Questions Asked on
April 7, 2016

Chemistry
What is the mole fraction of NaBr in an aqueous solution that contains 20.1% NaBr (weight/weight%)?
asked by Steve 
Starcatcher
PLEASE CHECK MY ANSWERS!! Which of the following is the best definition of a suspense story? (1 point) a story that tells the gory details of violent acts a story that keeps the reader on edge about its outcome** a story that tells about the struggle
asked by Anonymous 
Maths
Find the sum of the following series: 1024  512 + 256  128 +...+ 1 So a = 1024, r = 0.5, but I need to know what n is in order to use the formula. So I tried ar^(n1) which is: 1024(0.5)^n1 = 1 but I don't know how to find n from there. Thanks in
asked by Rebecca 
Mathematics
In a class of 32 students, 17 study Music and 20 study Art. What is the LEAST number of students who are studying BOTH Music and Art?
asked by Mishana 
science
if sulfur is in excess then production of 2 moles of ferrous sulfide requires how many gram of iron?
asked by tanzila 
pre ap math
a toy rocket is launched from a platform that is 48 feet high. the rockets height above the ground is modeled by h=16t^2+32t+43. find the maximum height of the rocket find the time it will take for the rocket to reach the ground.
asked by kenia 
chemistry
Fluorine20 has a halflife of 11.0 s. If a sample initially contains 49.0 μg of this isotope, how much remains after 66.0 s ?
asked by susan 
chemistry
In Europe, gasoline efficiency is measured in km/L. If your car's gas mileage is 27.0 mi/gal , how many liters of gasoline would you need to buy to complete a 142km trip in Europe? Use the following conversions: 1km=0.6214mi and 1gal=3.78L.
asked by Anonymous 
Stat
Of the 64 people who answered "yes" to a question, 6 were male. Of the 70 people that answered "no" to the question, 8 were male. If one person is selected at random from the group, what is the probability that the person answered "yes" or was male?
asked by Anonymous 
calculus
Consider a particle moving along the xaxis where x(t) is the position of the particle at time t, x'(t) is its velocity, and x''(t) is its acceleration. A particle moves along the xaxis at a velocity of v(t) = 5/√t, t > 0. At time t = 1, its position is
asked by Sam 
Math
Suppose a(x) = 3x  7 and b(x) = 2  x^3. Find a(b(3))  b(a(3)).
asked by Justine Keeps 
Math
How many ways are there to put 6 balls in 3 boxes if the balls are distinguishable but the boxes are not?
asked by Help plz 
mathmatics
sachin read 3/5 of a books. he finds that there are still 80 pages left to be read, totoal number of pages in book are
asked by s.k panigrahi 
Neutons Second Law
A 1200 kg car travelling at 50 km/h experiences an air resistance of 5000 N and road friction of 2200 N. If the wheels push with a force of 7500 N, what is the car's acceleration?
asked by Jen 
Mathsoh cah toa
A bridge is 140m long.From the ends of the bridge, the angles of depression of a point on the river under the bridge is 41° and 48°. How high is the bridge above the river to the nearest meter. ( I know the answer is 68m, I just need to know how to get
asked by Kennedy 
math
The rails on a railroad are 30 feet long. As the train passes over the point where the rails are joined, there is an audible click. The speed of the train in miles per hour is approximately the number of clicks heard in: A. 20 seconds B. 2 minutes C. 1.5
asked by Gaurav 
Chemistry
Calculate the amount of water you need to add (in mL) to 30mL of 1.5M HCl to dilute it to a concentration of 1.25M.
asked by Liyah 
Algebra II
A car’s headlight contains a parabolic reflector. A special bulb with two filaments is used to produce the high and low beams. The filament placed at the focus produces the high beam and the filament placed offfocus produces the low beam. The equation
asked by Sandy East Ward 
Statistics
Roulette wheels in Nevada have 38 pockets. They are all numbered 0, 00, and 1 through 36. Of all 38 pockets, there are 18 red, 18 are black, and 2 are green. Each time the wheel is spun, a ball lands in one of the pockets, and each pocket is equally
asked by Jennifer 
math
The coordinates of an ordered pair have opposite signs. In which quadrant(s) must the ordered pair lie? Explain? PLZZ HELP ME I NEED TO ACE THIS TEST OR ELSE I FAIL
asked by really 
chemistry
What is the molarity of the following solutions? A. 0.96 g MgCl2 in 500 mL solution B. 9.33 g Na2S in 450 mL solution C. 2.48 g CaF2 in 375 mL solution
asked by justin 
LA NOW.
Write a brief essay discussing the use of imagery in both "Grandma Ling" and "your little voice." Examine the ways in which each poem uses images to convey the emotions or attitudes of its speaker. Okay, I already did the "Grandma Ling" part but I need
asked by Mariana W. 
English
Please help me with these question about Romeo and Juliet!!! They really are confusing me!! 1. In act 4 scene 1 of Romeo and Juliet, Paris tells Friar Laurence, "Immoderately she weeps for Tybalt's death, / and therefore have I little talked of love." What
asked by Becca 
Math
Sophia bought 3 yards of trim to put around a 'rectangular scarf. She wants the width of the scarf to be a whole number that is at least 6 inches and at most 12 inches. If she uses all the trim, what are the possible dimensions of her scarf?
asked by Kaia walker 
Health
Stiff consequences for breaking the rules is often referred to as a... A. zerotolerance policy. B. suspension. C. risk. D. law. I think either A or B.
asked by Arliene 
American History
Which statement below summarizes President Richard Nixon’s policy of Vietnamization. A. Train the South Vietnamese so America can slowly withdraw its troops B.Order an immediate removal of Americans from Vietnam. c. Meet with the North Vietnamese and
asked by Angie 
math
Can the figure below tessellate a plane? Explain your answer. 20.gif
asked by really 
Geometry
Regular pentagons A and B are similar. The apothem of Pentagon A equals the radius of Pentagon B. Compare the areas. The area of Pentagon A is equal to 1.49 times the area of Pentagon B. The area of Pentagon B is equal to 1.49 times the area of Pentagon A.
asked by SkatingDJ 
Math
Find the surface area of the prism 5m 9m 12m 1.426m 2.306m
asked by Someone 
Math
If f(x)=5x12, find a value for x so that f^1(x)=f(x+1). Thank you so much
asked by Lance 
engg
a test car of mass 1250 kg is traveling at a speed of 72 kmph, when it is suddenly braked by locking the wheels. the average vehicle comes to a stop in a distance of 50 m. skid resisting force is.
asked by rajat 
Algebra
Person A can paint the neighbor's house 2 times as fast as Person B. The year A and B worked together, it took them 5 days. How long would it take each to paint the house? So, i know how to setup the problem, but i'm not sure what steps I need to take to
asked by Mark 
Chemistry
Radium223 nuclei usually decay by alpha emission. Once in every billion decays, a radium223 nucleus emits a carbon14 nucleus. Write a balanced nuclear equation for alpha emission. Write a balanced nuclear equation for carbon14 emission.
asked by mark 
Chemistry
In 2006, Soviet dissident Alexander Litvinenko was murdered when Polonium210 was added to his tea; he died three weeks later. Polonium210 is an alpha emitter. What other product is formed?
asked by Jessie 
Statistics
A card is drawn from a well shuffled deck of 52 cards. Find P (drawing an acre or a 9)
asked by J 
calculus
Use a(t) = −9.8 meters per second per second as the acceleration due to gravity. (Neglect air resistance.) A canyon is 2300 meters deep at its deepest point. A rock is dropped from the rim above this point. Write the height of the rock as a function of
asked by Sam 
Chemistry
A chemist reacted 0.05 moles of sodium with water to form 50cm3 of sodium hydroxide solution. Na + H2O  NaOH + H2 (unbalanced) What mass of sodium was reacted?
asked by Jo 
grade 7 mathematics
A bag contains 14 green tiles, 10 red tiles, and 16 blue tiles. What is the theorectical probability that you will randomly select a blue tile?
asked by angel 
physics
A massspring system oscillates on a horizontal frictionless surface with an amplitude of 3.35 cm. If the spring constant is 222 N/m and the mass is 0.580 kg, determine the mechanical energy of the system. Determine the maximum speed of the mass. Determine
asked by Anonymous 
Physics
A 2.30 kg block is initially at rest on a horizontal surface. A horizontal force ModifyingAbove Upper F With rightarrow of magnitude 4.92 N and a vertical force ModifyingAbove Upper P With rightarrow are then applied to the block (see the figure). The
asked by Sara 
Math
How much greater is the surface area of the rectangular prism than the surface area of the cube.
asked by Latoya 
English
1. How long did it take him to read the book? 2. How long did it take for him to read the book? (Are both grammatical?) 3. It took him five days to read the book. 4. It took him 5 days to read the book. (Which one is commonly used?)
asked by rfvv 
Art
what national values were the Japanese likely trying to convey by including a portrait of famous philosophers Yukichi Fukuzawa on the following pieve of currency? A. wisdom and education ** B. power and prosperity C. strength and indurance D. peace and
asked by Lou 
Bio
How to I determine the sequence of amino acid assembled when given the following +DNA code: CCA, AGT ? I'm asked to give the :DNA, mRNA, tRNA codes, and also the amino acid. If I'm not mistaken I know that I must replace "T" thymine for "U" uracil.
asked by Jamie 
Physics
An 80 kg hunter gets a rope around a 400 kg polar bear. They are stationary and on frictionless level ice, initially 60 m apart. When the hunter pulls the polar bear to him, the polar bear will move: 1. 10 m 2. 30 m
asked by Anonymous 
Chemistry
Both ethanol (CH3CH2OH, MM=46.07g/mol) and methanol (CH3OH, MM=32.04g/mol) have been considered as fuels for automobiles. Which is the better fuel, on a per gram basis, when burned with oxygen? CH3CH2OH(g) DeltaHf(KJ/molrxn) = 235.10 H3OH (g)
asked by Sarah 
Chemistry
Cells use the hydrolysis of adenosine triphosphate (aTP) as a source of energy. This reaction can be written as, ATP(aq) + H2O(l) > ADP(aq) + H2PO4(aq), wehre ADP represents adenosine diphosphate. For this reaction, Delta Grxn = 30.5KJ/mol. If all the
asked by Anonymous 
Chemistry
Radium223 has a halflife of 11.4 days. Approximately how long would it take for the activity of a sample of 223Ra to decrease to 2.00 % of its initial value?
asked by sierra 
Physics
A certain circuit consists of an inductor of 50 mH in series with a resistor of 130 Ω. At one moment, the current in the circuit is 12 A, and decreasing. How long will it take for the current to fall to 4.8 A? Answer in units of s.
asked by Ayo 
Math
A picture frame is 6 1/2 inches wide. The ratio of the length of the frame to the width is 3:2. What is the length of the frame in inches?
asked by Lee 
Geometry
mollys rectangular backyard has 300 ft of fencing. one side is 40 ft find the area of the backyard
asked by Anonymous 
Algebra
Segment FG begins at point F(2,4) and ends at point G(2,3). The segment is translated by the less than symbol x3,y+2 greater than symbol and then reflected across the yaxis to form segment F'G'. How many units long is segment F'G'? a. 0 b. 2 c. 3 d. 7
asked by Watkins 
Physics
A man is in a boat out away from shore. The mass of the man and the boat is 188 kg. The boat is not moving. The man throws and anchor with a mass of 22 kg straight out from the boat with a speed of 13.8 m/s. What is the resulting speed of the boat?
asked by Kevin 
calculus
Find the particular solution that satisfies the differential equation and the initial condition. f ''(x) = x^2, f '(0) = 8, f(0) = 8 f (x) = ?
asked by Sam 
calculus
Use a(t) = 9.8 meters per second per second as the acceleration due to gravity. (Neglect air resistance.) A baseball is thrown upward from a height of 3 meters with an initial velocity of 7 meters per second. Determine its maximum height. (Round your
asked by Sam 
science
What does the surface temperature of the water affect?
asked by Nina 
math
a company is designing a juice box. the box is in the shape of a rectangular prism. the base of the box is 8 1/2 inches by 4 1/2 inches, and the box is 4 inches high. if the juice fills 80% of the boxes volume, find the volume of juice in the box.
asked by onel22 
Technology in the classroom
What is the ideal computer arrangement to use when you want to integrate computers directly into the classroom curriculum? A. One computer located in each classroom B. One computer that's shared among several classes C. A central computer lab, with one
asked by Susan 
linear equations in one variable
I have a total of ₹300 in coins of denomination ₹1,₹2 and ₹5.The number of ₹2 coins is 3 times the number of ₹5 coins.The total number of coins is 160.How many coins of each denominations are with me?
asked by sunil 
Geometry
Quadrilateral MNPQ is the same shape but different size than quadrilateral MNPQ.tell whether one figure is a dilation of the other or not. Explain your reasoning.
asked by Khan 
biology
if a person exercise in a warm environment and if he exercise in a cool environment, will there be any difference between the amount of calorie he will lose?and if,in which environment he will lose more calorie? please explain the reason.
asked by tasnuba 
World History
How did England and France, and the international community in general, deal with the threat of Hitler’s rise to power and his acts of defiance initially?
asked by Boberto 
Math
In a class of 32 students, 17 study Music and 20 study Art. What is the LEAST number of students who are studying BOTH Music and Art?
asked by Mishana 
chemistry
A nickel is about 2 millimeter thick or 2/1000 of a meter. How many nanometers is this?
asked by Tom S 
Algebra
If the study had included these data, would this change the model relating average body weight and average pulse rate. Avg Body WeightAvg Pulse Rate cat1250 dog2.5265
asked by Dre 
Chemistry
A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.03 nm. It then gives off a photon having a wavelength of 1005 nm. What is the final state of the hydrogen atom? What is the equation to solve this?
asked by Emma 
Math
The vertices of ΔABC are A(2, –5), B(–3, 5), and C(3, –3). The triangle is reflected over the xaxis. Use arrow notation to describe the original triangle and its reflection. a. A(2, –5), B(–3, 5), C(3, –3) > (2, –5), (–3, 5), (3, –3)
asked by Queen 
Chemistry
A saline solution with a mass of 400 g has 30 g of NaCl dissolved in it. What is the mass/mass percent concentration of the solution?
asked by Sabrina 
Statistics
Roulette wheels in Nevada have 38 pockets. They are all numbered 0, 00, and 1 through 36. Of all 38 pockets, there are 18 red, 18 are black, and 2 are green. Each time the wheel is spun, a ball lands in one of the pockets, and each pocket is equally
asked by Jennifer 
Unknown
Carl is asked to draw a triangle with the following specifications: all sides have whole number lengths in centimeters the sum of the lengths of the two shortest sides equals 9 centimeters when the side lengths are placed in order from least to
asked by Unknown 
Geometry
Quadrilateral MNPQ is the same shape but different size than quadrilateral mnpq
asked by Khan 
Math
Vinay made a Password that consists of 3 digits. None of the digits are the same. How many possible passwords did Vinay choose from?
asked by Sherin 
algrbra
the volume of the shape below is placed into a bow that is 10 feet tall and the area of the base is 48ft squared feet. to the nearest tenth what is the remaining space. The figure is a sphere that has a radius of 6 ft. r=6ft I really need help figuring how
asked by hello2248 
math
3y+x=10 x=2y1 3y+x×=10x
asked by nancy 
math
Write4.1x10 to the 5th power in standard form
asked by bobby 
Math
How many more yellow and red lollipops than blue and green lollipops were pulled out of the bag?
asked by Priscilla 
Bio.
How does the genetic code is transferred from the nucleus to the cytoplasm to the amino acids ? Does it have something to do with transferring DNARN A ?
asked by Jamie 
math
A trapezoid with an area of 48m2 has a height of 6m. One of its bases is 12m. Write and solve an equation to find the length of its other base. Also explain the work so I can understand when I do the test. Thanks
asked by Adri 
Chemistry
How do you prepare one liter of phosphate buffer 0.01 M at pH 12.0 from 85% phosphoric acid (density 1.69g/ml) and NaOH 1.0 M
asked by Phil 
Bio
How does a change in one nucleotide in one triplet code can change the nature of a protein and therefore the form of the trait ? I believe this has something to do with mutations. I know that mutation may result from errors in DNA replication or
asked by Jamie 
Algebra
Write an algebraic expression for the quantity. Let x represent the unknown value. Seven times a quantity decreased by thirteen
asked by Matt 
Algebra
Can someone show me how to Simplify the radical expression ã3633ã27 in steps please
asked by GummyBears16 
Physics
An ocean liner leaves New York City and travels 26.9 ° north of east for 217 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions (a) due east and (b)
asked by Jane 
Mathematics
Does the figure of a star have rotational system? if it does find the angle of rotation?
asked by Queen 
Physics
A(n) 12600 lb railroad car traveling at 7.4 ft/s couples with a stationary car of 6490 lb. The acceleration of gravity is 32 ft/s2. What is their velocity after the collision?Answer in units of ft/s. What impulse did the first car receive?Answer in units
asked by Anonymous 
History
Which region of the country was a beneficiary of deindustrialization during the 1970s? A . Northeast B. Northwest C, midwest D. southwest my answer is D southeast
asked by Angie 
bio
which invertebrate phylum contains the sub phylum vertebrata
asked by Ariana 
Algebra
Let f(x) = x^2  2x. Find all real numbers x such that f(x) = f(f(x)). Thanks.
asked by Annonymous 
Math
What is 500 percent of 25?
asked by Nina 
math
Which ordered pair is not a solution of y = 4x 9 (9, 27) (3, 21) (6, 15)I think this one? (5, 28)
asked by really 
Bio
What is being asked of me, the question reads: Extrapolate single trait genetic flow to human disorders and diseases.
asked by Jamie 
Accounts
A farmer bought a machine for $ 3200 it is to be depreciated at a rate of 25% using the reducing balance method .what would be value after 2 years?
asked by Patience 
physics
A mass of 6•5 kg has a weight of 20N on a certain planet calculate the acceleration due to gravity on this planet?
asked by boniface 
math
solve for x if 1/15(6+x)=1/6(x+3)
asked by Nita 
English
apple of my eye: One's favorite person; the one you love most. In Old English, the pupil of the eye (the round, dark center) was called the 'apple'. It was thought that the pupil was a round object much like an apple. When you look at someone, their
asked by rfvv 
chemistry
the solubility of CaF in water is 7*10^2 gm/l. find its solubility in 0.5m CaCl2 soln
asked by s 
English
1. First, we should raise the price of cigarettes. (What is the opposite of 'raise'? Is it 'lower?)
asked by rfvv 
math
find three solutions of the equation y= 2x  6 (2,10),(1,4),(2,1) (2,10),(1,4),(0,6) (0,6),(3,2),(2,10) I think this one? (1,4),(0,6),(1,9)
asked by really 
Math
A mural on the school wall has an area of 4800 square inches. If the length of the mural is 1 1/13 times the width, what are the dimensions of the mural?
asked by Evie 
science
a 600 g pool ball moving at 2.0m/!@#$%^&s a second pool of the same mass at rest. the first ball moves off at 1.5m/s at an angle of 30 degrees from the original direction. assume the surface of the pool table to b frictionless find the angle at which the
asked by hope 
math
the shorter leg of a right triangle is 9 inches shorter than the longer leg. the hypotenuse is 9 inches longer than the longer leg. find the side lengths of the triangle
asked by Tammie 
Math
A portrait has an area of 180 square inches. If the length of the portrait is 1 1/4 times the width, what are the dimensions of the picture?
asked by Evie 
Math
Trina is planning on spending 2/5 as much time this week as last week practicing the piano. Is this more or less time than she spent last week?
asked by Evie 
Chemistry
A sample has a molar mass of 162g/mol. When a sample of mass 0.385g was burned , 1.072g of CO2 ,0.307g H2O and 0.068g of nitrogen were produced. What is empirial and molecular formular of a sample . Write equation for combustion
asked by Marie 
math
find three solutions of the equation y= 2x  6 (2,10),(1,4),(2,1) I think this one (2,10),(1,4),(0,6) (0,6),(3,2),(2,10) (1,4),(0,6),(1,9)
asked by really 
Physics
A meter stick has mass 39 g, and has a pivot placed at the center at the 50 cm mark. A mass of m1 is place at the 5 cm mark. Another mass of 10 g is placed at the 70 cm mark. What mass m in grams has to be placed at the 80 cm mark to create translational
asked by Dridien 
Math
Today Enrique read 4/3 of the pages he read yesterday. Did he read more or less pages than he read yesterday?
asked by Evie 
Math
Julia made a 1/8 scale drawing of her dollhouse. Her dollhouse is 38 inches tall. Will her drawing be more or less than 38 inches tall?
asked by Evie 
Physics
A string of length L vibrates with a fundamental frequency f when under a tension of 100 N. What is the fundamental frequency of the string when its tension is increased to 2500 N?
asked by Ayden 
Physics
A 0.26 mH inductor has a length that is four times its diameter. If it is wound with 34.4 cm−1 turns per centimeter, what is its length? Answer in units of m.
asked by Ayo 
Chemistry
15.0 ml of 0.50 M NaOH is added to a 100.mL sample of 0.442 M NH3 (kb for NH3= 1.8 x 10^5). What is the equilibrium concentration of NH4+ ions?
asked by Aisha 
Social Studies (Reed)(Check)
Which countries did the following leaders lead during WWII? Adolf Hitler: Germany Benito Mussolini: Italy Joseph Stalin: Union of Soviet Socialist Republics Winston Churchill: Great Britain, United Kingdom
asked by Victoria 
Math
Roulette wheels in Nevada have 38 pockets. They are all numbered 0, 00, and 1 through 36. Of all 38 pockets, there are 18 red, 18 are black, and 2 are green. Each time the wheel is spun, a ball lands in one of the pockets, and each pocket is equally
asked by Jennifer 
Math
Find the missing number that completes the table of values what's the Function Objective a function table Example:y= X+2
asked by Alyssa 
chemistry
How do I prepare 100mL of 10g/L HCl from concentrated HCl(37%HCl, density 1.19g/mL) Is it 2.28mL of conc HCl dilute to 100mL with water? Please show the calculation steps.
asked by haji 
Chemisty
I was told to find the concentration of acetic acid in vinegar when only using baking soda and common lab equipment. Can someone tell me how Thanks
asked by David 
Math
6.2, 6 1/2 , 6 3/5, 6.7, 6 1/3
asked by Anonymous 
Physics
A girl standing on a stationary uniform plank 10m long. The plank can move with negligible friction along the surface of the water. A) the girl walks along the plank with a velocity of 2ms1 relative to the plank until she reaches the end of the plank. The
asked by Peter 
Chemistry
If it takes 45 days for 80.0 mg of a particular radioactive isotope to decay to 10.0 mg what is its halflife?
asked by Kelly 
chemisrty
the ph of a 4.0 mol/L solution of hydrogen fluoric acid is 3.0 is this a concentrated or diluted explain I believe it is concentrated because 3.0 is higher then 0.5 mol/L but it can also be diluted
asked by Anonymous 
chemistry
A radionuclide undergoes alpha emission, and thorium234 is produced. What was the original radionuclide?
asked by chris 
Pre cal
A right triangle sides is 7 and 4 find the hypotenuse
asked by Sam 
Chemistry
What is the [H3O+] of a solution if its pH = 8.26?
asked by Emma 
Calc 2
Find the center of mass for the region bound by y= 2x+6, x=0, and y=0
asked by Tayb 
Physics  urgent
A pipe 0.14 meters long and capped at one end exists in a room where the speed of sound is 350 m/s. Determine the three lowest frequencies that will resonate within the tube. [Enter the frequencies in order from lowest to highest.]
asked by Ayden 
life orientation
Critically discuss six ways that the human rights violations influences individuals,groups and the broader south African community
asked by Anonymous 
Algebra
Sue, an experienced shipping clerk, can fill a certain order in 5 hours. Jim, a new clerk, needs 12 hours to do the same job. Working together, how long will it take them to fill the order?
asked by Mark 
English
Traditional africa marriage is an advantage for men only not women
asked by Nkosingiphile gugu 
Algebra
HOURS STUDYING AVG GRADE 0 62 1 78 2 85 5 74 WHICH TYPE OF FUNCTION IS MOST LIKELY TO MODEL THESE DATA? A. LINEAR FUNCTION W/POSITIVE SLOPE B. LINEAR FUNCTION W/NEGATIVE
asked by Kimmy 
physics
A simple harmonic oscillator has a frequency of 2.05 Hz. What will be its amplitude of oscillation if it's started from its equillibrium position with a velocity of 1.9 m/s? Express your answer in m to three significant digits.
asked by Zac 
Math
Last week Jorge ran 25 2/3 miles. This week he ran 5/6 of this amount. Did he run more this week or last week?
asked by Evie 
math
fred has saved 4300 cent over 2 days from selling lemonade. how many dollars dose fred have ?
asked by amari 
Pre cal
sin55=12/b what is b
asked by Sam 
Statistics Math
There are 3 men sitting in a row facing the same way. Their names are A,B, AND, C. a hat has been placed on their heads without them seeing their own or anyone else's. A can see B and C, B can see only C, C sees none. The game goes as follows: (it can have
asked by lola 
STATS
The average number of applications of one gallon of car wax is 450; with a stdev of 23.9; if the bottom 5.2% of the wax containers is defective from the factory; what is the lowest amount of applications will pass and not be rejected.
asked by MAX 
physics
With what frequency would you have to push a child on a swing that had supporting chains that were 2.3 m long? Express your answer in Hz to 3 significant digits.
asked by Zac 
physics
A house painter stands 3.0 m above the ground on a 5.0mlong ladder that leans against the wall at a point 4.7 m above the ground. The painter weighs 680 N and the ladder weighs 120 N. Assuming no friction between the house and the upper end of the
asked by nada 
Physics
Two golf carts are driving towards each other. The first has a mass of 390 kg and is driving east at 20 m/s. The second has a mass of 500 kg and is driving west at 8 m/s. When the two collide their bumpers lock and are stuck together, what is the final
asked by Kevin 
American History
What is Nell Irvin Painter’s best counterargument to Bob Dole’s claim that “fighting discrimination should never become an excuse for abandoning the colorblind ideal. A. The colorblind ideal is unrealistic, and abolishing affirmative action will
asked by Angie 
English
Are nature, dreams and visions, imagination, religion and spirituality, and the supernatural features of romanticism? Because I have to describe three features of romanticism found in a poem, and those are the features I found online.
asked by Justine 
Algebra
Give one number in each space to create an equation that has no solution. 8x3x+2x= ___x+ ___
asked by J.J 
english
I need 2 words out of these letters aalsimekats. They have to be a 5letter word and 6 letter word.
asked by Bev Holdsworth 
Sarah
□     ○  □ resistor   □   _____  _ : DC power  _____  supply    ○ :ammeter _   ___ _________/ \_____ ___:capacitor 1 2 /\: key (open or closed switch). Could someone please give me the explanation of the
asked by capacitor 
physics
A certain pendulum on Earth has a period of 1.6 s. What would be the period of this pendulum if it were taken to another planet that had 1.75 times the mass of the Earth and 2.5 times the Earth's radius? Express your answer in seconds to three significant
asked by Zac 
English
English is the language of opportunity.Why bother to teach indigenous languages?
asked by Anonymous 
Algebra
TeaPots n Treasures sells loose Oolong tea for $2.15 per ounce. Donna mixed Oolong tea with shaved almonds that sell for $0.95 per ounce to create the Market Street Oolong blend that sells for $1.85 per ounce. One week, she made 300 oz of Market Street
asked by Lee 
Math
is 2/3 larger than 4/7
asked by Morgan 
Math
Factorise Completely 9y^281
asked by Ackron 
chemistry
How much energy is obtained if 11.2g of hydrogen gas are allowed to react with excess fluorine? H2 (g) + F2 (g) 2HF (g) + 124kcal
asked by angie 
maths
what is the four digit number which satisfies these conditions; The last digit is twice the first digit. The second digit is twice the third digit. The sum of the first and last digits is twice the third digit.
asked by somay 
maths
If it takes five men six hours to dig seven holes, how long does it take one man to dig half a hole?
asked by somay 
Math
Baichung's dather is 26 years younger than Baichung's grandfather and 29 years older than Baichung.The sum of the ages of all the three is 135 years.What is the age of each one of them?
asked by Sunil 
maths
A farmer has 23 ears and he uses a deer to transport them to the store house. If the deer carry three ears a day to the store house, how many days will it take to carry them to the store house?
asked by somay 
science
describe the function of each of the above organelles. in addition, compare each organelle to something else (examples: the nucleus is like a boss because both are in control of something larger
asked by cristina 
math/graphing
Graph the direct variation y=−1.5x. Using the graph, find:The value of y corresponding to the value of x equal to 1; 0; 2; 3
asked by Anonymous 
Science
What are the basic points of Lewis and langmiur theory of electrovalency
asked by Lunathi 
Calculus
A festivals being planned. The planners need to enclose to adjacent 200 M^2 areas with fencing. They have budgeted $1000 for fencing. Fencing currently cost $10/meter. The diagram of the area is as follows: (The diagram is 2 adjacent squares, the areas of
asked by Roygbiv 
calculus
Use a(t) = 32 ft/sec2 as the acceleration due to gravity. (Neglect air resistance.) A ball is thrown vertically upward from a height of 4 feet with an initial velocity of 79 feet per second. How high will the ball go? (Round your answer to two decimal
asked by Sam 
calculus
The maker of an automobile advertises that it takes 15 seconds to accelerate from 15 kilometers per hour to 70 kilometers per hour. Assuming constant acceleration, (a) The distance the car travels during the 15 seconds (Round your answer to two decimal
asked by Sam 
American History
According to the protest footage who organized the American demonstrations? A. The student Nonviolent Coordinating committee. B.Anonymous leadership c.A loose coalition of antiwar groups d. students under the leadership of abby Hoffman my answer is D
asked by Angie 
maths
x^2 + xy  Ky^2=0 , the angle made by the line pairs of this equation is 45 degree. I got the value of k as 0 and 2, do we need to reject k=0 and conclude our answer as k=2 ?
asked by clive 
Math
Who were John Venns peers or any mathematicians working on the same thing as John during the same time as him?
asked by Elizabeth 
math probability
Two friends were each rolling a die. After they rolled, they found the sum of the numbers showing on each die. What is the probability that the sum is 7? I added the sides together and simplified to get 1/6, but I don't think that's right.
asked by Anna 
Chemistry
Acid in vinegar has pka value of 1.85 x 10^5 at 25oC find the pkb value of its conjugate base?
asked by Ahmad 
Math
Quadrilateral MNPQ is the same shape but different size than quadrilateral now.tell one figure is dilation of other or not.explain your reasoning.
asked by Khan 
MATHEMATICS
IF W VARRIES AS D SQUARE WHAT IS THE PERCENTAGE CHANGE IN W IF DECREASED BY 30%
asked by Anonymous 
math
shirley is making 4 dozen cookies for a bake sale .she does not want to spend more than $9 making the cookies. write and solve an inequality to find the maximum cost per dozen cookies.let c represents the maximum cost per dozen cookies.
asked by lakshmi 
mathematicsequadratic equation
Given that, x^24x+4 is a root of x^3+ax^2+bx4. Find a and b please show workings #thanks
asked by P1 
chemistry
what is the molarity of the solution comtaining 2.5g of acetic acid in 75g of benzene
asked by saira 
pre ap math
a toy rocket is launched from a platform that is 48 feet high. the rockets height above the ground is modeled by h=16t^2+32t+43.
asked by kenia 
health
I NEED TO MAKE A HEALTHY FAST FOOD RESTAURANT MENU WITH 2 BREAKFAST,TWO LUNCH,TWO DINNER,AND TWO DESSERT ITEMS.I NEED THE INGREDIENTS OF THE ITEMS.DRINKS DON'T COUNT HAS A FOOD ITEM.
asked by anonymous 
math
A manufacturing company manufactures a cardboard box with a square base and a height of 15 inches. Suppose the equation 2 x x 60 7,200 0 can be used to find the length and width of the base of the box, each measuring x inches. Use the zero product property
asked by crissy 
maths help me urgently!!!!!!
rationalise [1(2i^2)]/i Plz help show we working so that i can learn
asked by david 
World History
Which famous general warned against the danger of Hitler? ERICH LUDENDORFF?
asked by Boberto 
Algebra
A silo is filled at a constant rate for a total of 10 hours. Number of HoursAmt of Corn(cu ft) 0 0 32475 54125 86600 Enter the "percent" of
asked by Blake 
calculus
Use a(t) = 32 ft/sec2 as the acceleration due to gravity. (Neglect air resistance.) A ball is thrown vertically upward from a height of 4 feet with an initial velocity of 79 feet per second. How high will the ball go? (Round your answer to two decimal
asked by Sam 
American History
how did spiro agnew characterize the anti war protesters’ A. Militant and socialist B. Emotional and Illogical c. Angry and wrong D. Unorganized and radical My answer is B
asked by Angie 
Math
Mr Wee bought tshirts at $5 each and sold them at $9each. Those who bought 2 tshirts from him were given one tshirt free. At the end of the sale, Mr Wee made a total of $1288 and 120 tshirts were given free. How many customers bought only 1 tshirt?
asked by Izzah 
Hydrology
I am having difficulty analyzing my lab data. I don't know whether to analyze a chart or use calculations to define the data. I am trying to use the CooperJacob method. I also need to calculate transmissivity and storativity, but am having difficulty
asked by Max 
hansen
the family is taking three giftwrapped presents(using the same boxes.)How much wrapping paper will they need? Draw a net to represent one of boxes
asked by Anonymous 
Algebra, Mathematics
A $40 000 car depreciates at a rate of 13% per year. a) Write an equation to represent this situation. b) Find the value of the car in 3 years. c) How long does it take for the car to be worth half it's value?
asked by Jacob 
American History
How would Spiro Agnew characterize the antiwar protesters’ A. Militant and socialist B. Emotional and Illogical c. Angry and wrong D. Unorganized and radical
asked by Angie 
chemistry
In the lab, you mix 30mL of 0.30M Na2SO4 with 10mL of 0.25M Ba(OH)2 to produce BaSO4 and NaOH. Calculate the theoretical yield (in moles) of BaSO4 produced from this reaction. State your answer in decimal form and round to two sig. fig. (not scientific
asked by Liyah 
Pure Science
What Happens(in terms of floatation and sinking )When A Solid Object e.g a stone is placed in a liquid like water if they both have equal densities?
asked by Ackron.Z 
Physics
A 5.8 kg object is accelerated from rest to a speed of 53.3 m/s in 55 s. What average force was exerted on the ob ject during this period of acceleration? Answer in units of N.
asked by Bob 
American History
What did John Kerry view as a chief disservice to returning soldiers that illustrated that they were unwanted by America. A. Americans viewed soldiers with distrust, and the administration viewed them with apathy. B.Soldiers returned with psychological
asked by Angie 
science
according to wegeners hypothesis of continental drift ? A. Earths surface B. The continents C. Earth is slowly cooling and shrinking D. The continents joined
asked by Xxoreo_~chan_xX 
Physics
A 0.19 kg ball of dough is thrown straight up into the air with an initial speed of 13 m/s.The acceleration of gravity is 9.81 m/s. b) What is its momentum halfway to its maximum height on the way up? Answer in units of kg · m/s.
asked by Anonymous 
math
A girl is × years old and her cousins age is × 5 years. How old is her cousin if she is 7years old?
asked by Tebogo 
math
write the equation Eighteen less than 6 times a number is the same as 12 more than the number.
asked by Anonymous 
L.O
Suggestions on how to combat the violation of human rights
asked by Anonymous 
math
if the numbers 16 64 400 and 784 are they a variable or a constant???
asked by jazmin 
Calculus
Consider the function f(x)=xsqrt(36−x^2), −1≤x≤6. This function has an absolute minimum value equal to what?
asked by Anonymous 
World History
how countrys react to threats for example terrorism,ISIS, Wars?
asked by Boberto 
Bio
Define and give key feature to the word pollen
asked by Anonymous 
Math
A computer was purchased at a sale at a discount of 15%. If $688.50 was paid for it, and this price includes 8% sales tax, then what was the original price without tax or discount?
asked by Matt 
Calculus
Suppose the derivative of a function f is f′(x)=(x−8)^7(x−1)^4(x+19)^8. Then the function f is increasing on the interval what?
asked by Anonymous 
Calculus
Find a cubic function f(x)=ax^3+cx^2+d that has a local maximum value of 9 at 4 and a local minimum value of 6 at 0. Find a, c, and d.
asked by Anonymous 
Math
Let ABCD be a square, and EFGH be a square whose area is twice that of ABCD. Prove that the ratio of AB to AC is equal to the ratio of AB to EF
asked by Kenny 
Algebra
A basketball player makes 53 points on 24 shots. How many 3 pointers and 2 pointers did he shoot. Show your work. I know that the answer is 5 for the 3 pointers and 19 2 pointers but I don't know how to show it.
asked by Alex 
Math
How many 4 digit multiples of 5 can be form d using the digits, 1,2,5,7,9,0 if repitions are not allowed?
asked by Bobbie 
Maths
2x^3  12x^2  32x
asked by John 
Chemistry
How many gallons of water at 70 deg. F is required to cool a gallon of water at 212 deg f?
asked by Fritz 
Math
A truefalse test consists of 10 items. What is the probability that Chris gets 80% or more for the test?
asked by Denzil 
Algebra II
Thomas says that you can take the square root of each side of an equation. Therefore, he feels that (x+5)^2 + (y7)^2 = 49 and (x+5) + (y7) = 7 are equivalent. However, Mark says that they aren't equal. Who is right? Explain.
asked by Sandy East Ward 
Geometry
Triangle RST has angles 38 and 75.Triangle rst has angles 67 and 38.the side are proportional.
asked by Khan 
Math
Triangle WXZ is a right triangle. Triangle XYZ is a right triangle. Angle WXY is 86 degrees. What is angle YXZ's measure?
asked by Anonymous 
calc 2
Find the orthogonal trajectories for the family of curves y=(kx)^6.
asked by TayB 
Math
For what values of x is it true that x^2  5x  4 < 10? Express your answer in interval notation. Thank you!
asked by Candice 
Hiistory
Why is it that only 2% of Americans are involved in agriculture but in other parts of the world such as Asia and Africa about 60% are involved
asked by Anonymous 
physics
Consider air to be a mixture of 80% nitrogen and 20% oxygen. How much work is required to raise the temperature of 7 mol of air by 9 ∘C in an adiabatic process?
asked by lizbeth 
Chemistry please help
The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) > C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole
asked by Rose 
Math
The equation x^2+12x=73 has two solutions. The positive solution has the form (sqrta)(b) for positive natural numbers a and b. What is a+b? Thanks
asked by Linda 
phy
A block of mass m = 3.45 kg slides along a horizontal table with speed v0 = 2.00 m/s. At x = 0 it hits a spring with spring constant k = 80.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by ¦Ì = 0.250. How
asked by xianhua 
phy
A block of mass m = 364 g is dragged with a string across a rough horizontal table. The string tension is T = 3.59 N, and it pulls upward at an angle of ¦Õ = 47.0¡ã with the horizontal. At one particular instant the block is moving at a speed of v =
asked by xianhua 
Math
Define a#b=abab+1 for all real numbers a and b. x # 7 = 42. What is the value of x?
asked by Cooper 
History
Opposition to strong environmental protection regulations was motivated by A, Concern that regulation would hurt the economy and kill jobs. B. conservative resistance to expanding federal authority. C.refusal to believe that pollution was a serious problem
asked by Angie 
Math
Jessica was responsible for making party bags for her sister's birthday party. She noticed that there were 6 times as many balloons as stickers and 1/3 as many bubbles as balloons. If there were 135 party items, how many are stickers?
asked by Anonymous 
Math
Let f(a,b) = 2a  3b^2 + 7. If f(b,3) = 90, then what is b? Thank you for helping!
asked by Lance 
Math
Kate won a bag of candy at a raffle. She gave 1/5 of the candy to her brother, 1/4 of the candy to her friend, and had 11 pieces left over. How many pieces did she give her Brother?
asked by Kate 
Precal
b^2=13^+8^22(13)(8)cos135
asked by Bo 
Algebra
Write the following as an inequality. Y is less than or equal to 3 and greater than 7
asked by Kt 
English
1. We'll leave after lunch. 2. We'll leave in lunch. (Can we use both preposition? Are both OK? What is the difference between them?) 3. He was dead in a few seconds. 4. He was dead after a few seconds. (is there any difference between them? Can we use
asked by rfvv 
English
1. After 10 days, the dogs will be put to sleep. 2. In 10 days, the dogs will be put to sleep. (Are both grammatical? Do we have to use 'in' or 'after' in this case? Do they have the same meaning?)
asked by rfvv 
Art
what value is most likely encouraged when citizens look at the rising eagle on the unit state dollar bill? Wisdom Patriotism Endurance Creativity I think either wisdom or patriotism
asked by Sierra 
Mathematics
Tessellation are made by repeatedly overlapping a figure. True or False I think it's false Tell me if I'm wrong or right
asked by Queen 
math
Scale on a map is 1:1000 What does 1cmsquared on a map represent
asked by tally 
Chemistry please help!
The reaction through which carbon changes from graphite to diamond form is represented by the equation C(graphite) > C(diamond) delta H: ? Using the reactions below, determine the amount of heat absorbed in the change of one mole of graphite to one mole
asked by Rose