Questions Asked on
March 24, 2013

Math
29.There are 16 boys and 12 girls in Kelly's class.Her teacher wrote the name of each student on a card and placed the cards in a box without looking the teacher chose a card from the box.What is the probability that Kelly's teacher will pick a card with a
asked by Jerald 
cycles of matter (life science)
How does the Laws of Conservation of Matter and Energy relate to the Cycles in Nature?
asked by Anonymous 
Energy Transfer and Heat flow
1. What is entropy? 2.With every energy transfer, what form of energy is always released? I think 2 is Heat? not sure about 1
asked by Anonymous 
Waves and the Media
What do mechanical waves such as sound need that electromagnetic waves do not?
asked by Anonymous 
Properties and changes of matter
what gets hot and cold faster, solid or gas and why?
asked by Anonymous 
math
The surface area of the Great Pyramid at Giza was about 1,496,980 square feet when it was built. A model of this pyramid has a surface area of 599 square inches. what is the scale factor from the model to the actual pyramid?
asked by Anonymous 
Physics
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 59.82 diopters, and the lenstoretina distance is 1.686 cm. (a) How far is the blackboard from her eyes? (b) If the writing on the blackboard is 4.81
asked by please help 
chemistry
Tantalum metal is produced by reaction of potassium heptafluorotantalate (K2TaF7) with elemental sodium (Na) in a reactor heated to 850oC. The byproducts are potassium fluoride (KF) and sodium fluoride (NaF). The reactor is charged with 244.0 kg of K2TaF7
asked by schoolgirl 
statistics
In a recent study on gender differences in education, a sample of 7 boys had a mean score of 18.5 and a standard deviation of 4.1 on a Standardized Math Test. A sample of 11 girls had a mean score of 19.9 and a standard deviation of 3.6 on the same test.
asked by Alex 
Reliability of Evidence
what are ways scientists try to keep their results valid when experimenting?
asked by Anonymous 
Literacy
Which search engine would be best to use when you want to know if your library carries a particular journal? A. Google Scholar B. Worldcat C. Webarchive D. All the Web my answer is a 2. Which of the following sets of Library of Congress call numbers is in
asked by Kim 
physics
a ball rolling on oa inclined plane dors so with constant acceleration. One ball, A, is released from rest on th etop of an inclined plane 18m long to reach the bottom 3s later. At the same time as A is released, another ball, B, is projected up the same
asked by edward 
Quantum Physics
Suppose we ran m steps of Grover's algorithm on some function f (which has one marked element y) and the resulting superposition was exactly y>. (a) What was the state after the (m−1)th step? Note that you can describe the superposition by specifying
asked by helpless 
Quantum Physics
Let f:{0,1}^3→{0,1} with f(101)=1 and f(x)=0 for x≠101. In this question, we will run through two iterations of the algorithm. (a) What is the superposition after the initialization step? Note that you can describe the superposition ∑x∈{0,1}3αxx>
asked by helpless 
Physics
A ball rolling on an inclined plane dors so with constant acceleration. One ball, A, is released from rest on the top of an inclined plane 18m long to reach the bottom 3s later. At the same time as A is released, another ball, B, is projected up the same
asked by Edward.Oki 
Tides
What astronomical bodies are most responsible for the tides on earth?
asked by Stephanie 
chemistry
How many grams are in 4.00mol of sodium chloride (\rm NaCl)
asked by Dee 
Life orientation
In 1015 critically discuss 5 ways in which the human or enviromental problem impacts on the community.provide relevent sources to support your claims
asked by Lucky 
Chemistry
• Describe the properties of acids and bases and explain the concept of pH • How will you measure the pH of the soil in your garden • How will pH affect materials and equipment you might use in gardening. • 3 vegetables and 3 flowers that would
asked by Juan 
Chemistry
Ethyl alcohol which is prent in many beverages molecular formular C2H6O.If 9.2g of ethyl alcohol are available.Calculate number of molecular of ethyl alcohol 9.2g of ethyl alcohol.
asked by Anonymous 
physics
How can I calculate a person's power when bowling? I am given the ball weight, time to swing, horizontal swing distance, time to roll down lane, and the lane's length.
asked by Shaniqua 
Physics
A charge of q1=1×10−6 C is located at corner A of an equilateral triangle. A charge q2=4×10−6 C is located at corner B and a charge of q3=7×10−6 C is located at corner C. The distance AB=0.46 m (the other two sides of the triangle are the same).
asked by Phy 
Please help with circle tangents geometry
Two circles of different sizes are tangent at T. A is on the smaller circle, whereas B is on the larger one. Also, segment CD is tangent to the smaller circle, and crosses the goes through the larger circle and hits the other side at D. TD is a diameter,
asked by Knights 
MATH
SHOW THREE WAYS TO ESTIMATE 3/5 X 9 1/2. IDENTIFY EACH METHOD YOU USE.
asked by ALEXIS 
MATH
JENNA LIVES 4 3/10 MILES FROM SCHOOL. SHE ESTIMATES THAT SHE TRAVELS 4 X 2 X 5, OR 40 MILES EACH WEEK. IS HER ESTIMATE AN OVERESTIMATE OR AN UNDERESTIMATE? EXPLAIN.
asked by ALEXIS 
MATH
WHICH BENCHMARK FRACTION COULD YOU USE TO ESTIMATE THE PRODUCE OF 36 X 11/16?
asked by ALEXIS 
MATH
ESTIMATION. WHICH IS THE BEST ESTIMATE FOR THE AREA OF A SQUARE WITH SIDES EQUAL TO 4 1/8 INCHES?
asked by ALEXIS 
MATH
BRYCE HAS 24 BASEBALL TROPHES. MATT HAS 3/4 AS MANY TROPHIES AS BRYCE. HOW MANY TROPHIES DOES MATT HAVE?
asked by ALEXIS 
HR
1. List and discuss the advantages and disadvantages of offshoring jobs.
asked by Agnes 
maths
Solve the inequality //(2x1)(x+3)/4/< 1 where /x/ is the modulus of x.
asked by black_widow 
maths
What is Mersenne prime?
asked by black_widow 
Chemistry
I do not understand the acid + base >conjugate base + conjugate acid Please explain it to me with an example. I really do not understand it and I truly need your help. I do not understand how he hydrogens transfer and stuff like that. Your help is very
asked by Krystien 
stats
two factor ANOVA indep measures exper. 2 level factor A 3 level factor B n=5 in each treatment SS df ms between 240 5 factor A ? 1 ? Fa=24 factor B ? 2 ? AxB 60 2 30 within ? 24 5 are this answers right for SS A=120 B=80 w/I=120
asked by tita 
CMGT/410 V13
The company offsite 2day training session project is about ready to enter the execution phase. However, management has a history of being surprised with projects that finished overbudget, did not adhere to the timeline, evinced waste of resources, or did
asked by Tchangwe 
Physics
The ultracentrifuge is an important tool for separating and analyzing proteins in biological research. Because of the enormous centripetal accelerations that can be achieved, the apparatus must be carefully balanced so that each sample is matched by
asked by Leanna 
physics
A compact car can achieve a maximum acceleration of 3.2 m/s^2. If dice were hanging from the rearview mirror, what angle would they swing on?
asked by R 
algebra
write and inequality describing this region. will an 18 wheeler hold 71 refrig's and 118 tv's or will it hold 51 refig's and 176 tv's?
asked by maddie 
urgent urgent algebra / precalculas
1. Given a function,H(x)explain how to find the components f(X)AND g(x) such that f(g(x)) = H(x) 2. let H(x)=(2x+5)^4 find the function f and , so that f(g(X))=H(x)
asked by zachary 
Physics
1. At what height above the earth is the freefall acceleration 30% of its value at the surface? 2. What is the speed of a satellite orbiting at that height?
asked by Leanna 
math
please help me how to solve the integral sinx/x dx from 0 to infinite : ∫_0^∞▒〖sinx/x dx〗 thank you
asked by deel 
Chemistry
Calculate the pressure of 0.800 moles of helium gas, when the gas is in a balloon with a volume of 2.30 L at a temperature of 32°C.
asked by Debbie 
statistics
solve this math statistic problem: an insurance company insures a person's antique coin collection worth $20,000 for an annual premium of $300. If the company figures that the probability of the collection being stolen is 0.002, what will be the company's
asked by Anonymous 
chemistry
what is the total heat lost if you have 8 grams of copper and the temperature changed from 43°C to 36°C
asked by grace 
Physics
Aoron leaves one cify at noon. He has to be at another city 186 km away at 3:00 p.m, the speed limit the entire wAy is 65 km/h . Can he arrive At the second city on time? Explain
asked by Mary 
Physics
Which describes the greatest displacement?  walking 3 m east then 3 m north, then 3 m west  walking 3 m north, thrn 3 m west, then 3 m south
asked by Mary 
geography
What does the word napasta mean in english?
asked by dennis 
chemistry 2 college
explain how to find the mass of solute in the solution: 50.0g of solvent in a 10.0% NaCl solution?
asked by deedee 
Chemistry
A 5.0 mL sample of HCl is placed in a flask. Titration required 15.0 mL of .20 M NaOH. What is the molarity of the HCl in the sample?
asked by Michael 
physics
The system shown in the figure below consists of a m1 = 5.52kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76kg block.The
asked by Nicole 
Math Calculus
A company needs to produce a cylindrical can to hold water. It must have a volume of 500ml. The side of the can will cost 40$/m^2 to produce and the top and bottom of the can will cost 50$/m^2 to produce. Find the most economical dimensions.
asked by John 
biomechanics
Suggest how a snail and a large dog develop linear momentum.
asked by yaya 
Counseling
are there in big differences in the ACA and NCDA codes of ethics?
asked by Lisa 
physics
The system shown in the figure below consists of a m1 = 5.52kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76kg block.The
asked by Nicole 
physics
The system shown in the figure below consists of a m1 = 5.52kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76kg block.The
asked by Nicole 
Math
If a man casts 14 foot and a child casts a 9'4" shadow at the same time how tall is the man?
asked by Shanequa 
deutsch
bitte erkläre mir die wörter: eigenartige weisen schürzte seie kleider allerlei ausflüchten schwarm die Kunde Ungesäumt spielmann senkung eines hügels danke! ps: schreibe mir eine schnelle antwort!!!
asked by priyanka 
Physics
in a childrens soccer game, one of the children kicks the ball from the ground, giving it an itial velocity of 22m/s a) what height and range does the ball reach? b) How high is the ball 2.25s into flight?
asked by Nate 
math
Why do we write radian measures with a π rather than just give the decimal equivalent? (for example, why not use 1.88 rad instead of 3π/5 rad?) Thx
asked by Adam 
Math
Find the area of a circle with a radius of 8 cm. Use 3.14 for pi. Type your answer as a number only. Find the area of a triangle with a base of 6 cm and a height of 3 cm. Remember your formula. Question 4 Find the area of a figure with base #1 of 4 in.,
asked by paragonnova 
accounting
Tribke Enterprises collected the following data from its financial reports for 2012: Stock price $18.37 Inventory balance $300,000 Expenses (excluding COGS) $1,120,000 Shares outstanding 290,000 Average issue price of shares $5.00 Gross margin % 40%
asked by Anonymous 
Math
of 53 plays attributed to a playwright, 16 are comedies, 18 are tragedies, and 19 are histories. if one play is selected at random, find the odds against selecting a tragedy.
asked by Christal 
physics
As your hand moves back and forth to generate longitudinal pulses in a spiral spring, your hand completes 3.26 backandforth cycles every 8.31 s. The velocity of the pulse in the spring is 1.47 cm/s.
asked by lex 
history
how are harriet quimby challenges different from bessie coleman challenges
asked by lattane 
physics
The lens and mirror in the figure below are separated by d = 1.00 m and have focal lengths of +74.9 cm and 56.4 cm, respectively. An object is placed p = 1.00 m to the left of the lens as shown.
asked by Pri 
Algerbra
in the equation y=4x,if the value of x is increased by by 2,what is the effect on the value of y?
asked by Eric 
Biology
Identify the molecules that participate in the light dependant reactions and tell what they do.
asked by Math 
math
After six biology tests, Ruben has a mean score of 73. What score does Ruben need on the next test to raise his average (mean) to 75?
asked by sam 
math
Mark averaged 60 miles per hour during the 30mile trip to college. Because of heavy traffic he was able to average only 40 miles per hour during the return trip. What was Mark's average speed for the round trip?
asked by sam 
algebra
the number of gallons of water,y,after x hours maybe modeled by the linear equation y=80050x. Which of the following statements is true, a.it is filling at a rate of 800 gallons per hour/b.it is filling at a rate of 50 gallons per hour/c.it is emptying at
asked by Eric 
Algerbra
SOLVE.8X+7=6
asked by Eric 
Algerbra
WHAT IS THE EXPRESSION THAT IS EQUIVALENT TO 3(X2)
asked by Eric 
Chemistry
Na2CO3 reacts with H2SO4 to give respective salt water and carbon dioxide. Calculate the mass of pure salt formed when 300 g of Na2CO3 of 80% purity reacts with H2SO4
asked by Aurab 
math
A professor grades students on three tests, four quizzes, and a final examination. Each test counts as two quizzes and the final examination counts as two tests. Sara has test scores of 60, 80, and 89. Sara's quiz scores are 85, 94, 83, and 84. Her final
asked by tommy 
Physics
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 12 cm in diameter and 45 cm in length. You would like a 2.0A current to produce a 2.1kG magnetic field inside your solenoid. What is the total length of wire you will need
asked by Valerie 
Algebra 2
Find the value of $1000 deposited for 8 years in an account interest compounded semiannually.
asked by Gina 
Physics
In Oersted's experiment, suppose that the compass was 0.30 m from the currentcarrying wire. If a magnetic field of 1/3 the Earth's magnetic field of 5 10−5 T was required to give a noticeable deflection of the compass needle, what current must the wire
asked by Valerie 
College Algerbra
THE TEMPERATURE ON A SUMMER DAY IS // DEGREES FAHRENHEIT.the formula to convert the temperature to degrees Celsius is C = 5/9(F32) what is the corresponding temperature in degrees Celsius?
asked by Eric 
chem
Assume that 35.0 mL of a 0.13 M solution of a weak base B that accepts one proton is titrated with a 0.13 M solution of the monoprotic strong acid HX. (a) How many moles of HX have been added at the equivalence point?
asked by hannah 
College Algerbra
Solve the inequality.  5x / 7 2>1
asked by Eric 
College Algerbra
Solve the inequality. 0.1(0.1x+0.1) _< 0.8
asked by Eric 
math
how many different ways can 7 out of 18 people be picked to fit into a van
asked by john 
Physics
in a childrens soccer game, one of the children kicks the ball from the ground, giving it an itial velocity of 22m/s a) what height and range does the ball reach? b) How high is the ball 2.25s into flight?
asked by Nate 
math
how many different ways can 7 out of 18 people be picked to fit into a van
asked by john 
Chemistry
One reaction of iron with hydrochloric acid is represented by the following thermochemical equation. Fe(s) + 2HCl(aq) ? FeCl2(aq) + H2(g); (Delta)H°= –87.9 kJ How much heat is liberated at constant pressure if 0.215 g of iron reacts with 40.4 mL of
asked by Raul 
physics
a proton (mass 1.67 x 10^27 kg) with a velocity of 1.10 x 10 7 m/s collides with a motionless helium nucleus, and the proton bounces back with a speed of 6.00 x 10 6 m/s. The helium nucleus moves forward with a velocity of 4.00 x 10 6 m/s after the
asked by casey 
Chemistry
A solution is prepared by dissolving 0.12 mol of acetic acid and 0.12 mol of ammonium chloride in enough water to make 1.0 L of solution. Find the concentration of ammonia in the solution.
asked by Emma 
UOP
Use the value d= rt to find the variable D= 100 feet t =25 second
asked by Algebra 
college math
How many different committees can be formed from 9 teachers and 39 students if the committee consists of 2 teachers and 3 students? In how many ways can the committee of 5 members be selected?
asked by Craig 
Algebra 2
Let (x) be defined for all positive integer values of x as the product of all even factors of 4x. For example, (3)=12x6x4x2=576. What is the value of (5)?
asked by Anonymous 
Math Calculus
A company offers the following charges: $54 per thousand for orders of 62000 or less with the charge per thousand decreased by 38 cents for each thousand above 62000. Find the order which will make the company's revenue a maximum.
asked by John 
chemistery
How much heat, in joules and calories, is needed to heat up 295 mL of water from 26.6 °C to 85.1 °C? Assume the density of water to be 1.00 g/mL.
asked by dug 
math
if you deposit $700 a month in a savings account that earns 4% interest compounded monthly. how many months to get $3500 and what is the balance in the account.
asked by Anonymous 
statistics
The grades on the final examination given in a large organic chemistry class are normally distributed with a mean of 72 and a standard deviation of 8. The instructor of this class wants to assign an “A” grade to the top 10% of the scores, a “B”
asked by Sarah 
math
a driver comes to pick up members of your family (20 members) for a family reunion. the van holds 7 people not including the driver. assuming none of the babies will be riding (2 babies in the group of 20) how many different ways can 7 people be chosen to
asked by john 
english
"A Noiseless Flash" by John Hersey? List one fiction technique and one nonficiton technique from the selection and descsribe the effects of each on readers. Please help cause I suck at this!!
asked by ashhhhhhhhhhhh 
Spanish
Verb Distinction Give the correct form of the appropriate verb, saber or conocer, which would be used in writing the following sentences in Spanish. Be sure the verb is written in correct form to agree with the subject of the sentence and also in the
asked by RJ 
Math
A company offers the following charges: $54 per thousand for orders of 62000 or less with the charge per thousand decreased by 38 cents for each thousand above 62000. Find the order which will make the company's revenue a maximum.
asked by John 
chemistry
At a certain temperature, the concentrations of NO and NH3 are equal, and the concentration of H2o and o2 are 2.0M and 3.0M respectively. What is the value of Keq at this temp? The equation is 5O2+4NH3> 4NO+6H20
asked by K 
Chemistry
The Ka of a monoprotic weak acid is 8.11 x 10 ^ 3. What is the percent ionization of a 0.125M solution of this acid?
asked by Joe 
physics
The system shown in the figure below consists of a m1 = 5.52kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76kg block.The
asked by Nicole 
physics
The system shown in the figure below consists of a m1 = 5.52kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76kg block.The
asked by Nicole 
science
What will eventually occur if in deep space an astronaut's wrench is outside the spacecraft moving with the same velocity as the spacecraft?
asked by anonymous 
decimals
this number has 4 places to the right of the decimal point. it has 2 hundreds, 3 ten thousandths and 1 tenth. it is in between 240 and 242. the thousandths place is one less than the ten thousandths and less than the hundredths. what are the 6 numbers that
asked by Anonymous 
Chemistry!!!!!! Please help immediately!!!
Please show me step by step. Thank you. One commercial method used to peel potatoes is to soak them in a solution of NaOH for a short time, remove them from the NaOH, and spray off the peel. The concentration of NaOH is normally in the range of 3 to 6 M.
asked by Lilyyyyyyyyyyyy!!!! 
Ashford
One element generally not found in caste systems is: (Points : 1) the association of one’s social position with one’s occupation. inheritance of one’s status. equal access to wealth. prohibitions on marrying those outside one’s class.
asked by Hope 
Chemistry (Immunoassays)
What is the common component that makes a homogeneous competitive immunoassay? Describe one.
asked by James 
Physics
A vertical wall (5.3 m multiplied by 2.3 m) in a house faces due east. A uniform electric field has a magnitude of 157 N/C. This field is parallel to the ground and points 38° north of east. What is the electric flux through the wall?
asked by Emilie 
stats
How do you perform the Oneway ANOVAs A researcher is interested in examining whether knowledge of a previous criminal record will affect the juryfs decision to acquit or convict the defendant. The researcher shows 15 participants a 4hour trial in which
asked by Anonymous 
Calculus/ Optimization
A truck driver, on assignment from the owner of the truck is to drive on a 300 mile stretch of highway at a constant speed of v miles per hour. According to road signs, the minimum speed allowed is 55 miles per hour and the speed limit is 70 miles per
asked by Marto 
physics
A bird wants to rech its nest that is located 53 meters (35 degrees south of west) from where it is perched. If the maximum speed that the bird can fly with respect to the air is 12m/s and there is a wind blowing from a direction of east 35 degrees south
asked by Kate 
Math
For a chemistry experiment, Heather needs 3.75 grams of salt. How many decigrams of salt does Heather need?
asked by Kaylee 
math
if you deposit $700 a month in a savings account that earns 4% interest compounded monthly. how many months to get $3500 and what is the balance in the account.
asked by Anonymous 
math
in triangle ABC, AB = BC and ABC = 42. find ACB
asked by angela 
Calculus
A rectangular box with square base (which is NOT necessarily a cube) and NO top is to be made to contain 9 cubic feet. The material for the base costs $2 per square foot and the material for the sides $3 per square foot. Find the dimensions that minimize
asked by Marto 
science 297
chronic asthma when caused by air pollution is most likely due to
asked by sarah 
story problems
jordan made 3/5 of a recipe that called for 2 1/3 cups of sugar. how much sugar was used
asked by Anonymous 
Chemistry
Calculate both the moles and grams in each of the following? a. 6.02 x 10^23 atoms of Na e. 3.01 x 10^23 atoms of S
asked by Matt 
physics
The system shown in the figure below consists of a m1 = 5.52kg block resting on a frictionless horizontal ledge. This block is attached to a string that passes over a pulley, and the other end of the string is attached to a hanging m2 = 2.76kg block.The
asked by Nicole 
Chemistry
What do we mean when we say that concentrated nitric acid (HNO3) is 16 molar?
asked by Tina 
science 207
chronic asthms when caused by air p[ollution is ,most likely due to: short term pollutant exposer long term pollutant exposer thbe weather during an episode of pollutant expossure exposure to a cerain kind of pollutant
asked by sarah 
Chemistry
A solution is prepared by dissolving 571.6 g of H 2SO4 in enough water to make 1000.0 mL of solution. The solution has a density of 1.3294 g/mL. (molar mass of H2SO4 = 98.08). What is the molar concentration of the solution?
asked by Bill 
MA 107 college algebra
Each side of a square is lengthened by 2 inches. The area of this new, larger square is 81 square inches. Find the length of a side of the original square.
asked by tinysong 
MA 107 college algebra
Simplify the expression using the power rule.(3to the power of 2)to the power of 5
asked by tinysong 
chemistry (Pls Bob check for me)
A 0.5g of fuming h2so4 oleum is diluted with water. This solution is completedly neutralized by 26.7ml of 0.4N naoh. Find the percentage of free so3 in the sample The asnwer 20.6% My calculation h2so4= 98/2 = 49 so3= 80/2 = 40 26.7ml x 0.4N = 10.68ml 
asked by Fai 
Algerbra
Make a table of solutions for the equation, and then use the table to graph the equation. Just graph one of them. y = 2x 1 How do I make one, may I use microsoft Excel?
asked by Eric 
Algebra
At a portrait studio, three 8 by 10inch pictures plus two 5 by inch pictures cost $52, and two 8 by 10inch pictures plus 5 by 7inch pictures cost $40. This situation can represented by the system of equations below, where x is the cost, in dollars,
asked by Stephanie 
math
monica spent 8/13 hours listening to tapes of beethoven and brahms. she spent 2/5 hours listening to beethoven. how many hours were spent listenign to brahms
asked by Heather 
algebra
Will someone please help me slove this question. Completely factor the polonomial. 8x^3+16x^2+8x+16
asked by john 
Trig
prove that tanA divided by the sinA equals the secA
asked by Dominique 
Algebra
Use a graphing calculator or a computer to graph the system of inequalities. Give the coordinates of each vertex of the solution region. 5x3y is greater than or equal to 7 x2y is greater than or equal to 3 3x+y is greater than or equal to 9 x+5y is less
asked by Emma 
algebra
the larger leg of a right triangle is 7ft longer than its samller leg. the hypotenuse is 1ft longer than the larger leg. how many feet long is the samller leg?
asked by jessica 
math
I wold like to know if I have this answer right? Factor the trinomial competely. x^2x2 My answer is (x2)(x+1)
asked by sam 
algebra
list the domain and the x and y intercepts of the following function. Graph the funciion. Graph the function. Be sure to label all the asymptotes.
asked by Anonymous 
Stats.
One hundred subjects in a psychological study had a mean of 35 on a test instrument designed to measure anger. The study the ó=10. Find a 99% confidence interval for the mean anger score of the population.
asked by Christina 
Chemistry
K1 = 0.727 K2 = 12.1 T1 = 2000 T2 = 3000 Solve for the standard enthalpy of formation. They gave me the formula ln(K2/K1) = DeltaH /R (T2  T1 / T1T2) The answer is supposed to be in KJ/mol and I keep getting 2.022 but its not right. I'm not sure what Im
asked by Katie 
college algebra
determine the vertical asymptotes of the graph of function.g(x)=x^3 diveded by 5x^3x^222x
asked by Anonymous 
stats
One hundred subjects in a psychological study had a mean of 35 on a test instrument designed to measure anger. The study the ó=10. Find a 99% confidence interval for the mean anger score of the population.
asked by Christina 
math
I need help with these two problems please. Completely factor the polynomial. 8x^3+16^2+8x+16 Factor the trinomial completely. y^314y^2+48y
asked by ashley 
social studies
What was Julius Caesar Civilization?
asked by Anonymous 
Chemisry
Potassium, a silvery metal, reacts with bromine, a corrosive, reddish liquid, to yield potassium bromide, a white solid. Write the balanced equation, and identify the oxidizing and reducing agents.
asked by nana 
statistics
The average homicide rate for the cities and towns in a state is 10 per 100,000 population with a standard deviation of 2. If the variable is normally distributed, what is the probability that a randomly selected town will have a homicide rate greater than
asked by brittany 
Math Calculus
find the dimensions of a rectangle of maximum size that will fit into a half circle of radius 30 cm.
asked by John 
calculus
Find the integral. x^4/the square root of (x^51)
asked by eve 
Algebra
Use completing the square to describe the graph of the following function. Support your answer. f(x)=2x^2+4x+1
asked by Jenn 
math
For the function f(p) an input of 3 yields an output value of 6. What value of p would you use to have f(5p) = 6?
asked by Katie 
math
Classify each statement as sometimes, always, or never true. A. 2^(2/3)*4^(4/3)=8*2^(1/3) B. If x>0, then (squareroot x*squareroot 2)^3 =x^(3/2) 2^(3/2) C. If x>0, then (squareroot x+ squareroot 2)^3 =x^(3/2) 2^(3/2) D. The only solution to x^(2/3)= 4 is
asked by hannah 
economics
Maria can read 20 pages of economics in an hour. She can also read 50 pages of sociology in an hour. She spends 5 hours per day studying. a. Draw Maria's production possibilities frontier for reading economics and sociology. b. What is Maria's oppurtunity
asked by Bob 
Applied Behavioral Science
Recognizing Culture Gaps As a leader, how might a leader recognize a culture gap? What are some techniques leaders might use to influence and change cultural values when necessary?
asked by Samantha 
prcalculus
change the logarithmic expression to an equivalent expression involving an exponent. log416=x
asked by deanne 
Algebra
Find the following function f(x)=(x+3)^2(x1)^2 (a)Find the x and y intercept of the polynomial function f. (b) Determine whether the graph of the f crosses or touches the xaxis at each x intercept. (c) Put all the information to obtain the graph of f.
asked by Jenn 
Chemistry
calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2
asked by Ale 
Chemistry
calculate the volume of 0.50 M NaOH needed to saturate 100.0 ml of 0.50 M Zn(NO3)2 with Zn(OH)2
asked by Ale 
College algebra
Find the vertical, horizontal, and qblique asymptotes, if any, for the following rational function. T(x)=x^2/x^4256
asked by Jenn 
Statistic
A urn contains 21 red balls, 14 white balls If we randomly select 2 balls, one after the other without replacement, what is the probability that both of the balls selected are red?
asked by Bella 
Statistic
Suppose that 15 students take a quiz and everyone in the class scores an 80. The standard deviation of scores for this quiz is ____________?
asked by Bella 
biology
Why humans not evolve with one central repository of DNA rather than having it replicated throughout the body?
asked by Jazlee 
math
thirddegree polynomial with real coefficients 4 3
asked by Anonymous 
Statistic
Below are listed the numbers of doctors in various specialties by gender. Pathology Pediatric Psychiatry Male 12,575 33,020 27,803 Female 5,604 33,351 12,292 Choose 1 doctor at random. (a) Find the probability of choosing a Pathologist or a female? b.)
asked by Bella 
Math (Number Theory)
If a,b, and c are nonzero reals such that a + b + c = 11, and 1/a + 1/b + 1/c = 0, what is the value of a^2 + b^2 + c^2?
asked by Hale 
math
The monthly demand function for a product sold by a monopoly is p = 3750 − 1/3x^2 dollars, and the average cost is C = 1000 + 70x + 3x^2 dollars. Production is limited to 1000 units and x is in hundreds of units. (a) Find the quantity that will give
asked by Sarah 
trig
Find the first two terms a_1 =5 and an=3a _n1+2
asked by veronica 
stats
A study by Hewitt Associates showed that 79% of companies offer employees flexible scheduling. Suppose a researcher believes that in accounting firms this figure is lower. The researcher randomly selects 415 accounting firms and through interviews
asked by John Barclaey 
math
Can you show me how to solve this using logarithims? thank you 3e^3x = 10.21 for x.
asked by toni 
Math
Determine the number of subsets of A={1,2,…,10} whose sum of elements are greater than or equal to 28.
asked by Carlos 
Algebra
Can someone please help me with a couple questions? 1)The probability that a dessert sold at a certain cafe contains chocolate is 73%. The probability that a dessert containing chocolate also contains nuts is 25%. Find the probability that a dessert at
asked by Lee 
math
A professor grades students on three tests, four quizzes, and a final examination. Each test counts as two quizzes and the final examination counts as two tests. Sara has test scores of 60, 80, and 89. Sara's quiz scores are 85, 94, 83, and 84. Her final
asked by lisa 
Math
For the angle shown is a point given on its terminal arm. [picture shows 12, 5 in quadrant three of the it circle]. Calculate the values of the three primary trigonmetric ratios, accurate to four decimal places.
asked by Laurian 
physics
A car traveling at 150 miles/hour strikes a wall and bounces backwards at 30 miles/hour. If the car is in contact with the wall for 0.1 seconds, what is the force that the car exerts on the driver.
asked by robert 
Algebra 2
How do i find the answer to 1/91/x divided by 1/811/x^2
asked by Ryleigh 
Math/ Calculus Please HELP!!!
A truck driver, on assignment from the owner of the truck is to drive on a 300 mile stretch of highway at a constant speed of v miles per hour. According to road signs, the minimum speed allowed is 55 miles per hour and the speed limit is 70 miles per
asked by Chris 
Math HELP
For the angle shown is a point given on its terminal arm. [picture shows 12, 5 in quadrant three of the unit circle]. Calculate the values of the three primary trigonmetric ratios, accurate to four decimal places. Dont understand thissss
asked by Laurian 
general chemistry
KCl crystallizes in a structure like NaCl. The ionic radius of Na+ is 0.525 times the ionic radius of Cl^ and 0.714 times the ionic radius of K+. What is the ratio of the density of NaCl to that of KCl?
asked by StressedStudent 
College Physics
A child's toy consists of a toy car of mass 0.100kg which is able to roll without friction on the looptheloop track shown. The car is accelerated from rest by pushing it with force F over a distance d, then the car slides with a constant velocity until
asked by C 
math
It cost $20 to replace an air filter on a $20,000 car. What percent of the cars value is the price of the air filter?
asked by diarra 
inequality
solve the inequality (x+8)^2(x4) > 0
asked by Jenn 
statistics
the manufacturer of a popular brand of tv set claims that 95 percent of its sets last at least 5 years without requiring a single repair. a sample of 8 purchasers of these tv sets was selected at random from a list of purchasers five years earlier. use
asked by afiba 
general chemistry
What is the radius of the largest sphere that can be placed at the center of a facecentered cubic unit cell of a cubic closestpacked array of spheres if the spheres have radius of 2.0 x 10^2 pm?
asked by StressedStudent 
Chemistry
Assuming that the smallest measurable wavelength in an experiment is 0.410 fm (femtometers), what is the maximum mass of an object traveling at 395 m·s–1 for which the de Broglie wavelength is observable?
asked by marie darling 
Solve the inequality
Solve the inequality x^2(8+x)(x9)/(x+4)(x7) is greater than or equal to 0?
asked by Jenn 
Chemistry
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 5.48 × 1014 s–1. With what kinetic energy will
asked by marie darling 
phi 208 ethics and moral
The First Cause argument for the existence of God assumes that
asked by tone 
Using the remainder
use the remainder theorem to find the remainder when f(x) is divided by x  3. Then use the factor theorem to determine whether x3 is a factor of f(x) f(x)=2x^310x^2+11x+12
asked by Jenn 
chemistry
If 3.12 kg of S are reacted with oxygen calculate the volume of SO2 gas in mL formed at 35 degrees Celsius and 1.09 atm
asked by jane 
chemistry
calculate the mass in grams of hydrogen chloride produced when 5.25 L of a molecular hydrogen measured at STP reacts with an excess of molecular chlorine gas
asked by jane 
Science
A thermally insulated 50ohm resistor carries a current of 1A for 1s. The initial temperature of the resistor is 10degree, its mass is 5g, and its specific heat capacity is 850j/kg/k. Calculate the change in entropy of the resistor and what is the change in
asked by Salando 
Science
A thermally insulated 50ohm resistor carries a current of 1A for 1s. The initial temperature of the resistor is 10degree, its mass is 5g, and its specific heat capacity is 850j/kg/k. Calculate the change in entropy of the resistor and what is the change in
asked by Salando 
Science
A thermally insulated 50ohm resistor carries a current of 1A for 1s. The initial temperature of the resistor is 10degree, its mass is 5g, and its specific heat capacity is 850j/kg/k. Calculate the change in entropy of the resistor and what is the change in
asked by Salando 
Chemistry
For each electron in a groundstate Be atom, select the set of quantum numbers that represents it. Check all that apply. n=1 l=0 ml=1 ms= +1/2 n=1 l=0 ml=0 ms=1/2 n=2 l=1 ml=0 ms= 1/2 n=1 l=0 ml=0 ms=+1/2 n=2 l=1 ml=1 ms=+1/2 n=2 1=0 ml=0 ms=+1/2 n=2
asked by Anonymous 
Chemistry
For each electron in a groundstate Be atom, select the set of quantum numbers that represents it. Check all that apply. n=1 l=0 ml=1 ms= +1/2 n=1 l=0 ml=0 ms=1/2 n=2 l=1 ml=0 ms= 1/2 n=1 l=0 ml=0 ms=+1/2 n=2 l=1 ml=1 ms=+1/2 n=2 1=0 ml=0 ms=+1/2 n=2
asked by Anonymous 
Calculus 2
Find the arclength of y=x^3/3+1/(4x) from 1 to 2. I know that arclength is the integral from 1 to 2 of the sqrt of (1 + (y')^2)dx, but have not been able to figure out how to evaluate the integral. Your help is much appreciated!
asked by Heather 
Dynamics
The 10 kg block shown is released from rest on the horizontal surface at point B, where the spring has been stretched a distance of 0.5 m from its neutral position A. The coefficient of kinetic friction between the block and the plane is 0.30. Calculate
asked by Brandon 
Chemistry
The energy levels of oneelectron ions are given by the equation: En=(2.18*10^(18)J)(Z^2/n^2) The series in the He spectrum that corresponds to the set of transitions where the electron falls from a higher level to the nf = 4 state is called the
asked by Anonymous 
Chemistry
Which of the following electron configurations of neutral atoms represent excited states? [Xe]6s^2 4f^1 [Ar]4s^2 3d^3 1s^2 2s^2 2p^6 3s^2 3p^6 3d^2 [Kr]5s^1 4d^5 2s^2 Which neutral atoms have the following electron configurations? Enter the name or symbol.
asked by Anonymous