Questions Asked on
September 27, 2012

Calc 3
At what point on the paraboloid y = x2 + z2 is the tangent plane parallel to the plane 7x + 2y + 3z = 2? (If an answer does not exist, enter DNE.)
asked by Becky 
physics
what average force is needed to accelerate a 7.00gram pellet from rest to 125m/s over distance of a .800m along the barrel of a rifle.
asked by Anonymous 
Physics
A gray kangaroo can bound across level ground with each jump carrying it 8.4m from the takeoff point. Typically the kangaroo leaves the ground at a 23 angle. 1. Provide knowns and unknown values. 2. What is the initial velocity or takeoff speed? 3. What is
asked by Yuki 
Physics based Calculus
Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with a long measuring tape. Bob is a pitcher, and knows that
asked by Brianna 
math
Find the number of distinguishable permutations of the given letters ``AAABBBCCC''. If a permutation is chosen at random, what is the probability that it begins with at least 2 A's?
asked by bballer 
7th grade math  Scientific Notation basics
1. The area of Greenland is 840,000 square miles. What is this number in scientific notation? 2. What is this number in standard form? 5.75 x 10^9 3. In a recent year the world production of wheat was about 5.2 x 10^8 metric tons. What is this number in
asked by Delilah 
chemistry
Write the formulas of the compound NH4+ formed by specified cations with the following anions:OH, NO3, CO32,HSO4, PO43 . Use the given order of anions
asked by shay 
chemistry
A 27.00 mL sample of an unknown H3PO4 solution is titrated with a 0.110 M NaOH solution. The equivalence point is reached when 25.78 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction is:
asked by Amanda 
Algebra2
A triangle has points A(1, 2), B(1, 6), and C(3, 6) and is reflected over the xaxis and then over the line y = x. A"B"C" are the coordinates of the reflected image. What is the A" coordinate?
asked by Maranda 
chemistry
Write the formulas of the compound Al+3 formed by specified cations with the following anions:OH, NO3, CO32,HSO4, PO43 . Use the given order of anions
asked by shay 
Analytical
Calculate the pH of 7.2 × 108 M HCl. Report your answer to the hundredths place. Next, What fraction of the total H in this solution is from the HCl? Report your answer to the hundredths place.
asked by Chris 
Physics
A tennis ball with a velocity of 24.4 m/s is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 16 m/s. If the ball is in contact with the wall for 0.013 s, what is the average
asked by Diego 
Chemistry(Please answer, thanks)
I have to answer the following questions about C3H7Cl: Are there different constitutional isomers for this formula, are there different cis/trans isomer, and are there different conformers? I know that C3H7Cl can be drawn two ways: HCCCCl With H's
asked by Hannah 
math
explain how you would write the number that is 2 tens more than 53?
asked by jojo 
Chemistry
Calculate the density of a substance in pennyweights per peck that has a volume of 0.371 hogsheads and a mass of 41.6 kg. 1 pennyweight = 1.55 grams 1 hogshead = 238.5 liters 1 peck = 9.091 liters. Answer in units of pw/pk.
asked by Peter 
Math
It is greater than 43 and less than 52 if you add the digits the sum is 8 write the number word
asked by Christy 
math
a flagpole casts a shadow 3 meters long . a woman near the pole cast shadow 0.75 meters long. the woman is 1.5 meters tall. how tall is the flag pole?
asked by rizza domingo 
physics
A cheerleader lifts his 62.2 kg partner straight up oﬀ the ground a distance of 0.89 m before releasing her. The acceleration of gravity is 9.8 m/s 2 . If he does this 19 times, how much work has he done? Answer in units of J
asked by LYNN 
Science
if an aluminum cube has a mass of 20g and the length of each side was 2 cm, between what two liquids would it float?
asked by Anonymous 
math
Jasmine has 8 packs of candle wax to make scented candles. Each pack contains 14 ounces of wax. Jasmine uses 7ounces of wax to make one candle. How many candles can she make?
asked by anthony 
PreCalculus
Composition of Functions If f(x) = 2x+1 find A. f o f(x) f(f(x)) = f(2x+1) f(2x+1) = 2(2x+1) f(f(x)) = 4x +2 B. f o f o f o f(x) ^ I don't get how to solve this one C. f o f o f o f o f ...o f(x) n functions of f ^ I also don't get how to solve this one
asked by Shreya 
Calc 3
Find parametric equations for the tangent line to the curve of intersection of the paraboloid z = x2 + y2 and the ellipsoid 6x2 + 5y2 + 7z2 = 39 at the point (−1, 1, 2)
asked by Becky 
science
A small hockey puck slides without friction over the icy hill and lands 6.20 m from the foot of the cliff with no air resistance.What is its initial speed v0 at the bottom of the hill?
asked by a 
physics
This question is typical on some driver’s license exams: A car moving at 40 km/h skids 12 m with locked brakes. How far will the car skid with locked brakes at 80 km/h? Answer in units of m
asked by LYNN 
Chemistry
How to solve titration problem for HC2H3O2 + NaOH= NaC2H3O2 + H2O The M of NaOH= 0.427 The volume of NaOH= 17.30mL 10.00mL of acid The second titration calculation is: The M of NaOH= 0.427 The volume of NaOH=34.60mL 20.00mL of acid
asked by John 
Chemistry
Calculate the pH of 7.2 × 108 M HCl. Report your answer to the hundredths place. Next, What fraction of the total H in this solution is from the HCl? Report your answer to the hundredths place. I apologize for the repost, but I felt the previous one was
asked by Chris 
CHEM HELP ASAP!
As a solid, Ag adopts a facecentered cubic unit cell. How many unit cells are present per cubic centimeter of Ag?
asked by Jordan 
Finance
Suppose that five years ago Cisco Systems sold a 15year bond issue that had a $1,000 par value and a 7 percent coupon rate. Interest is paid semiannually. a. If the going interest rate has risen to 10 percent, at what price would the bonds be selling
asked by Christian 
physics
A body covers 1 complete revolution around a circular park of circumferences 176 meter in 4 minutes .Find the displacement of the body after 6 minutes ?
asked by Anonymous 
chemistry
A total of 506 J of heat are added to 50.0 g of water initially at 15.0 degrees Celsius. What is the final temperature of the water?
asked by rachel 
Physics
An outfielder throws a 0.145 kg baseball to the shortstop with a speed of 30 m/s at an angle of 20 degrees above the horizontal. How far does the ball travel? (Assume the shortstop catches it at about the same height that the outfielder throws it.)
asked by Nick 
chemistry
Write the formulas of the compound Al3+ formed by specified cations with the following anions:OH, NO3, CO32,HSO4, PO43 . Use the given order of anions
asked by shay 
physics
You decide to take your dog to the leashfree zone in the park. While playing, the dog runs after a ball and heads 24 m [W 12° S] and then gets distracted by a squirrel and runs 33 m [E 52° S]. Determine the displacement of the dog
asked by shan 
Chemistry
Suppose you are asked to find the area of a rectangle that is 2.1 wide by 5.6 long. Your calculator answer would be 11.76 . Now suppose you are asked to enter the answer to two significant figures. (Note that if you do not round your answer to two
asked by Annie 
calculus
A girl flies a kite at a height of 200 ft, the wind carrying the kite horizontally away from her at a rate of 4 ft/sec. How fast must she let out the string when the kite is 422 ft away from her? Answer = ft/sec.
asked by Avi 
Precalculus Math
If $2500 is invested at an interest rate of 2.5% per year, compouded daily, find the value of the inevestment after 2 years
asked by Olive 
Chemistry
A 6.00 ft cylinder has a radius of 26 in. It contains 189 lb of helium at 25 celsius. Express the volume of the cylinder (V=ðr²h) in liters, the amount of helium in moles and the temperature in Kelvin.
asked by Wendy 
Math/Trig
An airplane leaves an airport and flies due west 150 miles and then 170 miles in the direction 210°50'. Assuming the Earth is flat, how far is the plane from the airport at this time (to the nearest mile)
asked by Jackie 
physics
You are planning to build a log cabin in northern Minnesota. You will pull the logs up a long, smooth hill to the building site by means of a rope attached to a winch. You need to buy a rope for this purpose, so you need to know how strong the rope must
asked by nate 
physics
A large airfilled rubber ball is tethered to the bottom of a swimming pool. The tension in the tether is 100N. The mass of the rubber in the ball itself is 2kg while pwater=1000kgm(3) and pair=1.2 kgm(3). What is the volume of the ball?
asked by brenda 
chemistry
Write the formulas of the compound Pb+4 formed by specified cations with the following anions:OH, NO3, CO32,HSO4, PO43 . Use the given order of anions
asked by shay 
college algebra
An open box is made from a square piece of cardboard 20 inches on a side by cutting identical squares from the corners and turning up the sides.(a) Express the volume of the box, V , as a function of the length of the side of the square cut from each
asked by danny 
math
maurice puts 130 trading cards in protector sheets. He fills 7 sheets and puts the remainiing 4 cards in an eighth sheet. Each of the filled sheets has the same number of cards. How many cards are in each filled sheet
asked by joann 
Chemistry
Suppose the atmospheric pressure during the experiment was 751 mmHg. The temperature of the water was found to be 23.0 degrees celsius. What is the pressure of the oxygen gas, Po2 that is produced?
asked by Casey 
physics
A flock of ducks is trying to migrate south for the winter, but they keep being blown off course by a wind blowing from the west at 11{\rm m/s} . A wise elder duck finally realizes that the solution is to fly at an angle to the wind.If the ducks can fly at
asked by ade yinka 
marketing
Binomial probability distributions are used in business, science, engineering, and other fields. Suppose you work for a marketing agency and have to create a television ad for Brand A toothpaste. The toothpaste manufacturer claims that 40% of the
asked by Mark 
calculus
Sand falls from a conveyor belt at a rate of 20 m^3/min onto the top of a conical pile. The height of the pile is always 3/4 of the base diameter. Answer the following. a.) How fast is the height changing when the pile is 10 m high? Answer = m/min. b.) How
asked by Avi 
physic
A ball rolls off the edge of a balcony at 10 m/s. what is the speed after 1s in the air?
asked by mike 
math
in the lab, tom has two solutions that contain alcohol and is mixing them with each other. he uses 300 millilters less of solution A than solution B. solution A is 10% alcohol and solution B is 13% alcohol. How many millilters of solution B does he use, if
asked by Anonymous 
College Chemistry
how would you prepare 175.0ml of .150 m agno3 solution starting with pure agno3
asked by Anne 
math
Ryan has nine 14ounce bag of popcorn to replace and sell at the school fair. A small bag holds 3 ounces. How many small bags can he make?
asked by anthony 
College Physics
What minimum speed does a 95.9 g puck need to make it to the top of a 2.7mlong, 15° frictionless ramp?
asked by Jarad Plair 
american history
Which of the following is true of the SpanishAmerican War? A: The black soldiers who fought had gained experience and distinction during the Indian Wars B: Racial tensions were suspended for the duration of the war C: About 1 in 10 American soldiers were
asked by Anonymous 
algebra
Specialty tshirts are being sold online for $30 plus a onetime handling fee of $2.75. The total cost is a function of the number of tshirts bought. What function rule models the cost of the tshirts? Evaluate the function for 5 tshirts.
asked by kayla 
Chemistry
Ethylene glycol has a specific gravity of 1.1088 at room temperature 25 degrees Celsius. What is the mass of 1.00L of ethylene glycol at this temperature?
asked by Thy 
Physics science
Dana and Gina are pushing on a box. Dana pushes with 250 N of force and Gina pushes with 100 N of force. A. What is the net force if tey both push the box in the same direction. B. what is the net force if they push in the opposite directions?
asked by Ashley 
chemistry
In 1934, Edward A. Doisy of Washington Univeristy extracted 1361 kg og hog ovaries to isolate a few milligrams of a potent female hormone. Doisy burned 5.00 mg of this precious sample in oxygen and found that 14.54 mg of CO2 and 3.97 mg of H2O were
asked by gloria 
Finite Math
A coin is loaded, so that the probability of a head occuring on a single toss is 2/3. In six tosses of the coin, what is the probability of getting all heads or all tails?
asked by Carol 
Math
The formula s = the square root of 18d can be used to fnd the speed s of a car in miles per hour when the car needs d feet to come to a complete stop after slamming on the brakes. If it took a car 12 feet to come to a complete stop after slamming on the
asked by Jordan 
Chemistry
This Chem problem is really difficult Need help please! Magnesium Consists of three naturally occuring isotopes. The percent abundance of these isotopes is as follows: 24Mg(78.70%), 25Mg(10.13%) and 26Mg(11.7%). The average atomic mass of the three
asked by Mary Joy 
precalc
A roasted turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in a room where the temperature is 53°F (a) If the temperature of the turkey is 150°F after half an hour, what is its temperature after 45 min? (Round
asked by Ms. Sue please help! 
social studies
The people who are in the best position to save are: A. teenagers. B. young adults in their 20s. C. middleaged. D. elderly I'm between C and D. Please help!
asked by clara 
Physics
A cup of coffee is sitting on a table in an airplane that is flying at a constant altitude and a constant velocity. The coefficient of static friction between the cup and the table is 0.37. Suddenly, the plane accelerates, its altitude remaining constant.
asked by Anonymous 
physics
Ann is driving down a street at 58 km/h. Suddenly a child runs into the street. If it takes Ann 0.778 s to react and apply the brakes, how far will she have moved before she begins to slow down?
asked by dave 
Chemistry
Which statement concerning the electrons surrounding the nucleus of an atom is NOT correct? a) When 2 electrons pair together, they have opposite spins. b) The number of the electrons in an isolated neural atom is equal to the atomic number c) The second
asked by Peter 
Physics
A skier with a mass of 66.6 kg starts from rest and skis down an icy (frictionless) slope that has a length of 58.4 m at an angle of 29.8° with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow
asked by Rebecca 
geometry
Find m angle NKL if m angle JKL = 2m angle JKN
asked by nik 
Math
It is less than 300. The ones digit is 4 times the hundreds digit. The tens digit is 5 more than the hundreds digit. The sum of the digits is 17. What is the mystery number?
asked by Gon 
Physics
A man in an elevator is 79kg. The elevator itself is 860kg. As the elevator begins to move down, a scale the man is standing on reads 437N. How do I determine the acceleration of the elevator? (I tried dividing the force of the man by his mass, it was
asked by Tim 
word problems math
Laura wants to cut a board into three equal pieces. The board is 58 feet long. How long will each piece be?
asked by Aaliyah 
accounting
YSL Marketing research is a small firm located in Seattle. On behalf of its clients, the firm conducts focus group meetings, telephone and mail opinion surveys, and evaluations of marketing strategies. The firm has three partners and six nonpartner
asked by Rainbow 
calculus
A 13 ft ladder is leaning against a house when its base begins to slide away. By the time the base is 3 ft from the house, the base is moving at the rate of 5 ft/sec. Answer the following: At what speed is the top of the ladder sliding down the wall at
asked by Avi 
Physics
A bank robber in a getaway car approaches an intersection at a speed of 45 mph. Just as he passes the intersection, he realizes that he needed to turn. So he steps on the brakes, comes to a complete stop, and then accelerates driving straight backward. He
asked by Rave 
physics
A 208kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 34.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.830, and the log has an
asked by Anonymous 
physics
You are part of a team to help design the atrium of a new building. Your boss, the manager of the project, wants to suspend a 16.0 kg sculpture high over the room by hanging it from the ceiling using thin, clear fishing line (string) so that it will be
asked by nate 
Sociology
Discuss the conclusions of Margaret Mead concerning temperament, and explain how she arrived at her conclusions.
asked by Christina 
physics
QA: This question is typical on some driver’s license exams: A car moving at 40 km/h skids 12 m with locked brakes. How far will the car skid with locked brakes at 80 km/h? Answer in units of m QB:A cheerleader lifts his 62.2 kg partner straight up oﬀ
asked by LYNN 
calculus
When a circular plate of metal is heated in an oven, its radius increases at a rate of 0.02 cm/min. At what rate is the plate's area increasing when the radius is 100 cm? Answer = _______ cm^2/min
asked by Avi 
information systems
Is it an invasion of privacy for a company to search the Web for information by and about a job applicant? Interviewers are trained not to ask an applicant for some kind of information (age, marital status, disabilities) to avoid charges of discrimination.
asked by Anonymous 
Math
A greyhound can run as fast as 39.35mph per hour without calculating,would about 12,14 ,or 16 be reasonable answer for the number of miles a greyhound could run at this rate in 0.4 hour. My answer is about 16 because 60 min.divided by 0.4 is about 15. Am I
asked by Americal 
Math (12th)
What is the common difference in the arithmetic sequence 30, 27, 24, 21, 18, ...
asked by Lydia 
calculus
A golf ball of mass 0.05 kg is struck by a golf club of mass m kg with a speed of 50m/s will have an initial speed of v(m)=83m/(m+0.05) m/s. show that v'(m)>0 and interpret this result in context with the application. Compare v'(0.15) and v'(0.20) in
asked by Corey 
world civilization NEED HELP A.S.A.P
What solutions did Augustus provide for the political problems that had plagued the Roman Republic?
asked by tisha 
world civilization
How was the Roman Empire organized and why did it function smoothly?
asked by samyra 
school
Jessica needs to describe her vision for an important ad campaign to three of the new team members. What should Jessica do?
asked by Anonymous 
Chemistry
calculate the volume of a rectangular prism with a length of 5.6 , a width of 2.1 , and a height of 6.6 .
asked by Annie 
math
A roasted turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in a room where the temperature is 53°F (a) If the temperature of the turkey is 150°F after half an hour, what is its temperature after 45 min? (Round
asked by Help! VERY URGENT! 
algebra
6x+5y=17 find the equation, in slopeintercept form, for the line which is parellel to this line and passes through the point (10,3)
asked by michael 
calculus
The length l of a rectangle is decrasing at a rate of 5 cm/sec while the width w is increasing at a rate of 2 cm/sec. When l = 15 cm and w = 7 cm, find the following rates of change: The rate of change of the area: Answer = cm^2/sec. The rate of change of
asked by Avi 
world history
Write two short editorials (2 paragraphs each)the first as an editor of a proIsraeli editorial about the IsraeliPalestinian Conflict, the second from the point of view of a proPalestinian editorial. I'm not quite sure what they are asking me to do
asked by anonymous 
differential
dT/dt= k(T  Tm), t > 0 where k is a constant of proportionality, T and Tm are measured in degrees Fahrenheit, and time t is measured in hours. Because Diff wants to investigate the past using positive values of time, he decides to correspond t 0 with
asked by armut 
Chemistry
The Ka of a monoprotic weak acid is 3.29 × 103. What is the percent ionization of a 0.176 M solution of this acid?
asked by Piper 
Math 8R  HELP!!!!!
Mr. Martanarie bought a new lamp and lamppost for his home. The pole was 6 5/8 ft tall and the lamp was 1 1/4 ft in height. How tall were the lamp and post together?
asked by Laruen 
american history
The Niagara Movement, headed by ____, sought equal rights for blacks A: William Lloyd Garrison B: William E Walling C: Booker T Washington D: W.E.B Du Bois I'm torn between C and D. The book I'm studying from and the websites I've looked at aren't very
asked by Shawna 
woodlake hills/ science
Jose put 40 mL of water into a graduated cylinder. After addinga toy car, the water level in the cylinder rose to 65mL. What isthe volume of the toy?
asked by jacob 
calculus
The voltage V (volts), current I (amperes), and resistence R (ohms) of an electric circuit are related by the equation V=IR. Suppose that V is increasing at a rate of 3 volt/sec while I is decreasing at a rate of 1/8 amp/sec. Let t denote time in seconds.
asked by Avi 
Chemistry
I have to answer the following questions about C3H7Cl: Are there different constitutional isomers for this formula, are there different cis/trans isomer, and are there different conformers? I know that C3H7Cl can be drawn two ways: HCCCCl With H's
asked by Hannah 
science
A bullet of mass 50g is fired from a gun of mass 6kg with a velocity of 400m/s. calculate the recoil velocity of the gun?
asked by hemnath 
Math
a poll found that a particular group of people read and average or 18.3 books per year. The pollsters are 99% confident that the result from this poll is off by fewer than 3.79 books from the actual average x. express this situation as an inequality
asked by Kylie 
calculus
Two commercial airplanes are flying at an altitude of 40,000 ft along straightline courses that intersect at right angles. Plane A is approaching the intersection point at a speed of 429 knots (nautical miles per hour; a nautical mile is 2000 yd or 6000
asked by Avi 
social studies
what kind of government did the minoans have ?
asked by ujal 
math
What 3 digit number can be written as 45 tens
asked by nicole 
Physics
Approximately 4x10^9 kg of matter is converted into energy in the sun per second. Express the power output of the sun in watts.
asked by Mel 
Math Please Help !!!!!!!!
How many yards must be gained after a loss of 3 yards to have a total gain of 10 yards?
asked by Maryam (: 
fortis
north island federal credit union pay 4% annual interest, compounded daily on time savings deposits. find the value after 1 year of 750 deposited in this account
asked by lisa 
Business Finance
Need step by step explaination for soulution: A firm has net income of #2,610 and tax rate of 33%. The revenue is $20,400, cost are 78 percent of sales, and interest expene is $100. what is th edepreciation expense for the years?
asked by V 
math
container A has twice the capacity of container B. Container A is full of sand and container B is empty. Suppose 1/8 of the sand in container A is poured into Container B. What fractional part of container B will contain sand?
asked by israel 
Shelving units
The average thikness of a medical chart is 1/4 inch. If a practice has 1200 patients with each chart 1/4 inch thick, how many shelving units will it take if a unit can hold 368 inches.
asked by Jo 
physics
Zak, helping his mother rearrange the furniture in their living room, moves a 49.9 kg sofa 7.1 m with a constant force of 37 N. What is the work done by Zak on the sofa? Neglect friction. Answer in units of J
asked by LYNN 
algebra
The numerator of a fraction is 7 less than the denominator if three is added to the numerator and 9 is subtracted from the denominator the new fraction is equal to 3/2. Find the original fraction.
asked by steph 
Calc
a box with an open top is to be made from a rectangular piece of tin by cutting equal squares from the corners and turning up the sides. The piece of tin measures 1mx2m. Find the size of the squares that yields a maximum capacity for the box. So far i have
asked by Kieran 
social studies
Fouryearold Sergei can tell his Poppa how to wash the clothes. Yesterday, Sergei told Poppa, "First, get the dirty clothes from the basket. Next, put them in the washing machine. Now, add some soapy stuff. Close the washer lid and press the button. When
asked by clara 
Physics
A 22.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 78.0 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction.
asked by Anonymous 
math
Round 6918 to the nearest hundred
asked by denise 
English
What are the nouns and verbs in the sentence. Life is full of choices, so I must learn to make good ones.
asked by Robert 
chemistry
Record measured absorbance for each tube in following table. Complete the table by calculating the [ Fe(SCN2+)]eq and [Fe3+]initial and [HSCN]initial Data: Volume of 2.00 x 103 M Fe(NO3)3 solution, mL 1)5.00, 2) 5.00, 3) 5.00 4) 5.00 5) 5.00 Volume of
asked by Brittany S 
math
A major corporation is building a 4325 acre complex of homes, offices, stores, schools, and churches in the rural community of Glen Cove. As a result of this development, the planners have estimated that Glen Clove's population (in thousands) t yr from now
asked by TEETEE 
psychology
Bronfenbrenner's bioecological theory is often explained by using a diagram that looks like a target with the individual in the bull's eye position. What is his point? A. The individual is a constant target for negative influences of a hostile environment.
asked by paul 
physics
Calculate the velocity needed for an object starting at the Earth's surface to just barely reach a satellite in a geosynchronous orbit. Ignore air drag and assume the object has a speed of zero when it reaches the satellite. (The orbital radius of a
asked by Sam 
chemistry
why do gases mix in any proportion?
asked by Vlera 
ALGEBRA
a pharmacist discovered she had 7/4 prescriptions filled for antibiotics and tranquiizers.66 prescriptions were filled.. how many were tranquilizers?
asked by Anonymous 
Chemistry
Which element is located in the family represented by ns²np³? A) Ti B) Se C) AS D) I E) Sb
asked by Peter 
History
The areas between the Tropics of Capricorn and Cancer are (A. High or B. Low) latitudes.
asked by Emma 
Math
It is less than 300. The ones digit is 4 times the hundreds digit. The tens digit is 5 more than the hundreds digit. The sum of the digits is 17. What is the mystery number?
asked by Gon 
social studies
The esteemed Dr. Bookworm has just completed a study in which he found a +1.0 correlation between the number of cups of coffee his students drank right before class and the scores they earned on his final exam. This correlation means that: A. the less
asked by clara 
chemistry
100 ml of a raw water sample on titration with 1/50N h2so4 required 12ml of the acid to phenolpthalein endpoint and 15.5 ml of the acid to methyl orange end point. determine the type and extent of alkalinity present in the water sample. please explain me
asked by nanbala 
math
how do i make a venn diagram for nurses and skydivers
asked by luci 
physics
A glacier moves with a speed of 45 nm/s. How many years would it take for the glacier to move 0.87 km? Assume there are 365 days in a year. Answer in units of y
asked by maria 
chemistry
115g of copper that loses 2.48kJ
asked by miri 
physics
A car traveling at +7.2 m/s accelerates at the rate of 0.65 m/s 2 for an interval of 2.4 s. Find vf . Answer in units of m/s
asked by Anonymous 
social studies
An Li reached puberty at age 12, and John Smith retired at age 65. An Li's and John Smith's experiences are examples of: A. normative events. B. nonnormative influences. C. critical periods. D. risk factors. I chose A. but now reading a little more into
asked by clara 
Math
A major corporation is building a 4325 acre complex of homes, offices, stores, schools, and churches in the rural community of Glen Cove. As a result of this development, the planners have estimated that Glen Clove's population (in thousands) t yr from now
asked by Beauty 
Spanish Beg. 1  HW Check/HELP!
4. Que tiempo hace? English  What's the weather 5. Cual es la estacion English  ?????? 6. Cual el la fecha English  ????? Please help and is the first one if correct????
asked by Laruen 
chem
C8H8O3 + NH3/H20 = ?? what would happen if ammonia solution was used instead of hydroxide?
asked by soss 
math
i am a 3 digit number,my ones digit is twice my hundreds digit,when rounded to the nearest hundred i round to 500,my tens digit is less than 6,what number am i?
asked by mercy 
social studies
How many years can you expect to spend in retirement? A. 6 to 10 years B. 10 to 12 years C. 12 to 16 years D. from 16 to 25 years Is the answer C?
asked by clara 
Algebra
Do you always use the property of distribution when multiplying monomials and polynomials? Explain why or why not. In what situations would distribution become important?
asked by Theresa 
social studies
Fouryearold Sergei can tell his Poppa how to wash the clothes. Yesterday, Sergei told Poppa, "First, get the dirty clothes from the basket. Next, put them in the washing machine. Now, add some soapy stuff. Close the washer lid and press the button. When
asked by clara 
social studies
Mary Lou must complete a research project to get her associate degree. She has just one year left to finish her degree and must spend as little time and money as possible on her research. She plans to compare stress levels of 8th graders to stress levels
asked by clara 
psychology
Dr. Doolittle was often late for his daily psychology class, and his eager students decided they'd had enough. One day, the students put their waiting time and their knowledge of psychology to use by coming up with a plan to encourage the good doctor to be
asked by paul 
English
How do you determine criteria for evaluating something? What specific areas should you consider? What is the importance of establishing clear criteria?
asked by Tasha 
4 gr
forty people are lined up to ride the ski lift to the top of the mountain. Each chair on the holds 3 people. How many chairs will it take to get everyone up the mountain?
asked by william 
physics
a plane needs to fly at 40 degrees n of e when flying through a wind that blows 80 mph @ 70 degrees S of E. If the plane goes 320 mph in still air in what direction should the plane aim?
asked by allie 
Math (12th)
What are the next three terms of the geometric sequence 32, 16, 8, …?
asked by Michelle 
Physics
a colloid is solid particles dispersed in water a suspension where the particles settle out a gas I say gas, am I right?
asked by randomchik 
Prealgebra
How do you write an equation to determine possible values for a perimeter =52
asked by Aaron 
social studies
Explain how the Protestant Reformation led to war between England and France in the 16th century?
asked by Aisha 
physical scinsce
A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by
asked by Christian 
Math
Speedy Printing charges $23 for 200 deluxe business cards and $35 for 500 deluxe business cards. Give that the cost is a linear function of the number of cards printed, find a formula for that function and find the cost of 700 business cards.
asked by Steph 
health
what would be a way to respond to repetitive behaviour at age care
asked by jessica 
calculus
Find the dimensions of the largest cylinder that can be cut from a solid sphere of radius a.
asked by Anonymous 
education
During the middle of the twentieth century, North American psychology was dominated by A. evolutionary theory. C. neuroscience. B. cognitive development. D. behaviorism. 8. What is a major limitation of the psychophysiological method? A. Investigators
asked by mandy 
QNT351
use a 95% confidence interval to estimate the difference between the population means. Interpret the confidence interval. random sample 390 x1 5258 s1 152 x2 5220 s2 192
asked by Terri 
Math
5x6=5x4+5xb
asked by Tyler 
science
Why might a seed that falls on the ground in November wait until next April to germinate?
asked by Alyssa 
business
The average management fee for all mutual funds is: A. less than 0.25%. B. 0.25% to 0.50%. C. 0.50 to 1.25%. D. 1.25 to 2.50%. The answer I found is C, but I don't know if it is right.
asked by clara 
math
Jsmine has 8 packs of candle wax to make scented candles. Each pack contains 14 ounces of wax.Jasmine uses 7 ounces of wax to make one candle. How many candles can she make?
asked by shane 
american history
Following the SpanishAmerican War, and especially in regard to American occupation of the Philippines, most antiimperialists argued that____
asked by Shawna 
Phsyics
A woman stands on a scale in a moving elevator. Her mass is 63.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force
asked by Anonymous 
Phsyics
A woman stands on a scale in a moving elevator. Her mass is 63.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force
asked by Anonymous 
Math
Explain how you would write the number that is 2 tens more than 53.
asked by Anonymous 
PreCalculus
Composition of Functions f o g(x)=f(g(x)) > I know that this is eqivalent to f(g(x)) Given f(x) = 2x+1, and g(X) = 3x+1 find:f o g(x)=f(g(x)) This is what I did, but I don't think Ive solved it correctly f(g(x)) = f(x3) f(x3) = 1(x3)3x+2 =x33x+2
asked by Shreya 
Pre cal
Three digits are randomly selected without replacement for one 1, two 9's and one 6. What is the possibility that the three digit number is a multiple of 3?
asked by Bobby 
Art
What was Filippo Brunelleschi's style that he used? Is it.. Italian Renaissance? Thank you.
asked by Maria 
Spanish
in spanish, what do you put at the end of a name to show affection?
asked by SoccerStar 
Health Care Attorney
What type of education and certification do you need to be a health care attorney? I am trying to do a research on a career that I would like to be and I could really use the help. Thanks!!!
asked by Tanilia 
Senior Microeconomics
I need some help with my econ homework. Can someone tell me if I am right on these? 1. When graphing crosssectional data, one should ________. A. place the various years on the Xaxis B.always be drawn using a line chart C. investigate variables in a
asked by Mark 
math
A box of chalk and 2 staplers cost $10. Three boxes of chalk and 2 staplers cost $18.Find the cost of 1 box of chalk and 1 stapler.
asked by ruben 
college physics
An 7.81g bullet is fired into a 220g block that is initially at rest at the edge of a table of h = 1.15 m height.The bullet remains in the block, and after the impact the block lands d = 2.13 m from the bottom of the table. Determine the initial speed of
asked by Anonymous 
american history
Theodore Roosevelt's first major trustbusting victory resulted from a suit brought against____
asked by Shawna 
chemistry
How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?
asked by Rachael 
Biology
1. How is both the external and internal stimuli involved in doing this: You are hungry so you reach for an apple in a fruit bowl. 2. Why is a hypothesis important to controlled experiments? Is it becasue you are trying to explain the effect that it would
asked by Samantha 
physics
Find the electric field strength E at point P right above the edge of a metal ring. The ring has a linear charge density ë. Radius of the metal ring is R, the distance from the edge of the metal ring to Point P is D. thank you for helping.
asked by lam 
AP Physics
If a ball rolls off a 4m high table at 7 m/s, how far horizontally from the bottom edge of the table will it fall?
asked by Michaela 
algebra
three fourths of a number is 3/16 find the number in lowest terms...
asked by faye 
newcastle
calculate number of atoms of each element CaS04
asked by eliz 
public speaking
according to aristotle, ethos refers to: A. emotions B. logic C. ethics D. none of the above
asked by Anonymous 
7th grade math help  quick, please.
Write each number in scientific notation. 1. 4,800 2. 17, 200 3. 180,000 4. 343, 502
asked by Delilah 
Physics
Luke stands on a scale in an elevator which has a constant acceleration upward. The scale reads 0.964 kN. When Luke picks up a box of mass 18.2 kg, the scale reads 1.202 kN. (The acceleration remains the same.) Calculate the acceleration of the elevator
asked by liz 
chemistry
How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?
asked by Rachael 
Practice Sentences for French
Can someone give me practice sentences for direct and indirect objects? I want to see if I am able to do them. Also can you give me some sentences to put in the passe compose? thanks!
asked by Bryce 
Physics Vectors
two vectors A and B have magnitude such that A>B. We do not know the directions of the vectors. however we can say that the magnitude of the sum A+B must be between? a) B and 2A b)A and A+B c) AB and A+B d) AB and A e) B and A+B
asked by cody 
phycology
Life span developmental studies are based on the idea that: A. development occurs early in life, but not in late adulthood. B. there is almost no continuity over the lifespan, so an individual's history has little effect on development. C. sociohistorical
asked by paul 
physics
Find the electric field E at point P right above the edge of a metal ring. The ring has a linear charge density ë. Radius of the metal ring is R, the distance from the edge of the metal ring to Point P is D. thank you for helping.
asked by lam 
math 2 trigonometry
solve for oblique triangle given of two side,,, it is desired to find the distance betwen two points A and B lying on opposite banks of river A line segment AC of lenght 240ft.is laid off and the measure of angle B A C and A C B are found to be 62degre
asked by amadorlinas 
math
If R1 and R2 in series give a total resistance of 12,ohms,calculate R1 such that their combined resistance in parallel is a quarter of R1
asked by Oscar 
economics
1. (1 point) Consider two individuals considering how many iced coffee drinks to buy during the coming week. Person A is willing to pay a maximum of €10 for the first drink, €8 for the second, €5 for the third, and €1 for the fourth. Person B would
asked by yalomami 
French
is LES plural?
asked by Bryce 
Calculus AP
areas between the curves x=y^22, x=y, y=3. int[a,b](f(y)g(y)) dy i know how to graph. but im have problem with integral.
asked by Vicky 
science
How do you tell if intrusion is young or old
asked by shelbay 
6th grade Math
I got a problem wrong and I don't know why. Here it is: A highway construction warning sign blinks on and off. In all, the sign is on for 0.88 of each minute. For how many seconds is the sign on in 5 minutes? I multiplied 0.88 x 5 and got 4.40 but it was
asked by Nicole 
chemistry
Record measured absorbance for each tube in following table. Complete the table by calculating the [ Fe(SCN2+)]eq and [Fe3+]initial and [HSCN]initial Data: Volume of 2.00 x 103 M Fe(NO3)3 solution, mL 1)5.00, 2) 5.00, 3) 5.00 4) 5.00 5) 5.00 Volume of
asked by Brittany S 
Chemistry
would adding more CaCl2 to Na2CO3 produce more chalk
asked by Sneha 
ms.sue(social studies)
Ms.Sue about the question of the the Protestant Reformation is it that England was christian and France wasn't or something else (please help)
asked by Aisha 
Calculus 2
Calculus. Mary designed a new viewing window consisting of a rectangle and a semi circle for a fresh water aquarium. The window is as follows and the top is located 10 feet below the water's surface. How much force is on the window?
asked by Laura 
algebra
Can someone help with the equation for this?? Jon has a handful of pizzas. Someone takes 1/2 of them plus 1/2 of one pizza. Someone else comes and takes 1/2 of what's left plus 1/2 a pizza. A third person takes 1/2 of what's left plus 1/2 pizza. All pizzas
asked by Cammy 
social studies
The right to __________ is not one of the ethical guidelines for research specified by the APA. A. financial compensation B. informed consent C. privacy and confidentiality D. avoidance of deception I cannot find the answer to this question.
asked by clara 
phycology
Because Lucy is large for her age, she may not have many friends. This is an example of the interaction between which two types of development? A. Physical and psychosocial B. Physical and cognitive C. Cognitive and psychosocial D. Psychosocial and
asked by paul 
Math
find a polynomial of least degree(having real coefficients) with zeros: 5, 2, 2i
asked by Amber 
Human Biology
Tendon sheaths are used to?
asked by Kayla 
Science
What is a tool to separate a liquid from a mixture?
asked by Katlin 
business law
How do the various interests in land and real estate differ? Where did this system originate?
asked by Anonymous 
phycology
Abstract thinking and scientific reasoning generally do not begin to develop until: A. middle adulthood. B. young adulthood. C. adolescence. D. middle childhood. My answer is D.
asked by paul 
Math Please Help !!!!!!!!
A football team runs 11 plays. There are 3 plays that result in a loss of 2 yards each and 8 plays that result in a gain of 4 yards each. To find the total yards gained, Art evaluates the expression 3(2)+ 8(4). Bella first finds the total yards lost, 6,
asked by Maryam (: 
woodlake hills/ science
The car jose is examing has a mass of 25 grams. What is the destiny of the car?
asked by jacob 
finding substeps
two weeks john's corn plants measured 5in. tall.Now they are 2ft. 3in . tall. What percent of increase?
asked by Anonymous 
math
how you would write the number that is 2 ten more than 53
asked by Anonymous 
ENG. PHYS
A constant force Fx = 5.8 N is in the +x direction. (Use the following as necessary: x, and x0. Do not include units in your responses.) (a) Find the potentialenergy function U(x) associated with this force if U(x0) = 0. (b) Find a function U(x) such that
asked by LULU 
Biology
some proteins (such as HBB) can vary quite a bit from species to species. others (ex., tubulin) vary little from species to species? Why?
asked by Becca 
Science
If a mineral is 10g, how much oxygen is in the mineral.
asked by Derrick 
american history
Was it Ivy Lee or Henry Ford that pioneered the field of corporate public relations? Ive read that Ivy is considered one of the founding fathers of the public relations but then I also read that Henry was the first major industrialist to use the public
asked by Shawna 
math
Faye is making 13 bows to sell at the annual craft fair. She has 36 feet of ribbon to make her bows. If each bow requires 2 1/4 feet of ribbon will not be used
asked by Jamie 
physics
What is your average velocity if you drive a distance of 252.5 km at a speed of 41 km/h, then the same distance at a speed of 60 km/h? Answer in units of km/h
asked by aaron 
math
is it true that you only have to check your solution in a rational equation if the solution is 0?
asked by Matt 
Math  LCD
What is the LCD for x^2,x, and x?
asked by Matt 
math
What are the smaller arrays for 15x7
asked by ms.brooks 
Calculus 2
Calculus 2. Tom and Mike have a bet as to who will do the most work today. Mike has to compress a coil 200 feet. It takes Mike 250 lbs to compress the coil 10 feet. Tom needs to pump water through the top of a cylindrical tank sitting on the ground. The
asked by Laura 
psychology
In order to study the schools of children from poor families, Jonathan Kozol moved to several different U.S. cities and taught in their poorest schools. After doing this for a few years, he wrote a book about his findings. Kozol's work is an example of
asked by paul 
writing
what is the prepositional phrase in the following sentence, What is the price of the blue 2006 Honda Civic in the last row of cars on the lot?
asked by Amber 
chemistry
How much heat is necessary to raise the temperature of a 15.0g metal from 15 degrees celsius to 25.0 degrees celsius?
asked by rachel 
Calculus derivative
How do you do the derivative of a^x, for example, (3/4)^x Thank you for helping!
asked by Grateful 
Health
what will be an example of a trigger that can be found in the workplace when caring for a dementia clients in residential care
asked by jessica 
statistics/calculus
e^(10)e^(10x)x/(e^(10)11)=0.25 and e^(10)e^(10x)x/(e^(10)11)=0.75 Solve both for x. Can you solve both of these for x without a Ti89 calculator? If so how? The reason I want to calculate this is to find upper and lower quartiles of a deformity
asked by John 
elementary and intermediate algebra
how to write the equation for the following problem: The Post office charges extra for packages that must be processed by hand. Find an equation for the nonmachinable cost n in terms of the machinable cost m. 1 pound is $ 2.74( machinable cost,
asked by alicia 
differential
solve dT/t=k(TTm(t)) using laplace transformation, where Tm=50+20U(th) and where U = unit step function.
asked by armut 
Math (12th)
What are the next three terms of the arithmetic sequence 18, 13, 8, 3,…?
asked by Michelle 
physics
two vectors A and B have magnitude such that A>B. We do not know the directions of the vectors. however we can say that the magnitude of the sum A+B must be between? a) B and 2A b)A and A+B c) AB and A+B d) AB and A e) B and A+B
asked by Kylie 
business
Can anyone help me with these two questions? How do the various interests in land and real estate differ? Where did this system originate?
asked by Anonymous 
anatomy
do you think there is a difference in the absolute force generated by males and females? I think the answer is yes just by the common knowledge that males are typically stronger than women. But, I'm not sure how to scientifically explain why a man's
asked by anon 
physics
If a person who weighs 125lb, rides a roller coaster with a 100m diameter loop at 30m/s. What force did the person exert?
asked by maria 
Math 8R  Homework Check
1/8 + 1/2 = 7/10 3/4 + 5/6 = 1 7/12 7/9 + 5/6 = 1 11/18 1/4 + 1/2 = 1 2/6 2/3 + 1/2 = 2
asked by Laruen 
math
How do I work out the problem 16 divided by 8/9?
asked by Math Geek 
math
Farmer Joe has a square piece of property surrounded by a fence. On 0.5 of the fenced property there is corn growing. On 0.6 of the remaining fenced area there are tomatoes planted. Which expression can be used to determine how much of the fenced area has
asked by Anonymous 
precalc
what are all the real zeros for 1x^5+2x^4+4x^3+19x^2+9x5?
asked by Danii 
phycology
Which one of the following instances is an example of qualitative change? A. Last year twoyearold Helga could not talk, but now she can carry on a conversation. B. Fifteenyearold Marty grew 3 inches over the summer. He is now taller than Dad. C.
asked by paul 
Calculus 2
Calculus work problem. John bought the following corner lot. Two sides are bounded by 2 roads the back is bounded by a stream that follows the curve y = x^3 + 8. He wants to build a house in the center of the lot. Where will that be? Please show all work
asked by Laura 
Math
Two of the ten most expensive cars in the world are the BMW Z8 and the Mercedes Benz CL 600. The prices of these two cars differ by more than $10,000. The price of the Z8 is $130,645. a) Assuming that you do not know which model is more expensive, write an
asked by Steph 
phycology
Individual differences originate as a result of three basic developmental influences. These influences can best be summed up as: A. heredity, genetics, and environment. B. heredity, environment, and maturation. C. family, friends, and ethnicity. D.
asked by paul 
boca high
3(k2)=5×k+2×k18, k=?
asked by gil 
Math(precalc)
what are all the real zeros for 1x^5+2x^4+4x^3+19x^2+9x5?
asked by Danii 
chemistry
calculate the vapor pressureof a solution of 20.0g sucrose (C12H12O6) in 80.0g water at 25 degrees celsius (vapor pressure, P, of pure water at 25C is 24torr)
asked by honeeey 
AP World History
What was the status of women during the Gupta Empire? Describe India's Political nature prior to 400 BCE.
asked by Sarah 
7th grade math  scientific notation help
12. 0.00581 13. 0.00105 14. 0.0000078 15. 0.000027 16. 0.000000132 17. 0.000000009
asked by Delilah 
geometry
angle JKN = 56 degree
asked by nik 
Math
Can you please give me an example of a function notation? Thanks.
asked by Emma 
social studies
list five conditions that you would place on a parolee as a crime prevention tool.
asked by sandra 
Computers
What are calculations entered into a spreadsheet called? Formulas? Or Values? I'm thinking its formulas but Values talks about calculations on a spreadsheet too.
asked by Brittany 
PE
any common activities between PE and science
asked by Salah 
word problems
58 feet of board divide in to three piece
asked by Anonymous 
science
all cells have smaller parts to keep the cell
asked by Anonymous 
Math
Sue drives 36 miles to the fair. Every 4 miles, she sees a sign to the fair. . How many signs will she see on her trip in all?
asked by Annie 
French
Give me a somewhat simple sentence to show that I know the direct/indirect!
asked by Bryce 
Language Arts
Would the phrase "sooner than" be a compound preposition? Thanks...
asked by Brandi 
English
what kind of clause is this? She left the door open(so that her kitten could come inside) whenever it was ready.
asked by Rhegan 
Algebra
Substitute the numbers in x and solve. 1) 4/5^x 2,1,0,1,2 2) 2^x 2,1,0,1,2
asked by Emma 
math
not a Q but wanted to say tks for help last nite. I'm 9 & live w/ my two 10y/o nephews AND we are in the same 4th grade class. We needed help and we all wanted a chance to post on this awesome site, so tks a bunch for helping! Even though our papers were
asked by 4th grade nightmare! 
Math
if you have a 30 and a 24 feet long if she put it all around the garden using a 6foot sections of fence how many fence posts will she need.
asked by Ariyana Torrence 
chemistry
what was the precipitate formed of pottasium bromide and lead nitrate mix with water?
asked by abonitalla cristina 
English
when and where i.e words we should use the sufix mis,mal,im,ir
asked by nanbala 
inft.101
How do you submitt to the black board?
asked by ronisha 
math  Quadratic Factor
how to you factor 4x^2
asked by Lisa 
algbra
how do you write an equation for: the sum of 4y and 18 minus 2y is 0
asked by jace 
science
if the expiremenal density of something is 2.66 but the true is 2.7 what is the percent error?
asked by Anonymous 
physical
A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by
asked by Christian 
science
why do exteremely hot particles emit certaion amount of light ?
asked by karun 
Math
It is greater than 43 and less than 52 if you add the digits the sum 8 right the number word
asked by Christy 
French
So a direct object is to WHOM or to WHAT. But what does TO WHAT mean? How do you identify an indirect object>
asked by Bryce 
BIS 245 lab
need help
asked by Grace 
Algebra
(94n)(4)
asked by Brooke 
math
3x times x
asked by tara 
english ap
how do you find rhetorical devices?
asked by rose 
Order of Operations
7/6+(104)x5 35?
asked by Lance