Questions Asked on
April 22, 2014

math
what are the mean median mode and range of the data set give the altitude of lake in feet: 12,9,14,3949,49,18, and 43? A. mean=28.5, median=29.1, mode=49, range=40 B. mean=29.1, median=49 , mode=28.5 , range= 41 C. mean=49 , median=29.1,
asked by HELP PLEASE!! 
probability
For any given flight, an airline tries to sell as many tickets as possible. Suppose that on average, 10% of ticket holders fail to show up, all independent of one another. Knowing this, an airline will sell more tickets than there are seats available
asked by juanpro 
Algebra  HELP!!!
Can someone help me and check these? 1. Graph the function and identify the domain and range. y = –.5x² (1 point)graph *domain: (–∞, ∞) range: [0, ∞) graph domain: (–∞, ∞) range: (–∞, 0] graph domain: (–∞, ∞) range: (–∞, 0]
asked by Sandy 
probability
Let Sn be the number of successes in n independent Bernoulli trials, where the probability of success for each trial is 1/2. Provide a numerical value, to a precision of 3 decimal places, for each of the following limits. You may want to refer to the
asked by juanpro 
Chemistry
Assuming an efficiency of 38.60%, calculate the actual yield of magnesium nitrate formed from 145.9 g of magnesium and excess copper(II) nitrate. I got 230.5g but it isn't right.. I got 6 mols of Mg then calculated molar mass of Mg(NO3)2 and got 148.31 and
asked by Clare 
Statistics PLEASE HELP ME!
The Wall Street Journal reported that automobile crashes cost the United States $162 billion annually (The Wall Street Journal, March 5, 2008). The average cost per person for crashes in the Tampa, Florida, area was reported to be $1599. Suppose this
asked by Vanessa 
probability
For each of the following sequences, determine the value to which it converges in probability. (a) Let X1,X2,… be independent continuous random variables, each uniformly distributed between −1 and 1. Let Ui=X1+X2+⋯+Xii,i=1,2,…. What value does the
asked by juanpro 
math
Marnie practiced her basketball dribbling. After two tries she had bounced the ball 88 times. On the second try she had 2 fewer bounces than 8 times the number of bounces she had on the first try.How many bounces did she have on the second Try
asked by shekinah 
genetics
1. Long wings (L) in fruit flies is dominant to short wings (l). If you had a fruit fly with long wings, what mating would you set up to test if it was LL or Ll genotype? 2. Jane's mother died of Huntington's disease (a dominant disorder): Jane says she is
asked by emir 
Math
Find X so that the pitch of the roof is 1/6. The number below the x is 30 feet in the figure. so how do I solve this?
asked by Christopher 
chemistry
Dinitrogen tetroxide decomposes to form nitrogen dioxide in a second order reaction: N2O4(g)> 2NO2(g) At 400K, the rate constant for this reaction has been measured to be 2.9x10^8 L/mol*s.suppose 0.222 mol of N2O4(g) is placed in a sealed 41.7L container
asked by Anonymous 
Science
1. How does seafloor spreading occur? A. New materials are being added to the asthenosphere. B. Earthquakes brake apart the ocean floor. C. Sediments accumulate at the area of spreading. D. Molten material beneath Earth's crust rises to the surface.*
asked by Steven 
Chemistry
Calcium hydroxide, Ca(OH)2, dissolves in water to the extent of 1.78 g per liter. What is the value of Ksp for Ca(OH)2?
asked by Shana 
math
Peyton has two pizzas.Each pizza is cut into 10 equal slices.She and her friends eat 14 slices. What part of the pizzas did they eat? Write your answer as a decimal.
asked by Diana 
math
Arthur made the scatter plot below of the temperature outside his house over the course of nine days at the beginning of winter. if this trend continues, what would be the most likely temperature outside Arthur's house on day 10? A. 20** B. 30 C. 40 D.50
asked by please help ms.sue 
physics
Things around you are emitting infrared radiation that includes the wavelength 1.44 105 m. What is the energy of the photons?
asked by Anonymous 
physics
A bowling ball encounters a 0.760m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. The translational speed of the ball is 4.43 m/s at the
asked by Anonymous 
math
marissa pours 1 1/2 cups of punch in each glass how many fluid ounces is each serving?
asked by jason 
English 10
All of the following are writing strategies associated with editing except • checking your spelling. • cleaning up formatting. • developing a subtopic. • fixing punctuation errors.
asked by Sandra 
math
please check my answers A number cube with the numbers 1 through 6 is rolled. Find the given probability. 1. P(number < 2) (1 point) A. 1/6 *** B. 2/6 C. 4/6 D. 3/6 2. P(number ≥ 3) (1 point) A. 4/6 **** B. 1/6 C. 2/6 D. 5/6 3. P(complement of 4) (1
asked by please help ms.sue 
PHYSics
a child with a mass of 29 kg sits at a distance of 4m from the pivot point of a seesaw. where should a 15 kg child sit to balance the seesaw?
asked by nicole 
Physics
A charge q1 of 5.00*10^9C and a charge q2 of 2.00*10^9C are separated by a distance of 40.0cm. Find the equilibrium position for a third charge of 15.0*10^9C
asked by Anonymous 
Math
Luke rode his bicycle 2/5 of a mile from his house to the library.He then rode 1/2 of a mile from the library to the mall.Sketch a visual model to find the total distance that Luke rode.
asked by Anonymous 
Physics 1
A cart with mass 340 g moving on a frictionless linear air track at an initial speed of 1.5 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. After the collision, the first cart continues in its original direction at
asked by Alex 
chemistry
How many grams of dry NH4Cl need to be added to 2.00L of a 0.100M solution of ammonia, NH3, to prepare a buffer solution that has a pH of 8.86? Kb for ammonia is 1.8×10−5.
asked by Jennifer 
Physics
A charge q1 of 5.00*10^9C and a charge q2 of 2.00*10^9C are separated by a distance of 40.0cm. Find the equilibrium position for a third charge of 15.0*10^9C
asked by N 
Physics waves
thanks in advanced! A guitar emits a 440 Hz tone. How far apart are the crests in room temperature air (20 degrees celsius)? How long does it take the string to vibrate from crest position to trough position (across twice the amplitude)?
asked by Liz 
math
a pottery maker can make 24 vases in 8 days. If the pottery maker works 6 hours each day, how long does it take to make 1 vase. A 2 hours B 3hr C 4hrs D 6 hours
asked by joy 
physics
robin is standing terrified at the end of a diving board, which is high above the water. if robin has a mass of 75 kg and is standing .6m from the board's pivot point, what torque is robin exerting on the board
asked by nicole 
Physics
Jack is driving with a pail of water along a straight pathway at a steady 25 m/s when he passes Jill who is parked in her minivan waiting for him. When Jack is beside Jill, she begins accelerating at the rate of 4.0 × 10−3 m/s2 in the same direction
asked by Corey Brown 
math check
x:1,2,3,4,5,6,7,8,9  y:0.8,2.1,3.1,3.8,5.2,8.4,6.9,8.1,9 (which point would be considered an outlier? my ANS:(9,9)? IS IT RIGHT?
asked by me 
math (please check answer)
x:1,2,3,4,5,6,7,8,9  y:0.8,2.1,3.1,3.8,5.2,8.4,6.9,8.1,9 (which point would be considered an outlier? my ANS:(9,9)? IS IT RIGHT?
asked by person 
Chemistry pH
What is the pH of 4.7 M CH3NH3Cl. mehylamine, CH3NH2, Kb = 4.4 × 104. Do I find Ka first then take the log(Ka) to find the pH of 4.7M CH3NH3Cl? or do I need to make I.C.E. table?
asked by Dina 
social studies (check answers)Mrs.Sue
Please check and Thanks so muchh. 1.A 2.B 3.C Brazil’s culture reflects what unique aspect of its colonial history? A. its Roman Catholic missionary roots B. its ties to the West African slave trade C. its rule and settlement by the Portuguese D. its
asked by matt 
probability
Let X be a continuous random variable. We know that it takes values between 0 and 3, but we do not know its distribution or its mean and variance. We are interested in estimating the mean of X, which we denote by h. We will use 1.5 as a conservative value
asked by juanpro 
statistics
The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean weight of 55 gm. The process standard deviation is known to be 0.77 gm. A random sample of 49 candy bars yields a mean weight of 55.82 gm. Find the test
asked by Anonymous 
chemistry
the metal gold, with an atomic radius of 144.2pm crystallizes in a facecentered cubic lattice. what is the density of gold?
asked by Anonymous 
Setswana
Ke kopa dintlha tsa go kwala tlhamo ka lehuma mo aforika. E se fete tsebe tse pedi
asked by Mpolokeng 
chemistry
consider the following equilibrium. 4NH3(g) +3O2(g) 2N2(g) + 6H2O(g) suppose 0.30mol of NH3 and 0.40mol of oxygen are added to a 5.0L container. If x mol of water is present at equilibrium, what is the equilibrium concentration of oxygen?
asked by Anonymous 
Physics
A glass window pane has an area of 3.50 m2 and a thickness of 0.600 cm. If the temperature difference between its surfaces is 23.0°C, what is the rate of energy transfer by conduction through the window?
asked by Sarah 
math
given the data 12,39,21,18,24,17,12,25: A. what is the outlier in the data? B. what is the mean with the outlier? C. what is the mean without the outlier? A. 12;;21;18.4 B. 12;18.4;21 C. 39;21;18.4 D. 39;18.4;21 i think B or D
asked by please help ms.sue 
physics
A missile is released from a fighter plane traveling horizontally at an altitude of 10000 ft. if the target was hit at 2.09 miles, in mi/h, was the plane traveling?
asked by nano 
statistics
We guess, based on historical data, that 30% of graduating highschool seniors in a large city will have completed a firstyear calculus course. What's the minimum sample size needed to construct a 95% confidence interval for a proportion with a margin of
asked by nicole 
math (check answer plz)
type of cookies/Adults/children/total chocolate /5 /10 /  Peanut /8 /6 /  oatmeal /7 /4 /
asked by xpersonx 
chemistry
what is the hydronium ion concentration of a 0.35M oxalic acid, H2C2O4. solution? for oxalic acid, ka1= 5.6x10^2 and ka2=5.1x10^5. Identify and calculate the concentrations for the representative species in solution.
asked by Anonymous 
CHEMISTRY
Thiosulfate ion S2O32− is oxidized by ioidine according to the following reaction. 2S2O32−(aq) + I2(aq) ¨ S4O62−(aq) + 2I−(aq). If in a certain experiment, 0.0020mole of thiosulfate ion is consumed in 1.0 L of solution in 1 second, what is the
asked by Juan Pablesteban Gonzalez 
Inorganic Chemistry
what is the product of reaction K3(Al(C2O4)3).3H2O with KMnO4 in the present of NaOH?
asked by Kiara 
Physics waves check answer please
I would like to know if my answer is correct. Thanks in advanced! A person with their head sideways in the water sees a beaver slap its tail on the lake surface 1.2 km away. What is the time difference between the sound heard in the ear listening in the
asked by Liz 
Econ
The process that produces Sonora Bars (a type of candy) is intended to produce bars with a mean weight of 55 gm. The process standard deviation is known to be 0.77 gm. A random sample of 49 candy bars yields a mean weight of 55.82 gm. Find the test
asked by alex 
social studies (check answers)Mrs.Sue
THanks and thanks again... 1.D 2.C 3.A Brazil’s culture reflects what unique aspect of its colonial history? A. its Roman Catholic missionary roots B. its ties to the West African slave trade C. its rule and settlement by the Portuguese D. its peaceful
asked by matt 
IT
What are the most important contemporary hardware and software trends?
asked by Stacy 
math
brain cut an extra large round pizza into 12 pieceas .Seven of then were eaten. WQhay angle measure of pizza is left
asked by nick 
statistics (4)
For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. a. To the right of 2.120. (Use 3 decimals.)
asked by Vanessa 
chemistry
the autoionization of water, as represented by the equation below, is known to be endothermic. What can be correctly said of what occurs as the temperature of water is raised?(please explain) H2O(l)+H2O(l)H3O+(aq) + OH(aq)
asked by Anonymous 
Algebra
There are 60 marbles in a bowl. Their colors are red, blue, and yellow. 1/3 of the marbles are yellow, 1/4 of the marbles are blue. How many red marbles are there in the bowl?
asked by Anonymous 
math
Naomi has 50 red beans and white beads.the number of red beads is 1 more than 6 times the number of white beads. How many red beads does Naomi have
asked by shekinah 
statistics (6)
The International Air Transport Association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maximum possible rating is 10. Suppose a simple random sample of 50 business travelers is selected and each traveler
asked by Vanessa 
writing
Write a letter of complaint.Follow the rules for fullblock style.The complaint may be about anything you wish (such as malfunctioning equipment,poor building maintenance,or disruptive noises form a nearby office.)You can make up all the details you need
asked by marquetta 
Math
Angie needs to have $15,000 at the end of 6 years. How much should she deposit weekly into an ordinary annuity if it earns 6.5% interest compounded weekly?
asked by Mai 
physics
If a proton were traveling the same speed as electrons in a TV picture tube (about 7.2 107 m/s), what would its de Broglie wavelength be? The mass of a proton is 1.67 1027 kg.
asked by Anonymous 
Physic
A bullet strikes a ballistic pendulum whose target block has a mass of 4kg. The block is observed to rise a distance of 3cm, and the bullet is weighed and found to have a mass of 20g. What is the speed of the bullet when it strikes the block? (Answer:
asked by Anonymous 
accounting
On December 31, 2013, University Theatres issued $500,000 face value of bonds. The stated rate is 8%, and interest is paid semiannually on June 30 and December 31. The bonds mature in 15 years. If required, round your answers to the nearest whole dollar.
asked by brenda 
Physics/ Chem
Find the entropy change when 51g of steam condenses to water at 100 ∘C.
asked by Lindsay 
Chemistry
PCl5 > PCl3 + Cl2 A 0.318 mol sample of PCl5(g) is injected into an empty 4.15 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.
asked by Jordyn 
chemistry
1)A sample of CO2 gas which weighs 0.85 grams has a volume of 1.30 liters when collected at 30°C. What would be the pressure of the gas sample? 2) A gas sample has an original volume of 600 ml when collected at 720 mm and 35°C. If a change is made in the
asked by Anonymous 
Chemistry
Estimate the solubility of calcium fluoride, CaF2+, (a) in moles per liter and (b) in grams per liter of pure water. CaF2+(s) = Ca2+(aq)+2f(aq)
asked by Shana 
english
In the giver why was Gabriel in danger of being released?
asked by steve 
chemistry
A beaker with 1.40×102mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.10mL of a 0.370M HCl solution to the beaker. How much will the pH
asked by Jennifer 
Physics waves help please
A police officer with good ears hears an approaching motorcycle. The engine sound he eats as the bike approached is 195 Hz. a) Is the actual sound the bike makes higher or lower in pitch? b) After the bike passes he hears 147 Hz as the perceived pitch. If
asked by Liz 
Math
Young and Company owes bond holders $5,500 interest at the end of each quarter for the next five years. How much they deposit now at 8% interest compounded quarterly to yield an annuity payment of $5,500?
asked by Mai 
Math
Angie needs to have an annuity payment of $1,300 at the end of each year for the next 10 years. How much should she deposit now at 10% interest compounded annually, to yield this payment?
asked by Mai 
math
Juanita is packing a box that is shaped like a rectangular prism.The box is 18 inches long and 9 inches tall.the total volume of the box is 1,944 cubic inches.use the formula V=lwh to find the width of the box.show work.PLEASE HElP!
asked by zion 
Math
Chris and Carol just bought a $14,000 van and financed it for 5 years at 7% interest. What are the monthly payments?
asked by Mai 
Physics
Is there anyway you can answer these questions with the information provided. Its using the moving man program. Procedure Place the man so that he is positioned at the 0.00 metre (m) mark. Set the initial velocity at 2.00 m/s and the acceleration at 0.50
asked by Corey Brown 
physics
) A hydrogen atom has its electron in the n = 5 level. The radius of the electron's orbit in the Bohr model is 1.323 nm. Find the de Broglie wavelength of the electron under these circumstances. What is the momentum, mv, of the electron in its orbit?
asked by Anonymous 
statistics (7)
The average cost per night of a hotel room in New York City is $273 (SmartMoney, March 2009). Assume this estimate is based on a sample of 45 hotels and that the sample standard deviation is $65. a. With 95% confidence, what is the margin of error (to 2
asked by Vanessa 
statistics (10)
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. What
asked by Vanessa 
physics
In a typical electron microscope, the momentum of each electron is about 1.4 1022 kgm/s. What is the de Broglie wavelength of the electrons?
asked by Anonymous 
physics
Gamma rays (γrays) are highenergy photons. In a certain nuclear reaction, a γray of energy 0.306 MeV (million electronvolts) is produced. Compute the frequency of such a photon.
asked by Anonymous 
chemistry
What will happen if 50mL of 0.022M Na2S2O3, 50mL of 0.010M AgNO3, and 50mL of 0.097M KCl are mixed together? For AgCl, ksp=1.8x10^10 ; for Ag(S2O3)2^3, Kf= 2.9 x 10^13.
asked by Anonymous 
physics
Three objects lie in the x, y plane. Each rotates about the z axis with an angular speed of 4.44 rad/s. The mass m of each object and its perpendicular distance r from the z axis are as follows: (1) m1 = 6.00 kg and r1 = 1.00 m, (2) m2 = 4.50 kg and r2 =
asked by Anonymous 
Math
Which expression is equivalent to 9(4+r)?
asked by Natalie 
math
Earl Watkins is ready to retired and has saved up $250,000 for that purpose. He places all of this money into an account which will pay him annual payments for 20 years. How large will these annual payments be if the account earns 17% compounded annually?
asked by Mai 
chemistry
how many grams of CO2 are produced when 88 grams of O2 are reacted with an excess of butane?
asked by Anonymous 
physics 1
A person who weighs 869 N is riding a 98N mountain bike. Suppose the entire weight of the rider plus bike is supported equally by the two tires. If the gauge pressure in each tire is 7.80 x 105 Pa, what is the area of contact between each tire and the
asked by Anonymous 
Physics
A small plane can travel at 200 km/h in still air. If a 50.0 km/h wind is coming from the east, determine the ground velocity of the plane if the pilot keeps the plane pointed [N].
asked by David DiFranco 
Math mrs.sue plz help i a confused.
1. Find the slope of a line that is parallel to the line containing the points (3, 4) and (2, 6). (1 point) m = 1 m = 2 m = –2 m = 1/2 2. Find the slope of a line that is perpendicular to the line containing the points (–2, –1) and (2, –3). (1
asked by Raina 
finance
How much must be deposited into an account to generate a $2,400 payment every three months for the next four years if the account earns 10% compounded quarterly
asked by dawn 
probability
Let N,X1,Y1,X2,Y2,… be independent random variables. The random variable N takes positive integer values and has mean a and variance r. The random variables Xi are independent and identically distributed with mean b and variance s, and the random
asked by juanpro 
chemistry
what is the mass percent of an aqueous sodium hydroxide solution in which the molarity of NaOH is 4.37M? the density of the solution is 1.1655 g/mL.
asked by Anonymous 
Networking
firm is assigned the network part 128.171. It selects a 10bit subnet part. a) Draw the bits for the four octets of the IP address of the first host on the first subnet. (Hint: Use Windows Calculator.) b) Convert this answer into dotted decimal notation.
asked by Steve 
math
a bag has 6 green marbles, 4 red marbles, 5 yellow marbles, and 3 purple marbles. what is the probability of choosing a purple marble? A. 1/6 B. 6/18 C. 3/20*** D. 1/9
asked by please help ms.sue 
Science
How do gravitational and electrical forces act on a maglev train?
asked by Anonymous 
biology
The two main structures that make up a kidney are the A. hilus and cortex B. cortex and medulla c. renal pelvis and medulla
asked by Linda 
English
He is a good cook. (What does this sentence above mean? Which ones are similar to this sentence among the following?) 1. He can cook very well. 2. He cooks well. 3. He really cooks well. 4. He does cook well. 5. He cooks very well. 6. He does cook very
asked by rfvv 
Math
Andy needs to pay off a loan of $18,000 in 5 years. Find the amortization payment he would need to take each semimonthly pay period (twice a month) at 6% compounded bimonthly, in order to pay off the loan.
asked by Mai 
physics 1
Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 5.6 x 1028 kg and 1.5 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 107 m3) were made from this
asked by Anonymous 
angle measurements HELP ME PLZ QUICKLY!!!
name the type or triangle with angle measurements of 30 degrees , 60 degrees, and 90 degrees. A. a acute triangle B. a equilateral triangle C. right triangle D. a Obtuse ( I think its a right am I right? btw I no what this triangle would look like thought
asked by mia 
math
) Determine whether the following two planes x + 4y − z = 7 and 5x − 3y −7z = 11 are parallel, orthogonal, coincident (that is, the same) or none of these.
asked by Carrolyn 
MATH
Raul reads 22 pages per hour. How many pages did he read in x hours? write an algebraic expression to represent th situation.
asked by Skye 
phisecs
water is moving with a speed of 5 m/s through a pip with a crosssectional area of 4cm^2 . the water gradual descends 10 m as the pipe crosssectional area increases 8cm^2 . if the pressure at the upper level is 1.5*10^5 , the pressure at the lower level
asked by w 
Language arts verbs
Aaron plans to attend college once he completes this course workbook
asked by Anonymous 
chemistry
which of the following solutes, dissolved in 1kg of water, would be expected to provide the fewest particles and to freeze at the highest temperature? (NH4)2SO4 , CaCl2, and/or NaCl.
asked by Anonymous 
Algebra
a cylindrical water tank has a volume of 20π cubic feet . the height of the tank is 1 foot more than 2 times of its radius . find the radius and height of the tank
asked by Anonymous 
Physics
A small plane can travel at 200 km/h in still air. If a 50.0 km/h wind is coming from the east, determine the ground velocity of the plane if the pilot keeps the plane pointed [N].
asked by Corey Brown 
physics
A ball of mass m=0.25 kg is dropped from rest. What is the speed of the ball after it falls two meters?
asked by Elle 
Physics
A 12,000kg railroad car traveling at 12.0m/s couples with an identical car sitting on the tracks. What is the speed of the joined card?
asked by Shon 
Physics
A 10.0g bul let traveling horizontally at 365 m/s strikes and becomes embedded in a 2.25kg block of wood placed on a large table. What will be the speed of the bullet block combination immediately after impact ?
asked by Shon 
chemistry
What is the % yield of of a reaction in which 40.00g of tungsten(VI)oxide (WO3) reacts with excess hydrogen gas to produce metalic tungsten and 5.40mL of water. (assume the density of water is 1.00g/mL)
asked by Jake 
writting
One of the cups are missing
asked by Anonymous 
physics
How fast does water flow from a hole at the bottom of a very wide, 7.8m deep storage tank filled with water? Ignore viscosity.
asked by anonymous 
math (SIMPLE INTEREST)
at what rate of simple interest will a sum of money double itself in four year ?
asked by fizz 
English
How do I make this more positive? Dear renter: Effective march 1, the rent for your parking space will go up $10 a month. However, our parking lot is still not the most expensive in town. Many of you have asked us to provide better snow and ice removal and
asked by Maci 
us history
Describe the major military confrontations between the Native Americans and whites on the postCivil war frontier
asked by Harold 
Physics
An airplane requires 420 m of runway to take off from an airstrip. If the plane starts from rest and it takes 32 s to lift off, with what velocity does it leave the ground? What was the average acceleration of the plane?
asked by Corey Brown 
math
Reggie knows the length and width of a rectangle. How can he find the perimeter of the rectangle
asked by sam 
english
In the book Giver  the committee of elders consulted the giver for what?
asked by steve 
Probability
the expected number of defects in a particular size is 5. What is the probability of getting one or less defects in the sample
asked by Nedge5q 
Calculus
At 8:00am, ship A is 120km due east of ship B. Ship A is moving north at 20km/hr, and ship B is moving east at 25km/hr. How fast is the difference between the two ships changing at 8:30am?
asked by Mitzi 
Geometry
karen is buying wallpaper for one wall of her bedroom which is 12ft by 13ft if the wallpaper is sold in tolls of 5 ft each how many rolls will she need to purchase
asked by Popppppmusic 
calculus
x(t)=3t^340.5t^2+162t find where object is speeding up or slowing down
asked by Anonymous 
algebra
when P dollars is invested at interest rate (I), compounded annually, for (t) years, the investment grows to (A) dollars, where A=P(1+I)^3. Find the interest rate if $40,960 grows to $49,130 in 3 yrs.
asked by david 
Physics
A lifeguard who can swim at 1.2 m/s in still water wants to reach a dock positioned perpendicularly directly across a 550 m wide river. 1. If the current in the river is 0.80 m/s, how long will it take the lifeguard to reach the dock? 2. If instead she had
asked by Corey Brown 
Geometry MATH
the vertices of a quadrilateral are A(4,3), B(2,3), C(4,6) and D(2,6) Find the area of quadrilateral ABCD
asked by Popppppmusic 
BIOLOGY
If a PCR product is 659 bp, how many D1S80 repeats are present in that DNA molecule?
asked by BIOLOGY 
physics
A small ball with a mass of 0.05 kg moves along a circular orbit with a radius of 0.9 m at a speed of 9.0 m/s. What is the angular momentum of the ball? If the angular momentum of this ball were quantized in the same manner as the angular momentum of
asked by Anonymous 
english
Do you know when to ride a bike? Do you know when you should ride a bike?  1. Yes, I do. I have to ride a bike between 5 and 7 p.m.  2. Yes, I do. I should ride a bike during the daytime.  3. Yes, I do. I must ride a bike on weekends. (Are both the
asked by rfvv 
Physic
A 135 g baseball traveling at a speed of 36 m/!@#$%^&s a bat and moves back along its incoming trajectory with a speed of 47 m/s. a) What is the impulse delivered to the ball by the bat? (Answer: 11.2kg * m/s) b) If the duration of the batball collision
asked by Anonymous 
physics 1
Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 5.6 x 1028 kg and 1.5 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 107 m3) were made from this
asked by Anonymous 
Math
Which quadrilateral has four congruent sides, its opposite sides are parallel, and does not have four right angles?
asked by Tony B. 
Statistics
The ABC SelfConcept Inventory has a split half reliability coefficient of 0.90 and the XYZ SelfConcept Inventory has a Spearman Brown reliability coefficient of 0.90. And if all factors are equal, which instrument would be chose to use?
asked by Natalie 
Chemistry
Write the class/family of the following compounds and the functional group in each compound. a. 3methylcyclohexene b. Cis3octene c. 4methyl2heptanone d. 3bromobenzaldehyde e. 3bromo5chlorotoluene f. 3chlorophenol g. 6methyl2heptyne Please
asked by Christina 
Chemistry pH
What is the pH of a solution that contains 0.30 M HC2H3O2 and 0.95 M C2H3O2? Use Ka = 1.8 × 105 for HC2H3O2.
asked by Dina 
health
how is cardiac muscle similar to smooth muscle a. both are striated b.they share no similarities c. they share no differences d. both have one central nucleus
asked by Anonymous 
math
A.) start by calculating how long it will take you to save enough money and pay cash with your potential $300.00/month savings, taking into account the $1000.00 you have already saved. B.)Now imagine you have invested your original $1000.00 savings. I.)
asked by sim 
algebra
Show that the four points (2,0,1), (−1,2,3), (3,2,2) and (3,−6,−3) lie in a plane.
asked by Carrolyn 
math
If tree is broken 18 feet from its base. The top lands 24 feet from the base. How tall is the tree?
asked by marcus 
math Calc
a spherical balloon is filled with water. if the water is leaking out at a rate of 2 cm^3/min, find the rate at which the radius is changing when the volume is v=1000cm^3?
asked by Louis 
Physics
What is the partial pressure of water on a day when the temperature is 25C and the relative humidity is 33% P=___Pa
asked by Jay 
Math
The distance d1 in miles, a small plane is from its final destination is given by d(t) = 250 – 100t, where t is the time, in hours, remaining for the flight. Find and discuss the meaning of the intercepts of the graph of the function. (You must first
asked by Debbie 
pjysics
A capacitor that has 10 cm diameter plates, 0.1mm apart, is charged at 100 V and the battery removed afterwards. What are the charges on each of the platesimmediately after charging the capacitor? What is the voltage if the distance between plates is
asked by tj 
Math
Karen, John , Sue, Tony , and Liz go to dinner. The total bill comes to $84.00, and they decide to leave a 15% tip. If they each decide to pay equally, what is the amount that each person must pay towards the total bill?
asked by Lycia 
math
Javierminuteis bike for a total of 41 minutes. Before lunch,he rode For 1 minute less Than 5 times the number of minutes he rode after lunch. How many minutes did Javier ride before lunch?
asked by shekinah 
math
Allison needs 2 yards of blue ribbon, 1/2 yard of yards of yellow ribbon and 3/4 yards of green ribbon at $ 2.00 a yard. How much money do she need for the ribbon.
asked by brandon 
Algebra1
Find the sum of the first 33 terms of the arithmetic sequence whose first term is 3 and whose 33rd term is 253.
asked by Aly 
Physic
If a 35 g arrow moving at 160 km/h penetrates a block of wood suspended by a rope, what impulse is delivered to the block? (Answer: 1.56kg * m/s) What velocity will the wood block acquire if its mass is 7.0 kg? Ignore the mass of the arrow compared to that
asked by Anonymous 
math (SIMPLE INTEREST)
1.find a)simple interest earned b) simple amount for the following investment ii)RM15000 for 5 1/4 years 6 at 9 percent per annum
asked by fizz 
Algebra 2
Ordered pair is from an inverse variation: (3,1/3) how do I find the constant of variation?
asked by Linda 
math (SIMPLE INTEREST)c
calculate the exact and approximate number of days i) from 19 november 1995 to 1 may 1996 then,i want to know how i can differences between exact time approximate time. sometimes i cannot understand how to find the approximate time
asked by fizz 
Algebra
Graph the linear equation y=4/5x+5 I know how to plot the points. I just need help figuring out what numbers to plot.
asked by Christopher 
water chemistry
35.0mL sample of 0.150M acetic acid9HC2H3O2)(Ka=1.8*105) is titrated with 0.150M NaOH solution. calculate the pH AFTER 17.5 Ml volumes of base have been added.
asked by mbuyelo 
math
A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c
asked by Jeff 
English help
A music conductor is one who ________. To lead one in is to ________, and abduct is to ________. Chrono means "time" so to "synchronize" means to __________. Since phon means sound, symphony must be _______. If thesis means "idea", then synthesis must mean
asked by Anonymous 
PhyiscsEnergy conservation
An escalator in a shopping centre carries people up through a height h at a vertical speed of v, but you’re in a hurry when you step onto it, so you climb the moving steps (each with a height of h ) at a rate of n steps/s. Determine: 4.1 the amount of
asked by Debby 
the cell
Which of these is the smallest structure? A. Dipeptide B. Amino acid C. Protein D. Polypeptide
asked by gg 
Language arts Mrs.Sue check Plz
A factory might emit (1 point) pollution. smokestacks. resources. 2. How do the members of Don’t Be Crude make a persuasive appeal? (1 point) by embarrassing people by educating people by encouraging people by making people laugh 3. What did Gina Gallant
asked by Raina 
Math 10
Algebraically, determine the vertex form of a quadratic relation, if the vertex is at (1, 2) and the point (1, 10) is on the parabola. Show all of your steps. I know that the formula is y=a(xh)suared+ k but how do i apply these numbers to this formula?
asked by Serena 
math (SIMPLE INTEREST)
1.find a)simple interest earned b) simple amount for the following investment i)RM20000 for 4 years 6 months at 11% per annum
asked by fizz 
Math
Given a total profit of p(x) = 1.4x0.02x^220 let x represent a number of days and find profit achieved and when that profit is made
asked by Jo 
MATH GEOMETRY
The perimeter of rhombus JKLM is 40. If MN=8, then find the area
asked by Popppppmusic 
Math
Graph the equation. Be sure to simplify equation before graphing it. 18+2y=7y I got the answer y=2 because I subtracted 2 from both sides got 9 then divided by 18 and got 2. y=2. So now can someone help me with graphing the points?
asked by Christopher 
English help
From the words below, supply the words needed to complete the sentences. Prodigious, Impartial, Profusion A. While the big money contributors had remained IMPARTIAL at the beginning of the campaign, when it narrowed down to the two chief contenders, a
asked by Anonymous 
math
A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c
asked by Skye 
Science
A horizontal force 10 N is necessary to just hold a block stationary against a wall . The coefficient of friction between the block and the wall is 0.2 . The weight of the block will be ?
asked by Lalit 
MATHS
Ali went to the store to buy vegetables he bought 16 ounce of potatoes 1.5 pounds of onions,4 ounce of celery 1 pound of tomatoes and 4 ounce of garlic what is the total weight of the vegetables in pounds/
asked by pinks 
calculus help
find the position function s(t) given acceleration a(t)=3t, if v(2)=0, and s(2)=1. the answer is s(t)=(t^3/2)6t +9 but I don't know how to solve this. Can someone help me with this? Thank you!
asked by Anonymous 
cheMYSTERY
A 20.00 mL of 0.200mol/L magnesium chloride solution is added to a 95.00 mL of 0.800 silver (I) nitrate solution,Determine the concetration of the silver ions at the end of the reaction and the magnesium ions. and a precipitate is formed.
asked by sandeep singh 
Calculus
Use usubstitute to compute the following: A) ∫((x)/((x^2)+5)) dx B) ∫((sin(ln(x)))/(x)) dx
asked by ACDub 
math
A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c
asked by Sally 
analytical chem
10.00mL of 0.100mol/L HCl solution is add to 10.00mL of 0.100mol/L NaOH solution. what is the pH of the resulting solution?
asked by deg 
CHEMISTRY!
A 20.00 mL of 0.200mol/L magnesium chloride solution is added to a 95.00 mL of 0.800 silver (I) nitrate solution, and a precipitate is formed. a.Determine the concetration of the nitrate ions at the end of the reaction I was able to calculate the things
asked by michael 
shakespeare
places in his life can it be where he was born what else conflicts in his life idk women in his life anne hathaway his wife men in his life can it be his fayher and the ppl he owrked with and his publisher children in his life susanna hamnet and judith
asked by Reina B. 
PreCal
2y=cos(4(t6))+6
asked by Anonymous 
Geometry
the verticies of a quadrilateral are A(4,3), B(2,3), C(4,6) and D(2,6) gind the perimeter of quadrilateral ABCD
asked by Popppppmusic 
Math
find the intercept and graph. x+3y=6 I need to complete the ordered pair (3,) so im I setting the problem up right x(3)+3y=6? and thus the missing ordered pair is 2?
asked by Christopher 
TRIG
Half angles in trig (square root(1square root(21)/5)/2)
asked by Renee ( PLEASE HELP ME) 
Math
How do I calculate the monthly payment required to repay a $250,000 loan in 15 years at 5.75% interest compounded monthly?
asked by Silvia 
math
Martin is building a square platform in the drama room at school. He knows the side length of the square needed for the platform. Which function can he use to determine F(x), the area in square feet of the platform?
asked by Kallie 
Math
Elisa has 50 invitations to distribute to her neighbors over three days. She distributes 12 on the first thing and, i, invitations on the second day. Which expression can best be use to find the number of invitations left to distribute on the third day
asked by Cindy 
Social Studies
Why did Madison think the federalism will prevent problems? >this question is referring to the late 1700's. The "who" is James Madison.
asked by INeedHelp 
Introduction to Chemistry
Hydrogen gas has a pressure of 765mm Hg, a volume of 355mL,and a temperature of 22 degrees C. What is the new volume of this gas if the pressure is 5.1atm,and at a temperature of 48degrees C?
asked by Renee 
business
research please assist how do you start a hospital please give websites for contact information thank you
asked by anita 
Social Studies
What were the jobs performed by the British when they were in India, back in 1858
asked by Anonymous 
physics
The oscillator that generates a wave completes 47 vibrations in 29.2 s. A given crest of the wave travels 382 cm along the rope in a time period of 10.3 s. What is the wavelength?
asked by Adriana 
Chemistry
Calculate empirical formula C=41.7%,H=6.2%,N=19.3%, and O=33.1% Thanks. any help at all will be awesome!
asked by Greg 
physics
if an ideal gas expands rapidly doing work 450 j of work on its environment, how much heat flowed into or out of it
asked by mohanad 
physics
First start with an isothermal expansion at 2.0 atm from 1.0 L to 4.0 L. If this now is adiabatically compressed back to its original volume, what is the change in internal energy here? Also what are some examples of these processes
asked by Anonymous 
bearings
The lines y=4x7 and 2x+3y21=0 intersect at a point A. The point B has coordinates (2, 8).Find the equation of the lines that passes through the points A and B
asked by eliasbaisi 
Science
Which of the following would increase the magnetic field around a wire? A. solenoid B. insulator C. conductor D. resistor
asked by Anonymous 
4th grade math
sam has 7 17/20 dollars. write 7 17/20 dollars in decimals
asked by mythreyee 
Math
How to solve quadratic equation by graphing x^25 + 4= 2
asked by Janis 
geometry
what does the word congruent mean? Sry my dad forgot this one!
asked by mia 
Physics
A cylinder with a movable piston encloses 0.39 mole of ideal gas at 308K . How much heat is required to increase its volume isothermally by a factor of 3? 1100J 1400J 1600J 550J
asked by Lindsay 
business
how to open a new hospital
asked by anita 
health
what is the primary function of the skeletal muscle a. protecting the body from harm b. heating the body c. contraction d. pumping blood to the rest of the body
asked by Anonymous 
statistics
If M=1000; SD=200. What score do 20% of the testtakers score?
asked by Yolanda 
math
a ground is 80m wide& 60m long. how much wire is required for fits fencing in two rows.
asked by anita 
business plan
The information you gave staed a error please check information a resubmit thank you
asked by anita 
Algebra
How would you simplify b^4=25/4
asked by Lily 
math please help
Your parents have just brought you a care and now you have an opportunity to "deck it out." how would you change/ enhance your vehicle to make it your dream car? What features/parts would you add, including taxes. Imagine you have a job, $1000.00 in
asked by sim 
English help
From the words below, supply the words needed to complete the sentences. Vicariously, vicissitudes, tawdry, ponderous, sycophant, implausible. A. One might say that Tennessee Williams lived VICARIOUSLY through the character of brick in his play cat on a
asked by Anonymous 
math
7/10 got to the pool by car, 1/5 took the bus, and 1/6 walked. how many more came by car than on foot? How many fewer came by foot?
asked by Anonymous 
Math
soybean mean is 16% protein and corn mean is 9% protein. how many pounds of each should be mixed to get a 350 pound mixture that is 13% protein?
asked by Mohamed 
MATH
A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c
asked by COURTNEY 
maths
find value of a and b in root 3 _1/root 3+1=a+b root 3 if a and b are rational numbers
asked by daahin 
math
anually compound amount and compound interest of $42.000 with a nominal rate of 11% for 19 years
asked by theresa 
math
A movie theater ticket booth opens at 10 am. There are four tellers who divide the customers evenly. The tellers have served 16 customers so far this morning. which expression represents the unknown number of customers each teller will serve? Let c
asked by Amber 
hsm 220
Can someone please help put a budget together for this class. Working on creatibg a budget for department of efucation with a buget of 1.6 million for high school dropouts
asked by verna 
rela
elizabethan social classes and the roles each played in elizabethan england
asked by Anonymous 
reading
a name i can use for the elizabethan time period first and last name
asked by Reina B. 
Science
The moon reflects sunlight...yes or no
asked by Mohammad 
math
An analysis of the ledger detail is required to differentiate owner's equity beginning balance from the amount of additional investments made during the period. True
asked by Anonymous 
Computer Programming
Professor Merlin has asked you to help him. He has 100 total students in his four classes but he is not sure that all of them took his last exam. He wants to average the grades for his last exam in four sections of his medieval literature course and then
asked by Giris 
English
Neither I nor she will able to climb the tree. Neither I or she will able to climb the tree. Which sentence is right and why?
asked by Anonymous 
Science
Can someone explain center of mass in simple terms?
asked by Anonymous 
math
20 learners, 1/4 palys soccer and 1/5 plays netball, the rest plays rugby. What fraction plays rugby?
asked by Nonny 
Chemistry
The part of an electrochemical cell that carries electrons to a reacting ion is a(n) (1) cathode (2) anode (3) electrode (4) electrolyte
asked by Brian 
math
A fish is swimming 18 centimeters beliw the surface of the stream which integer best describes the elevation
asked by Anonymous 
English help
From the words below, supply the words needed to complete the sentences. Chronic, clairvoyance, inadvertent, pretentious, celestial, vanguard. A. John had a CHRONIC back pain that left him bedridden. He refused, however, to visit the doctor because of the
asked by Anonymous 
math
in a class of 480 students if 60% are boys then find the number of girls in the class?
asked by Niran 
math
i need to know the mean, median, mode,and the midrange to this data 37,35,32,34,40,46,25,32,42,33
asked by casandra 
alg.
Solve. (If there is no solution, enter NO SOLUTION.) y= x^2x4 y=x+4 (x, y) = ( , ) (smaller xvalue) (x, y) = ( , ) (larger xvalue) x^2 + y^2 =10 x+y=4 (x,y)= ( , ) smaller value (x,y)= ( , ) larger value
asked by HELP 
math
what is the compound amount and compound interest of $7.700 with a nominal rate of 6% for 5 years
asked by theresa 
triangle measurements
if a triangle has a top length of 13 cm and a lower length of 12 cm what would the height of the triangle be?
asked by mia 
geometry
what does the word supplementary mean in the case of dealing with angles?
asked by mia 
geometry
there is a six sided shape for example:  / \ / \ / \   \ / \ / \/ ( I tried my best!) is it a hexagon or a pentagon? I no its not a triangle or a octogan but im not sure about the other two. Plz help me!
asked by mia 
math
a bottle of juice completely fills a cylinder 10 inches tall and 4 inches in diameter. if one bottle of juice is poured into a cylindrical pitcher with a diameter of 6 inches, to what depth in inches will it fill the pitcher?
asked by brianna 
soital studied
what is the quran
asked by MRS.pete 
Social Studies
What were the resources of India back in 1858?
asked by Anonymous 
tech
Features within the social network: for twitter is it able to tweet, add pictures, message ppl
asked by yasminb. 
maths
if a and b are rational numbers in^3+1/^3_1=a+b^3 find the value of and b
asked by daahin 
English
1. violet: flower:: A. psychosis: illness B. pink: red C. shadow: sun D. chair table Is it A? 2. gems: jeweler:: A. gold: miser B. airplane: pilot C. driver: car D. clay: potter Is it B? 3. day: night:: A. few: many B. red: color C. fin: fish D. life:
asked by Anonymous 
math
solve the equation: 3x^2 + 2x + 2 = 0
asked by Ilse 
managerial accounting
what is nile's strategy for success in the marketplace ?
asked by Anonymous 
math *check*
x:1,2,3,4,5,6,7,8,9  y:0.8,2.1,3.1,3.8,5.2,8.4,6.9,8.1,9
asked by person 
state of matter
why solid is the least amount of energy?
asked by Chloé 
Math
288in.=_yd
asked by Brooklynn