Questions Asked on
March 26, 2013

precalculus
Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 90 and 70 degrees, respectively. Assuming t is the number of hours since
asked by marie darling 
Scatter plots
Which of the following types of information is NOT suited for display on a scatter plot? 1. relationship between age and number of books read in a year 2. relationship between height and shoe size 3. relationship between calories consumed and body weight
asked by Mr.Brain 
Chemistry 140A
A gas cylinder containing 6.38 mol of neon has a pressure of 491 mm Hg at 295 K. If 3.22 mol of helium is added to this cylinder, at constant temperature and volume, what will be the pressure in the cylinder?
asked by Ashley 
Math Ms. Sue please
1. Given the altitude of lakes in feet: –12, –9, –14, –39, –49, –49, –18, –43, find the mean, median, mode, and range. (1 point) mean = –28.5, median = –29.1, mode = –49, range = 40 mean = –29.1, median = –49, mode = –28.5,
asked by Delilah 
Physics
A test rocket is launched vertically from ground level (y=0m), at time t=0.0 s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket has risen to 97 m and acquired a velocity of 40 m/s.
asked by Renay 
physics
Jesse travels 3.0 meters east and then turns and travels 4.0 meters north. The trip requires 35 seconds. What is his velocity?
asked by keisha 
Soc. StudiesMs. Sue
What was the first territory to shed blood in a civil war over slavery? A.Texas B.Kansas C.Missouri D.South Carolina I know there was blood shed in Kansasbut there is info that South Carolina was the first territory that had blood shed??? Can you help me?
asked by Cassie 
statistics
The National AIDS Behavioral Surveys interviewed a sample of adults in the cities where AIDS is most common. This sample included 782 heterosexuals who reported having more than one sexual partner in the past year. We can consider this an SRS of size 782
asked by Anonymous 
statistics
About 24% of all homes purchased on 2004 were considered investment properties. a random sample of 800 homes sold in 2004 is obtained. What is the probability that at most 200 homes are used as an investment property?
asked by Anonymous 
Consumer Math
On your last credit card statement, you had a previous balance of $567.18, payments of $120, a periodic rate of 1.56 percent, and new charges totaling $45.17. What is your new balance?
asked by Taylor 
Math Ms. Sue please
9. Name the triangles that are classified by angles. (1 point) right, scalene, isosceles scalene, isosceles, equilateral acute, right, obtuse obtuse, isosceles, acute I chose the answer "scalene, isosceles, equilateral" but the correct answer is "acute,
asked by Delilah 
BIOLOGY
The forward primer was provided by the manufacturer as a lyophilized powder. If the manufacturer delivers 127.4 nmoles of this primer, what volume of buffer should you dissolve it in to make a 100 μM stock?
asked by JEQPCR 
math
A basketball team needs 5 players. The team can choose from a group of 7 players. Explain how to find the number of combinations of players that can e on the team.
asked by patty 
Physics
The power radiated by the sun is 3.90 1026 W. The earth orbits the sun in a nearly circular orbit of radius 1.50 1011 m. The earth's axis of rotation is tilted by 27° relative to the plane of the orbit (see the drawing), so sunlight does not strike the
asked by Elizabeth 
math help please
19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir
asked by Delilah 
economics
Is your consumer behavior influenced by advertising or the news? Discuss one or two examples of media that have influenced your desires or affected your consumer choices
asked by christian 
Chemistry
Enough of a monoprotic acid is dissolved in water to produce a 0.0190 M solution. The pH of the resulting solution is 2.33. Calculate the Ka for the acid.
asked by Ann 
Math (Please help)
you need to make 20ml of a 20% glucose solution. I need to calculate the amount of glucose and water needed. I know that the M.W is 180.16 for glucose. Would I multiply 20ml times 20 percent first? Thank you!
asked by Anonymous 
math
How many integers satisfy the inequality \left \frac { 10(x+1) } {x^2 + 2x + 3 } \right \geq 1?
asked by Austin 
CALCULUS HELP URGENT!!
find y' if arctan(xy)=6+x^(4)y
asked by Anonymous 
chemistry
A generic salt, AB, has a molar mass of 293 g/mol and a solubility of 2.20 g/L at 25 °C. What is the Ksp of this salt at 25 °C?
asked by charles 
physics
A cargo plane is moving with a horizontal velocity of vx = +225 m/s at a height of y = 920 m above level ground as shown in the figure below when it releases a package. Ignoring air resistance, how much time will it take the package to reach the ground?
asked by Dan 
physics
As part of a fundraiser, you want the new dean to bungee jump from a crane. The jump will be made from 44 m above a 2.5 m deep pool of Jello. A 30 m long bungee cord would be attached to the dean's ankle. You must convince the dean that your plan is safe
asked by Brandon 
chem
Given that Ka for HClO is 4.0 × 108 at 25 °C, what is the value of Kb for ClO– at 25 °C? Given that Kb for CH3CH2NH2 is 6.3 × 104 at 25 °C, what is the value of Ka for CH3CH2NH3 at 25 °C?
asked by Greg 
algebra
A model car is constructed with a scale of 1 : 15. If the actual car is 12 feet long, which proportion represents the length x of the model car?
asked by Danielle 
math
Consider the sequence t0 = 3, t1 = 3^3, t2 = 3^3^3 , t3 = 3^3^3^3,….. , defined by t0 = 3 and tn+1 = 3tn for n ≥ 0. What are the last 2 digits of t3 = 3^3^3^3 ? Show that the last 10 digits of tk are the same for all k ≥ 10
asked by kk 
Chemistry
Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.
asked by Anonymous 
world history
What characteristics did fascism under Mussolini and Hitler have in common with communism under Stalin?
asked by Patricia 
Bisectors in a Triangle
Let ABC have side lengths AB=13, AC=14, and BC=15. There are two circles located inside
asked by Knights 
chem
The molar solubility of MgF2 at 25°C is 1.2 103 mol/L. Calculate Ksp. i got the euqation ksp= [F]^2[Mg]2+ and plugged in 1.2e3 and got 1.7e9 but it is wrong. also this question If 0.0968 g of CaF2 dissolves per liter of solution, calculate the
asked by hannah 
Physics
The Navy wants a new airplane launcher for their aircraft carriers that is basically a large spring and your job is to determine the necessary spring constant. The launcher pushes the plane for a short distance along a much longer runway. During that same
asked by Brandon 
tourism,geography,economics and math literacy
What career can I do with geography,economics,tourism and math literacy
asked by nompumelelo dube 
Physics
At the train station, you notice a large horizontal spring at the end of the track where the train comes in. This is a safety device to stop the train so that it will not plow through the station if the engineer misjudges the stopping distance. While
asked by Brandon 
economics
Give an example of a fairly major purchasing decision you've made in your lifetime. How did you justify the purchase? How did you prepare for it financially once you decided to make the purchase?
asked by christian 
Science
About 10 percent of the earth’s surface are covered with glaciers today. Where are most of these glaciers found
asked by Tperry 
AlgebraB2
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = 0.04x+ 8.3x + 4.3, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of
asked by Jennifer W. 
Math
i need help on a couple of questions. I did all my other questions but i need a lot of help with the word problems... 1. The side length of a small square is s. A larger square has a perimeter of 124.8 cm. Its sides are 3.2 cm longer than those of the
asked by Olly 
chemistry
A metal block of mass 11.5 g gives off 360 J of heat while cooling from 99.7 to 32.5 oC. What is the specific heat of the metal in J g1 oC1?
asked by d 
Chemistry Solubility help!!!!!!!!!
INFORMATION: [HCl] = 0.1388 M We placed 0.5 g Ca(OH)2 in 100 mL of the following solutions: Flask A: Distilled Water (7.4 mL of HCl needed to titrate) Flask B: 0.05 NaOH (12.1 mL of HCl needed to titrate) Flask C: 0.025 NaOH (10.8 mL of HCl needed to
asked by Sally 
physical science
during a race a runner runs at a speed of 6 m/s. 2 seconds later she is running at a speed of 10 m/s. what is runners acceleration? show your work.
asked by trina 
Geometry
ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the circumcenter of ABC as O and the orthocenter of ABC as H. If AO=AH, what is the value of \angle ABC (in degrees)?
asked by Dan 
Math
The cost of Admission to a fair is $10, plus $3 per ride. An equation for this relation is C=10+3r, where r represents the number of rides a person goes on, and C represents the total cost of admission and rides. Make a table of values for the relation .
asked by Cherie 
chemistry
85.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar? Specific heat of water = 4.18 Specific heat of steel = 0.452 My answer
asked by Joshua 
Physics
A stainlesssteel orthodontic wire is applied to a tooth, as in the figure below. The wire has an unstretched length of 3.42 cm and a radius of 0.14 mm. If the wire is stretched 0.13 mm, find the magnitude and direction of the force on the tooth. Disregard
asked by Sam 
chemistry
A metal block of mass 11.5 g gives off 360 J of heat while cooling from 99.7 to 32.5 oC. What is the specific heat of the metal in J g1 oC1?
asked by d 
lit
what are the symbols of the story tuesday siesta?
asked by lauren 
maths
Suppose there are 10 coins laid out in front of you. All of the coins are fair (i.e. have an equal chance of heads or tails) except one, which flips to heads every time. You draw one coin at random and flip it 5 times. If each of the 5 flips results in
asked by sana 
chemistry
A piece of solid carbon dioxide with a mass of 5.60 g is placed in a 10.0L vessel that already contains air at 715 torr and 23 C
asked by Anonymous 
Physics
Your artist friend's new work is a simple, highimpact kinetic sculpture called 'Destruction.' A 200kg steel block is hung from the ceiling by an 8footlong rope. A second rope is attached to the side of the block. The other end of this second rope is
asked by Brandon 
MathPopulation Word Problem
The population of rabbits in a national forest is modeled by the formula P=8,600+650 ln(t+1) where "t" is the number of years from the present. a)How many rabbits are now in the forest b)Estimate when it will take for the number of rabbits to reach 12,000?
asked by Jake 
Math(Please help) Thank you
How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water
asked by Anonymous 
English
1. The purpose of evaluating the sources of your research material is to test: A. the currency of information. B. the reliability of the information. C. whether the information is scholarly. D. which Web sites are legitimate. im confused between B & C 2.
asked by Amy 
MATH, 3rd time i posted this
can someone please help me, i posted this like 3 times. i need help on a couple of questions. I did all my other questions but i need a lot of help with the word problems... 1. The side length of a small square is s. A larger square has a perimeter of
asked by Olly 
physics
Starting from rest, a 10.7 kg block slides 2.60 m down to the bottom of a frictionless ramp inclined 30.0° from the floor. The block then slides an additional 4.70 m along the floor before coming to a stop. (a) Determine the speed of the block at the
asked by Rob 
Statistics
A standard deck of 52 playing cards is composed of 4 suits. Each mix contains 13 cards. Jacks, Queens, and Kings are considered face cards. Assume three cards are selected without replacement. Calculate the probability of drawing two hearts, followed by a
asked by Bill 
Physics
The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.7 × 1010 T. The wave passes perpendicularly through an open window, the area of which is 0.23 m2. How much energy does this wave carry
asked by Anonymous 
Calc.
A dog kennel owner needs to build a dog run (rectangular area) adjacent to a kennel cage (so that it is in the shape of a rectangle, but only three sides need to be built one long side is already there). The short side walls of the run are to be cinder
asked by John 
chemistry
85.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar? Specific heat of water = 4.18 Specific heat of steel = 0.452 My answer
asked by Joshua 
Chemistry
Volume of reaction flask is 2ml. There are 273 nanomoles of molecular oxygen (O2)/ml of reaction volume at 25*C. What is the amount of atomic oxygen (nanomoles) in the reaction flask?
asked by Chantèl 
Statistics
Assume the weights of men are normally distributed having a mean of 185 lbs and a standard deviation of 17 pounds. A. Calculate the probability a randomly selected man weights less than 225 lbs B. Approximately 72% of men’s weights exceed how many
asked by Bill 
Physics
The ion source in a mass spectrometer produces both triply and quadruply ionized species, X3+ and X4+. The difference in mass between these species is too small to be detected. Both species are accelerated through the same electric potential difference,
asked by Anonymous 
HUMAN AND ENVIRONMENTAL
PROVIDE RECOMMENDATIONS ON HOW TO ADDRESS THE TOPIC THAT YOU IDENTIFIED IN THE PREVIOUS QUESTION
asked by PHINDULO 
math
A cleaner charges $0.50 per square foot to polish wood floors. A school hall has an area of 30 feet by 50 feet. What would be the total cost to polish the floor of the school hall? A.$80 B.$375 C.$750 D.$1,500 What is the answer?
asked by jenny 
algebra 1
the population of a city can be modeled using the equation p=40,000x(9/10)^x. one year the population was 23620. what was the following population a year later.
asked by Anonymous 
Biochemistry
Volume of reaction flask is 2ml. There are 273 nanomoles of molecular oxygen (O2)/ml of reaction volume at 25*C. What is the amount of atomic oxygen (nanomoles) in the reaction flask?
asked by Chantèl 
math
TOM bought a rectangular piece of land that was 3 miles long and 2 miles wide .Half of the land could be farmed .How many square miles could not be farmed?
asked by Doris 
Science
7. Which of the following changes gives no evidence that a chemical reaction has taken place? A cube of solid forms a puddle of liquid. A certain liquid is added to a solid, and bubbles of gas form. Two liquids are mixed, and a precipitate forms. Heating a
asked by SpiersTheAmazingHd 
Geometry
When you use the distance formula, you are building a _____ triangle whose hypotenuse goes between two given points. A.right B.equilateral C.acute D.None of these
asked by Brad 
Math
How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water
asked by Anonymous 
math
pat gave $24 to mary and linda in the ratio 1:3. how much money does linda get?
asked by sam 
geometry
what is tan1 3.5= to
asked by joan 
English
1. A global network connecting millions of computers worldwide is called: A. the World Wide Web. B. Facebook. C. the Internet. D. Internet Service Provider. is it C 2. Information with subject directories is categorized according to: A. references. B.
asked by Amy 
chemistry
A generic salt, AB, has a molar mass of 293 g/mol and a solubility of 2.20 g/L at 25 °C. What is the Ksp of this salt at 25 °C?
asked by charles 
Precal
Convert from DMS to Radians 1) 61degree 24' 2) 75degree 30' Convert from Radians to Degress 1) 2 2) 1.3 Please help how to solve and calculate it in calculator. I got confused. :( :)
asked by Isis 
math
Paul grew an average of 1/2" a month last year. If he was 4' 6" tall at the beginning of the year, how tall was he at the end of the year?
asked by Anonymous 
Geometry
ABCD is a quadrilateral inscribed in a circle with AB = 1, BC = 3, CD = 4 and DA = 6. What is the value of \sec^2 \angle BAD?
asked by Austin 
Math
Prove: If the hypotenuse and an acute angle of one triangle are congruent respectively to the hypotenuse and an acute angle of another right triangle, then the two triangles are congruent.
asked by Barb 
chemistry
A certain weak base has a Kb of 8.40 × 107. What concentration of this base will produce a pH of 10.34?
asked by Anonymous 
Physics
At the State Fair you see people trying to win a prize at a game booth. They are sliding a metal disk shaped like a puck up a wooden ramp so that it stops in a marked zone near the top of the ramp before sliding back down. You estimate that you can slide
asked by Brandon 
Collage Physics
n elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before
asked by Sian 
Physics
A stationary particle of charge q = 1.4 108 C is placed in a laser beam (an electromagnetic wave) whose intensity is 3.5 103 W/m2. Determine the magnitudes of the (a) electric and (b) magnetic forces exerted on the charge. If the charge is moving at a
asked by Elizabeth 
Math
Tom bought a rectangular piece of land thatwas 3 miles long and 2 miles wide . Half of the land could be farmed . How many square milescould not be farmed .
asked by Doris 
math
Tricia wants to determine the probability of getting two 1’s when two number cubes are rolled. She makes a tree diagram and uses it to list the possible outcomes
asked by xy 
multivariable calculus
Find the equation of the plane containing the points (1; 0; 0), (0; 2; 0) and (2; 1; 3).
asked by cheuk 
Algebra
What is the sum of all integer values of n satisfying 1 \leq n \leq 100, such that n^2  1 is a product of exactly two distinct prime numbers?
asked by Jack 
7th grade math
company A makes boxes of crackers that contains a mean of 30 crackers with a standard deviation of 2 crackers. company B makes boxes of crackers that contains a mean of 24 crackers with a standard deviation of 2 crackers. what can be said about the boxes
asked by dingbat 
Algebra
Find the smallest positive integer N \neq 23 such that the fraction \frac {N23} { 7N+6 } is not in simplest terms.
asked by John 
Geometry
Determine the number of subsets of A=\{1, 2, \ldots, 10\} whose sum of elements are greater than or equal to 28 .
asked by Dan 
Maths
Solve for X: log4(3x7)^2 = 10
asked by Jeconiah 
chemistry
for the reaction of 14.69 g of ethyl alcohol with 22.5 g of oxygen. which is the limiting reagent? how much CO2 will be produced? if 19.5 g of CO2 is actually produced, what is the percent yield? C2H5OH(1) + 3 O2 (g)  2 CO2 (g) + 3H2O(g)
asked by alex 
chemistry
Suppose 87.9 grams of FeCl3 reacts with excess aluminum metal to produce 22.3 grams of Fe. What would be the % yield? FeCl3 + Al > AlCl3 + Fe
asked by Amy 
Life orientation
3 environmental health hazard that cause ill health, crises and disasters
asked by Aluwani 
Calculus 1A
I am trying to find: dy/dx for y = sec(tan x) I have the answer, but I have no idea how to get there. I know that the derivative of sec x = sec x tan x and that the derivative of tan x is sec^2 x. But sec doesn't have an x, so ...?
asked by Mary 
Math
A dog kennel owner needs to build a dog run (rectangular area) adjacent to a kennel cage (so that it is in the shape of a rectangle, but only three sides need to be built one long side is already there). The short side walls of the run are to be cinder
asked by Anonymous 
Chemistry
How much silver is present in 3.5 ml of a 1 molar silver nitrate solution?
asked by Lindsey 
Physics
A beam of polarized light with an average intensity of 17.1 W/m2 is sent through a polarizer. The transmission axis makes an angle of 27° with respect to the direction of polarization. Determine the rms value of the electric field of the transmitted beam.
asked by Elizabeth 
engineering physical
An elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before
asked by Sian 
Chem
1)Which cations should form soluble sulfate compounds from (Sodium, calcium, silver, copper 2)? 2) which anions should form precipitates with barium ions from (sulfate, carbonate and iodide?) 3) which anions should form precipitates with silver ions? Write
asked by Katlyn 
chemistry
53.0 mL of a 1.50 M solution is diluted to a total volume of 258 mL. A 129mL portion of that solution is diluted by adding 195 mL of water. What is the final concentration? Assume the volumes are additive.
asked by Jen 
Chemistry
Which precipitate should react when HCl is added? Give REASONS for your prediction. The anions i have are Co3 and SO4 i wrote none of them react with HCl. I don't know what to write for the reason though please help me woth this one. Thanks!!!!
asked by Katlyn 
Science
Which part of an electric circuit resists the flow of charge when it changes electrical energy into other forms of energy? A. battery B. copper wires C. switch D. light bulb
asked by bubbie 
GRADE 12
IN 1015 LINES CRITICALLY DISCUSS 5 WAYS IN WHICH THE HUMAN OR ENVIRONMENTAL PROBLEM IMPARTS ON THE COMMUNITY .PROVIDE RELEVANT SOURCES TO SUPPORT YOUR CLAIMS
asked by PHINDULO 
Trigonometry
If \cot \left(\sin^{1} \frac{1}{5}\right) = m, what is the value of m^2?
asked by Steven 
Language Arts
pixie : giant :: kitten : lion Write the relationship phrase you used to complete this analogy.
asked by Gwen 
Social Studies
How did social controls shape Japenese identity and citizenship. In your response be sure to discuss the areas of religion and class structure. Please help as I do not really understand the question
asked by Cherie 
Language Arts (unfortunately, once again)
I hate to ask a similar question twice, but I am unable to describe the relationship between slain : snail :: flair : frail. I know the first three of five letters are switched, so would my relationship phrase be "switched" or "is switched to?"
asked by Gwen 
math
In factoring ax^2 + bx + c, what are the steps in finding the unknown "b"?
asked by Jane 
Statistics
In a certain game of chance a person pays $5 to play a game. A person randomly selects 2 integers ranging from 099. The host of the game then uses a random number generator to select 2 integers ranging from 099. If the players values and hosts values
asked by Bill 
chemistry
i am going crazy trying to figure this out. i just completed an experiment with heats of fusion and vaporization but for some reason i cant answer and explain this question would 20.0g of steam at 100 degree celsius be enough to melt 20.0g of ice at 0
asked by stazi 
6th Grade Math
Need help to explain to my daughter: A horsepower is the power needed to lift 33,000 pounds 1 foot in 1 minute. It is equivalent to 746 watts. Express 525 watts as a portion of a horsepower both as a fraction and a decimal rounded to the nearest
asked by Rick 
English
1. Research skills are fundamental to: A. academic writing. B. all types of writing. C. education, literature, business, and other industries. D. libraries. is it B
asked by Amy 
math trigonometry
There is a small circle and a big circle. A small circle has a radius of 1.5. What is the area of the big circle?
asked by joshua joyo 
algebra
is 5x + 2y = 8 look like horizontal, vertical, slanted right upwards,slanted right downwards?
asked by jr 
Soc. Studies
How did the 1860 election contribute to the breakup of the Union? A.by electing a president many believed would not protect Southern rights B.by electing a proslavery president whom the North would not tolerate C.by allowing freed slaves to vote D.by
asked by Cassie 
Collage Physics
An elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before
asked by Sian 
social studies
Were there any key events in Millard Fillmore's life that shaped their dream for the United States?
asked by Boobear 
Math
Calculate the morality of a solution made by mixing 250ml of 0.75M H2SO4 with 400ml of 2.5MH2SO4
asked by Alica 
science
at a construction site a crane lifts a block of mass,m,vertically upwards through a height of 70 m at constant speed by means of a strong cable.The block experiences a force of magnitude 8 N as a result of air friction as it is lifted vertically upwards.
asked by Thalente 
Algebra
a and b are digits such that \overline{120ab} is a multiple of 3, 5 and 7. What is the value of \overline{ab} ?
asked by Anonymous 
grammar
I [ran] around the track four times at the previous football game. OR I [have run] around the track four times at the previous football game?
asked by Celest 
Atmosphere (weather)
Finish this sentence. Why is the sky blue? The sky is blue because please help me!!
asked by Adaija 
Math
log(x2) +log8 (x4) =log6 (x1)
asked by Jeconiah 
Form a polynomial f(x)
Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: 3; i; 6+i f(x)=a( )
asked by Ashley 
chemistry
How many grams of ZnCl2 will be produced from 48 grams of zinc and 30 grams of HCL
asked by walter 
Use the intermediate value
Use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=4x^3+6x^27x+1; [4,2] f(4)=
asked by Ashley 
Statistics
Use this information to calculate the mean and standard deviation of this random variable. P(x) .25, .05, .55, .15
asked by Bill 
College Algebra! help!
Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: 4; i; 2+i f(x)=a( )
asked by Hailey 
chemistry
i am going crazy trying to figure this out. i just completed an experiment with heats of fusion and vaporization but for some reason i cant answer and explain this question would 20.0g of steam at 100 degree celsius be enough to melt 20.0g of ice at 0
asked by stazi 
algebra 10th grade
please help with this problem Your dad is taking Biology as part of the veterinarian program at the local community college. This semester he will spend a total of 40 hours in the biology lab, and he will take notes in class 6 hours per week. Define a
asked by mary 
History 203
What is the purpose of studying American history? What do we gain from doing so?
asked by Dottie 
Statistics
A pharmaceutical company claims its new medication relieves painful symptoms caused by tension headaches within 15 minutes. To investigate this claim, a local health clinic conducts a study of 45 patients who suffer from chronic tension headaches. Each
asked by Bill 
algebra
marissa earns $3.75 per hour at a local fast food restaurant. write an expression for the amount she earns and determine how much she is going to earn in 7 hours. A: 3.75x;$26.25 B: 7x;$26.25 C: 3.75x + 7x;$10.75 D: 7x;$3.75
asked by Anonymous 
Math
Chiang picked 12 apples. She gave 1/6 of the apples to each of her 5 friends. How many apples did each friend get?
asked by Anonymous 
english
Which of the following is NOT a potential consequence of plagiarism? A. Academic warning B. Academic probation C. Failing the course D. Cancellation from program im confused between C & D
asked by Amy 
physics
A particle with a +5.0 µC charge and a kinetic energy of 0.090 J is fired into a uniform magnetic field of magnitude 0.30 T. If the particle moves in a circular path of radius 3.0 m, determine its mass.
asked by erika 
social studies!!!
Does anyone know ten DIFFERENT physical features of algeria( in africa) !! If anyone can give me them ur aa life saver"!
asked by leslie 
Chemistry
If your solution’s final volume of 32.55 mL yields 3.6 grams of AgCl, determine the Molarity of the final solution. Also, how many milliliters of a 1.85 M solution of AgNO3 did you add to an excess of aqueous NaCl to provide the 3.6 grams of AgCl?
asked by Shoba 
Calculus
does the sum 3/(2^(n)1) converge or diverge? n=1>infinity
asked by Liz 
College algebra
Use the rationals theorem to find all the zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=x^32x^213x10 x=
asked by Karlee 
computer science
This week you will determine the time complexity for a game of your choice. You should select a game that can be played in algorithmic steps and determine the maximum time (in notation) it will take to play the game. Use the guidelines below in your
asked by Auto 
math pre calculus
find the following for the function f(x)=(x+5)^2(x2)^2 a.find the x and y intercepts, b.find the power function that the graph ressembles for large values of x c.determine the maximum number of turning points on the graph of f d.determine the behavior of
asked by laila 
pre calculus
use the seven step method to graph the following rational function: f(x)=3x^2+x4/2x^25x a. determine the symmetry of the function. b. find the x and y intercepts. c. find the verticle asymptote d.find the horizontal asymptote e.plot the points between
asked by asia 
Maths
Solve for x: 6log(x^2 +1)  x = 0
asked by Jeconiah 
english
"Panda Monium" I heard this from news could you please explain the meaning of this?
asked by naomie 
geography
The OB river flows through which region a. Central Asia b. Siberia c. Moldova d. Ukraine a or b not sure I think B is more correct am i right?
asked by Emily 
chemistry
how many moles of O2 are contained in 6.53 L with 297 K and 6.6 atm
asked by caroline 
College Algebra
Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree 5; Zeros: 3; i; 6+i F(x)=a ( )
asked by Chama 
10 grade algebra
solve 10(x+5)=130
asked by mary 
physics
A 2.6kg particle moving along the x axis has a velocity of +1.7 m/s as it passes through the origin. It is subjected to a single force, Fx, that varies with position, as shown below.
asked by Brandon 
History of Puerto Rico
Need info in English on biographies of political and cultural leaders of Puerto Rico between 18501950
asked by Ralph 
Math
Factor 4xsquared36x+81=0
asked by Dylan 
history
Why is john sutter important in California history? What types of natural resources would Fremont have listed in his reports?
asked by PLEASE HELP 
edu
Emergent literacy skills are enhanced by a.quantity and quality of print and audiovisual resources b. the family socioeconomic status and aspirations c.engaging in literacy event with other persons especially adults d. the educational or professional
asked by ray 
history
List the mexican war battles in order, by date.
asked by suzy 
PHYSICS......
Q1.a building has three alternative routes from the ground to the first floor. i)a flight of stairs at an angle of 45 degree. ii)a near flight ladder angle 85 degree. iii)a long zigzag slope at an angle of 15 degree. what are the disadvantages and
asked by Riana 
Statistics
A Manufacturer of torque converters claim only 1% of them are defective. A. Calculate the Mean number of defective converters in a shipment of 500 converters. B. Calculate the standard deviation in the defective torque converters in a shipment of 500
asked by Bill 
Calculus
Implicit differentiation of 5x^22xy+7^y
asked by C 
Statistics
According to a recent pole only 21% of Americans were satisfied with the direction the U.S. is heading. To investigate the reliability of the report an independent polling organization surveyed 500 Americans and inquired as to whether or not they were
asked by Bill 
Allgerbra
Please show me step by step how to Make a table of solutions for the equation,and then use the table to graph the equation. y = 2x 1
asked by Eric 
world history
What are two important differences between fascism and communism?
asked by Patricia 
English
The a in the word saving sounds like A. Ape B. pat C. Heated D. Naughty Is it a
asked by Tony 
English
When there are thousands of written materials floating in cyberspace, what is the most important criterion to consider when choosing sources of information for your research paper? A. Relevant B. Current C. Famous author D. Impressive Web site is it A
asked by Amy 
Algebra
simplify k+5 _____ 30k _______ 5k1 _____ 6k
asked by Jon 
Math
i did the other one but can someone help me with this one: Four = fifths of the sum of a number and three is equal to six and a half. What is the number? also ms. sue deleting my question was not very nice because it took me forever to type it and if you
asked by Ryley 
Chemistry
If your solution’s final volume of 32.55 mL yields 3.6 grams of AgCl, determine the Molarity of the final solution. Also, how many milliliters of a 1.85 M solution of AgNO3 did you add to an excess of aqueous NaCl to provide the 3.6 grams of AgCl?
asked by Shoba 
analytical chemistry
compund x is known to absorb at 510nm. If you dilute a solution containing x by 1/4, by how much does the absorbance increase or decrease. if it stays the same just state it stays the same.why
asked by ami 
stats
A researcher is interested in examining whether knowledge of a previous criminal record will affect the juryfs decision to acquit or convict the defendant. The researcher shows 15 participants a 4hour trial in which a woman is accused of passing bad
asked by Anonymous 
Calculus
Is the series 2/ln(n) convergent or divergent? n=3 to n=infinity
asked by Liz 
Physics
The ion source in a mass spectrometer produces both triply and quadruply ionized species, X3+ and X4+. The difference in mass between these species is too small to be detected. Both species are accelerated through the same electric potential difference,
asked by Anonymous 
mathematics
Solve simultaneous... y2x1=0 and x squared+xy5xy+2=0
asked by Jossie 
science
Monique heated the black substance with some corbon. Copper was formed. what are all the elements in the blue crystals ?
asked by Anonymous 
Algebra
Write the expression as a complex number in standard form. ____5____ 2 i =2+5i Did I get the right answer?
asked by Emma 
cjustice 200
Should judicial review be eliminated? Provide a detailed explanation for your answer. b) If judicial review were eliminated, what alternative means could be used to interpret the meaning of the Constitution?
asked by heather 
multivariable calculus
Describe the level surfaces of g(x; y; z) = x2  2y2 + z2
asked by cheuk 
Math
The interior dimensions of a chest are 4 feet length, 2 feet width and 3 feet height. How many 1foot cubes could fit in the chest?
asked by Anonymous 
math
Write the standard form of the equation of the circle x^2+y^2+4x2y20=0. Find the center and radius. How do I do this? pleaaase help.
asked by ayonna 
Math
Hiro went to the store after school to pick up groceries. His list said he needed to pick up one jug of milk, one loaf of bread, one dozen eggs and one package of cookies. Milk comes in 1%, 2% and 3.25% varieties. Bread comes in white and 100% whole wheat.
asked by Steve 
geometry
The volume of a small circle is 10 cubic meters. Find the volume of the larger sphere in cubis meters.
asked by Bryce 
chemistry
Which 0.10M solution below has the lowest pH? a) NaCl b) KCN c) LiF d) RbClO e) all have the same pH
asked by Anonymous 
Science
What are the four main gases in our atmosphere? Carbon dioxide oxygen nitrogen? I searched it up and it says argon is the other one but we haven't learned about that yet Would hydrogen be a main gas?
asked by Jerald 
CalculusPLZ HELP! =)
does the sum 3/(2^(n)1) converge or diverge? n=1>infinity
asked by Sara 
Algebra
Let N=11 ^ 2 \times 13 ^ 4 \times 17 ^ 6 . How many positive factors of N^2 are less than N but not a factor of N?
asked by Anonymous 
Physical Science
Which part of an electric circuit resists the flow of charge when it changes electrical energy into other forms of energy? A. battery B. copper wires C. switch D. light bulb i've posted this before but it's getting buried. i don't think its A or B.
asked by bubbie 
Use the rationals theorem
Use the rationals theorem to find all the zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=2x^3x^2+2x1
asked by Karlee 
Geometry
When writing a math expression, any time there is an open bracket "(", it is eventually followed by a closed bracket ")". When we have a complicated expression, there may be several brackets nested amongst each other, such as in the expression (x+1)*((x2)
asked by jason 
Use the intermediate value
Use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=9x^43x^2+5x1;[0,1]
asked by Jenn 
MATH
use the discriminant to determine whether the following equation have solutions that are : two different rational solutions : two different irrational solutions : exactly one rational solution : or two different imaginary solutions 7+5z^2=8z
asked by LIZY 
Physics. LAST PROBLEM!!
A small metal ball with a mass of m = 82.5 g is attached to a string of length l = 1.72 m. It is held at an angle of θ = 58.5° with respect to the vertical. The ball is then released. When the rope is vertical, the ball collides headon and perfectly
asked by Elena 
Physics, so confused
A cart of mass M1 = 5.00 kg and initial speed = 3.00 m/s collides head on with a second cart of mass M2 = 3.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. I am not sure how to find this answer without
asked by Morgan 
College algebra
Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: 3; i; 6+i f(x)=a( )
asked by Ashley 
math
alicie plans to use a square iece of plywood forthe tabletop. She wants to put tiles on each outside edge of th taletop Each tile measures 2 inche by 2 inches of each outside edge of the tableop
asked by roger 
Maths
Simplify the following: (54^1/4)/ (6^3/4)(12^1/2)
asked by Jeconiah 
Social Studies
Writeacher The period of time fir the social question is the Edo period. Sorry about thar!
asked by Cherie 
Maths
Find the vakue of x: (1)logx2 = 2 (2) log3x^2 = 1
asked by Jeconiah 
10 grade algebra
Solve the equation 2(x =10)=80
asked by mary 
maths
how can i find a general solution of g(x)when they give me g(X) =cos (x+30)and g(X)= 2sinx
asked by mazandie Magaduzela 
Chemistry
If you have 20.0g of a Maalox tablet, and 40mL of .1 M HCI, how much extra help from NaOH would you need to bring the acid to neutral? Back titrate using .05 mL NaOH, drop by drop. Please put this into a formula for me to figure out. Thanks.
asked by Pam 
NEEDS TO BE TURNED IN IN 5 MINUTES!! HELPPPP
find y' if arctan(xy)=6+(x^4)y
asked by Anonymous 
History
which native american tribes called New Mexico their home?
asked by PLEASE HELP 
math
for the given functions f and g, find the specified value of the following functions and state the domain of each one. f(x)=2+3/x; g(x)=3/x a.(fg)(2)= b.(f/g)(3)= how do I do this? I need help! it throws me off because of it being in fraction form.
asked by marie 
English
I have to annotate some notes and I'm not sure what a couple of these terms mean, your help would be much appreciated! Unifying Effect Analytical Writing Thesis Statement
asked by Amber 
PHYSICS  formula?
Here is one of my questions from my physics study. It tells me the answer (35 J), but how do I find that answer? I would appreciate a formula or step by step calculation. Thanks! :) A 30 kg kid on rollerskates is moving 1 m/s. His brother pushes him with a
asked by Anna 
science
How would life be different without resources taken for under earth's surface?
asked by Anonymous 
physical science
what is the electric force of attraction (in newtons) between a proton and an electron? assume the distance between them is 5*10 negetive11 meter
asked by joycelyn 
Medical Billing
Np pt having foot pain centering around rt great toe and sometomes shooting up her leg. PF exam revealed severe overgrowth og nail into surrounding tissues. Pt has a n workup for gout by the doctor. Surgery scheduled for wedge resection of skin of nail
asked by Anonymous 
math
can you divide a fraction into another fraction?
asked by Martin 
Microeconomics
Zuppann, Inc. has just completed a study of its production process for gadgets. It uses labor and capital to produce gadgets. It has determined that 1 more unit of labor would increase output by 200 gadgets. However an additional unit of capital would
asked by Hannah Wannans 
Statistics
A Manufacturer of torque converters claim only 1% of them are defective. A. In a shipment of 12 torque converters calculate the probability exactly 2 converters are defective. B. In a shipment of 35 converters, calculate the probability at least 1
asked by Bill 
Statistics
Assume the wait time to see a cardiologist at a certain clinic are uniformly distributed between 7 minutes and 23 minutes. Calculate the probability a randomly selected patient waits at least 18 minutes to see the cardiologist. The random variable, Z, is
asked by Bill 
algerba
2k squared + 4k= 10 How would I solve
asked by suzy 
algebra 1
which equation models an exponential decay y=1/4x500^x 1/3y=6x100^x y=0.5x8^x y=23x(1/2)^x y=0.004x2^x i think it is d
asked by Anonymous 
math
what would 1.25 be as a fraction?
asked by Martin 
algebra
solve for "x" in the following equation: 27x3(x6)= 6 F: 2 G: 1/2 H: 1/2 J: 2
asked by Anonymous 
chemistry
why spectrophotometric bioassay indirectly determine the concentration of glucose in solution
asked by amin 
math
can someone tell me what would 0.0625 be as a fraction?
asked by Amanda 
MATH
IF LOAN BALANCE IS 34,000.00 AND YOU PAY $597.21 MONTHLY AT 7.50 INTEREST HOW MUCH TIME WILL YOU CUT OFF TERM OF LOAN IF YOU ADD 100.00 TO MONTHLY PAYMENT
asked by LILLY 
math
and what would 0.1875 be as a fraction?
asked by Amanda 
Find the complex zeros
Find the complex zeros of the polynomial function. Write f in the factored form. f(x)=x^33x^2+7x5 f(x)=
asked by Ashley 
math
marissa earns $3.75 per hour at a local fast food restaurant. write an expression for the amount she earns and determine how much she is going to earn in 7 hours. A: 3.75x;$26.25 B: 7x;$26.25 C: 3.75x + 7x;$10.75 D: 7x;$3.75
asked by Anonymous 
math
the function f is defined: f(x)= x+3 if 2
asked by mercedes 
math
4/x=radical111/3
asked by amber 
physics
A water tower is 100m tall and has a diameter of 0.77 cm^3, what is the velocity of the water?
asked by alexis 
social studies
Can't unscramble 3 middle eastern names...ihaaBm, Bpsouors, hrpuitReE esavr
asked by jen 
Broadcasting/english
FYI it's in ALL caps because our teacher requires it.. But can someone read through my story I got off mlive and see if some corrections need to be made. I'm not sure If i did it right FORMER DETROIT POLICE OFICER IS ACCUSED OF LYING IN COURT IN ORDER TO
asked by Blaze 
Physics
A brick is thrown off a building at a 25 degree angle at 10m/s, it lands 40 meters away, How high is the building?
asked by Joshua 
math
6 male students and 3 female students sit around a round table. The probability that no 2 female students sit beside each other can be expressed as a/b, where a and b are coprime positive integers. What is the value of a+b?
asked by ritvik 
Life orientation
Identify and describe 3 enviromental health hazarda that cause ill health, crises in your community and globaly
asked by Mpho 
Algerbra
Solve the equation 15(x+3)=75
asked by Eric 
algebra
Please Helpppp!!! Mother having a hard time with radicals. A playground is shaped like a rectangle with a width 5 times its length (l). What is a simplified expression for the distance between opposite corners of the playground? Please can you post
asked by Kristine 
PHYSICS
Here is one of my questions from my physics study. It tells me the answer (35 J), but how do I find that answer? I would appreciate a formula or step by step calculation. Thanks! :) A 30 kg kid on rollerskates is moving 1 m/s. His brother pushes him with a
asked by Sarah 
algebra 1
on january 1,1997 you deposit $200.00 in a bank account paying 5% interest compunded annually on december 31 of each year. which of the following will be the account balance on january 1,2005
asked by Anonymous 
math
(2)^0*(2)^3*(2)^4/(2)^3
asked by Rose 
multivariable calculus
Consider the surface given by the equation: 2x2  3z2  4x 4y  12z + 2 = 0 (a) Write in standard form ) (b) Determine and classify the traces with planes parallel to the xy, xz and yz planes. (c) Hence classify the surface.
asked by cheuk 
algebra 1
on january 1,1997 you deposit $200.00 in a bank account paying 5% interest compunded annually on december 31 of each year. which of the following will be the account balance on january 1,2005
asked by Anonymous 
Dynamic
A block of mass m is released from a height of R. The block slides down along the path ABC. At point C the block collides a spring of sti ness k. (a) If the circular arc AB is frictionless and the coecient of kinetic friction between the block and surface
asked by None 
business
what is the purchase price of eight soft corporation bonds with an annual interest rat of 8 1/2% and a current market price of 83? The commission charge is $5 per bond. the date of the transaction is January 1, and the bond pays on Otober 1 and april 1.
asked by angel 
Life orientation
Discribe the life style of cancer and explain 5(more) factors that contribute to the cancer
asked by Lucky 
physics
How to calculate the series AC coupling capacitance? Is there an equation for this? Thank you for any help
asked by Sarah 
maths
An iron rod when cut into pieces each of 30 cm length, a piece of 7 cm is left out. However, if each piece is of 28 cm length, a piece of 5 cm is left out. What is the length of the shortest such rod?
asked by chandana 
Algebra
As x ranges over all real values, what is the minimum value of f(x)=x123+x456 + x789
asked by Stranger 
English
"The song of Wandering Aengus" is a (n) ________poem. A: epic B: allegorical C: dramatic D: prose Answer : C ?
asked by Ciara 
Calculus
What is the connection between improper integrals, Riemann sums, and the integral test?
asked by Kendra 
English
For the speaker in "Local Sensibilities,"pineapples represent: A: His favorite food. B: A Thanksgiveing ham. C: tourists D: work. Answer: B ?
asked by Ciara 
math
find the area of a table top with 7/8 of a foot length and 3/5 of a foot wide.
asked by tara 
English
The tone of "A smile" is ? A: Hopeful B: Cheerful. C: tense D: light Answer : D In "Boast Not , Proud English," the writer is protesting against: A: Prejudice B: Blasphemy C: Religion D: tolerance Answer: C ? In "Birches," Frost compares the broken ice
asked by Ciara 
Physics
A 5.50kg ball, moving to the right at a velocity of +2.35 m/s on a frictionless table, collides headon with a stationary 7.60kg ball. Find the final velocities of the balls if the collision meet the following conditions. (a) elastic 5.5kg ball =
asked by Anonymous 
Science
When hot magma rises toward the crust the process is called what
asked by Jerald 
Algebra
Consider all 2 digit numbers N such that the last 2 digits of N^2 are N itself. What is the sum of all these 2 digit numbers?
asked by John 
math
solve the polynomial inequality and graph the solution set on a real number line. set in interval notation. x^3+2x^24x8>0 I have been staring at this problem for the last 15 minutes because I just don't understand it, somebody please help me?
asked by adrienne 
algebra 1
which equation models an exponential decay y=1/4x500^x 1/3y=6x100^x y=0.5x8^x y=23x(1/2)^x y=0.004x2^x i think it is d
asked by Anonymous 
Geometry
Two points are chosen uniformly at random on the unit circle and joined to make a chord C_1. This process is repeated 3 more times to get chords C_2, C_3, C_4. The probability that no pair of chords intersect can be expressed as \frac{a}{b} where a and b
asked by jason 
Precalculus
Convert from DMS to Radians 1)61degree 24' 2) 75degree 30' Convert from Radians to Degrees 1) 2 2) 1.3 Please Help me, just tell me how to solve them and do it in the calculator.
asked by Isis 
Geometry
Two points are chosen uniformly at random on the unit circle and joined to make a chord C_1. This process is repeated 3 more times to get chords C_2, C_3, C_4. The probability that no pair of chords intersect can be expressed as \frac{a}{b} where a and b
asked by jason 
Math
6 quarters, 4 dimes, 3 nickels, 10 pennies. what is the probability you will get at least one of each coin in change of 1 dollar
asked by Grace 
Geometry
ABC is an isosceles triangle where AB = AC and BC = 60. D is a point on BC such that the perpendicular distance from D to AB and AC is 16 and 32, respectively. What is the length of AB?
asked by Dan 
calculus 1
differentiate x(x3)^2 do I product and chain rule?
asked by visoth 
science
should'nt i use the equation mgh+half mv^2before=mgh+half mv^2aftr?
asked by Thalente 
science
should'nt i use the equation mgh+half mv^2before=mgh+half mv^2aftr?.
asked by Thalente 
Algebra
Given f(x) = (x1)(x2) + (x2)(x5) + (x  3)(x8), what are the sum of the roots of f(x)?
asked by Sarah 
Calculus
The volume of the 3dimensional structure formed by rotating the circle x^2 + (y5)^2 = 1 around the xaxis can be expressed as V = a\pi^2. What is the value of a?
asked by Steven 
Maths
Slove for x: ln (x^2 6x 16) = 5
asked by Jeconiah