Questions Asked on
May 19, 2014

Chemistry
Consider the following reaction: CaCO3(s)→CaO(s)+CO2(g). Estimate ΔG∘ for this reaction at each of the following temperatures. (Assume that ΔH∘ and ΔS∘ do not change too much within the given temperature range.) for 310K,1070,1470 this is what i
asked by Ty 
Geometry
Martin wants to use coordinate geometry to prove that the opposite sides of a rectangle are congruent. He places parallelogram ABCD in the coordinate plane so that A is (0, 0), B is (a, 0), C is (a, b), and D is (0, b). What formula can he use to determine
asked by Jeremy 
Algebra
the table shows the results of a survey of college students. find the probability that a student's first class of the day is a humanities class, given the student is female. First class of the day for college students male female humanities 70 80 science
asked by Kathryn 
algebra 2
A drama club is planning a bus trip to new york city to see a broadway play. the cost per person for the bus renatl varies inversely as the number of people going on the trip. It will cost $30 per person if 44 people go on the trip. How much will it cost
asked by Amy 
Algebra
What is the median of the data set below? 275, 257, 301, 218, 265, 242, 201 • 201 • 230 • 257 • 270
asked by Sandra 
physics
A simple lever is used to lift a heavy load. When a 60N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show that the weight of the load is 360 N.
asked by Peg 
Algebra 2
Amanda surveyed 20 juniors and seniors at Delamar high school to find the number of hours per week they spend working at parttime jobs. Her results are shown below. Juniors: 20,10,20,10,15,0,0,10,20,15 Seniors: 20,20,10,10,0,0,0,10,0,10 which statement
asked by Danny 
Algebra 2
the test score for a math class are shown below. 81,84,82,93,81,85,95,89,86,94 what are the mean, median, and mode of the data set?
asked by wendy 
Finite Math
The price of a new car is $24,000. Assume that an individual makes a down payment of 25% toward the purchase of the car and secures financing for the balance at the rate of 10%/year compounded monthly. (Round your answers to the nearest cent.) (a) What
asked by Savanna 
Algebra
Which is the degree measure of an angle whose tangent is 5.67? Round the answer to the nearest whole number.
asked by Mike 
math Question
what is S10 for 1+3+9+27+...? 9,841 29,525 14,762 29,524
asked by Anonymous 
Chemistry
If one mole of each is dissolved in 1.00 L of water, which will lower the vapor pressure the most? Why? A)C12H22O11 B)C3H7OH C)NaNO3 D)MgCl
asked by Scarlet 
math Question
the 5th term in a geometric sequence is 160. The 7th term is 40. What are the possible values of the 6th term of the sequence +70 70 +80 80
asked by kristi 
math Question
Find an equation that models a hyperbolic lens with a=12 inches and foci that are 30 inches apart. assume that the center of the hyperbola is the origin and the transverse axis is vertical.
asked by brian 
Math
Garrett throws a dart at a circular dart board. The dart board has a radius, and the bull's eye in the center of the dart board has a radius of 6 inches. What is the probability that a dart thrown at random within the dartboard will hit the bull's eye?
asked by Kathryn 
Science
1. Which of the following types of waste should not be recycled at home? a. expired medicines b. glass bottles c. papers d. plastic bags 2. Which of the following is NOT a method of disposing hazardous wastes? a. burying them in deep rock layers b.
asked by Calvin 
Algebra 2
The test scores for a math class are shown below. 81,84,82,93,81,85,95,89,86,94 What is the standard deviation of the data set? Roun your answer to the nearest tenth 4.9 5.5 5.3 5.1
asked by Whitney 
Math help
You roll a standard, six sided number cube. what is the probability of rolling a prime number or a number greater than 2.
asked by Roonie 
maths
a boy walks 1260m on a bearing of120 degree, how far south is he from his starting point?
asked by adebimpe 
math
there are 4 blue tile,s 3 yellow tiles, 5 red tiles, and 2 green tiles. he draws a tile replaces it, and draws another tile. what is the probability he will draw a blue tile on both
asked by heather 
Math
Top ten scores on a quiz in two classes are listed below Class A 100,100,100,90,95,85,92,98,92,88 class B 100,100,98,95,95,96,95,92,81,88 which statement is true concerning the data a. the mode is the same for both classes b. the range is the same for both
asked by Austin 
maths
Write 1/2^1n in non fractional form.
asked by Shane 
Math Question
What is the 50th term of the sequence that begins 6,0,6,12? 292 288 286 290
asked by Josh 
Algebra 2
find the exact value of cos 300 degrees.
asked by Alex 
algebra
evaluate csc 7pi/6
asked by Anonymous 
ALGEBRA
A store sells five models of cameras for $190.00, $420.00, $270.00, $300.00, and $420.00. If the sales tax rate is 6%, what are the mean, median, mode, and range of the total cost of the cameras? • mean = $318.00 median =$339.20 mode = $445.20 range =
asked by Sandra 
Algebra 2
A beam rests against a wall, forming a 50 degree with the floor. Use the function y=9 sec 0 to find the length of the beam to the nearest tenth of a foot. choice: 14.0ft, 11.ft7, 5.8ft, 6.9ft
asked by Kathryn 
math
The test scores for a math class are shown below 83,85,82,93,83,84,95,87,86,94 what is the standard deviation of the data set?
asked by heather 
Math
Find the period and the amplitude of the periodic function y=3cos 4x
asked by kenny 
algebra
Which cosine function has maximum of 2, and a period of 2pi/3
asked by Kathryn 
Algebra 2
Find the period and the amplitude of the periodic function. y=4 cos 8x
asked by Austin 
3rd grade math
Will arrived at his mother's office at 3 P.M. It took him 30 minutes to walk from his home to the mall. He was in the mall for 45 minutes. It then took him 15 minutes to walk to his mother's office. At what time did Will leave home?
asked by Lindsey 
Chemistry
Calculate the enthalpy change, ∆H in kJ, for the reaction H2O(s) → H2(g) + 1/2O2(g) Use the following: A. –291.9 kJ B. +291.9 kJ C. –279.9 k D. +279.9 kJ D??
asked by Angela 
Chemistry
A sample of gas occupies 100ml at 27 degree Celsius and 740mm pressure. The temperature the gas will have,when its volume is changed to 80ml at 740mm pressure is?
asked by Angel 
Algebra
What are the foci of the hyperbola with equation 16y^29x^2=144
asked by Jennifer 
Algebra
there are 10 students in a social studies class. three students will be selected to present their term projects today. In how many different orders canthree students be selected?
asked by Kim 
algebra1
Help me please!!!! Solve. (–18x3 + 17x + 6) ÷ (3x + 2) (1point) –6x^2 + 4x + 3 6x^2 + 4x – 3 –6x^2 + 4x – 3 6x^2 – 4x + 3 The width, w, of a rectangular garden is x – 2. The area of the garden is x^3 — 2x – 4. What is an expression for
asked by Tommy 
Math
In triangle RST, angle S is a right angle and cdc R=13/12. What is Tan T? answers: 13/5, 12/13, 12/5, 5/12
asked by Sam 
math
In triangle PQR, m
asked by heather 
Math
Which cosine function has maximum of 0.5, a minimum of 0.5, and a period of 2pi/3?
asked by Kim 
Math Question
Find an equation that models a hyperbolic lens with a=16 inches and foci that are 40 inches apart. Assume that the center of the hyperbola is the origin and the transverse axis is vertical
asked by Heather 
HELP I DON'T UNDERSTAND THIS QUESTION !
Earth's energy sources include both renewable and nonrenewable resources. Name at least three sources of energy that could be used in your house.Then describe the ideal energy source for generating most of your home's electricity and explain why you chose
asked by kelsey 
English Hamlet
Horatio was asked to speak to the ghost because: a. He was not afraid b. He had seen the ghost the night before c. He was a scholar d. He could speak Danish to the ghost I picked B. Is that correct?
asked by Scarlet 
Physics
a point charge q, mass m is flying up at the speed v(0)= v 0 from the distance x(0)=L from a uniformly and positively charged thin plate, its linear density equal p. determine the maximum distance of a particle from the plate
asked by David 
science help
Every individual, including young people, can make decisions to use resources wisely. Use the terms reduce, reuse, and recycle to explain how the students in the image can help minimize solid waste.
asked by kelsey 
Physics
Calculate the equilibrium position of a third charge of 6.79 x 10^9 C that is positioned between an 8 x 10^9 C charge and a 12 x 10^9 c charge.
asked by Sam 
Physics
a 40kg girl and a 30kg boy face each other on friction free roller skates. the boy pushes the girl,
asked by Leah 
Writing
How are mobile computing, Web 2.0, and social media changing how IT systems are used?
asked by Laura 
Algebra 2
Garrett thros a dart at a circular dart board. the dart board has a radius of 16 inches, and the bull's eye in the center of the dart board has a radius of 6 inches. What is the probability that a dart thrown at random within the dartboard will hit the
asked by kelly 
math
Taylor surveys students in one grade level who own at least one pet. She finds that 50% of the students surveyed own 2 pets, 3 students own 3 pets each, and 2 students own 4 pets each. Eight of the students in the grade own 1 pet. Considering the number of
asked by Anonymous 
Math Help? Check my answers.
1. Name the coefficients in the polynomial. 4x^2 + 3x  3 4, 3, 3 4, 3, 4, 3, 3, 4, 3, 2. How many terms are in the following polynomial? 6x^4 + 3x^3  2x^2 + 15x  14 5 4 3 2 3. In the expression 7x  5x^2 + 5, what is the coefficient of x? 7 5 5 7
asked by Lydia 
CHEMISTRY
Determine the numbers of liters of oxygen required to oxidize 46 g of carbon to make carbon monoxide at STP?
asked by VIC 
Algebra
How do you find the excluded value if there is another variable or number in the denominator? Such as the equation 12(a) over a squared minus 3(a) minus 10?
asked by Haley 
Social Studies
1. In a typical rural village in Mexico, you might expect to find that most people living on farms get their food by a. growing their own. b. buying what they need at large supermarkets. c. buying what they need at small supermarkets. d. gathering nuts and
asked by Calvin 
Math
A beam tests against a wall, forming a 50 degrees with the floor. Use the function y=9 sec 0 to find the length of the beam to the nearest tenth of a foot. 14.0 ft 11.7 ft 5.8 ft 6.9 B?
asked by Mike 
Multiple Choice
Absolute zero is A. the temperature at which the motion of particles theoretically ceases. B. defined as 0°C. C. the triple point for water. D. all of the above A???
asked by Angela 
math!
A shopkeeper had 330 tangerines. He put some of them into 15 cartons containing 12 tangerines each. He then put the rest into 14 cartons, each containing the same number of tangerines. How many tangerines were in each of the cartons of the 14 cartons and
asked by anon. 
Algebra 2
Is the relationship between the variables in the table a direct variation, an inverse variation, both, or neither? if it is a direct or inverse variation, write a function to model it. x 2 5 15 20 y 20 15 2 2 a. inverse variation;y=10/x b. neither c.
asked by kathy 
Calculus
An inverted conical tank is 3m tall and 1m in diameter at its widest point. The water is being pumped out of a spout 2m above the top of the tank. Recall that the density of water is = 1000kg/m^3 (a) Find the work needed to empty the tank if it is full.
asked by Timmy 
English
1. As I was leaving home, my parents arrived. 2. When I was leaving home, my parents arrived. 3. As I left home, my parents arrived. 4. When I left home, my parents arrived.  Which sentences are grammatical? Do they have the same
asked by rfvv 
Science
A team of dogs pulled a sled across the snow a distance of 45.5 meters with a horizontal force of 200 newtons. How much work did the team of dogs do?
asked by Anonymous 
Stats
A particular report included the following table classifying 713 fatal bicycle accidents according to time of day the accident occurred. Time of Day Number of Accidents Midnight to 3 a.m. 36 3 a.m. to 6 a.m. 29 6 a.m. to 9 a.m. 65 9 a.m. to Noon 78 Noon to
asked by Mzba 
math
can you me the answer from fraction must be in simplest form!!!!
asked by isabelle 
Calculus answer check
A brand new stock is also called an initial public offering. This model predicts the percent overvaluation of a stock as R(t)=9t((t3)^3/2.718) where is the overvaluation in percent and t is the time in months after the initial issue. Use the information
asked by Liz 
Math
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = 3x^2 + 9x + 3.
asked by Kim 
Physics
What is the centre of mass if the mass of the earth is 81 times that of the moon and the distance between them is 384 Mm=60 rj ?
asked by Physics: centre of mass? 
maths
draw the time temperature graph from 8a.m to 4p.m of a particular day at 15 minutes time interval. study the graph and draw the inference.
asked by saiyam gupta 
math
The test Keyshawn's class took finished at 10:30 A.M. The first part of the test took 30 minutes. There was a 15 minute break. The second part of the test also took 30 minutes. At what time did the test start?
asked by Lindsey 
Algebra 1
Marie has a square piece of cloth. She needs another piece with a length 2 inches shorter than the side of the square piece and a width 2 inches longer. The area for the new piece of cloth is 780 in^2. What will be the dimensions of the new piece of cloth?
asked by Victoria 
social studies
is it true or false that congress set up NASA in response to the soviet blockade of Berlin
asked by candy 
Stats Psychology
ApopulationofN=10scoreshasameanof μ = 6. After one score is removed, the mean is found to be M = 5. What is the value of the score that was removed?
asked by Mia 
chemistry
how to prepare 10g per litre of hydrochloric acid
asked by dhinakaran 
algebra
A textbook store sold a combined total of 205history and math textbooks in a week. The number of history textbooks sold was 87more than the number of math textbooks sold. How many textbooks of each type were sold?
asked by Anonymous 
Algebra/can you explain how this is set up
Evaluate the expression 150^P1 thank you
asked by Mary Ann 
math
Austin spent an equal amount of money on 5 DVDs and 7 CDs. Each DVD cost 30 cents more than each CD. How much did Austin spend altogether?
asked by marilou 
Math
If you solve this you are officially amazing! "The diagonals of a trapezoid are perpendicular and have lengths 8 and 10. Find the length of the median of the trapezoid."
asked by Sheenybeany 
Science
A table, with four legs, weighs 5 N. The area of contact of one of its leg with the ground is 2.5 x 103 m². A man, with a mass of 9 kg, sits on the centre of the tabletop. What is the total pressure exerted on the ground by the table with the man on it?
asked by lolcatz 
math
9.A 10%,100day note was dated 20 september 1992.the maturity value of the note was $3083.33.If the note was discounted on 17 november 1992 at 12%,FIND i) the maturity date of the note = 29 december 1992 ii)the face value of the note $3083.33 =
asked by fizz 
algebra
A machine launches a tennis ball directly upward at 64 feet per second from a platform that is 80 feet high. what is the maximum height of the tennis ball?
asked by Shannen Fajardo 
math(urgent)
A 7%,6O day note was discounted at 15 days before the maturity date. If the discount rate was 5.5% and the proceeds received were $ 997,77,find a)the amount of discount that was charged b)the discount date if maturity date of the note is 26 october 1991
asked by fizz 
science
A body with a mass of 10 kg is placed on a smooth surface. It is pulled by a spring balance and the acceleration is 5 m/s². What should the reading on the spring balance be?
asked by lolcatz 
social studies
is it true or false that president Johnson tried to stop china from becoming a communist country
asked by candy 
maths
An aircraft dropped a box of emergency supplies to a group of trampers. The height of the box above the ground, h, at time, t, is given by the formula: h = 520  5t^2 , where h is in metres and t is in seconds. Find how long it takes for the box to fall to
asked by Shane 
biology
suppose some natral disaster occured and a speices of finch is forced to relocate from its original island where it dined on cactus flowers to an adjacent island with many fewer cacti but an over abundance of orchids what would be the imediate consequences
asked by Anonymous 
Spanish 2
Rewrite the sentences in Spanish. Are my answers correct? Thanks! :) 1.) I used to eat. 2.) Clean!! 3.) You (informal) have seen the movie. 4.) I practiced yesterday. 5.) When I was young, I played soccer. My answers: 1.)Yo solía comer. 2.)Limpio!
asked by Fiona 
math
I don't understand how to multiply rational expressions. My math book isn't helping at all.
asked by emmy 
soc 313
ella miller and her family issues
asked by vivian 
algebra
4/6 = what over 15
asked by Bray 
math help
In trisngle RST, angle S is a right angle and csc R=5/3. T=What is tan T?
asked by cayce 
math help
In trisngle RST, angle S is a right angle and csc R=5/3. TWhat is tan T?
asked by cayce 
physics
Suppose an object is placed at a distance x from a screen and a converging lens of focal length f is placed between the object and the screen. What is the minimum separation distance x (in terms of f) for a real image to be formed on the screen? Support
asked by Josh 
algebra 1
Solve inequaity: 2x/7 8>9 Please need help, cant figure this one out,thank you kindly
asked by Myra 
math help
Which is equivalent to 14x3y+2z=100 17x+8y+10z=11 3+13y+29z=81
asked by Tommy 
Algebra
what is the magnitude of a vector with an initial point (2,6) and a terminal point (14,11)
asked by Todd 
physics
if a train travell at speed of 90km/hour. and when the break applied at 5m/sec2. how much it will travel before stoping
asked by chhaya 
Algebra 2
What is the magnitude of the vector with an initial point (2,1) and terminal point (13,9)? Answers7.9,12.7,17.0,23.0
asked by Austin 
geometry
A floor measures 10m by 5m is to be covered with flooring boards measuring 1m 20cm. How many flooring boards would be needed to cover this section.
asked by lindsay 
math
what is tan 3pi/4
asked by A 
Economics
Draw a diagram of welfare and subsidies?
asked by Hendrick 
English
What is a good way to start off a persuasive essay that involves injustice.
asked by Annadona 
chemistry
which of these reactions (a) or (b) is spontaneous? Explain why. write the half cell equations for the spontaneous reaction. Identify which element is oxidized and which is reduced. (a) Fe^0+Mg^+2 > Mg^0 + Fe^+2 (b) Fe^+2 + Mg^0 > Fe^0 + Mg^+2
asked by reneet 
Physics
2.0 kg weight is on simple, horizontally oscillation (in a spring) with the time 1.8 s. The distance between the outmost dots in the oscillation is 0.16 m. a) What is the angular speed (w) of the oscillation ? b) What is the force constant (k) of the
asked by Physics: Simple oscillation? 
Science
the ventricle in a singleloop circulatory system is responsible for A. receiving blood from the body. B. pumping blood out to the gills. C. pumping blood out to the body. D. receiving blood from the gills. I think it is A or C. Thank You.
asked by Cassie 
creative art
go and investigate or reseach a locar evafler
asked by lerato 
English
What punctuation is missing from the sentence below? I didn't bring Tom, my younger cat, or Anne, my young hamster I did bring Taylor, my parrot. A. Comma B. Apostrophe D. Hyphen C. Colon B?
asked by Anonymous 
Science
What is the force that results from a 3,000kg car accelerating at 20.00 m/s2? a;) 150.0 N b;) 3,000 N c;) 3,020 N d;) 60,000 N
asked by Jennifer 
Trig
A 24foot ladder is placed against a building. The building is perpendicular to the level ground so that the base of the ladder is 11 feet away from the base of the building. How far up the building, in feet, does the ladder reach? Round to nearest
asked by Joseph 
Chemistry
When 155 mL of water at 26 degrees Celsius is mixed with 75 mL of water at 95 degrees Celsius, what is the final temperature of the mixture? (d Water = 1.00 g/mL) Im really stuck on this problem and chemistry isnt exactly my strong point, thanks in
asked by David 
algebra 2
what is 7 1/5 written in radical notation
asked by ross 
Hamlet Check
Please check my answers 1. Claudius is going to write a letter to ________, to try and create peace: a. young Fortinbras b. King of France c. King of Denmark d. the bedridden Fortinbras My answer is D. 2. Hamlet waited between ______(time) for the ghost
asked by Scarlet 
Algebra 2
Find the exact value of cos 315 degrees. answers: 3/2, 1/2,2/2, 2/2
asked by Pam 
math
A man walked 1260meters on a bearing of 20degrees, how far south is he from his starting point ?
asked by jombo 
English
This is one proposal that will definitely anger some people: Everyone should have a pet. There should be a law that makes sure everyone will get a pet or give a legitimate reason why they cannot. There are almost infinite arguments to favor owning animals,
asked by Anonymous 
statistics
An IQ is designed so that the mean is 100 and the standard deviation is 23 for the population of Normal adults, find the sample size necessary to estimate the mean IQ score of statistics students Such that it can be said with 90% confidence that the sample
asked by joe 
Science
If a bowling ball hits a wall with a force of 6 N the wall exerts what force back on the bowling ball?
asked by steve 
Hamlet Check
Please check my answers 6. Hamlet awaits the appearance of the ghost on: a. the moor near the battle ground b. near Birnam Woods c. the ramparts of Elsinor Castle d. the cellar of the castle My answer B 7. Hamlet is denouncing the celebration that the King
asked by Scarlet 
MATH
The shape is an equilateral triangle. a)Does the shape have rotational symmetry? If so,identify the angle of rotation. b)Does the shape tessellate? I don't know what to do for the first part.But I think part B is yes because it has no overlaps or gaps.
asked by gwen 
Geometry
Karen makes pottery on a pottery wheel. Today she is making vases that are in the shape of a circular cylinder that is open at the top, that is, it has only one base. The base has a radius of 4.5 centimeters and 0.75 centimeters thick. The lateral surface
asked by Jake Monroe 
English
"The small number of comments against owning pets don't even need to be included" would be an example of: A. bias B. bandwagon C. faulty cause and effect D. either/or fallacy
asked by Anonymous 
Math
In triangle RST, angle S is a right and csc R=13/12. What is tan T? 13/5 12/13 12/5 5/12
asked by Austin 
English
How do you know if an editorial is based mainly on facts or on opinion?
asked by Anonymous 
Science
A person roller skates down a street heading West. What is true about friction in this case?
asked by steve 
math
Find the coordinates of the image of point R(3,5) rotated 180° about the origin. A)(3,5) B)(5,3) C)(5,3) D)(3,5) Please help me I think its A
asked by gwen 
English
What does this sentence mean? It was a rainy season which caused the river to be swollen.
asked by Annie 
math
What number can be removed from the following list of data so that the median will remain the same? 40, 28, 29, 32, 16, 40, 35 A. 28 B. 32 C. 35 D. 40
asked by jasmine 
algebra
The area of the rectangle below is 30 feet squared. What is the value of x to the nearest tenth of a foot? x+1=width x1=height
asked by jaay 
irsc
Complete the table to determine the balance A for $12,000 invested at rate r for t years, compounded continuously. (Round your answers to the nearest cent.) r = 1.5% find T11.2 T102.9 T208.4 T3024.3 T4070.4 T50203.9
asked by sam 
fdr
a rectangular fence is constructed that will enclose 100 ft sq of land. three sides will be built from fencing that costs 10 dollars per foot and the 4th side will be built from fencing that costs 23 dollars per foot. find the dimensions of the rectangular
asked by iqra 
MATH 1 QUESTION VERY HARD PLS HELP ASAP!!!!!
PLEASE HELP ASAP!!!!! i don't know! Explain how to write a function rule from the table below. Then write a function rule. x: 2 4 6 y: 1 0 –1 i know its so simple but im having so much trouble!!!:( pls help!
asked by zumai 
biology help
The cells in the retina that detect color and bright light are called _________ cells.
asked by April 
English
One other word for "corruption" would be: A. wickedness B. annoyance C. anger A?
asked by Anonymous 
Algebra 2
Which matrix equation is equivalent to 3x+2y5z=20 5x10y+8z=17 8+11y2z=29
asked by April 
biology Help
The fertilized egg undergoes cell divisions that form a ball of cells during (A)__________. During (B)__________, the endoderm, ectoderm, and mesoderm form. All the tissues of the adult body will come from these three germ layers. Differentiation is the
asked by Sandy 
language arts
200 years from now what will my neighborhood look like?
asked by joyce 
math
which figure has rotational symmetry? A)a square b)a letter T c)a pentagon d)an arrow Is it a (A)a square?
asked by gwen 
Algebra 2
Given A=( 3 2 5) ( 2 1 8) (4 7 3 )and c=(5 0 3), find B if A+B=C
asked by Cayce 
math
what is 3/7 3/11 and 1/11 from least to greatest
asked by courtney butcher 
algebra!!!
The area of a rectangle is 40 ft. squared . what is the value of x to the nearest tenth foot? x+2=height x+1=width
asked by jaay 
Asap please????
How many Jim Crow Laws were there?
asked by Kathlyn 
math
Use the binomialsl theorem to find the binomial binomialsion of the expression (x3)^5
asked by Kim 
MATH HELP ASAP
Please Help!! Louis is planning to mow a rectangular yard that is 20 feet longer than it wide. He wants to find its width if its area is 1125 square feet. Which equation models this problem? A. 20w2 = 1125 B. w2 + 20w = 1125 C. w2 – 20w = 1125 D. w + 20w
asked by Skye 
Science
Look at the table of radioactive isotypes below. Isotype Type of Decay Uranium238 Alpha Nickel63 Beta Iodine131 Beta Radium226 Alpha With the help of a periodic table, predict the element that forms in each case. I'm confused by this. Am I suppose to
asked by Ninan 
biology help
The fertilized egg undergoes cell divisions that form a ball of cells during (A)__________. During (B)__________, the endoderm, ectoderm, and mesoderm form. All the tissues of the adult body will come from these three germ layers. Differentiation is the
asked by Me 
algebra
110 students like the program. 120 students think the program is unnecessary. 210 students plan on running for student government next year. If a circle graph were made from the data, what is the measure of the central angle for the group that likes the
asked by Jenna 
math
Jesse collected data on the colors of the coats his classmates wore one day in February. He started a circle graph. Which equation will give the angle measure of the section for black?
asked by jerry 
math
in an image the slanted rectangle starts at 0 over right 2 spaces. Then 2 more over to 4 up to 3 then left 2 and back to 0.what would it look after a rotation of 90 degrees about 0. a)rectangle goes to the left in quadrant 2. b)rectangle goes down in the 4
asked by gwen 
MATH! PLEASE HELP
The stemandleaf plot shows the heights in centimeters of Teddy Bear sunflowers grown in two different types of soil. Soil A Soil B 5 9 5 2 1 1 6 3 9 5 1 0 7 0 2 3 6 7 8 2 1 8 3 0 9 Key 96 means 69 Key 58 means 58 a Describe the overlap of the two sets
asked by yolo 
Marketing
The owner of a small hardware storethe only one in a mediumsized town in the mountainshas just learned that a large home improvement chain plans to open a new store nearby. How difficult will it be for the owner to plan for this competitive threat?
asked by Rolle 
Science
What are some ways we directly and indirectly release carbon into the atmosphere?
asked by Anonymous 
marketing
A marketing manager is considering opportunities to export her firm's current consumer products to several different countries. She is interested in getting secondary data that may help her narrow down choices to countries that offer the best potential…
asked by Rolle 
Chemistry
Absolute zero is A. the temperature at which the motion of particles theoretically ceases. B. defined as 0°C. C. the triple point for water. D. all of the above A???
asked by Angela 
math
Indicate whether the following statement is true or false. If a figure can be translated, then it will tessellate. I say false am I right?
asked by K 
Statictics
In testing a new drug, researchers found that 20% of all patients using it would have a mild side effect. A random sample of 25 patients using the drug is selected. Find the mean and standard deviation of patients having a mild side effect.
asked by Netta 
chemistry
What pressure in kpa is exerted by 94.6 g CO2 at 57°C in 0.750 dm 3
asked by Anonymous 
Language Arts
9. Choose the type of punctuation that is missing from the following sentence. My best friends new dog wont stop barking. (1 point) (x)apostrophe ()semicolon ()colon ()hyphen 10. Cant you just see the look on his face when he finds out about the party. (1
asked by SebbyChan 
Human resources
Management literature generally assumes that supervisors should conduct job analyses because they are in the best position to know what their subordinates do. Does your supervisor really know what you do? What is it about his or her management style that
asked by Rolle 
language arts check
the poet uses all of the following in Annabel lee except? ANS: repetition
asked by me 
ECCE
Connectionist models provide evidence that a) infants begin life with specialpurpose knowledge systems. b)neural networks are initially weak, sufficient only to support looking behavior. C) connections between units change very little with age
asked by brit 
algebra
I have 8 cups of a juice drink consisdting of 25% oj and 75% apple juice. I want to make a mix with 40% oj. how many cups of oj must I add?
asked by Bob 
biology
Which type of reproduction is associated with using the most necessary resources (e.g., the most nutrients or most energy)?  binary fission  asexual reproduction  sexual reproduction  budding
asked by Anonymous 
Precal/trig
sina=3/5, pi/2
asked by Anonymous 
Algebra
The mean is 18.1 The zscore for 13.0 is  1.7. What is the standard deviation for this data set.
asked by Nicole 
algebra
Wat is the answer to page 211
asked by Anonymous 
Algebra
How much down is needed to get to 25000 at 8 percent interest compounded semianually for 3 .5 years
asked by Anonymous 
physics
Show that 480 W of power is expended by a weightlifter when lifting a 60kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.
asked by Peg 
physics
Why do the passengers in highaltitude jet planes feel the sensation of weight while passengers in the International Space Station do not?
asked by Peg 
Hamlet (check)
An impending war is evident because: a. Young Fortinbras wants revenge b. Denmark king wants his territory back c. Hamlet killed young Fortinbras and took over his land d. Numerous omens are evident i choose B, is that correct?
asked by Scarlet 
math
A bakery charges ten cents for a cookie that is 2 inches in diameter. If the price is proportional to the area, how much do they charge for an extra large cookie that is 8 inches in diameter? Assume that each cookie is shaped of a circle.
asked by Trinity 
maths
Write as powers of 2. (a) 16 (b) 2^m/8
asked by Shane 
language arts check
In the sentence "How could anyone get Elbures out of that orchestra of sound?" what does the orchestra refer to?  a musical group played at Immigration the Spanish pronunciation of Alvarez the name Elbures the American pronunciation of
asked by me 
maths
Write without negative indices: a^3b/c^1
asked by Shane 
English
This is one proposal that will definitely anger some people: Everyone should have a pet. There should be a law that makes sure everyone will get a pet or give a legitimate reason why they cannot. There are almost infinite arguments to favor owning animals,
asked by Anonymous 
physics
An object 3.60 cm tall is placed 13.1 cm in front of a mirror, which creates an upright image that is 5.21 cm in height. a) What is the magniﬁcation of the image? b) What is the radius of curvature of the mirror? Answer in units of cm
asked by Jp 
Science
If a bowling ball hits a wall with a force of 6 N the wall exerts what force back on the bowling ball? the choices are 0N 3N 6N 12N I think its 6N
asked by steve 
physicss
a point charge q, mass m is flying up at the speed v(0)= v 0 from the distance x(0)=L from a uniformly and positively charged thin plate, its linear density equal p. determine the maximum distance of a particle from the plate
asked by David 
algebra 2
What is the 20th term of the sequence that begins 3,6,12,24? A. 524,288 B 524,288 C. 1,572,864 d. 3,145,728 The term in a geometric sequence is 160. the 7th term is 40. What are the possible values of the 6th term of the sequence? You roll a standard,
asked by Multiple choice please help 
physics
two copper wires A and B are of the same length. If the diameter of A is 3 mm and its resistance is 3 ohms, what is the diameter of B if its resistance is 0.08 ohm ?
asked by yhojsgarcia 
English
Nearly infinite animals need homes. It would be very kind to get a dog or cat. What the author means in the fourth paragraph (above) is that pets : A. need good homes B. will give you all necessary attention C. teach us about receiving and giving love. D.
asked by Anonymous 
English
What's a good introduction on this topic? Should the Canadian healthcare system be privatized?
asked by Sam 
Science
A person roller skates down a street heading West. What is true about friction in this case? the choices are 1 does not effect the skates 2 pulls the skates eastward 3 pulls the skates downward toward the center of the earth 4 pulls the skates westward
asked by steve 
math
selling price of computer is $75 less than 2 times wholesale price. selling price of a tv is $550, what equation is used to find wholesale price of tv
asked by aaron 
Science
Which biome is found near the polar ice caps?
asked by Kyrstyn White 
chemistry
What is the pH of a 0.001 M solution of acetylsalicylic acid (aspirin) (Ka 3.0 x 104)?
asked by julie 
Physics
An object with mass 8.5kg is moving vertically upward with a velocity if 35m/s at a height of 100m above the ground. Find the time the object takes to reach the ground Thanks!!
asked by Meg 
math
Find the coordinates of the image of point R(3,5) rotated 180° about the origin. A)(3,5) B)(5,3) C)(5,3) D)(3,5) Please help me I think its A
asked by K why won't anybody help me 
English
What does it mean when someone is on the borderline?
asked by Anonymous 
English
I feel hungry. Let's eat out. Lunch is on me today. Really? Thank you. I know a fancy restaurant. Let's go there. After 10 minute's drive, we can get there. Good. What food do they serve there? The restaurant serves only seafood. Don't you like seafood
asked by rfvv 
Physics
2.0 kg rock in a 0.80 ling sting is swung vertically in circles. a) What does the speed of the rock to be so the string holds tight? b) what is the pulling force if the speed is 5.0 m/s?
asked by Physics: Motion? 
Please help w/ Algebra
A rectangular field has a perimeter of 56 rods. If a strip 2 rods wide is cut from all sides of the field, the remaining part of the field has an area of 91 rods. Find the dimensions of the field.
asked by Dave 
biology help
Frequent urination is associated with alcohol consumption because alcohol suppresses the hormone (A)__________. As a result, urine becomes more (B)__________, and the body loses more water than it should.
asked by April 
physics
Calculate the gravity on a planet using a pendulum that has a period of 2.45 s having a length of 1.25 m.
asked by Sam 
Chemistry
Silver forms a compound with nitrogen. In an experiment, 344.588 g of silver is placed in a reaction vessel with 15.906 of nitrogen. After the reaction is complete, all of the silver has been consumed, and there are 359.503 g of compound in the vessel.
asked by Tray 
Chem
Solution of NaCl and glucose gives freezing point of 0.95%. It contains 150 mOsmol glucose/L. What is the concentration of NaCl in milliosmoles/L and molarity? Thank you.
asked by Kane 
statitics
Certain data includes 36 body temperatures for which the sample mean is equal to 98.20 °F and standard deviation of 0.62 °F. Using this sample statistics, construct a 95% confidence interval of the mean body temperature. What does the sample suggest
asked by statitics 
Algebra
What is an equation of the parabola with vertex at the origin and focus (4,0) A. x=1/16y2 B. x=1/16y2 C. y=1/16x2 d. y=1/16x2
asked by kelly 
algebra1
Please Help me out if you know this... Simplify. x/7x+x^2 A. 1/7+x; Where x does not equal 7 B. 1/7x; Where x does not equal 0 C. 1/7+x; Where x does not equal 0,7 D. 1/7
asked by Jack 
English
1. She took care of the children while I was away. 2. She took care of the children as I was away. 3. She took care of the children when I was away.  Are they all the same in meaning? Which one is commonly used?
asked by rfvv 
Algebra 1Please, help me!
How am I supposed to graph the following functions? 1. A wholesaler is buying auto parts. He has $200 to spend. He receives 5 parts free with the order. The number of parts y he can buy, if the average price of the parts is x dollars, is y = 200/x + 5. a.
asked by Victoria 
chemistry
A sample of gas occupies 100ml at 27degree Celsius and 740mm pressure. The temperature the gas will have,when its volume is changed to 80ml at 740mm pressure is?
asked by Angel 
Algebra 1Please, help me!
Marie has a square piece of cloth. She needs another piece with a length 2 inches shorter than the side of the square piece and a width 2 inches longer. The area for the new piece of cloth is 780 in^2. What will be the dimensions of the new piece of cloth?
asked by Victoria 
English
1. While I was cooking, he cleaned the room. 2. While I cooked, he cleaned the room. 3. While I was cooking, he was cleaning the room.  Are they all grammatical? Which one is commonly used?
asked by rfvv 
English
Ponder about the parrot which shakes its head and sings when you walk through the door, bending its neck for the cozy touch of your fingers. Ponder about the cat that bends its back and moves on your shins as it makes a "meow" for dinner, and then gets
asked by Anonymous 
math
what integer represents a 500 dollar deposit
asked by brad 
English
How is it best to clarify "The small number of comments against owning pets don't even need to be included"? A. Not enough people can give legitimate reasons to not own pets. B. The majority of people favor pet ownership, so the writer does not mention
asked by Anonymous 
Physics
How long would the year be if the distince of the earth from the sun where 20% more?
asked by Physics: Law of gravity? 
Math
1,11,21,2111,111221,?,? what are the next two numbers of this sequence?
asked by Headache