Sunday
December 4, 2016

# Posts by riley

Total # Posts: 316

Chemistry
A sample of Chlorine occupies 8.50 L at 80.0 C and 740 mm Hg. What volume will Chlorine occupy at STP?
November 27, 2016

Algebra
Ken has recently started saving his spare change. In his piggy bank, he has \$1.65 that consists of nickels and dimes. The number of nickels is one more than two times the number of dimes. Find how many of each coin he has
November 27, 2016

Algebra
Ken has recently started saving his spare change. In his piggy bank, he has \$1.65 that consists of nickels and dimes. The number of nickels is one more than two times the number of dimes. Find how many of each coin he has
November 27, 2016

Finance
You have been hired as a consultant for Pristine Urban-Tech Zither, Inc. (PUTZ), manufacturers of fine zithers. The market for zithers is growing quickly. The company bought some land three years ago for \$1.30 million in anticipation of using it as a toxic waste dump site but...
October 26, 2016

STATISTICS
Suppose that a researcher is interested in estimating the mean systolic blood pressure, , of executives of major corporations. He plans to use the blood pressures of a random sample of executives of major corporations to estimate . Assuming that the standard deviation of the ...
October 24, 2016

STATISTICS
A study of college football games shows that the number of holding penalties assessed has a mean of penalties per game and a standard deviation of penalties per game. What is the probability that, for a sample of college games to be played next week, the mean number of holding...
October 24, 2016

History
What was the primary purpose of the Constitutional convention of 1787? A. Outlaw slavery In both the north and south B. Place taxes on the imports and exports C. Revise the articles of confederation D. Reduce the power of the federal government
October 17, 2016

algebra
A wire 20 cm long is cut into two pieces. The longer piece is 4 cm longer than the shorter piece.
October 5, 2016

stats
Anita's a fast food chain specializing in hotdogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant so it can make decisions reguarding possible construction of the in-store play areas.the attendance of its mascot Stacy at...
October 1, 2016

Stats
The workers union at a certain university is quite strong. About 94% of all workers employed by the university belong to the workers union. Recently, the workers went on strike and now a local TV station plans to interview a sample of 20 workers ,chosen at random to get their ...
October 1, 2016

Algebra
whats the answers to the "why are mr. and mrs. number so happy
September 22, 2016

Government
The President
September 21, 2016

Math
The dimensions or a fish tank ( rectangular prism ) are x, 3x+2, and 2x-4. Express the volume of the fish tank as a simplified polynomial.
September 1, 2016

Social studies
I don't know help
August 25, 2016

Social studies
Which form of government gives independent rights and policy making decisions to smaller regions of the country which cannot be overridden by the main government
August 25, 2016

Someone please help me with this!!! Ray and Kelsey have summer internships at an engineering firm. As part of their internship, they get to assist in the planning of a brand new roller coaster. For this assignment, you help Ray and Kelsey as they tackle the math behind some ...
April 26, 2016

If one side of a triangle is 54 cm and the other is 35 cm what is the third side? Two sides have to be longer than the other so I think it is 54 cm
April 18, 2016

Language Arts
Why, who makes much of a miracle? As to me I know of nothing else but miracles, Whether I walk the streets of Manhattan, Or dart my sight over the roofs of houses toward the sky, Or wade with naked feet along the beach just in the edge of the water, Or stand under trees in the...
February 27, 2016

What is the probability of rolling a cube?
February 15, 2016

civics
theirs popular sovereignty, limited government,checks and balances, federalism and finally separation of power
February 10, 2016

civics
Federal courts may declare illegal any action violating the Constitution. -Will this be the principle of Rule of Law
February 10, 2016

Algebra 2
Write the equation of a trend line. {(-10, 3), (-5, 1), (-1, -4), (3, -7), (12, -12)} How do I do this problem?
February 4, 2016

science
if your doing an experiment about if sugar or salt will caused fermentation within the yeast.and you have Cup 1 with 2 cup of warm water ;2tsp of yeast and 2tsp of salt. Than cup 2 contains warm 2 cups of water:2tsp of salt and 2tsp of yeast Finally cup 3( this is the control ...
January 24, 2016

Math
Two railroad tracks cross each other if the measure of angle 1 is 3 times the measure of angle 2, what are the measures of angles 1,2,3, and 4? Explain and show your work
January 24, 2016

science
and the experimental group will be the 2 other cups 1 and 2 right?
January 22, 2016

science
if your doing an experiment about if sugar or salt will caused fermentation within the yeast.and you have Cup 1 with warm water ;yeast and sugar than cup 2 contains warm water:salt and yeast Finally cup 3 you have warm water and yeast will cup 3 be the control group or will ...
January 22, 2016

English
Is 4 prepositional and 5 gerund or prepositional? I got that 13. was A 12 the underlined word was /many/ 13. B
January 21, 2016

English
#6 C then? #7 direct object #10 A #12 many is the underlined word #13 A
January 21, 2016

English
I need some help with the answers to these questions, (mainly to see if I'm correct, where I'm wrong and WHY I'm wrong) 1. What is the verb mood of the sentence below? Wear your coat when you are in the school indicative mood imperative mood ***my answer infinitive...
January 21, 2016

Conversion
an olympic athlete can run 110 years in 10 seconds. How fast in miles per hour can the athlete run?
January 12, 2016

math
Lydia wrote 4.5 pages on her science report in 1 hr.What was her writing rate in pages per minute?
January 12, 2016

Algebra 1 Solving Systems Using Elimination
What is the solution of the system? y = -3x 3x + 2y = 6 (2, 6) (-1, 3) (-2, 6) (1.5, -4.5)
December 28, 2015

Algebra 1
Write an equation in point-slope form for the line through the given point with the given slope 5, 2); m = 3 y + 2 = 3(x - 5) y + 2 = 3x - 5 y - 2 = 3(x + 5) y - 2 = 3(x - 5)
December 28, 2015

Math
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 3x + 10 y is less than negative 3 over 4 times x minus 1 Part A: Describe the graph of the system, including shading and the types of lines graphed...
December 19, 2015

math
Scientists randomly caught 30 fruit bats at an orchard. They tagged the fruit  bats and then released them. Several weeks later, they captured 20 fruit bats&...
December 14, 2015

Algebra 2 (Math)
What is the vertex form of the equation? y = -x^2 + 12x - 4. I have no clue how to do this.
December 14, 2015

science
how is trna made and how dose it help us make proteins
December 10, 2015

math
Charlie can type faster than any of his classmates. He took a test that showed he can type 700 words in 5 minutes . How many words can he type per minute
December 6, 2015

Chemistry
The theoretical yield of a reaction is the amount of product obtained if the limiting reactant is completely converted to product. Consider the reaction: P4(s) + 6 Cl2(g) → 4 PCl3(l) If 19.47 g P4 is mixed with 6.85 g Cl2, calculate the theoretical yield (g) of PCl3 ...
November 26, 2015

Math
I'm sorry, but what kind of question is this? Is it a true or false, solve, ect?.
April 29, 2015

math
On a centimeter dot grid, draw all possible rectangles with a perimeter of 14 cm and sides whose lengths are whole centimeters.
April 1, 2015

Art
Yesss! 💯 correct
March 11, 2015

Art
Thx homie i got them right :)
March 9, 2015

History
How did Squanto help the colonists in New England
January 28, 2015

History
Which part of North America did LaSalle claim for France in1684
January 28, 2015

History
In what present day states did the Dutch establish new Netherland?
January 28, 2015

History
What were the differences between primary and secondary resources in 1684?
January 28, 2015

Calc
A beach ball is deflating at a constant rate of 10 cubic centimeters per second. When the volume of the ball is 256/3(pi) cubic centimeters, what is the rate of change of the surface area? (S=4(pi)r^2 and V=4/3(pi)r^3)
December 22, 2014

Chem
No clue what to do part of my lab
November 11, 2014

Chem
Find the exerted pressure in kpa Volume=0.05L Mass=5 Atmospheric pressure =764mm Hg Temperature=21degree Celsius Cross sectional area plunger 5.3 x10-4
November 11, 2014

Algebra
X-3y=9 2x-y=-2
October 21, 2014

c programming
a student designed a program to accept the age of an employee and then compute the employees retirement year and display the same in a statement on the screen required. a) write out the pseudo-code for the program above b) write the algorithm, c) flowchart d) write the program...
October 14, 2014

Math
This is a bonus question. If the modes of a problem are13 and15 and the mean and the median are 15 how do you come up with the other numbers
September 30, 2014

English/language arts
Thank you!
September 24, 2014

English/language arts
That orange deposit
September 24, 2014

English/language arts
What is the complete subject in the sentence That orange deposit on the outside surface is called rust.
September 24, 2014

Algebra
A new set of car tires has a tread depth of 8 millileters. The tread depth decreases 0.12 millimeter per thousand miles driven. Write an equation that gives the tread depth as a function of the distance driven. Then predict what distance the tread depth will be 2 millimeters
September 23, 2014

Physics
Two forces are applied to a car in an effort to move it, as shown in the following figure (cannot attach picture), where F1 = 416 N, 10 degrees to the left of north and F2 = 356 N, 30 degrees to the right of north. What is the sum of these two forces acting on the car? ...
September 12, 2014

Science!
Which of the following is a valid reason why a scientist might regect a scientific theory?
September 11, 2014

Civics
Explain how federal income taxes support the economy and benefit the common good. I have to have at least one well-developed paragraph, and this question is worth 10 points which is why I need help!!
June 11, 2014

Math
Which of the following transformations will never produce a congruent figure? A. rotation B. reflection C. translation D. dilation <------
May 22, 2014

Math
1)Let AB be the directed line segment beginning at point A(1 , 1) and ending at point B(-4 , 6). Find the point P on the line segment that partitions the line segment into the segments AP and PB at a ratio of 5:1. A)(-3 1/6,5 1/6) B)(1/6,1 5/6) <---- C)(-3 4/5,31) D)(-2 1/6...
May 22, 2014

math
1.00
May 19, 2014

Math
Use experimental probability to make a prediction. John made 35 free throws and missed 15. Predict the number of free throws he will make in the next 100 tries. A. 70 B. 85 C. 55 D. 45
May 2, 2014

Physics
A rope is used to pull a 5.19 kg block at constant speed 3.38 m along a horizontal floor. The force on the block from the rope is 3.23 N and directed 20.0° above the horizontal. What are (a) the work done by the rope's force, (b) the increase in thermal energy of the ...
March 10, 2014

Physics
A 540 g block is released from rest at height h0 above a vertical spring with spring constant k = 320 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 19.8 cm. How much work is done (a) by the block on the spring and (b...
March 10, 2014

Physics
Okay. So I got 2356J is that right?
February 3, 2014

Physics
Damon, this is my last question for today for you. Thanks for all your help. A gas is at an initial pressure of 1.24104 Pa and occupies a volume of 0.28 m3. The (slow) addition of 23,570 cal of heat to the system causes it to expand in an isobaric manner to a volume of 0.47 m3...
February 3, 2014

Physics
An ideal monatomic gas goes from p1 = 180 atm and V1 = 45 m3 to p2 and V2 through an adiabatic process. If p2 = 60 atm, what is V2?
February 3, 2014

Physics
An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266 and 115°C. It absorbs 4250 cal per cycle at 266°C. What is its efficiency as a percentage?
February 3, 2014

1) B 2) D 3) D
February 3, 2014

Physics
A heat engine absorbs 126 kcal of heat and exhausts 77 kcal of heat in each cycle. Calculate the efficiency (as a percentage)
February 3, 2014

Physics
5.4377 was my final answer and that was right.
February 3, 2014

Physics
I figured it out.
February 3, 2014

Physics
How much (in Celsius degrees) is the temperature of 1.3 kg of alcohol raised by adding 4.1 kcal of heat? The following piece of information may come in handy: specific heat of alcohol is 0.58 kcal/kgC.
February 3, 2014

Physics
An aluminum calorimetry cup [mc = 0.6 kg, cc = 0.22 kcal/(kgC)] is filled with water [mw = 2.4 kg, cw = 1 kcal/(kgC)]. It is at a temperature of 30C. A sample of an unknown substance with mass mm = 2.34 kg, originally at a temperature of 210C, is added. After a while, the ...
February 3, 2014

Physics
A weight lifter manages to lift a 147 kg weight a distance of 1.1 m. Treat her as a thermodynamic system and find how much heat (in kcal) she must put out if her internal energy decreases by 3620 J during the lift.
January 31, 2014

Physics
A weight lifter manages to lift a 147 kg weight a distance of 1.1 m. Treat her as a thermodynamic system and find how much heat (in kcal) she must put out if her internal energy decreases by 3620 J during the lift. Not sure how to answer this.
January 31, 2014

Physics
I can figure it out. Thanks for your help
January 17, 2014

Physics
A gas cylinder of volume 26 liters contains an ideal gas at temperature 27 degrees C and pressure 1920 kPa. Some of the gas leaks until the pressure falls to 1500 kPa. How many moles of gas leaked, assuming that the temperature remains constant during this process?
January 17, 2014

Physics
A can of gasoline has a rectangular base with dimensions of 13.5 cm by 13 cm. If there are 3 liters of gasoline in the can, how much does the surface of the gasoline rise (in mm) in the can when the temperature is raised by 45C? The coefficient for volume expansion of gasoline...
January 17, 2014

Physics
I got .13172 m is that correct?
January 17, 2014

Physics
By what amount will a 178 m long concrete slab on the Mackinac Bridge contract when going from +39C to -35C? The linear expansion coefficient is 10^-5 per C.
January 17, 2014

English !!!
dont have choices its fill in the blank
November 20, 2013

English !!!
To find out which key will open a lock, you try several until one works. This kind of learning is called ________________________.
November 20, 2013

Physics
My only question is how to find the speed of the particles
November 14, 2013

Physics
Thank you so much! I got 22.61x10^-21 is that right?
November 14, 2013

Physics
1. A gold atom has a mass of 3.287 • 10-25 kg and is at rest. It emits an alpha particle that has a mass of 6.646 • 10-27 kg. In this process, the gold atom is transformed into an iridium isotope. The alpha particle has a speed of 3.40 • 106 m/s. A. What is the ...
November 14, 2013

Calculus-Applied Optimization Quiz Problem
A rancher wants to fence in a rectangular area of 23000 square feet in a field and then divide the region in half with a fence down the middle parallel to one side. What is the smallest length of fencing that will be required to do this?
October 31, 2013

Physics
A 67.0 kg astronaut on the planet Zircon (mass = 1.15 x 1023 kg and radius = 2.00 x 106 m) tosses a 8.00 g frog astronaut (a frogonaut?) horizontally with a speed of 7.45 m/s. The 8.00 g frog falls through a vertical distance of 1.40 m and lands a horizontal distance of 8.05 m...
September 5, 2013

physics
An archer shoots a 54.6 g arrow horizontally at a target 14.0 m away. The arrow is 18.0 inches long. The 54.6 g arrow is aimed directly at the center of the target, but it hits 60.0 cm lower. What was the initial speed of the arrow? (Neglect air resistance.)
September 5, 2013

Math
1/8(2sin2x-sin4x)= cosxsin^3x prove
June 19, 2013

Finance
When Lisa was first hired by the Environmental Protection Agency as a research scientist, she had sufficient income to deposit \$600 each quarter into an IRA paying 10% interest, compounded quarterly. The quarterly deposits lasted for 12 years. a) How much was in the account at...
May 26, 2013

Biochemistry
Calculate the ATPs resulting from the total oxidation of the following compounds: a. Fructose-6-phosphate b. 3-Phosphoglycerate c. Succinyl-CoA d. Stearic acid How do I begin?
April 28, 2013

Biochemistry
Based on free energies of hydrolysisgiven below, for each of the followingreactions: i)Determine the overall ∆G of thereaction ii)State whether it is favorable...
April 18, 2013

calculus
The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p=-0.01x^2-0.3x+19 Determine the consumers&#...
April 10, 2013

language arts
The answer is B you can tell from the context clues since the sentence refers to a scientist that would be a guest speaker. From this you can deduce that this person is going to do a sort of lecture which usually involves speech and writing. Reasons why other answers are wrong...
April 9, 2013

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