- integer problems
Hi! i have this problem, I'm stuck on. it says find 2 consecutive multiples of 9 whose sum is -153. I started of my saying the 1st number is 9x and the 2nd is 9x+9. I continued on to get, 9x+(9x+9)=-153 and solved it. I got an irrelevant answer: -9. I was wondering what I ...
Wednesday, November 14, 2007 at 7:52pm

computers
which set of terms below correctly pairs a generation of computers with key innovation associated with it? a. 2nd generation/ intergrated circuits b. 3rd generation/programming languages c. 4th generation/ operating systems d. 5th generation/artificial intelligence
Monday, November 12, 2007 at 9:28pm

AP CHEMISTRY
If a Li 2+ ion, initially in the 2nd excited state absorbs a photon of light with a fequency of 2.82 X 10^6 GHz, what will be the final energy level for this electron? Show all stepts to get final energy level. i have no clue what this question is even asking :[?
Wednesday, November 7, 2007 at 9:25pm

CHEMISTRY
If a Li 2+ ion, initially in the 2nd excited state absorbs a photon of light with a fequency of 2.82 X 10^6 GHz, what will be the final energy level for this electron? Show all stepts to get final energy level. i have no clue what this question is even asking :[?
Wednesday, November 7, 2007 at 7:14pm

Math
I need help with these questions: Copy the equations. Add brakcets to make each one true. a) 7 - 5 to the 4th power divided by 8 = 2 b) 3 x 2 - 5 to the 10 power = 1 c) 39 - 4 + 6 divided by 3 to the 2nd power = 3
Monday, October 29, 2007 at 6:07pm

Word Processing
I'm a GranMa in my 60's trying to learn Word/Windows. I started with the 2nd course and have had only this one problem in 3 weeks so that is good. I don't think the answer to my problem is in the book for THIS course. I can't figure out how to use the commands ...
Thursday, October 11, 2007 at 9:10pm

algebra
Sam must have an average of 70 or more in his summer course to obtain a grade of C. His firs three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C grade.
Wednesday, October 10, 2007 at 12:50am

Physics
This problem concerns a student that is attempting Newton's 2nd Law, but the cart does not run without friction. How do I calculate the drag force, givin the mass of the cart (7.6kg), the mass of the load (4.2kg), and the resulting acceleration (1.2m/s2)? I'd ...
Saturday, October 6, 2007 at 8:03am

math
An instructor counts homework as 1/3 of the student's grade and the final exam to be 2/3 of the student's final grade. Going into the final exam a student has a homework grade of 48%. What range of scores on the final exam would put the student's final average ...
Sunday, September 30, 2007 at 8:08pm

Int Alegbra
2nd question Flagpole is secured on opp. sides by 2 wires. each of which is 5 ft longer that the pole. Distance between the points where the wire are fixed = to the length of one wire. How tall us flagpole to nearest inch?
Sunday, September 30, 2007 at 3:04pm

chemistry
Why is it important that the sequence of addition of reagents be followed? What could possibly go wrong when this is not followed? Reagents added: 1st: Fe3+ solution 2nd: 2.00 mL 10% NH2OH-HCl (hydroxylamine hydrochloride) 3rd: excess 0.20% 1,10-phenanthroline 4th: 1.00 mL ...
Saturday, September 15, 2007 at 4:41pm

chemistry
Why is it important that the sequence of addition of reagents be followed? What could possibly go wrong when this is not followed? Reagents added: 1st: Fe3+ solution 2nd: 2.00 mL 10% NH2OH-HCl (hydroxylamine hydrochloride) 3rd: excess 0.20% 1,10-phenanthroline 4th: 1.00 mL ...
Saturday, September 15, 2007 at 1:45pm

Math
I am tring to finish my 10th grade. I got hurt last Jan. 2007. And was force to quit public school. In short of every. I started online schooling and I have to write an essay for a final grade in Math compare three college to each other and make a graph telling which school ...
Thursday, September 13, 2007 at 9:54am

math
Here it is: One night the palace was having a midnight snack. The king ate 1/6 of the mangoes. The Queen ate 1/5 of the remaining mangoes. The 1st prince ate 1/4 of the mangoes left. Then the 2nd prince ate 1/3 of the remaining mangoes. And the third prince ate 1/2 of the ...
Wednesday, September 5, 2007 at 5:32pm

check math
Here are my answers. Can you check if I got the right answers? Thank you! solve for x, where x is a real number. x^2+3x-4=14 x=6,3 (x^4-1)/(x^3)=0 x=1 (x-5)^2=9 x=2,8 2x^2+5x=8 x= [-5+/-sqrt(89)]/4 for first one x=-6 or x=3, factors are (x+6)(x-3) second... also x=0 third ... ...
Wednesday, August 8, 2007 at 4:29pm

Math23456
Problem:4x^2y^3 Choices: a.2nd degree b.3rd degree c.4th degree d.5th degree What I think:I think it is letter C. It is degree 3 in y. It is degree 2 in x. Normally, one would call this a degree equation , or a cubic equation.
Friday, June 29, 2007 at 4:56pm

math 2ND PART (B)
Part (b) 1.If next year the number of accounts increases by 20%, the number of technicians has to be increased by 20%, too. How many new technicians have to be hired next year? Please note: your result has to be rounded to the whole number. 2.What will be the total number of ...
Sunday, June 24, 2007 at 8:55pm

math 3rd part
b.The company is projecting a 20% growth each year for the next four years. How many technicians should the company’s Human Resource Manager plan to hire in each of the next four years? 1st year: 8 x .2 = 1.6 2nd year: 9.6 x .2 = ? Continue this pattern for the next 3 ...
Sunday, June 24, 2007 at 8:51pm

math 2nd part
Right! :-) This year they have eight technicians on staff and each technician is fully saturated with accounts. a.How many accounts does the company support at this time? You stated that each technician has 5 accounts. This year there are 8 technicians. How many accounts do ...
Sunday, June 24, 2007 at 8:51pm

Simplfing Fractions
Three problems I need to know if I am correct or not if not I will place how I got the answer and maybe some one can show me where I messing up aT Simplify 1+2/3 over top 2+1/2 My answer was 2/3 to me it does not seem right If I am wrong please let me know i will put all the ...
Friday, June 1, 2007 at 3:41pm

Algebra
the problem is to graph 3x - y < 2 x + y > 2 my solution is y = 3x - 2, y = -1x + 2 I,m lost at where my lines ar drawn. In y = 3x - 2 (y line is 3) and y = -1x +2 (y line is -1) or am I totaly lost. After continued effort I beleive 1st equation m = 3 and y-intercept is...
Sunday, May 27, 2007 at 4:57pm

math
List all possible rational zeros of... h(x)= 2x to the (4th power) - 5x (to the third power) + 3x (to the 2nd power) + 4x - 6 Use the Rational Roots Theorem. Any root of the form p/q with p and q relatively prime must be such that p divides 6 and q divides 2. You then find the...
Monday, May 21, 2007 at 6:22pm

physics-please check
is this right?: when a form of energy changes from one form to another some energy may transfrm into a useful form, those useful form of energy is high grade energy.while the rest of the energy will always change to form we cannot use.which is called the low grade energy. if i...
Monday, May 14, 2007 at 4:46am

history
on the 1st page can someone please help me??????? Its the 2nd and 3rd black dot next to my nasme. Even if this is a repost, more information needs to be given before we can adequately respond. Please repost with more information. Thanks for asking.
Sunday, April 29, 2007 at 9:25pm

English
I am doing a reading comprehension project and I need to find a book and a song about "the elderly". Please Help!! do you mean like about old people or a book called The Elderly? about old people. about old people. hang on I'll look google Books About the Elderly...
Sunday, April 29, 2007 at 5:20pm

algebra
Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. write an inequality representing the score that sam must get on the last test to get a C grade http://www.jiskha.com/display.cgi?id=116​...
Tuesday, April 24, 2007 at 11:47pm

1st grade math please help!!!
8...
Tuesday, April 24, 2007 at 10:29pm

5th Grade Math
I cannot get my brain around questions like this: 1/4 divided by 2/5 = 2/4 x ? I have 4 problems like this and even the example doesn't make sense - I may have copied it wrong off of the board. Can anyone help? Thank you! You invert the second fraction and then just ...
Monday, April 23, 2007 at 9:59am

unscramble letters
ietnnrncuinvtohte 2 words first 12 letters, 2nd 5 letters Thank you for using the Jiskha Homework Help Forum. How about "inconvenient truth?" i think so thanks srajmcgin what words can u make out of the word mellow? DIURETHPHELE Can N-Yone Unscramble Thes Letters ...
Thursday, April 19, 2007 at 11:07am

science
can you inscramble these letters to make 2 words first word 12 letters, 2nd word 5 letters ietnnrncuinvtohte Thank you for using the Jiskha Homework Help Forum again. I answered the first one I saw, which was just before this one!
Thursday, April 19, 2007 at 11:02am

trig
it says solve for all real solutions, compute inverse functions to 4 sigfigs. cos^2x=3-5cosx Devon, what grade level are these questions from? I am having the same problems as with your 9:14 post. Please see my partial solution in the post to bobpursely at 10:54 Devon, I have ...
Monday, April 16, 2007 at 9:57pm

tan x = 1/2
Can someone tell me what the radian value is for this number and how they got it? Thanks On a graph plot the point A(2,1) Let C(2,0) be the point on the x-axis x is the angle AOB and tan x = 1/2 Since angle x is not one of the special angles, you will have to use a calculator ...
Tuesday, April 3, 2007 at 7:22pm

grammer
what is the structure for conjugating verbs in subjontif Thank you for using the Jiskha Homework Help Forum. Since you label this "Grammar," do you mean in English? But because you also say "subjontif" do you mean in French? Please clarify so we give you ...
Monday, April 2, 2007 at 2:09pm

Math
At an annual flower show, 6 different entries are to be arranged in a row. a) How many different arrangements of the entries are possible? b) If the owners of the 1st, 2nd, and 3rd place entries will be awarded prizes of $100, $50, and $25 respectively, how many ways can the ...
Monday, March 26, 2007 at 1:49am

Math
At an annual flower show, 6 different entries are to be arranged in a row. a) How many different arrangements of the entries are possible? b) If the owners of the 1st, 2nd, and 3rd place entries will be awarded prizes of $100, $50, and $25 respectively, how many ways can the ...
Sunday, March 25, 2007 at 11:57pm

Math
Are you trying to solve for x, n or p? solve for n Show me how to work this problem. 2n = 4xp - 6 what is the problem? what grade r u in iam in 6 grade To get n all by itself, you need to divide by 2. But if you divide by 2 on the left, you have to divide by 2 on the right...
Wednesday, March 14, 2007 at 8:22pm

math
it is cross math (like sudouk) six rows across and six rows down 1st row has empty box, +, empty box, + box =6 this row is across 2nd row has x blacked out box, +, blacked out box, x, blacked out box this row is across 3rd row across is empty box, +, empty box,/ (division sign...
Monday, March 12, 2007 at 8:39pm

Sequence
Find the common difference and a formula formula for the nth term of the arithmetic sequence; 6, 2, -2, -6, -10,...a sub n = a)6-4n b)6-2n c)10-2n d)10-4n I think it is c but want to check. Ao is 10, then each term subtracts 4n from it....n=1, ... well if 6 is equal to the ...
Friday, March 9, 2007 at 12:28pm

Science
An object travels 8 m in the 1st second of travel, 8 m again in the 2nd second of travel, and 8 m again during the 3rd second of travel. its acceleration in meters per second per second is? Would the answer to this question be 0? I'm not positive, but wouldn't the ...
Thursday, March 8, 2007 at 4:18pm

advanced functions-logarithms
log(base 10)(x+5)+2log(base10) log(base10)(x+5(10 to the 2nd power) log(base10)(100x+500) I love you china.
Wednesday, March 7, 2007 at 8:36pm

algebra 1
Can anyone help me with these questions? Please 1. ac - bc + ad - bd 2. xy - 3x - 8y + 24 3. 4x2 + 20x + 5y +xy 4. 48x2y + 20xz +12xy + 5z is the 4x2 4 times 2 or 4x to the power of two or 4 times x times 2? same question with 48x2y. its to the 2nd power
Wednesday, March 7, 2007 at 4:46pm

SPANISH
QUE PASA? TA BIEN? QUE LO QUE? WHAT DOES THIS MEAN. IT MEANS..WHAT HAPPENED? ARE U OKAY? QUE LO QUE IS MORE SLANG FOR HOW ARE U? Thank you for using the Jiskha Homework Help Forum. ¿Qué pasa? means "what is happening." The 2nd is probably "está ...
Wednesday, February 28, 2007 at 7:26pm

Calculus (Help)
Also I would like to know how to set this problem up in finding the answer: Find the second derivative. y= sqrt(3x+4) Thanks, P.S. I tried taking 3x+4 and squaring it to the 1/2. I thought that might've been the same, then I took the derivative of that and got 1/2(3x+4)^(-...
Wednesday, February 21, 2007 at 1:42am

math
Derivatives are usually not taught in 5th grade. That is what your question is about: Rates of change. Complete the following statements with the correct words Note: Correct spelling is important. If s(t) is a distance (or height or position) function, then s'(t) would be ...
Monday, February 19, 2007 at 10:00pm

math
how do you do fractionation? huh??/ What grade are u in?
Wednesday, February 7, 2007 at 7:19pm

Math Help Please (I Am New In This Website)
How do you multiply 367 by 72? the answer depends on your grade. Tell us what Grade in School you are in. Multiply 367 by 2; write down the answer. Multiply 367 by 70; add it to the answer above. Let us know what your answer is and someone here will give you feedback.
Saturday, January 27, 2007 at 7:55pm

Math HURRY !!!!!!!!
Please Help me Explain how ratios can be used to compare two numbers I searched the web and I didn't understand it I think this might help me but could someone help me put it in a sentence The 1st number in a ratio tells the amount thtat shows up for every 2nd number ...
Tuesday, January 23, 2007 at 7:55pm

trig
if 10 students enter projects in the art show, how many different ways can they come in 1st, 2nd, and 3rd place? would you go 10^3 OR 10TIMES 3? This is not a trig question. Neither of those answers is correct. After making one of ten possible choices for first place, there ...
Thursday, January 18, 2007 at 9:28pm

MATH
I have 2 questions the first I have narrowed down to 2 possible solutions the second has 3. What is the solution to log sub 5 (2x+3)=2 a)13/2 or b)14? The next problem f(x)= log sub 5 x what is the value of 1/25? a)square root of 2 b)-1/2 or c)1/2? Help is greatly appriciated...
Tuesday, January 16, 2007 at 12:44pm

math,correction
can someone correct this for me please. Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C ...
Tuesday, January 9, 2007 at 7:38pm

math correction
can someone correct this for me.or teach me if i'm wrong Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last...
Monday, January 8, 2007 at 1:45pm

physics
A novice pilot sets a plane's controls, thinking the plane will fly at 2.50 * 2 to the 2nd power km/h to the north. if the wind blows at 75km/h toward the southeast, what will the plane's new resultant velocity be? use graphical techniques. Are you sure you don't ...
Monday, December 25, 2006 at 6:34pm

Pre-Cal
Recursive Sequences: find a formula for: 1,1,2,3,5,8,13,21 It looks like the Fibonacci sequence. Take the first two numbers and add them to get the 3rd. take the 2nd and third to get the fourth...etc. yeah, but how would i write that into a formula?
Wednesday, December 6, 2006 at 6:45pm

science
We had two riddles to solve... 1st. I am slow when i'm young. Have six legs, large eyes, four wings, exoskeloten,looks like a helicopter when I fly and hunt over water. Unscramble these letters- cqzfnmekx 2nd. live in cold water fast strong swimmer, slim slead and colorful...
Wednesday, November 15, 2006 at 6:24pm

math
If the answer is 1-2/3m what is the question> How can you solve equations like these? 9r + 7 = 4r - 8 Need to get the r on one side. 1st- subtract 4r from the right side of the = sign. What you do to one side do to the other. 9r-4r+7=4r-4r-8. 5r+7=-8 2nd- subtract 7 from ...
Tuesday, November 14, 2006 at 11:49pm

physics in a way
If you break a raw egg, why can't you put it back together? using relations to entropy and the 2nd law of termodynamics I am not certain of any physical laws that prohibit it. The 2nd law will require that energy be added in order to make up for the increased entropy when ...
Monday, November 13, 2006 at 10:32pm

liturature
What does the term 'craft technique' mean? Example:"What is one author's craft technique found in this text that makes the writing lively?' See my answer to your question below. =) What is a story with one or more level of meanings? i need help on learning...
Wednesday, November 8, 2006 at 7:58pm

Algebra1234567890!
(-mn8)3 would it be: -m^3n^3164 (-mn8)3 = -24mn Without carrots I have no idea where your exponents are. how?I don't get this one? Is this Sandro from Mrs.Pfeiffer's class?What grade are you in? Leo is saying you need to use carets to show an exponent. As you have ...
Wednesday, November 8, 2006 at 5:44pm

math
the inverse cosine of negative 0.947 Put it in your calculator... The sequence of keys in my old ten dollar calculator is .947 +- 2nd COS Other calculators have different keys strokes. If you want to be neat, type this into a google search window: arccos(-.947) in degrees
Friday, November 3, 2006 at 10:28pm

pHYSICS
A BALL IS THROWN STRIAGHT UPWARD AND RETURMS TO THE THROWER'S HAND AFTER 3 SECONDS IN THE AIR. A SECOND BALL IS THROWN AT AN ANGLE OF 30 DEGREES WITH THE HORIZONTAL. AT WHAT SPEED MUST THE 2ND BALL BE THROWN SO THAT IT REACHES THE SAME HIEGHT AS THE ONE THORWN VERTICALLY? ...
Wednesday, November 1, 2006 at 4:53pm

Math
75 + -63 + 7( 115/ -5 + (-8)2 ) -63 is -6 to the third power and (-8)2 is (-8)to the 2nd power. I got 15913 I think that that is wrong and my calculater wouldn't fit all the numbers so I don't know how to check it! Can you please try it so I can double check answers? ...
Sunday, October 29, 2006 at 1:49pm

Noiuns
Our son's 3rd grade teacher gave out a homework assignment which had the students make a sentence for each of their spelling words and then circle the "noun" in the sentence. We received his homework back from the teacher with the words, "I, you, He", ...
Wednesday, October 25, 2006 at 7:25pm

Calculus
There is a sign that is 10ft on one side and 15ft on the other side (from the ground to the base of the sign), the billboard itself is 20ft. The painter brings a 25ft ladder in length. If the patch of ground 10ft from the base of the sign is used, at what point will the ladder...
Tuesday, October 24, 2006 at 3:26pm

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