Posts by jerry
Total # Posts: 396
Find the GCF -30a^4, 5a^5
Factor completely 112r^2+392rp+343p^2 Please help
How do I calcualte and what would my titration curve look like for a 25mL 0.1M H3PO4 solution titrated with 0.1M NaOh. The problem involves Ka and pKa values which i have, not sure how to use this information and make a graph out of it?
solve for x x+1/x=-7/x-12
please help! The width of a rectangle is 4ft less than the length. The area is 12 ft sq. Find the length and the width.
give exact and approximate solutions to three decimal places (x-5)sq = 18
In my experiment we produced KAl(SO4)2.12H2O
I conducted the synthesis of an Alum experiment in my lab last week and I'm working on my report. I'm almost done expect I don't know how one could increase the yield of the product (alum crystal)? And also what is the point of adding sulfuric acid? Can anyone help...
what is x squared plus 12x plus 11 equals
state the slope of line given the equation y=2/3x+6
a horizontal force of 95 N is applied to 60 kg crate on rough , level surface. if crate accelerates at 1.20 m/s2 , what is magnitude of the force of kinetic friction acting on the crate?
Help! g/r+g - g/r-g
How do you do this? y-5/y+2 = 1/7
A grocer gets food from three suppliers. They deliver every 5 days, 6 days and 7 days, respectively. All three came today. When will they all deliver on the same day again?
What is the division rule
write the missing number in each fraction so that the fraction belongs in the box. write one more fraction that can go in the box.
Describe what the graph of interval [-4,10] looks like.
Need to create a poster describing the persuasive technique bandwagon. How do I do it?
Working alone it takes Jerry 9 hrs to mop a warehouse. Ruth can mop the same warehouse in 10 hrs. If they worked together how long would it take them?
product of 45% and some number
Twenty-seven students averages 70 on their midterm. Could 21 of them have scored about 90?
Use the given information to determine the exact trigonometric value of csc(theta) if cot(theta)=-8 and 3pi/2 < theta < 2pi
then you should by one lol
For the reaction: H2(g) + I2(g) 2HI(g) , Kc = 12.3 at some temperature T. If [H2] = [I2] = [HI] = 3.21 x 10-3 M at this temperature, which one of the following statements is true? 1. ) Not enough information is given to answer the question. 2. ) The concentration of HI will ...
What are some of the health problems associated with undernutrition? Explain the cycle of malnutrition. Who does it impact? Explain your answer.
change in potential energy divided by the power. ( 1 W = 1 J/s) Initial potential energy= mass* g* height = mass * g*0 = 0 Final potential energy = mass* g* 16.0 finf diffence between final and initial and divide by Power. Answer will be in seconds(s)
How long will it take a 1920 W motor to lift a 285 kg piano to a sixth-story window 16.0 m above?
What are some of the health problems associated with anorexia nervosa, bulimia nervosa, and binge-eating disorder? Explain, from a physiological standpoint, how eating disorders may lead to health problems. Give at least three examples to support your answer.
Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour, and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office manager. The box ...
what does homeostasis means?
a positive point charge q sits at the center of a hollow spherical shell. The shell, with radius R and negligible thickness, has net charge -2q. find an expression for the for the electric field strength (a) inside the sphere, r<R (b) outside the sphere, r>R. in what ...
Find the sum of all n exterior angles of a n-sided convex polygon, where n is any positive integer larger than 3. Show all the working details and reasons. I already know that the total is 360 degrees, but how would I use mathematical proof to figure it out?
Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test(high scores mean more anxiety) The scores are as follows.
Do students at various colleges differ in how sociable they are? Twenty-Five students were randomly selected from each of three colleges in a particular region and were asked to report on the amount of the time they spent socializing each day with other students. The results ...
Twenty students randomly assigned to an experimental group receive an instructional program: 30 in a control group do not. After 6 months, both groups are tested on their knowledge. The experimental group has a mean of 38 on the test(with an estimated population standard ...
Evolutionary theories often emphasize that humans have adapted to their physical environment. One such theory hypothesizes that people should spontaneously follow a 24- hour cycle of sleeping and walking- even if they are not exposed to the usual pattern of sunlight. To test ...
Econ Please Help
USE THE EXPENDITURE EQUATION FOR GDP TO FIND VALUES FOR EACH SECTOR FOR YEARS 1929 AND 1933
What is an example of a specific mixture that could be separated with simple distillation and a specific mixture for which only fractional distillation would be used? I think a methanol-water mixture could be done with simple distillation, since they have b.p which are further...
compare and contrast triat theory
1)what equation represents a line that is perpendicular to the line whose equation is -2y=3x+7? 2)if the measures of the angles of a triangle are reprsented by 2x, 3x-15, and 7x+15, is the triangle an acute triangle?
Who invented compass
CHEM help needed
how do i find the Volume of Atoms within Unit Cell in(Å^3)? I think it has something to do with avogadros number but i do not know exactly...so far i know that the volume of the unit cell is 47.045881 Å^3. PLEASE HELP
The partial pressure of water above a solution of water and a nonvolatile solute at 25oC is 19.2 mm Hg. What is the mole fraction of the solute please help....I really don't know how I am supposed to solve this question. I know that Partial pressure of the solvent above a ...
CHEM please HELP
CHEM please HELP
The boiling point elevation of a solution consisting of 2.12 g of a nonvolatile solute in 97.4 g of benzene is 0.6602 oC. What is the molecular weight of the unknown solute? i have no idea how to solve this question
liquid methanol, CH3OH is being prepared to be poured into a beaker of water. (THERE CAN BE MORE THAN ONE ANSWER FOR Q1-3) 1) What intermolecular forces are broken in the methanol when these substances are mixed? -hydrogen-bonding -dispersion forces -dipole-dipole interactions...
Sequential and Selection Process Control Structure
art help needed
1 false 2 true 3 true 4 false
A 0.03 mol sample of NH4NO3(s) is placed in a 1 L evacuated flask, which is then sealed and heated. The NH4NO3(s) decomposes completely according to the balanced equation above. The total pressure in the flask measured at 400 K is closest to which of the following?
?what was signed in 1215,required the king to follow the same laws as other english people?
how dud sqyabti, the interpreter for massasoit and the pilgrims. learn english
12th grade chemistry
A piece of iron wire weighs 2.225g. It is dissolved in acid, which oxidizes the iron to iron(II), and made up to 250 mL. A 25mL sample required 31.0 mL of a 0.0185mol/L solution of potassium dichromate. Calculate the percentage of iron in the wire.
A hardened criminal and checkoutlions
A 156.5 g piece of stainless steel was heated to 510 C and quickly added to 25.11 g of ice at -30 C in a well-insulated flask that was immediately sealed. What will be the final temperature of the system if there is no loss of energy to the surroundings? How much liquid will ...
A 156.5 g piece of stainless steel was heated to 510 C and quickly added to 25.11 g of ice at -30 C in a well-insulated flask that was immediately sealed. What will be the final temperature of the system if there is no loss of energy to the surroundings? Does anyone know how I...
feliz yo cumpleanos estoy cuando es mi
I did a lab in chemistry in which 15-mL jumbo Beral pipets with acetone was heated in boiling water until all of the liquid evaporated. Then the pipets were placed into room temperature water so that the evaporated liquid turns into condensed vapor. The molar mass was later ...
can not unscramble this math word sserwmt
can not unscramble this math word mmttuoaeive
What does copper react with when heated and what is formed as a result? (When you put copper underneath a fire, would the copper be reacting with oxygen or carbon dioxide?)
The answer is 1:30 AM Thank You
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling 40 miles per hour. Train B is traveling 48 miles an hour. Train A passes a station at 10:25 pm. If train B passes the same station at 10:55 pm, at what time will train B catch up with ...
In 1992, the life expectancy of males in a certain country was 69.8 years. In 1999, it was 72.6 years. Let E represent life expectancy in year t, and let t represent the numbers of years since 1992.
whata the period block and group in which elements with the following electron configuration is located? a) [Ne] 3s^23p^4 b) [Kr] 4d^105s^25p^2 c) [Xe] 4f^145d^106s^26p^5
SO how many mins. are in 900 s
thank you for the website it really helped me on my homework
an acute angle has how many degrees in it and how many degrees are in an obtuse angle
the square root of 1000 divided by 2 then multiplied by 100 to the fith power then minus 6 then timed by two equals?
what did john f Kennedy do as president?
how do I work a exponential and logarithmic function on a TI83?
a metallic object is given a positive charge by induction, does the mass change (increase, decrease, same)? what if given a negative charge instead? I think protons has more mass so mass increases and the opposite is true for electrons. Am I right?
y = ax + b, if the slope of the line is 1, what is the acute angle between the line and the x-axis?
a new parking lothas spaces for 450 cars. the ratio of spaces for fullsized cars to compact cars is 11 to 4. how many spaces are for full-sized cars? how many spaces for compact cars?
Social Studies: Jim Crow Laws
How did Jim Crow laws affect the economy?
I chose raw carrots as my vegetable. According to the chart, the energy gained compared to the energy lost was 10% gained to 90% lost. I would say this is clear evidence that humans need to consume foods closer to the bottom of the food chain so a higher amount of the original...
how do I punctuate this sentence? The goose bit the mailman on the leg.
How many 3by3 tile would it take to install a 12by18 floor.
sqrt of x-1=x-3 square both sides. Gather terms, factor or use the quadratic equation. I will be happy to critique your work.
(2x^sqrt of 2x)(3^sqrt of 5x)
A current of 2.50 A is passed through a solution containing Cu+2 ions for 4.00 hours. Calculate the mass of Cu atoms that form at the cathode. Charge= current*time Convert the charge in coulombs to number of electrons. Since it takes two electrons per Cu+2 atom, divide the ...
How much electric charge is needed to produce 1.000kg of Na metal from the Na+ ions in NaCl? You need one electron per atom. How many atoms are present in 1kg of Na? Use avagradros number. To change to coulombs, remember that 1 electron= 1.6E-19C
unscramble these 14 letters to make two words--tkngasprureime
unscramble 14 letters to make two words
PLEASE HELP SOLVE RIDDLE
1,3,4,6 = 24 USE NUMBERS ONCE YOU CAN + / * OR -.
human reason wedded to truth Is this a question? Are we supposed to somehow metaphysically know the question associated with this? Do you have any thinking on this matter? The "truth" is "human" and "reason" are very seldom associated much less &...
Describe the climate and physical characteristics of that biome and the types of organisms that live within it. Give examples of and describe symbiotic relationships between those organisms. Be sure to include at least one example from each of the following: parasitism, ...
For a dried flower arrangement, customers can choose from 2 types of containers, 3 sample designs, and 2 sizes. How many different arrangments does the shop offer? please post if possible in the by midnight tonight. Thank you
I'm in a Grade 12 Data Management Course. The Current unit is Factorials and Permutations. I'm having a trouble with this question. The answer is suppose to be 120 but I don't know how. How many different ways can 6 people be seated at a round table? Explain your ...
I need to know how to calculate what percentage of a number is to another. let me make that clearer, 35 is what percent of 48? how is that calculated? What you are asking is this: 35 is to 45 as x is to 100 or 35/48=x/100 solve for x x=.729 Now to get % you must multiply x by ...
can not unscramble this math word mmttuoaeive