April 23, 2014

Homework Help: 9th Grade

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9th grade
Find the perimeter of a regular pentagon with a side measure of 57 centimeters. A. 285 cm B. 649 cm C. 228 cm D. 342 cm
Thursday, January 12, 2012 at 4:42pm

9th Grade Classes
I'm not going to have lunch in hs because I had this talk with my mom and uncule saying that if i tak lunch a lot in hs i won't b able to gradute hs and it's not going to help me get into college. She also said that in one of my classes i can eat my lunch there.
Sunday, December 18, 2011 at 5:39pm

9th Grade Classes
I was reading my school district program of studies and I found this section in for high school coures. - English 9H - Integrated Algebra A - Earth Science - Global History and Geography I or H - French Beg. 1 - Orchestra (a days)/ Health (b days) - Studio Art I - African ...
Sunday, December 18, 2011 at 5:36pm

Math 9th grade
2 angles have measures x and y. The sum of the measures of the angles is 180. Write a formula to express this relationship and solve the formula for y.
Sunday, December 18, 2011 at 2:22pm

9th grade math honors
suppose t(1)=-91 and -67 is another term of an arithmetic sequence, with. What is the equation of the nth term of the sequence if there are n terms between these two?
Sunday, November 6, 2011 at 7:17pm

Spanish-9th grade
Excellent with one exception. Look at the question one more time for #5. 5. Ellos acampamos y dormimos en una tienda afuera. Now, look at your answer and see that ellos and the verbs do NOT match. Just change the verbs = acampan y duermen Sra
Saturday, November 5, 2011 at 1:29pm

To Ciara
Please do not post any more insurance questions in this forum_search_20140419. I don't believe they are 9th grade questions. They look more like ads for insurance. If you post any more you'll be banned from posting on this board.
Saturday, October 22, 2011 at 11:09pm

b(to the 9th power)x(b to the 9th power)
Wednesday, October 19, 2011 at 10:08pm

Spanish-9th grade
2. Don't forget the double negative if you begin with "No," No, no lo necesito para jugar al tenis. OR No, lo necesito para jugar al béisbol. I find #1 an odd question! Sra
Monday, October 17, 2011 at 12:08pm

Spanish-9th grade
2. .¿Necesitas el bate para jugar al tenis? No. No lo necesito para jugar al teni's. (One doesn't play tennis with a baseball bat). The other answers look OK
Monday, October 17, 2011 at 11:55am

math 9th grade
the perimeter of a rectangle is 56 inches the width of the rectangle is three-fourth of the length. Find the length of the diagonal of the rectangle. please help me!!!
Sunday, October 9, 2011 at 6:36pm

math 9th grade
the perimeter of a rectangle is 56 inches> the width of the rectangle is three-fourth of the length. Find the length of the diagonal of the rectangle. please help me!!!
Sunday, October 9, 2011 at 6:35pm

Ms. Sue why would I start in the 9th grade I'm starting now, if I do well in middle school i will make it to high school & go to easliy high level classess
Thursday, September 29, 2011 at 5:47pm

a rectangular pen is to be constructed alongside a barn using 120 feet of fencing. the barn will be used for one side of the pen. What should the dimensions of the pen be to maximize its area. ***Can not use calculus. This is a 9th grade question
Wednesday, September 28, 2011 at 3:42pm

9th grade, Biology
the jellyfish would swell swell swell and then boooom burst..... because the jellyfish would be placed in hypotonic environment....
Tuesday, September 27, 2011 at 3:38pm

Spanish-9th grade
la ardilla cafe con blanco es muy pequeña y gorda ( for animals you do not use baja or bajita only for people)Im a Spanish and English speaker, if you need more help I can help you.
Thursday, September 22, 2011 at 6:36pm

Personal Project :)
Hey I'm Kaela, 9th grade and we're required to do a mini personal project. I can't decide on what to do :/ Anyone help? I'm interested with models, runways, model photo shoots, etc etc. :)
Tuesday, August 30, 2011 at 6:00am

Math-Algebra 1
I need help with a pizzaz work sheet ASAP if i dont get this done i am on the verge of failing math and repeating 9th grade. its Pizzaz 11.10 thanks
Sunday, June 12, 2011 at 7:30pm

9th grade alegbra
an isosceles triangle has two angles that are congruent. the third angle has a measure that is 3 times the measure of either of the other two angles. Determine the degree measure of each angle. Show or explain your work
Monday, May 23, 2011 at 7:21pm

9th grade integrated algebra
a tree casts a 25 foot shadow on a sunny day if the angle of elevation from the tip of the shadow to the top of the tree 32 degrees, what is the height of the tree to the nearest thenth of a foot?
Sunday, May 22, 2011 at 6:17pm

9th grade math
the height of a ladder is 17.4 feet the bottom of the ladder is 4.5 feet from the base of the wall what is the length of the wall
Wednesday, March 30, 2011 at 2:02pm

9th grade math
the triange is 31cm, side 1 and side 2 have equal lenghts, while side 3 is one centimeter shorter than twice then length of side 1, how long is each side?
Friday, February 18, 2011 at 11:12pm

9th grade polynomials
How do you write the expression for the area of the rectangle If the length of a rectangle is two more than three times it's width,then write an expression for area of the rectangle Find the perimeter of the rectangle in problem 1.
Thursday, February 17, 2011 at 5:04pm

9th grade biology
I believe that the "lines" that you would see (the cell wall and the plasma/cell membrane) would be thicker. They may even look like someone traced them with a pen, for example.
Thursday, February 10, 2011 at 9:42pm

9th grade alegbra
two trucks left buck's trucks traveling in opposite directions. one truck traveled at a rate of 70km/h, the other at 80km/h. after how many hours were the trucks 900 km apart?
Tuesday, February 8, 2011 at 8:59pm

Physics 9th grade
Don't listen to drwls for #4. The answer is 5m/2. this is because you travel 5m in 1 second. So you jump and fall down. So it is 5m/2 and the answer is 2.5 m/s.
Saturday, January 29, 2011 at 2:02pm

9th grade
To find a sales tax of 6% on a purchase of $90.00 using the proportion method you would write the following: 6/100 = ST/$90 The calculations in this problem would give you the following: (ST)= $540.00
Tuesday, January 25, 2011 at 10:06pm

9th grade Math
In the multiplication problem A S __x__A____ M A N each letter represents a different one of the ten digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Which one of the ten digits does A represent?
Saturday, January 22, 2011 at 3:51pm

9th grade alegbra
First multiply both sides by 3/2 -5/4 = 3c + 4 Then subtract 4 from both sides. Then divide both sides by 3 You can do this yourelf
Tuesday, January 11, 2011 at 10:23am

9th grade (?) chem
Consider these three reactions happening together: CaC2(s)+ 2 1/2O2(g)-> CaCO3(s)+ CO2 (g) CO2 (g) -> C(s) + O2(g) Ca(s) +2C(s) -> CaC2(s) The net reaction is Ca(s) + C(s) + (3/2)O2 (g) -> CaCO3 (s) Add or subtract the three heats of formation, ^H, as appropriate. ...
Friday, December 17, 2010 at 12:28pm

Biology 9th grade
definition: The ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes. examples: in summer after exercising, you are hot, right? sweating cools off your body for your body to maintain equal internal temperatures.
Wednesday, December 15, 2010 at 7:45pm

9th grade
the atmosphere..? a. creates tides b. has no effect on heat gain or loss c. allows heat to escape quickly in order to cool the planet d. keeps heat from escaping too quiclkly into space.
Sunday, December 12, 2010 at 1:23pm

9th grade
2x + (2x - 1) = 31 4x - 1 = 31 4x = 32 x = 8 The sides must be 8, 8, and 15
Friday, December 10, 2010 at 8:40pm

9th grade
the perimeter of a triangle is 31 cm. sides #1 and #2 have epual length, while side #3 is one centimeter shorter than twice the length of side #1. how long is each side
Friday, December 10, 2010 at 8:19pm

9th grade
The roller coaster will fall down? What do you mean here. What exactly is the right amount of mass? Is there a too little mass? Maybe too much mass prevents the car from being towed up the first high hill to start the rolling process. I have no idea what you are asking.
Friday, December 10, 2010 at 10:57am

9th grade biology
Indicate your subject in the "School Subject" box, so those with expertise in the area will respond to the question. Neurotransmitters cross the synapse to effect the subsequent neuron. The process is called neurotransmission. Chemicals that affect this would have ...
Thursday, December 2, 2010 at 4:52pm

9th grade geography
What are some negative facts for the Montane Cordillera. Also I am looking for some positive and negative facts for the Prairie Ecozone and Mixed Wood Plain ecozone. Need help please thank you!
Saturday, November 27, 2010 at 3:43pm

9th grade physics
A sled of mass 50 kg is pulled along a snow-covered, flat surface with a force of 200 N. the friction force acting on the sled is 49 N. what is the acceleration?
Wednesday, November 17, 2010 at 6:18pm

9th grade Science
the longest distance in a field and track event is the 10km run. the record holder for the women's 10km run is Wang Junxia of china. Assuming that she ran a distance of 10.0 km with an average f 5.644 m/s, what was her time?
Tuesday, November 16, 2010 at 8:01pm

9th grade algebra
A campsite charges 8$ per day, for the site rental and 4$ for parking. The total campsite charge C( in dollars) is given by C=8d+4 where d is the number of days that the site is rented. complete the table and graph the equation. *Table: D= 0 1 23 C(d)= BLANK How could I fill ...
Tuesday, November 16, 2010 at 4:17pm

9th grade algebra math hw, help?(:
The table below shows the cost of renting a bike for a given amount of time, find the rate of change in cost with respect to time. Table: Time: 1.75, 4, 7. Cost( Dollars)4.375, 10, 17.5 Could one of the tutors please explain to me how to this? Thanks :) -Allyson
Tuesday, November 16, 2010 at 3:15pm

9th grade algebra
A: force= constant*distance constant= force/distance= 32/4 in pounds/inch B: Force= (32/4)*20
Monday, November 15, 2010 at 3:34pm

9th grade algebra
no, the greatest rate was 2001-2001 the least rate was 2003-2004, rate was -2/per year.
Monday, November 15, 2010 at 3:02pm

9th grade
you multiply the term to each term inside the parenthesis and then combine them,, for example, 3(x+2y+2) multiply 3 to each term: 3*x + 3*(2y) + 3*2 3x + 6y + 6 hope this helps. :)
Thursday, November 11, 2010 at 9:49pm

9th grade
You have now asked this question 3 times. Go and read the links I gave you -- or better yet, read the play. Do not post the same question again, please.
Thursday, November 11, 2010 at 8:37pm

9th grade Social Studies
i also have problems studying and understanding social studies. i don't know what to do my grades are way low. can you please give me some tips and ideas on how i can work on it?
Wednesday, November 10, 2010 at 5:48pm

9th grade
Much of Europe is close to a sea coast. This enabled settlers to sail to this area and also provided fish to eat. The peninsulas also provided some protection from land invasions.
Sunday, November 7, 2010 at 7:32pm

9th grade
what might be the efect of the following a)the covering tissue of the cappilaries is much thicker b)air sack tissue is much thicker
Wednesday, November 3, 2010 at 11:29pm

9th grade
A bowler rolls a 5 kg bowling ball down a magical frictionless bowling alley. The ball accelerates at an average rate of 2 m/s^2. How much force did the bowler apply to the ball?
Wednesday, November 3, 2010 at 7:16pm

9th grade MATH
Dfrom point a to point b=215miles VELOCITYaverage=change in distance/change in time =215miles/4.5hrs Approx.=47.8 or 48mph
Sunday, October 31, 2010 at 7:31pm

9th grade MATH
Dfrom point a to point b=215miles VELOCITYaverage=change in distance/change in time =215miles/4.5hrs Approx.=47.8 or 48mph
Sunday, October 31, 2010 at 7:31pm

9th grade math
suppose u invested some money at 8% simple interest for five years. if u received $500 in interest, how much money did u invest?
Tuesday, October 26, 2010 at 8:37pm

9th grade
A crossroads for trade is a place where several long distance roads cross. Indiana, for instance, calls itself the "Crossroads of America." An ancient crossroads is the Middle East that received traders from Africa and Europe on their way to eastern Asia.
Sunday, October 24, 2010 at 12:56pm

math needs help
If you call the School Subject 9th grade a teacher to help you with math may never read your post. Please always identify the SCHOOL SUBJECT carefully so the right volunteer teacher will read it. Sra (aka Mme)
Saturday, October 16, 2010 at 8:34pm

9th grade Deductive Reasoning Math
Given: Angle A and Angle C are complementary to Angle B. Conclusion: Angle is congruent to Angle C. Determine whether each conclusion is valid based on the true conditional given. If not, write invalid. Explain your reasoning.
Monday, October 11, 2010 at 7:58pm

9th grade MATH
14+2y=78 -14 -14 __________ 2y=64 _ _ 2 2 y=32
Wednesday, September 29, 2010 at 8:28pm

MATH? needs help
Calling the School Subject "9th grade" may not get the right volunteer teacher reading your post. Please always try for the correct school subject. This looks like math to me and it is definitely NOT my area! Sra
Sunday, September 26, 2010 at 8:47pm

9th grade
how can a egg be a chemical change? How can an antacid tablet be a physical and a chemical change?
Thursday, September 23, 2010 at 4:50pm

9th grade
5y-3/5=4/5 5y - 3/5 + 3/5 = 4/5 + 3/5 5y = 7/5 y = (7/5)/5 y = (7/5)*(1/5) y = 7/25
Wednesday, September 22, 2010 at 6:16pm

9th grade
Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above my answer a)rational numbers
Monday, September 20, 2010 at 2:53pm

9th grade
7/9 = ?/45 Divide: 45/9 = 5 Multiply: 7 * 5 = 35 7/9 = 35/45 Follow that pattern and try to solve the second problem. I'll be glad to check your answer.
Sunday, September 19, 2010 at 4:22pm

9th grade
find the domain and the range of the relation age of person 65,36,36,29 books to read 42,37,37,17
Thursday, September 16, 2010 at 8:47pm

Mathmatics.. 9th grade
Didn't you wrote this a while back? <<Last question, I swear! Math! - Not putting it, Wednesday, September 15, 2010 at 4:38pm>>
Wednesday, September 15, 2010 at 5:33pm

Mathmatics.. 9th grade
Your family is driving 188 miles to visit a family member, your father drives 63 miles then stops for a break, a) How many more miles are left in the trip, B) How long will the remainder of the trip take? *It says to label a variable, write an equation and solve for part b. ...
Wednesday, September 15, 2010 at 5:18pm

9th grade
7m-3m-6=6 4m - 6 = 6 4m - 6 + 6 = 6 + 6 4m = 12 m = 12/4 m = 3
Monday, September 13, 2010 at 9:05pm

9th grade math
if a man mixes 12 lbs. of peanuts thats $1.25 a lbs. with a pound of cashews at $1.80 a lbs. how many pounds of cashew do you need to make a $1.50 a lbs. mixture explain in words and numbers
Monday, September 13, 2010 at 8:12pm

9th grade science
well there are three spheres in earth: the atmosphere, lithmosphere, and hydrosphere. what it means to overlap each other just means that the lithmosphere(ground, soil) is at the bottom and hydrospher(water)and atmosphere(air) is over lapping it. And all of these are biosphere...
Saturday, September 11, 2010 at 10:46pm

9th Grade Biology
Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
Friday, September 10, 2010 at 12:11am

9th grade math
x to the 2nd power if x = 3/4 how do you find 3/4th to the 2nd power? 3/4th times 3/4th right? so the answer would be 9/16ths.. right?
Thursday, September 9, 2010 at 5:02pm

9th grade science
well there are three spheres in earth: the atmosphere, lithmosphere, and hydrosphere. what it means to overlap each other just means that the lithmosphere(ground, soil) is at the bottom and hydrospher(water)and atmosphere(air) is over lapping it. And all of these are biosphere
Wednesday, September 8, 2010 at 5:10pm

9th grade Algebra
the population of Concord in 1980 was 400 greater than half the population Euclid. The sum of the two populations was 29,600 less than twice the population of Euclid. What was the population of each city in 1980?
Tuesday, September 7, 2010 at 6:17pm

9th grade
I am woking on Patterns and Inductive reasoning. I need help on numbers 14-16. Find the next two sequence. 14. Martha, Abigail, Martha, Dolley... 15. Geroge, Thomas, Abe, Alexander.... 16.Aquarius, Pisces, Aries, Taurus.... Please help me!
Thursday, August 26, 2010 at 3:39pm

9th grade
A person standing on Mars would weigh 38% of his earth weight. What is the Mars weight of a person with an earth weight of 55 kilograms?
Wednesday, August 25, 2010 at 11:43am

9th grade
What is the product of 23 and -27? ----------------------------------------​----------------------------------------​ -621 -521 521 621
Friday, August 20, 2010 at 12:11pm

9th grade
what's the relationship between the input and output? 0->3 (add 3+0) 1->5 (add 3+1) 2->7 (add 3+2) 3->9 (add 3+3) so...
Thursday, August 12, 2010 at 8:04pm

9th grade
You want to add M grams of water to 2 grams of .65 solution? amount of iodine in final= amount of iodine in initial .42(M+2)=.65(2) solve for M.
Monday, July 26, 2010 at 4:40pm

9th grade
How many grams of water must be added to 2 grams of a 65% iodine solution in order to produce a 42% iodine solution? Round your answer to the nearest tenth
Monday, July 26, 2010 at 1:34pm

Math, needs help
If you title this MATH for the School Subject, you will get a proper volunteer teacher to answer your post. At leasr, the School Subject is NOT 9th grade. Sra
Sunday, May 23, 2010 at 8:07pm

9th grade
Let's set up a proportion and let x = the number of cards need for a 100-story house. 83/27,000 = 100/x Cross multiply: 83x = 2,700,000 x = 32,530.1205 = 32,531
Monday, May 17, 2010 at 4:24pm

9th grade
bryan berg built an 83-story house of cards in 1995. he used 27,000 playing cards to accomplish this feat. at this same rate, about how many cards would it take to build a 100-story house of cards?
Monday, May 17, 2010 at 4:18pm

9th grade
25c^2 - 40c - 9 you just FOIL it! (first, outside, inside, last) multiply it over in an arc shape....the first number of the first () times the first number of the second (), and so on and so forth!
Tuesday, May 4, 2010 at 9:09pm

Math 9th grade
x^2 + 5x +6/ x^2 - 3x -10 How do I do this? Is it asking me to divide? The answer choices are as following: A)x + 3/ x - 5 , x ≠ 5 B)x + 3/ x - 5 , x ≠ -2, 5 C)x2 + 5x + 6/ x - 5 , x ≠ 5 D)x2 + 5x + 6/ x - 5 , x ≠ -2, 5
Tuesday, May 4, 2010 at 8:02pm

History/9th grade
I am trying to understand and I hope you can help me. I just want some more explaintion about the great depression. Why do people call it a leveler? I heard some kids over at the table next to me at lunch today. Like I said I just want to know. I am studing about presidents ...
Tuesday, May 4, 2010 at 6:08pm

9th grade algebra
(0.95)^4 x 35,000 = 0.8145 * 35,000 = $ _____
Tuesday, May 4, 2010 at 5:42pm

9th grade - Civics
When was the last time Washington D.C.'s Electoral College votes went to a candidate form the Republican Party? How many Electoral College votes do they have?
Wednesday, April 28, 2010 at 7:26pm

9th grade Algebra
8/12 3/12 1/12 12/12=1
Monday, April 26, 2010 at 3:44pm

9th grade Algebra
1(2/3) + 2(1/4) + 3(1/12) = 8/12 + 6/12 + 3/12 = 17/12 Divide 12 into 17.
Monday, April 26, 2010 at 2:47pm

9th Grade Social Studies
Had the world gone along with Wilson’s plan to remove economic barriers between nations, what kind of place would the world be? Would it be better? Worse? How would you answer this question?
Friday, April 23, 2010 at 7:18pm

9th grade
Given Circle D, find the length of segment DB if the measure of segment DE = 25 units and the measure of segment BC = 24 units. Explain your solution.
Thursday, April 22, 2010 at 1:56pm

9th grade
james accidentally spills 2 containers, mixing their contents. he checks and finds that 1 contains salt crystals while the other contained powdered sand. describe a method that he might use to separate the 2 mixtures without losing any of either mixture.
Wednesday, April 21, 2010 at 10:44pm

9th grade
Nice of you drwls. Are you solving for p? Or are you expanding? Assuming you are expanding the equation: p^3+8p^2-7p-56 Assuming you are solving for p, and the entire equation is equal to zero: p=squareroot(7), p=-8
Wednesday, April 21, 2010 at 9:40pm

9th grade (math)
Oh Puh-leeze​ifying/foilmethod/ We'll be happy to critique your work. Don't just post your problems, under different names, and expect us to do them all. And while you are at it, post the subject and not the grade level
Saturday, April 17, 2010 at 7:22am

9th grade
(2x-1)(x+2) =2x(x+2)-1(x+2) =2x^2+4x-x+2 =2x^2+3x+2
Saturday, April 17, 2010 at 2:50am

science, 7th,6th,8th,9th grade
Less time, less people to operate machines, and less cost to company due to training the different people to manage the job.
Friday, April 16, 2010 at 1:28am

Algebra - 9th grade
I'll do for x equation by 4 ... 2x + y = 28 2x = 28-y x = (28-y)/2 you do for y.
Tuesday, April 13, 2010 at 9:52pm

9th grade
Guru's formalities aside, z+xyz=w factor z. z(1+xy)=w divide by z (1+xy)=w/z subtract 1. xy=(w/z)-1 divide by y x=(w/yz)-(1/y) And that's your answer! :)
Thursday, April 8, 2010 at 12:20pm

9th grade acc. algebra
how do you do this? this is the full question and all info: "A line with a slope of -3 passes through the point (k,4). Find the y-intercept of the line in terms of k." I would like to know how to do this along with the answer so i can know im doing it right please!!
Tuesday, April 6, 2010 at 4:43pm

9th grade chemistry
lol well have you seen my name?? i cant do this... i figured out other equations but i dont know why i cant figure this one out... oh well i just ask other people to help me because i need someone to show me how to do it right infront of me but thank you for all of your help...
Monday, March 29, 2010 at 6:07pm

9th grade chemistry
you dont even need any equation to do this if you know the mass, the no of moles can be calculated from there i.e. no of moles=mass of sub/molar mass from there if the volume is given so you will be able to calculate the solubility which is equals to molar concentration
Monday, March 29, 2010 at 5:44pm

9th grade
given that a(-1,8) ,b(2,4) and if the line y=4 is the axis of symmetry of triangle abc find that triangle abc is an isosceles triangle,calculate the area of triangle abc,calculate the perpendicular distance from a to bc
Tuesday, March 23, 2010 at 8:35am

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