Questions Asked on
March 24, 2011

Trigonometry
Having trouble with true/false questions in Trigonometry. They read as follows  True or False: For a trigonometric function, y=f(x), then x=F^1(y). Explain your answer. True or False: For a one to one function, y=f(x), then x=f^1(y). Explain your
asked by Veronica 
physics
The engine weighs 4500 newtons and it is lifted 1.5 meters up by the block and tackle system. To accomplish this, the mechanic must apply a force of 225 newtons while pulling a total of 37.5 meters of chain through the block and tackle pulley system. What
asked by John 
physics
Find the approximate gravitational red shift in 500 nm light emitted by a compact star whose mass is that of sun but whose radius is 10 km.
asked by poqw 
Physics
a 2 kg block slides down a frictionless incline from point A to point B. A force(magnitude P=3N) acts on the block between A and B, as shown. Points A and B are 2 m apart. If the kinetic energy of the block at A is 10 J, and the work done by gravity is
asked by Robert 
Math
Jill's front door is 42" wide and 84" tall. She purchased a circular table that is 96 inches in diameter. Will the table fit through the front door? I know the answer is yes but how I don't understand the math???
asked by Anonymous 
science
Calculate the molarity of each solution. a) 1.0 mol KCl in 750 mL of solution b) 0.50 mol MgCl2 in 1.5 L of solution
asked by Ali 
Math
A science museum requires 3 adult chaperones for every 15 students on a field trip. How many chaperones would be needed for a group of 125 students?
asked by Sara 
Physics
The human ear canal is approximately 2.3 cm long. It is open to the outside and is closed at the other end by the eardrum. Estimate the frequencies (in the audible range) of the standing waves in the ear canal. Express your answers using two significant
asked by Sammi 
statistics
investigators at an agricultural research facility randomly assigned equal numbers of chicken to be housed in two rooms. In room #1, chickens experienced normal day/night cycles. In the other room, lights were left on 24 hours a day. The objective was to
asked by Lara 
Physics
A skier (m=61.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. If h = 7.70 m and D = 11.4 m, find H. Find her total kinetic energy as she reaches the ground.
asked by Anon 
statistics
5. Congressional Committee Memberships The composition of the 108th Congress is 51 Republicans, 48 Democrats, and 1 Independent. A committee on aid to higher education is to be formed with 3 Senators to be chosen at random to head the committee. Find the
asked by Sandra 
Math
A geologist at point A measures the distance and angle of elevation to two columns of the Glen Rose formation in Texas. If the distance AS=796 ft and the distance AN=850 ft, compute the difference in the heights of the two columns to the nearest foot. What
asked by Anonymous 
Chemistry
calculate the freezing and boiling points of each of the following solutions. (a) 0.37 m glucose in ethanol freezing point ______I got 1.2e2 but its wrong_______°C boiling point _________I got 1.1e2 but its wrong:(____°C (b) 15.0 g of decane, C10H22, in
asked by Rebekah 
Physics
An 80kg construction worker sits down 2.0 meters from the end of a 1450kg steel beam to eat his lunch. The beam is 6.0 m length total. A cable is supporting the beam and is rated at 15,000 N and is at a 30 degree angle to the beam. Should the worker be
asked by Alicia 
English
I am the WORST writer. English is my weakness. I just wrote this literary analysis. I would go to the writing center at my school, but the paper is due tomorrow and it doesn't open until after my class. I would appreciate it SO much is someone could just
asked by Emily 
Spanish
Una noche, cuando yo era chica, miré por la cerradura de una puerta y esto es lo que ví: ví una mesa, ví una silla, ví un cojín, y ví una vela. La mesa estaba sobre el piso, la silla estaba sobre la mesa, el cojín estaba sobre la silla, y la vela
asked by anon 
math
6x=48 x=
asked by elaine 
MATH
FIND THE MEDIAN OF THE FOLLOWING PROBLEM. ROUND TO THE NEAREST HUNDREADTH. 8,9,10,12,14,23,23,29,34,37
asked by KYLE 
chemistry
write an equilibrium constant expression for the reaction of acetylene gas with hydrogen gas to produce methane gas.
asked by katie 
math
Two cards are chosen from a standard deck of 52 playing cards without replacement. What is the probability both cards will be an Ace
asked by maria 
AP PHYSICS MECH.
Need help urgent!!! A system consist of a ball of M2 and a uniform rod of M1 and length d. The rod is attached to a horizontal frictionless rotates at an angular speed w, as shown in the figure. The rotational inertia of the rod about point P is ? M1 d^2.
asked by vm 
CHEMISTRY
The equilibrium constant for the reaction, SO2(g)+ NO2(g) NO(g)+ SO3(g) has been experimentally determined as a function of temperature. The results are presented in the table below. T (°F) KC 285 662 752 156 842 93.4 932 59.6 1022 40.2 If 0.0791 ft3 SO2,
asked by Josh 
calculus
At noon, ship A starts sailing due east at the rate of 20km/hr. Ath the time, ship B, which is located 100km east of ship A initially, starts sailing on a course 60 degrees north of west at the rate of 10km/hr. How fast is the distance between the two
asked by marc 
Dynamics
During a highspeed chase, a 2400lb sports car traveling at a speed of 100 mi/h just loses contact with the road as it reaches the crest A of a hill. a) Determine the radius of curvature r of the vertical profile of the road at A. b) Using the value of r
asked by Sarah 
math
Determine the sum of the following angles: 13° 31' 27" , 64° 12' 48"
asked by eric 
math
from 4 feet above a swimming pool, susan throws a ball upward witha velocity of 32 feet per second. how long does it take the ball to reach the water?
asked by kayla 
Math
A man flies a kite with a 100 foot string. the angle of a string is 52 degrees. how length off the ground is the kite?
asked by Niecy 
Calculus
I need help with this question... Find the values for a, b, and c such that the graph of y= ax^2 + bx + c has a relative maximum at (3,12) and crosses the yaxis at (0,1). If someone could help me out, that would be awesome :)
asked by Kay 
Physics
A boy in a car moving at 10 km/h [N] wants to throw a ball to a girl standing on the righthand side of the road. He is able to throw the ball at 20 km/h. He wants the ball to go straight east, directly to her. a) Relative to the car which way should he
asked by Emily 
geometry
A bicycle tire has a diameter of 24 inches. How many miles will the bicycle travel when the tires make 16,000 revolutions?
asked by penny 
chem101
Hydrogen gas can be produced in the lab by the reaction of magnesium metal and hydrochloric acid. Mg + 2 HC > MgCl2 + H2 How many grams of hydrogen gas will be produce if 5.00 g of magnesium metal is dissolved in excess acid.
asked by richard 
physics
A block of mass m = 2.00 kg slides down a 30.0° incline which is 3.60 m high. At the bottom, it strikes a block of mass M = 7.20 kg which is at rest on a horizontal surface Determine the speeds of the two blocks after the collision. lighter block =
asked by Haley 
business law
I have assignment i need help in Agency and partnership, cases how can i send it to you
asked by hiba 
algebra 1B
solve (sqrt14x)+8=(sqrt3x)=11
asked by Daniel 
health
choose a tv show that you enjoy and use the chart to emanine how the characters show empathy toward one another.which actions show compassion?which one don't?once you've completed the chart,pick one sence from the episode and determine how the characters
asked by odalys 
Air conditioning
The partial pressure of water vapor in an atmosphere at 35oC and 740 mm Hg pressure is 37 mm Hg. What is the relative humidity? What is the actual concentration of water vapor, expressed in ppm? The vapor pressure of water at 35oC is 42 mm Hg.
asked by althea 
social studies
americans pay many different types of taxes to federal, state, and local governments. Choose the best example of a tax that we do NOT pay in the U.S.? A.payroll taxes B.valueadded taxes C.sales taxes D.income taxes
asked by MUNEKITA 
finding perimeters
tell the dimensions and perimeters : 9 square inches
asked by savannah 
Science
The water molecules now in your body were once part of a molecular cloud. Only about onemillionth of the mass of a molecular cloud is in the form of water molecules, and the mass density of such a cloud is roughly 4.0×10−21 {\rm g}/{\rm cm}^{3} Estimate
asked by Rachel 
Hypoventilation VS Bradyapnea
Hypoventilation VS Bradyapnea What's the difference b/t the two? Aren't they both decreased breathing rate?
asked by Lena 
Physics
Which object exerts more gravitational force, object A with a mass of 25 grams and a density of 2 g/cm3 or object B with a mass of 55 grams and a density of 0.5 g/cm3?
asked by Alexis Alexander 
Biology
Will iodine react with sucrose or glucose? I would say no, because it reacts with starch, a polysaccharide, and glucose is a monosaccaride and sucrose is a combination of fructose and glucose, two monosaccharides. Am I right? Why or why not? How does
asked by Mary 
Roper
You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1 g of copper and asked to make a wire, using all the metal, with a resistance of 2.0 (ohms). Copper has a density of 8900 kg/m^3. What length will you choose for your
asked by Daniela 
Algebra
Ameter stick casts a shadow 1.4 m long at the same time a flagpole casts a shadow 7.7 m long. The triangle formed by the meterstick and its shadow is similar to the triangle formed by the flagpole and its shadow. How tall is the flagpole?
asked by Mack 
Physics
how does the MA and the IMA of the inclined plane vary with the inclination angle?
asked by Vivian 
Chemistry
Assume you are performing the calibration step of Experiment 8 and you begin with 40 g of water at 20 oC and 40 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,
asked by Kiera 
Math
Jill's front door is 42" wide and 84" tall. She purchased a circular table that is 96 inches in diameter. Will the table fit through the front door?
asked by Anonymous 
algebra
3bx+13x=9
asked by what are steps with the answer 
Aztec
When Montezuma sent emmisaries with gifts to Cortes, how did they converse? they did not have Dona MArina (now known as La Malinche), and none of the Spanish conquistadors spoke Nahuatl.
asked by Erika 
Physics
how does the MA and the IMA of the inclined plane vary with the inclination angle?
asked by Vivian 
Science
Hi  I need help with the following questions: Julie dissolved 20 g of sugar in a cup of water. The mass of the solution was 500 g. What volume (mL) of water did Julie start with? How did you determine the starting volume of water?
asked by Jill 
Aztec Gods
what was the clothing of the Aztec god, Quetzacoatl?
asked by Erika 
Physic
how does the M.A and the I.M.A of the inclined plane vary with the inclination angle?
asked by Vivian 
geomtry
A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?
asked by najah 
math
an executive committee of three is selected from a group of ten which expression best describes the number of combinations.
asked by Sam 
Writing
Can you fix my writing? My topic is technology hurting kids. Support the side with details. The World of Technology Technology, Technology, that’s all we use today. There’s Facebook, Twitter, Myspace, and so many more. My opinion on technology is that
asked by Raven 
aztecs
what was the clothing of the Aztec god, Quetzacoatl? like you know when every year or so the aztec would choose 1 person to represent a god and they would wear the special clothing the aztecs made for that god
asked by Erika 
health insurance
RBRVS contain relative value components consist of
asked by keneha 
algebra
what are two factors of 240 that subtract or add to 14.
asked by kristina 
Math
On a multiplechoice test you randomly guess the answers to two questions. Each question has five choices. What is the probability that you get both answers correct?
asked by PrettyPlzHelp 
Chemistry (pleas help!)
a stressed chemistry student is hyperventilating into a paper bag. The student stops to wip his brow after a few breaths, and the bag is at 5.7 KPa and the temperature in the lecture hall is 24 degrees C. The bag is 0.75 L full. The student then goes at it
asked by Celine 
chemistry
Enolase catalyzes the conversion of 2phosphoglycerate (2PG) to phosphoenolpyruvate (PEP). The deltaG’o for this reaction is +1.8 kJ/mol. If [2PG] = 0.045 mM and [PEP] = 0.034 mM, what is the actual free energy, deltaG?
asked by brian 
math
what are lines that cross eachother at exactly 1 point?
asked by Anonymous 
geomtry
A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?
asked by najah 
algebra
Evaluate each of the functions below at x = 1, 2, 4, 8, and 16. Plot the graph of each function. Classify each as linear, quadratic, polynomial, exponential, or logarithmic, and explain the reasons for your classifications. Compare how quickly each
asked by peg 
transitional math
Im stuck on questions can anyone help me ? A)Which situation can be modeled by tossing a coin 3 times choosing which one of sixteen teams will win a tournament? B)picking one of six math teacher, C)decide which English teacher of eight will win a trip to
asked by Skye 
Chemistry
how do you compensate for coefficents while using a BCA chart? I know that you have to while using an ICE chart by multiplying by 2 when the coefficient is 2 etc, so that's why I was wondering...
asked by Brad 
Math
rationalize the denominator. Simplify. write final answers is standard form (a+bi). (45i)/(27i)
asked by James 
math
convert the radical to rational exponent form. 7Radical(a+b)
asked by James 
math
A group of 50,000 randomly selected adults were survey about whether they drink at least 6 8oz glasses of water each day. Only 35% said yes to the question.
asked by peewee 
4th grade
trains begin to stop at terminal b every morning at 5 a.m. and then come every 20 minutes for the next 3 hours. mr success needs 15 minutes to get to terminal b from his house. .if mr. success leaves his house at 7:08 a.m., what is the earliest time he can
asked by dk 
english
why is measure of skill competence important?
asked by Bobra 
finite math
a box contains 40 computer disks, 5 are defective. Three disks are selected from the box without replacement and regard to order. what is the probability that a. all three of the disks are defective b. none of the three disks are defective c. exactly one
asked by ophelia 
Chemistry
Hello, i seem to be stuck on a problem and do'nt know why im not gettin the right answer.I have the he Ka and Kb values for each of the weak acids and bases from the chart and I keep getting zero and the second one 2.27*10^24 is this correct?? Thank uu
asked by Amy Wight 
Statistics
It's a simple question I am just so confused with this discrete probability distribution. The question is: In the New Jersey Pick 3 game, you pay $.50 to select a sequence of three digits, such as 911. If you play this game once every day, find the
asked by Norilyn 
Chemistery
If you have 1.8 moles of magnesium and 3.2 moles of chlorine, what is the product of the reaction. what is the limiting regent? what is the Theoretical yield in grams and moles? show work?
asked by Zahid 
chemistry
A sample of Nitrogen(N2)& Helium has a volume of 250mL @ 30degrees celsius & a total pressure of 745 mmHg a)If the pressure is 32mmHg what is the partial pressure of the Nitrogen? b) What is the volume of the Nitrogen at STP? Did not understand previous
asked by Connie 
Chemistry
Hello, i seem to be stuck on a problem and do'nt know why im not gettin the right answer.I have the he Ka and Kb values for each of the weak acids and bases from the chart and I keep getting zero and the second one 2.27*10^24 is this correct?? Thank uu
asked by Amy Wight 
reality
i told my boyfriend his eyes are cute and he asked me "what is so cute about his eyes?" And i cant find right words to say. plz help me //thank u (:
asked by alanaR. 
physics
A sailboat is sailing north on a lake parallel to the shore with a speed of 12 kilometers per hour (km/hr). If a man walking south along the shore has a speed of 4 km/hr, what is the northerly speed of the sailboat relative to the man?
asked by jill 
To all chemistry students
Please understand that one of our chemistry tutors is on vacation this week. Please be patient.
asked by Writeacher 
Chemistry
During a strenous workout, an athlete generates 1890.0 kj of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
asked by Toni Jones 
soc120
Thanks for the info. I have come up with my introduction on this. Can you take a look and see if this is good way to start? Racial discrimination is currently going on all the time in the United States and most people are unaware of it. The most popular
asked by Nikol 
college chemistry
Calculate the pH of a solution prepared by mixing 150.mL of 0.174 molal aqueous HF (density=1.10g/mL) with 37.5 g of an aqueous solution that is 1.3% NaOH by mass (density=1.02 g/mL)
asked by does anyone get this??? 
Chemisrty
calculate the final Celsuis Temp when 5.0 L of Flourine gas at 50 is cooled to give a volume of 3.75?
asked by Dee 
Trigonometry
Okay, I have been given a trigonometric equation to solve (sin^2(theta) + cos(theta) = 2). So far, I have been able to use the Pythagorean identity to get (cos^2(theta) + cos(theta)  1 = 0), which I then multiplied by 1 on both sides to get:
asked by Veronica 
English
I NEED HELP analyzing this piece: diction, tone, type of sentence for each (simple, compound, complex, etc.? I need to do a style analysis of five different paragraphs, including:diction, tone, and syntax. I need to indicate what each sentence is: simple,
asked by Jonathan 
statistics
what will a test measure in a person's responses on a given day
asked by diane 
Rate problems and proportions
A deli sells 30 salads for every 48 sandwiches. At this rate, how many salads will they sell for every 64 sandwiches?
asked by James 
Science
Acrostic for amplitude
asked by Taf 
calculus
sketch graph of a function f that is differentiable and that satisfies the following
asked by Anonymous 
6th grade math
Tonya's car averages 240 miles for each 10 gallons of gasoline. How many gallons of gasoline will the car need travel 216 miles?
asked by Liam 
math
14,950,000,000 convert this number to scientific notation
asked by Anonymous 
Calculus
What is the limit as t approaches 0 for (sint)/(1+cost)?
asked by Kourt 
Math
An art gallery has reserved ten locations for Maggie's show. Maggie has ten paintings but is uncertain how to display them. She insists on trying every possible arrangement before making her decision! If she takes 1 minute to set up and view each
asked by Andy 
Physics
A rock of mass m and a rock of mass 2m are both released from rest at the same height and fee no air resistance as they fall. Which statements about these rocks are true? (there may be more than one!) EXPLAIN HOW YOU KNOW THEY ARE TRUE AND EXPLAIN WHY THE
asked by Sam Potter 
finite math
a quality control engineer at a light bulb plant estimated that 1% of the bulbs it sells are defective. if you purcgase a package of 3 bulbs what is the probability that exactly one of them is defective?
asked by ophelia 
classifing shapes
hans back yard is shaped like a square all right angles.Classify the shape in as many ways as posible.
asked by rose 
Math
If a player makes an average of 60% of his free throw attempts, what is the probability he will make both shots of a oneandone (to have an opportunity to shoot a second free throw he must make the first)?
asked by Tom 
Calculus
If f is the function defined by f(x)=(x^2+4x)^(1/3) and g is an antiderivative of f such that g(5)=7, then g(1) Is congruent to
asked by Anonymous 
calculus
sketch graph of a function f that is differentiable and that satisfies the following conditions:(1)f'(x)>0, when x
asked by Anonymous 
finite math
a quality control engineer at a light bulb plant estimated that 1% of the bulbs it sells are defective. if you purcgase a package of 3 bulbs what is the probability that exactly one of them is defective?
asked by ophelia 
math
an executive committee of three is selected from a group of ten which expression best describes the number of combinations? A)10P3 B)10! C)D)10P3/31
asked by Sam 
Chemistry
Hello, i seem to be stuck on a problem and do'nt know why im not gettin the right answer.I have the he Ka and Kb values for each of the weak acids and bases from the chart and I keep getting zero and the second one 2.27*10^24 is this correct?? Thank uu
asked by Amy Wight 
English
Using Lamott's essay "Hunger" as a point of departure, do some research and write an essay defining the nature and origins of eating disorders such as anorexia and bulimia. What social, psychological, or chemical factors can lead to an eating disorder?
asked by TITI 
Pre Calculus
lnX + ln2 = 3 answer is 10.043 but I don't know how to get to this answer. Thanks for the help!!! :)
asked by Linda 
MATH
Find the number of 2 3/4 gal. cans which can be filled from a tank containing 90 3/4 gals. of oil?
asked by JUNIOR C 
PhysicsPlease help
I need a little direction with this question:If someone could provide the correct formula, I think I divide each reistor by 12V but I'm not sure. To find total resistance, do I just add the reciprocals? Three resistors connected in parallel have individual
asked by Sally 
Chemistry
How much sodium carbonate is needed to precipitate nickel sulfate
asked by Hal 
statistics
Suppose that 30% of the nation's TV viewers are watching a particular presidential press conference. Typically, a Nielsen survey will sample about 1000 viewers. Suppose random sampling. What is the probability that at most 28% of the viewers in the sample
asked by Santiago Sandoval 
math
In 2010 a city raised $5,999,400 in tax revenue by charging each taxpayer the same amount. For 2011 there has been a net loss of 12 taxpayers, necessitating an increase fo $200 per taxpayer in order to maintain the tax revenue of $5,999,400. How many
asked by Janice  Please Help 
math
Frank pays his employees weekly. He would like to start paying them four times the weekly amount on a monthly basis. Is a month equivalent to four weeks?
asked by Amy 
Science
Please help me! How much energy is released when125 grams of molten iron solidifies?
asked by Logan 
Chemistry
A solution consisting of 25.00 g Nh4Cl in 178 ml of water is titrated with 0.114M KOH. How many mL of KOH are required to reach the equivalence pt?
asked by Ashley 
Math Definicions
What does symmets mean?
asked by Kristiana 
Trigonometry
Having trouble with true/false questions in Trigonometry. They read as follows  True or False: For a trigonometric function, y=f(x), then x=F^1(y). Explain your answer. True or False: For a one to one function, y=f(x), then x=f^1(y). Explain your
asked by Veronica 
Physics (please help!!)
A skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we
asked by Otto 
Algebra 2
trying to learn how to facor. x^2  6
asked by michael 
Math
Find the area of a square picture who's length is 4 inches
asked by Anonymous 
social studies
culture is passed from generate to generation by?
asked by shiann 
3rd Grade Math Decimals
fortyhundreths fourtenths sixtenths sixteenhundreths
asked by Kristiana 
chem
calculate the freezing and boiling points of each of the following solutions. (a) 0.50 m glucose in ethanol for the freezing point i got 58 but it said i have the wrong sign...?
asked by hannah 
grammar
The coordinating conjunctions that can be used to combine two complete sentences with a comma are “for, and, nor, because, yet, so.
asked by Anonymous 
How many sig figs?
For this question: what is the boiling point of 0.39 mol ethylene glycol and 0.13 mol KBr in 155 g H2O? I got 102.1470968 and I tried it with 2 and with 3 sig figs but it's both wrong. I know that's the correct answer but I don't know how many sig figs I'm
asked by Hannah 
math
what is 5 3/4 divided by 1/3? please show work.
asked by kaleb 
Grade 12 Data Management math
I'm doing math through correspondence so material is not explained very well. I would appreciate if someone could explain this to me. This lesson is review of set theory and first degree equations. Indicate whether each of the following statements is true
asked by Alicia 
pre calc
lnX + ln2 = 3
asked by Linda 
Calculus
I need help with this question still!!! Find the values for a, b, and c such that the graph of y= ax^2 + bx + c has a relative maximum at (3,12) and crosses the yaxis at (0,1). Please Help!!!
asked by Kay 
generate formulas
A box has a base with an area of 53 cm2 and a height of h. Which equation can be used to find V, the volume of the box?
asked by johnnny 
Calculus
What is the limit as t approaches 0 for (sint)/(1+cost)?
asked by Matt 
Math
Twenty cookies need 1/4 cups of sugar. How much sugar is needed for 3 dozen?
asked by Klarissa 
Physics
A mass M of 5.80E1 kg slides inside a hoop of radius R=1.50 m with negligible friction. When M is at the top, it has a speed of 5.15 m/s. Calculate the size of the force with which the M pushes on the hoop when M is at an angle of 41.0°.
asked by Rach 
Physics
When mass M is at the position shown, it is sliding down the inclined part of a slide at a speed of 1.89 m/s. The mass stops a distance S2 = 2.1 m along the level part of the slide. The distance S1 = 1.18 m and the angle θ = 35.10°. Calculate the
asked by Tom 
algebra
Factor the polynomial below. x2  10x + 9
asked by johnnny 
math
ted put several different integers in order from least to greatest . he then put the same integers in order from greatest to least . both times the same number was third in order . explain how this is possible
asked by santos 
Physics
The radius of the earth is 6.4 * 10^6 m. What is the acceleration of a meteor when it is 8.4*10^6M FROM THE CENTER OF THE EARTH?
asked by Art 
statistics
A business uses a 7point scale about satisfaction with the services it provides to clients. The ratings are normally distributed with a mean of 4.8 and a standard deviation of .5. What percentage of clients rate their satisfaction 1) Above 5? 2) Above 6?
asked by Sarah 
math
write another name for the fraction 9/5ths
asked by bella 
algerba
rewrite division as mulitplication 37(78)
asked by elaine 
Math
Patty Kim earns $20,000 per year. She is paid 26 times per year and claims 1 exemption. If $17.31 is withheld from each paycheck, at what rate is she taxed?
asked by idk 
cross word puzzle
This is for tomorrow and i'm in trouble with this puzzle, please help:ACROSS 9 letters and start with (au)the hint is groups of people who watch or listen to a show, speech, or other performance. Down:It starts off with (aw) and the hint is: a synonym for
asked by Elkin 
grammar
Can you help me with my classifying sentences homework?
asked by anisha 
Physics
I launch a ball vertically precisely 8' in the air. Then I launch a ball vertically 10' in the air. How much longer will it take the ball to travel 10' versus 8'? Put differently, how much more time does it take the ball to go the 2' further (travelling up
asked by Tom 
3rd Grade Math
Could you check my answers? fivetenths 0.5 fivehundreths 0.05 threetenths 0.3 threehundreths 0.03
asked by Kristiana 
Nutrition (Blood Tests)
If there was an eight year old boy who wasn't get enough to eat and was not eating nutritious foods, what kinds of things would be wrong with him? What things would be wrong in his blood tests? This is what I'm thinking:  prolonged hunger  depression:
asked by Lena 
Math
How many lines of symmetry are in a pentagon?
asked by Kristiana 
Spanish (please correct me if I'm still wrong)
Give the correct form of the appropriate verb, saber or conocer, which would be used in writing the following sentences in Spanish. 12. Maria knew everyone. 13. Because he had already seen the movie, he knew what happened? 14. The student knows the answer.
asked by anon 
Law
Suzy Smith contracted to purchase a pool heater from Sunkissed Pools. As part of the $4,000 contract, Sunkissed agreed to install the pool heater, which was delivered to Smith’s home and left in the driveway. The heater was too heavy for Smith to lift,
asked by AnaBrigitte 
Geography
Where would be the best place to farm: a) Prairie b) Deciduous c) Conifers d) Swamps and Bogs
asked by Sara 
health
The Best and Worst of Two Systems · Compare health care delivery and management options available in the U.S with health care delivery and management options available in a different country of your choice. · Select one feature from each country’s
asked by Anonymous 
chemistry
is it possible to have an acid/base reaction and produce a precipitate as a product as well?
asked by Bon qui qui 
algebra 2
if the length and width of the rectangle are 5 and 11 inches respectivly what is the approimate circufrence of the circle if the rectangle is inscribed inside the circle?
asked by brittany 
nutrition
how can you tell if an egg is rotten in water does it float or sink
asked by Anonymous 
algerbra
rewrite division as multiplication and answere as fraction 37(78)
asked by elaine 
math
what is the next number below? 5,13,29,6_,_
asked by cindy 
math
what is 4/5 of $1.20?
asked by cindy 
calculus
Given the differential equations: (sin x)y′′+ xy′+(x − 1/9) y = 0: • Determine all the regular singular points for the Eq.; • Derive the indicial equation corresponding to each regular point; • Determine the form of two linearly independent
asked by Markus 
math
can you divide 35by 5
asked by elaine 
math
what is the value of the 8 in 1,864,973?
asked by cindy 
math
if loar's mom gave her 3/4 of a dollar.joe's mom gave him 4/5 of a dollar. Who got more
asked by bella 
math
what is the next number below 5,13,29,61,125,_?
asked by cindy 
science
help with thesis statement of moons gravity and relation to earthquakes
asked by kathy 
chemistry
What is the chemistry behind the “Breathalyzer” test. I'm supposed to explain the chemicals and structures involved with the reactions which produce the positive and negative results
asked by annonymous 
English
In the novel Push by Sapphire, how does the narration change as the novel progresses?
asked by Missy 
algebra
1) What is 20% of 30? 2) What is 30% of 20? 3) If m and n are any whole number, is m% of n always equal to n% of m? Explain your answer and support it with 2 examples.
asked by Anonymous 
math
i want to find the capacity of a tank in litres which has height 30cm, base 16cm, lenght 17cm and has a thickness of 0.5cm
asked by chukwunenye 
science
Calculate the energy required to raise the temperature of 150.0 g Ag from 273 K to 291 K.
asked by AS 
Geometry
What is the area of a regular hexagon with a side length of 14ft?
asked by Lauren 
physics
a very thin piece of copper wire has an electrical resistance of 20,000 Ohms. You connect its ends to a regular 2.0 Volt battery. How much power does it draw? Let's assume that this little piece of wire initially contained one trillion (that's a one with
asked by john 
math
how do you write 24th march 2011 in 5 letters withiut using numbers
asked by swetha 
social studies
"WITHOUT OUR TWO GREAT POLITICAL PARTIES CUTTING ACROSS ECONOMIC AND GEOGRAPHIC INTEREST, DEMOCRACY AS WE KNOW IT COULD NEVER HAVE BEEN MADE TO FUNCTION" THE AUTHOR OF THIS STATEMENT PROBABLY MEANT TO SUGGEST THAT? A.AN IMPORTANT FEATURE OF THE U.S.
asked by MUNEKITA 
physics
A certain roller coaster has a circular, vertical loop of radius 10 meters, such that at its top the riders are upside down. How fast does the roller coaster move at this point if the riders feel perfectly weightless when passing the top of the loop?
asked by pam 
CHEMISTRY
An equilibrium mixture contains 2.0cm 3 of 1.00mol dm3 of h2so4. Calculate the number of moles of H+ in this acid??? ???
asked by KHALIA 
CHEMISTRY
An equilibrium mixture contains 2.0cm 3 of 1.00mol dm3 of h2so4. Calculate the number of moles of H+ in this acid??? ???
asked by KHALIA 
Math
Find the radius of the given circumference C= 3.14, r=?
asked by Robin 
Physics (please help!!!!)
a skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we
asked by Otto 
math
subtract 512
asked by elaine 
history
what was the date that the Spanish conquered the aztecs???
asked by Erika 
algebra
6x+7 _____ = X. 5 Find x. Forgot what i'm supposed to do. Could someone explain?
asked by Nyk 
CHEM
0.16 M HC2H3O2 and 0.31 M of NAC2H3O2 titrated with what ml of 0.25 M HCL
asked by bID 
algebra
a survey of 2000 people was giuven their mode of transportation to work each day, the pie chart below gives the results of people surveyed, how many traveled by bike to work?
asked by ngo 
trigonometry
+cos 255+sin 165=
asked by varsha 
PreCalculus
Can someone please help me with the following question. 1) The weight of an object above Earth can be modeled by a function of the form w(h)=(r/r+h)^2*"w , where r is the radius of Earth 0" (approximately 3950 miles)," h" is the distance above Earth's
asked by Sam 
Pre Calculus
sec x = 2 , π ≤ x ≤ 3π Use a calculator to solve for x in the given interval 9)sinθ=0.1473, 0°≤θ≤90° A) 8.47° B) 8.38° C) 98.47° D) 8.47° 10) cosθ=0.7563,0°≤θ≤90° A) 37.10° B) 49.14° C) 49.14° D) 40.86°
asked by Able 
English  Fools Crow
Hello! Can someone explain to me the following sentence: We're in Class 2. Why do we write C with a capital letter? It is not classroom what is it then?
asked by Mark 
science
what would happen to day and night if the Earth rotated faster?
asked by nicole 
chemistry
A sample of Nitrogen(N2)& Helium has a volume of 250mL @ 30degrees celsius & a total pressure of 745 mmHg a)If the pressure is 32mmHg what is the partial pressure of the Nitrogen? b) What is the volume of the Nitrogen at STP?
asked by Connie 
Physics  Help!!
If you launch a ball precisely 8' vertically how long does it take to go from the ground to 8' and back to the ground? If you then launch the same ball precisely 10' vertically, how much longer will it take to return to the ground?
asked by Tom 
math
i want to use 30 centimeters of wood to frame a rectangular photo what is the greatest area for the photo could have
asked by Anonymous 
algebra
if the discriminant of (5u^2)+bu+2=0 is 41, what are all the values of b
asked by Marissa 
maths
determine if ( 5/6,2) is a solution to 6x 7y  9
asked by ngo 
chemistry
Would a solution that contains a mixture of NCl and HCl be an effective buffer? Explain
asked by chuma 
calculus
calculate the calues of a,b,c if the point p(1,2) is on the curve y=ax^2+bx+c and the tangent line if y=x at the point Q(0,0)
asked by invy 
math
what is the probability of 6,94,85,38,16,42,90,7,44
asked by avia 
math
A certain strain of virus grows in numbers at the rate of 50% per hour. If its present population is 49,000 what will be its population count in 4 hours?
asked by denishia 
math
there are 20pages in jamal book he reads 1/5 of the book how many pages did he read?
asked by nichole 
algebra
a sphere has a diameter of 6x cen write an expression to represent the volume of the sphere in terms of pie
asked by matthew 
Physics
Find the net force of gravity on the moon (Mm = 7.35 x 10^22 kg) from the earth and the sun (Ms = 1.99 x 10^30). Assume that the two forces are perpendicular to each other. Give the angle in relationship to the sun.
asked by Nick 
math
simplify 5/8 over 5
asked by JUNIOR C 
pre calc
lnX + ln2 = 3
asked by jenna 
math
Write two other ratios equal to 9/12?
asked by Lucas 
math
What are 10 numbers that have a median of 21, a range of 20, and a mode of 10?
asked by paige 
Spanish
Give the correct form of the appropriate verb, saber or conocer, which would be used in writing the following sentence in Spanish. 2. Because he had already seen the movie, he knew what happened? El ya sabía lo que pasaba porque ya vio la película. would
asked by anon 
history
what date did the spanish escape from tenochtitlan and then were defeated?
asked by Erika 
math
If an object is reflected twice over parallel lines, and corresponding points of the original and final translation image are 30 centimeters apart, how far apart are the parallel lines?
asked by nelson 
Chemistry
During a strenous workout, an athlete generates 1890.0 kj of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
asked by Toni Jones 
Math
Solve 7ã(a+b)
asked by Jaison 
Trigonometric Identities
Which of the following are trigonometric identities, I have narrowed it down to two  (cscx + cotx)^2 = 1 OR sin^2(x)sec^2(x) + 1 = cot^2(x)csc^2(x)
asked by Veronica 
Math
I'm doing math through correspondence so material is not explained very well. I would appreciate if someone could explain this to me. This lesson is review of set theory and first degree equations. Indicate whether each of the following statements is true
asked by Alicia 
Physics
A 3.9 g bullet leaves the muzzle of a rifle with a speed of 311 m/s. What total constant force is exerted on the bullet while it is traveling down the 0.82 m long barrel of the rifle? I converted 3.9 g to .0039 kg Used the equation t=d/r
asked by Rebecca 
math
if a triangle with square attached have areas of 6 square units for the smallest square and 10 square units for the largest square, what is the missing area? what are the side lengths for the triangle?
asked by holiday 
PreCalc H.W. Help :)
Can someone please help me with the following question. 1) The weight of an object above Earth can be modeled by a function of the form w(h)=(r/r+h)^2*"w , where r is the radius of Earth 0" (approximately 3950 miles)," h" is the distance above Earth's
asked by Sam 
math
please help me !!! ted has 8 autographed baseballs. all together the baseballs are worth $200.00 explain why you do not have enough information to make a bar diagram to find the value of each baseball.
asked by santos 
geometry
whats the area of a rectangle that has a base of 33 and a length of 19??
asked by Jyot 
PHYSICS URGENT DUE IN 15 MINUTES
The figure below (a) shows a sphere with a radius of r = 157 mm (density ñ = 1.24 g/cm³) suspended in water by a string. The ball is completely submerged in the water and the string is attached from the bottom of the water tank to the bottom of the
asked by Anonymous 
chemistry
Heyaa,, I need help to solve this problem!1 Sodium chloride has a giant ionic structure, it has a melting point of 801c. How could you use this information to set up an alarm that sounds when the temperature in a reaction vessel gets above 800c? Thanks x
asked by Sharon 
algebra
how to solve 2.4m/q=1.73 and 3.6m/q=1.27
asked by yanalin 
math
a right trianglehas legsthat measure 1cm and 12cm, what is the measure of the hypotenuse?
asked by holiday 
math
Your body consists of 7/10 water. Is more than 1/2 of your body water?
asked by destiny 
PreCalc (Please my class starts in an hour!! :)
Can someone please help me with the following question. 1) The weight of an object above Earth can be modeled by a function of the form w(h)=(r/r+h)^2*"w , where r is the radius of Earth 0" (approximately 3950 miles)," h" is the distance above Earth's
asked by Sam 
math
i want to buy a tv set, but the entertainment center i have is 30 inches by 40 inches, what is the largest tv set i can buy
asked by holiday 
math
Two fractions have the same numerator, but different denominators. Is that fraction with the greater denominator greater than or less than the fraction with the lesser denominator?
asked by destiny 
chemistry
A gas has a volume of 5.60 at 0. What final temperature in degrees Celsius is needed to cause the volume of the gas to change to the following, if (number of moles of gas) and are not changed?
asked by Anonymous 
math
the dimensions of a rectangle are such that its length is 3 inches more than its width. if the length were double and if the width were decreased by 1 inch, the area would be increased by 66inches ^2. What are the length and width of the rectangle?
asked by fernando 
algebra
A set of 2 similar triangles was drawn in a design. One of the triangles was ½ of the other. If the measures of the smaller triangle were 5, 7, and 12 cm, the measures of the larger triangle = 10,14 and 20 cm. true or false
asked by katie 
algebra
factor x^35x^2+4x
asked by Anonymous 
algebra
convert to decimal natation 8.93x10^7
asked by beth 
chemistry
If the pH of a 1.00in. rainfall over 1400 miles^2 (square) is 3.20, how many kg of sulfuric acid, H2SO4 are present, assuming that it is the only acid contributing to the pH?
asked by redgy 
physics
A 16000 kg sailboat experiences an eastward force of 17700 N due to tide pushing its hull while the wind pushes the sails with a force of 87500 N directed toward the northwest (45 degrees westward of North or 45 degrees northward of West). What is the
asked by Rebecca 
algebra
divide 3z18z z6 10 55z
asked by beth 
algebra
how do I rewrite this 4ã20
asked by beth 
FMU
After 2.02 g of Al has reacted completely with 0.400 L of 2.75 M HCl (the excess reactant), what is the molarity of the remaining HCl? 2Al(s)+6HCl(aq)>2AlCl3(aq)+3H2(g)
asked by Alex 
Math
a patch of dirt needs 3 5/6 ft of sod to cover it. If Nick decides to cover only 3/4 of the dirt, how much sod does he need?
asked by Tammy 
math
How can you compare 2 fractions by using a number
asked by destiny 
Chicago Virtual Charter School
A movie theater charges $7 for adults, $5 for schoolage children, and $3 for babies. A group of people went to the theater. There were the same number of schoolage children as babies and the number of adults was the same as schoolage children and babies
asked by Eunice 
Physics
About how much pressure do the feet of a 6000kg elephant exert on the ground? Assume each foot has an area of 0.10 square meters.
asked by Scooby 
math
How can you compare 2 fractions by using a number line?
asked by destiny 
Managerial Economics
Are organizations more risk adverse or individuals more risk adverse? Is one more risk tolerant? Use economic theory to explain your position.
asked by Kim 
math
you are playing a card game with a full deck of 52 cards. you win if you draw a red card that is a multiple of 5. what are your chances of winning on your first draw?
asked by shen 
Litracy
HELP!!! I don't remember how to make a dam sonnet with 10 syllables?
asked by Jake 
Science
Inclination angle of 38.0 degrees with respect to the horizontal. Suppose a truck on a street, for the truck to remain at rest, a static friction must exist. If an additional force with a magnitude equal to onefourth the weight of the truck is applied
asked by Taylor 
English
Why did King want a integrated community instead of blacks forming a separate nation?
asked by Amy 
business
which of the following is NOT one of the three steps to take when audience benefits are hard to identify or develop
asked by Lisa 
math
how do you fill in the table for y=1/2 (x8)
asked by adam 
business
If an audience is opposed to what you have to say or resistant to a change you are suggesting, a good approach is to
asked by Lisa 
english
Is the word Redskins a compound word?
asked by laura 
Geography
What caused the fall of the Roman Empire? a. defeat by Greece in the Pyrrhic War b. lack of cultural cohesion c. land region was too large to defend d. peasant rebellion
asked by Courtney 
World geography
This period was a time of great political unrest, which divided Europe into eastern and western sections. a. Cold War b. Imperialist c. Middle Ages d. Yalta Conference
asked by Courtney 
math
What are some strategies a student might use for finding the sum of 7 + 9 if they did not know the answer?
asked by Anonymous 
Physics
Two blocks, each of mass,m, are attached to the ends of a massless rod which pivots as shown in Fig. 840. Initially the rod is held in the horizontal position and then released. Calculate the magnitude and direction of the net torque on this system. This
asked by Emily Grossman 
algebra
multiply and simplify by factoring sqrt20a^11b*sqrt8a^12b^11
asked by Daniel 
Geometry
Find the area of the isosceles trapezoid with lower base 18cm, legs 6cm and base angles 30 degrees
asked by Marceo 
maths
find in implicit form, the general solution of the differential equation dy/dx = 2(e^xe^x)/y^2(e^x+e^x)^4
asked by grace 
algebra
If the cost of a cell phone has decreased 400% during the past 10 years, does that correspond to a cost decrease of four times?
asked by joe 
Physics
A 7.80g bullet moving at 590 m/s penetrates a tree trunk to a depth of 4.8 cm. Assuming the friction force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving.
asked by Jay 
literary
how do you write a genre in a book report
asked by shirley 
geometry, math
give the dimension of a rectangular prism with a capacity of 48 cubic feet
asked by Ashley Clark 
algebra
solve 3(x2)+4x=27
asked by micky 
Physics
a skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we
asked by Otto 
math/geometry
Two boxes must be wrapped. Both boxes are right rectangular prisms. The smaller box has a length of 12 inches. The larger box is similar to the first and has a length of 48 inches. Find the ratio of the amount of paper needed to wrap the large box to the
asked by me 
Finance
What is a significant disadvantage of the payback period? a. does not properly consider the time value of money, b. Is complicated to explain, c. Increase firm risk, or d.Provides a measure if liquidity.
asked by Tanya 
Chemistry
How much sulfuric acid is neede to dissole 200 pounds of nickel powder
asked by Hal 
Writing
I need help on fixing my paper. Could you grade me on a scale of 1 to 12. The World of Technology Technology, Technology, that’s all we use today. There’s Facebook, Twitter, Myspace, and so many more. My opinion on technology is that I agree because
asked by Raven 
chemistry
Why are both hexokinase and phosphofructokinase1 strongly inhibited by an ATP analog in which the oxygen atom joining the beta and yphosphorus atoms is replaced with a methylene group?
asked by brian 
Chem
Initially, you have 1.00g of BaCl2 (MM=208.23) and 1.00g of AgNo3 (MM=169.88). How many moles of BaCl2 do you have initially in the mixture?
asked by cendy 
math
In a circle whose radius is 6, find the area of a sector, in terms of pi, whose center angle contains 30 degrees
asked by Anonymous 
math
how do u find the diameter when they only give u the circumference?
asked by danny 
Math
I have a few basic physics problems. How do you calculate how long it will take for an object to hit the ground when it is dropped from a certain height? Specifically from 128 ft. Additionally how would you calculate how much velocity is needed to launch
asked by Emily 
math
In a circle whose radius is 6, find the area of a sector, in terms of pi, whose center angle contains 30 degrees
asked by Anonymous 
chem
Initially, you have 1.00g of BaCl2 (mm= 208.23) and 1.00g of AgNo3 (MM=169.88). How many moles of AgNO3 do you have initially in the mixture?
asked by cendy 
chemistry
would you expect lead chloride to dissolve in dilute HNO3? Explain
asked by roshan 
chem
Convert (1) from moles of BaCl2 to moles of AgNo3
asked by cendy 
critical cognition
Can someone help me evaluate this hypotheses? Evaluate the following hypothese using the five criteria ( The Scientific Method ) for a good scientific explanation. If the hypothesis is inadequate, formulate a new hypotheses and discuss why it is better. A.
asked by rita 
Math
solve the quadratic equation using the square root property. (2x+5)^2=12
asked by mikel 
Math Help
Mobile ad spending. The amount spent worldwide in advertising on mobile devices can be estimated by f(x) =0.4x^2+0.01x+0.9. Where x is the number of years after 2005 and f(x) is in billions of dollars. When will worldwide mobile ad spending reaches $41
asked by Miguel 
math
A baseball diamond has 90 ft between each base A sofball diamond has 60 ft between each base How many yards longer is the space between bases an a baseball diamond than a softball diamond?
asked by sans 
Matha
There are 6 girls and 5 boys. The teachet chooses 2 students random. What is thw probability of selecting a girl then a boy?
asked by Lala 
Statistics
The question is: In a study of 420,000 cell phone users in Denmark. It found that 135 developed cancer of the brain or nervous system. If we assume that such a cancer is not affected by cell phone, the probability of a person having such a cancer is
asked by Norilyn 
MATH
Can someone please help me with the following question. 1) The weight of an object above Earth can be modeled by a function of the form w(h)=(r/r+h)^2*"w , where r is the radius of Earth 0" (approximately 3950 miles)," h" is the distance above Earth's
asked by Sam 
math
a piece of ribbon is 4 1/2 feet long. a piece of blue ribbon is 1 yd long. How many feet longer is the piece of red ribbon than the piece of blue ribbon?
asked by Casey 
anatomy and physiology
a 73 year old woman suffers a severe cerebral hemorrhage after minor trauma. Blood work reveals that her blood clotting ability is impaired. Disease of which abdominal organ may contribute to this? Why?
asked by Anonymous 
Chemistry HELP!!
During a strenous workout, an athlete generates 1890.0 kj of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
asked by Toni Jones 
algebra
multiply and simplify by factoring sqrt20a^11b*sqrt8a^12b^11
asked by Daniel 
Algebra help
Match the equation 4x^62x^3+1=0. With a substitution from the column that could be used to reduced the equation to quadratic form: a) u=x^1/3 b) u=x^1/3 c) u=x^2 d) u=x^2 e) u=x^2/3 f) u=x^3 g) u=x^2/3 h) u= x^4
asked by Miguel 
Algebra help
Match the equation 4x^62x^3+1=0. With a substitution from the column that could be used to reduced the equation to quadratic form: a) u=x^1/3 b) u=x^1/3 c) u=x^2 d) u=x^2 e) u=x^2/3 f) u=x^3 g) u=x^2/3 h) u= x^4
asked by Miguel 
physics
how does the M.A. and the I.M.A. of the inclined plane vary with the inclination angle?
asked by Vivian 
Physics
how does the M.A. and the I.M.A of the inclined plane vary with the inclination angle?
asked by Vivian 
Math
On a multiple choice test you guess he answers to two questions. Each question has five choices. What is the probability that you both answers correct?
asked by Sophiee 
science
mathematical relationship between period and frequency
asked by danny 
English Literature
I have to do a literary essay on "Romeo and Juliet". My topic is, "Romeo's downfall was as a result of errors or mistakes he made in his judgement and the influence of fate.Discuss" Please could you help me get a few ideas/points?
asked by katiyar 
management major
can you help me to answer this question i reall could not make an answer. 1.what is industrial research?how does this area of management help the business organization in its product improvement?
asked by jessie