Questions Asked on
May 3, 2016

Chemistry
To neutralize 8.3 4 ml of HCl 36.5% by mass and density = 1, 2 g/cm3, the required volume of 5 mol/L NaOH will be?
asked by Monica 
Quantitative Chemistry
Which of the following statements about the reaction, 4 HCl(aq) + MnO2(s) MnCl2(aq) + 2 H2O(l) + 2 Cl2(g), is correct? a.)The manganese atoms are oxidized. b.)The oxygen atoms are reduced. c.) The chlorine atoms are both oxidized and reduced. d.)All of
asked by Neil 
data analysis math
Question 1 Production Rates A manufacturing company wishes to find out whether the productivity of its workforce has increased now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past month. The hourly
asked by Tia 
Chemistry
what salt results from the neutralization of phosphoric acid with potassium hydroxide? would it be: 3NaOH + H3PO4 > Na3PO4 + 3H20 OR H3PO4 + sKOH > K3PO4 + 3 H2O
asked by Anonymous 
Data analysis
Question 1 Production Rates A manufacturing company wishes to find out whether the productivity of its workforce has increased now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past month. The hourly
asked by Tia 
Chemistry
what salt results from the neutralization of phosphoric acid with potassium hydroxide? would it be: 3NaOH + H3PO4 > Na3PO4 + 3H20 OR H3PO4 + sKOH > K3PO4 + 3 H2O
asked by Anonymous 
math
find the area of the cone cut from its vertices to make half of it with radius 14 cm and slant height 20 cm see the figure below
asked by kelvin 
Math
how can you use the distances between each data value and the mean of the data set to measure the spread of a data set?
asked by Mariannr 
math
tanya fills the prism 110 1/2 in3 of liquid what is the height of the liquid pls help me
asked by rya 
Algebra
How to solve this problem √363−3√27 Need step by step instructions. Thanks, Kaai97
asked by Kaai97 
Math
f(x) = tan x / sin x Find the vertical asymptote. Describe its behavior to the left and right of the vertical asymptote.
asked by David 
my brother is not learning
I have a brother who is 5 years old, he is going to UKG. I managed to teach him the alphabet and numbers, but I'm struggling to teach him letter sounds. He is obsessed with TV he will not come to study. I am a middle schooler by the way.
asked by Jay 
math
what percent of 200 liters is 3 liters
asked by Xavieria 
Science  Northern technical college
An electric train starting from rest is uniformly accelerated in a distance of 40m to a velocity of 10m/s, for this journey. (I).Calculate the time taken by the train. (II). The acceleration of the train.
asked by Lucky chembe 
math
if a minor league plays 123 games in a season won 15 more games than three times as many as they loss how many games did they win and lose
asked by Xavieria 
chemistry
How many electrons are in the highest energy orbital of the element copper? There is 1 in the outermost shell but what about the highest energy orbital?
asked by Anonymous 
Physics
A stone is dropped into a bore well 490m deep.after how time,the sound of splash of will be heard
asked by Praneeth 
Physics
A stone is dropped into a bore well 490m deep.after how time,the sound of splash of will be heard
asked by Plz help.me 
Math 202 Proportional Reasoning Need Help Plz!
a. Calculate the total cost of moving from your current location to your new location for each of the options.? Option A: Renting a moving truck and towing vehicle. 16 ft cube truck, iHaul fee $1.13/km, Fuel consumption rating 23.5 L/100 km, the customer
asked by Tala 
physics
A 10 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 100 N parallel to the incline, which makes an angle of 20 degrees with the horizontal. If the coefficient of kinetic friction is .40 and the crate is pulled a
asked by wency siatula 
Calculus
Approximate the change in the lateral surface area(excluding the area of the base) of a right circular cone fixed height of h = 6m when its radius decreases from r=9m to r=8.9m (S=(pi)r sqrt(r^2+h^2)).
asked by Jenna 
science
4 gm of N aOH are present in 0.1dm3 solution have specific gravity 1.038 gm/ml. calculate: a. Molality of N aOH solution; b. Molarity of N aOH solution.
asked by rohan 
Math
How do I solve for t with more than one t? 4.9t^2  28t
asked by Anonymous 
statistics
Through a mixup on the production line, 21 defective ovens were shipped out with 29 good ones. If 8 are selected at random, what is the probability that none of them are defective? need help ASAP
asked by qwenie 
Civics (Reed)(Check)
Please check to see if I have answered the following questions as best as possible. ReedI added more to #3. Will you check it for me please? 1. What information is being presented in the First Amendment of the U.S. Constitution? What facts are presented?
asked by Victoria 
Science
A uniform metal ball (mass m) is tied to the end of a string (massless, length L). The other end of the string is fixed. The ball is moving in a vertical circle centered at the fixed end of the string. Suppose the velocity of the ball at the lowest point
asked by Chan 
Chemistry
A kettle contains 2kg of water at 20 degree celsius. What mass of methane must be burned to raise this quantity of water to 100 degree celsius?
asked by Cliff. WEITELI 
math
If 2 circle are enclosed in a rectangle, then find the ratio of the total area of the rectangle to the total shaded area.
asked by Arick 
Nath
2:30 thermometer read 44 degrees Celsius. It risen 3 degrees between noon and 2:30 pm and 12 degrees between 7 am and noon. What was the temp at 7 am
asked by Carter 
Maths yr 6
If 5 people can paint a house in 4 hrs, how long will it take 3 people??
asked by Zeal 
Maths
If 5 people can paint a house in 4 hrs, how long will it take 3 people?? As per book answer is 6 hrs 40 mints But how????
asked by Zeal 
Science
1. Which of the following is the correct definition of minerals? A) A naturally occurring, inorganic solid that has a crystal shape and definite chemical composition. B) A naturally occurring, inorganic solid that forms through crystallization of melted
asked by Anonymous 
English
Identify a theme in Dragonwings analyze and explain how the author develops the theme over the course of the novel through the characters and plot be sure to use evidence from the beginning middle and end of the story to support your ideas.
asked by pllllllsssss heeellllppppp 
Science
Calculate the mass of silver deposited when a current of 2.6 A ls passed through a solution of silver salt for 70 minutes. (Ag=108; 1 faraday=96 500 c)
asked by Anonymous 
Chemistry
What is the empirical formula of benzene, C6H6? I know how to find empirical formula; as long as you know the moles, you can find the ratio and thus the empirical formula. But the question provides nothing and I can only find the Mr? The answer from the
asked by Winnie 
Art
1. Why would knowledge of mathematics be useful to an architect? A Help the architect to determine the best building site B Help the architect to determine the best building materials C Help the architect to determine measurements of building materials D
asked by Sam 
Analytic Geometry
simplify the given equation and graph xyx+y=0 (it is on rotation of axes. please answer in order for me to have a guide in my studies tonight)
asked by Earl John 
Science
A block and tackle consisting of 5 pulleys is used to lift a car engine weighing 850kg. What is the Velocity
asked by Hohenzollern 
math
Jack's credit card statement showed these items: Last Balance Payments Finance Rate New Charges $95.85 $45.00 1.5% $345.90 What is Jack's new balance?
asked by Dustin 
math 1324
a natural history museum borrowed $2,000,000 at simple annual interest to purchase new exhibits. Some of the money was borowed at 7%, some at 8.5%, and some at 9.5%. Use a system of linear equations to determine how much was borrowed at each rate if the
asked by Anonymous 
science
What influence does the density of methylated spirit have on the surface tension?
asked by Gontse 
calculus
A hot air balloon is rising vertically upward from the ground. The crew of a boat from a nearby lake notices this situation and looks upward at an angle of 10 degree to see the balloon. If the boat is 400meters away from the balloon, and the angle of
asked by rhakesh 
science
How does the law of conservation of matter apply to mixtures? The law of conservation of matter is a law that states matter cannot be created or destroyed. But how does that affect mixtures HELPPPPP
asked by student 
Math Please Help
The graph above shows the number of students receiving A's in each grade at Bridgeport Middle School. Which statement is true? A: The scale on the first graph does not distort the lengths of the bars. B: The second graph shows greater changes in the number
asked by #Blessed 
Physics
What is the final speed of an object and how far does it travel while accclerating if its initial speed is 10m/s and it accelerates at 8.9m/s squared for 5 s
asked by Allen 
Math
What would be the best chart or graph to display the number of pages 15 books have? Help!
asked by Help 
Analytic Geometry
Simplify the given equation and graph x^2xy+y^23=0 (please answer. Needed for my studies tonight. Thanks!) PS: i will really appreciate your response. :)
asked by Earis 
Analytic Geometry
Simplify the given equation and graph x^2xy+y^23=0 (please answer. Needed for my studies tonight. This is about rotation of axes. Thanks PS: i will really appreciate your response. :)
asked by Earis 
Social Studies (please check Ms. Sue)
Please check this. Thanks!!! 1. How did President John F. Kennedy most support civil rights? a. He favored voting rights laws.*** b. He organized a march. c. He established the Peace Corps. d. He rode "freedom buses." 2. Which of the following was a result
asked by SpitFireRedHead 
Dynamic
the mass of the moon (assumed spherical ) is 7.35×10^22 its diamter is 3480 km find the escape velocity from the moon G=6.67 × 10^11 n/m^2/kg^2
asked by Esraa 
ACCOUNTING
WHY SHOULD FINANCIAL STATEMENTS BE PREPARED IN ACCORDANCE TO THE IFRS
asked by Anonymous 
history
The biggest secret of rizal is?
asked by Anonymous 
Math
Kendal spent 1/3 of her money on an mp3 player. The next week, she earned 25 dollars from baby sitting and deposited it in her bank account. Her bank account is now at 115 dollars. How much did she start out with?
asked by Abbie 
Math
3. Which number line shows the approximate location of √56? (On number lines) 8 7.5 7 6.5
asked by A boy who just needs some homework help 
plz help physics
A proton is moving in vacuum along a straight path from A to B .It passes point A at the speed of 2000km/s. a)Calculate in J and in eV the kinetic energy of the proton at A. b)Calculate the value of the positive voltage U that should be applied between A
asked by vicky 
Maths
the length of a rectangle is 3 times its breadth,if the perimeter is 84 , find the length
asked by Ambrish 
geography/social studies
PLEASE HELP ME if you were an entrepreneur, which european country might be the best place to start your new business? explain your reasoning
asked by sara 
chemistry
If 17.5 mL of 0.553 M KOH is needed to neutralize 25.0 mL of an HBr solution what is the molarity od HBr solution
asked by rosie 
Physics
What is the mass of water in a closed room 5.2m x 6.3m x 2.5m when the temperature is 24 degrees celsius and the relative humidity is 65%?
asked by Antonia 
science
how many times do we blink per minite
asked by naomie 
science
15,000,000 blood cells are destroyed every second to make room for new blood cells how many blood are destroed every hour
asked by terence 
English
What does Annie's dialogue in the passage reveal about her character? A) she is proud and indifferent. B) she is sarcastic and cynical. C) she is timid and nervous. D) she is confident and persistent. Please help me. I've been stuck on this practice
asked by Milan 
Math
You read 50 pages in an hour. Your sister reads 40 pages in an hour. Explain how to find out how many more pages you read than your sister reads in 1212 hour?
asked by Iris 
Physics
Laser light of wavelength 550 nm falls upon a diffraction grating. The slits are 25 micrometers apart and each have a width of 2 micrometers. There is a screen 2 meters away from the diffraction grating, parallel to the grating. A) At what angle does the m
asked by Lexa 
MATH
Two cell phone companies have different rate plans. Runfast has monthly charges $25 plus $10 per gig of data. B A &D’s monthly charge is $18 plus 15 per gig of data. Your task is to determine under what circumstances each company has the better pricing.
asked by Tamara 
Special education setting
When tutoring learning challenge students in academic subject, you should A.make sure reading materialsome are slightly above their abilities so they will be challenged. B.spend long period of time on math drills. C.disregard development level D.help the
asked by Zenia Brent 
Science
The time it takes for a puck to travel from the blue line to the net (d = 18.3 m) if the puck has velocity of 40 m/s is __________ s. (Record your answer to the correct number of significant digits)
asked by HELP ASAP 
LA
There's good news and bad news about grizzly bears in the American West. The good news? Their numbers have been increasing in recent years. In 1975, grizzlies made the threatenedspecies list under the federal Endangered Species Act. The bad news? Some
asked by Filmore 
English
The future in South africa is bright
asked by Teboho 
Geometry/Trig
In triangle ABC, A is a right angle, and m b=45 degrees. What is the length of BC? If your answer is not an integer, leave it in simplest radical form. a. 16 ft b. 16 sq 2 ft c. 16 sq 3 ft d. 32 ft I'm really confused as to how to do this... Could someone
asked by Gina 
Math
What is the simplified form of the expression? (2 – 9c)(–8) A. –16 + 72c B. 16 + 72c C. –16 – 72c D. 16 – 72c HELP PLZ!!
asked by Martin1162 
Science
The time it takes for a puck to travel from the blue line to the net (d = 18.3 m) if the puck has velocity of 40 m/s is __________ s. (Record your answer to the correct number of significant digits)
asked by HELP ASAP 
Physics 2
A particle at the Large Hadron collider in CERN is moving at 0.99 c as it emerges from a collision event. A) If these particles live 2.0 microseconds on average when they are at rest, how long would you expect this particle to last in the reference frame
asked by Lexa 
Physics
The time it takes for a puck to travel from the blue line to the net (d = 18.3 m) if the puck has velocity of 40 m/s is __________ s. (Record your answer to the correct number of significant digits)
asked by Hanny 
english
How to write a speech about a mythical character and legendary hero
asked by Noluthando 
Math
Simplify the expression 6ab + 3ab  7ab. What is the coefficient of the simplified expression? A. a B. ab C. 2 D. b B
asked by Martin1162 
Physics
The target box is 2.44 m horizontally from the edge of the table. Bobby compresses the spring 1.42 cm, but the center of the marble falls 84.0 cm short of the center of the box. How far should Rhoda compress the spring to score a direct hit?
asked by Kevin 
kumar
The addition of a catalyst during a chemial reaction alters which of the following quantities?
asked by pawan 
Physics
A small metal ball with a mass of m = 78.9 g is attached to a string of length l = 1.76 m. It is held at an angle of = 44.5° with respect to the vertical. The ball is then released. When the rope is vertical, the ball collides headon and perfectly
asked by Kevin 
Physics
A fan pushes a beach ball with a force of 10.0 N. If the work done on the ball is 150 J, the distance the ball will travel is ______ m. (Record your answer to the correct number of significant digits)
asked by Hanny 
Physics
A bullet (m = 0.0250 kg) is fired with a speed of 94.00 m/s and hits a block (M = 2.20 kg) supported by two light strings as shown, stopping quickly. Find the height to which the block rises. Find the angle (in degrees) through which the block rises, if
asked by Kevin 
Science
A fan pushes a beach ball with a force of 10.0 N. If the work done on the ball is 150 J, the distance the ball will travel is ______ m. (Record your answer to the correct number of significant digits)
asked by Hanny 
Physics
Use the following information to calculate the speed of a ball in a pinball machine at a specific location. The ball is launched by using a spring (k = 700 N/m) compressed by 8.5 cm. Consider the starting position of the ball to be its location when the
asked by Kevin 
english
Media influence to youth/teenagers
asked by nonsikelelo 
Physics
By how much will a 1.52 kg object stretch a spring that is suspended vertically if the spring constant is 135 N/m? The object is pulled straight down by an additional distance of 25.4 cm and released from rest. Find the speed with which the object passes
asked by Kevin 
Algebra II
What is the sum of the geometric series 12 E 2(1/2)^x x=0 4 0 2 3 PLEASE HELP Urgent
asked by Nad 
Physics
Consider an archery bow as behaving like a spring with a spring constant of 493 N/m. If an archer pulls the bowstring back for a distance of 42 cm, what is the elastic potential energy of the "loaded" bow? If the mass of the arrow is 39 grams, what is its
asked by Kevin 
Physics
A point mass m = 115 g hangs from a string of length l = 1.07 m. Calculate the value of v, the initial speed m should be given at the bottom, so that the string reaches a maximum angle of = 31.4°?
asked by Dan 
Physics
A 3.1 kg pendulum bob hangs from a 2 meter string. It is pulled to the side, position A, so that the bob is 98 cm (h on the sketch) above the lowest position, position C. The bob is released and begins to swing. What is its potential energy after it has
asked by Dan 
math
Cynthia has a bag of jellybeans. There are two red jellybeans, one yellow jellybean, and two black jellybeans in her bag. Cynthia grabs two jellybeans and gives them to her friend, Pedro, and he eats them. What is the probability that she gives him two red
asked by joshua 
Physics
A bead of mass m = 41.5 kg is released from point A which is located 5 m above the ground and slides on the frictionless track as shown in the figure. Determine the beads speed when it reaches point C which is located 2.0 m above the ground
asked by Dan 
plz help physics!!!!
A proton is moving in vacuum along a straight path from A to B .It passes point A at the speed of 2000km/s. a)Calculate in J and in eV the kinetic energy of the proton at A. b)Calculate the value of the positive voltage U that should be applied between A
asked by vicky 
Physics
A fan pushes a beach ball with a force of 10.0 N. If the work done on the ball is 150 J, the distance the ball will travel is ______ m. (Record your answer to the correct number of significant digits)
asked by Hanny 
Math
(14  2)2 ÷ 2 A. 30 B. 360 C. 72 D. 60
asked by Martin1162 
Physics
A pitcher throws a fast ball with a speed of 45m/s. The ball has a mass of 0.145kg. How much a) kinetic energy is given to the ball and b)What work was done in throwing the ball? Vo=45 m/s Mass= 0.145kg A) KE? KE= 1/2mV^2 A) 1.5x10^2 kg*m/s B) WK=Change in
asked by Rosie 
Math
There is an expression some people use that says, “What you put into it is what you get out of it.” People might use this expression to describe your skills at a sport or activity and how that relates to the amount of time and effort you spend
asked by Origami_Intermediate 
Geometry
One leg of an isosceles right triangle is 14cm long. Find the length of the hypotenuse. C^2=a^2+b^2 C^2=14^2+14^2 392=14^2+14^2? What do I write? Because 14 square root 2 doesn't make sense.
asked by Kt 
Math
A square field has an area of 479 ft2. What is the approximate length of a side of the field? Give your answer to the nearest foot. A. 240 B. 23 C. 22 D. 21
asked by Martin1162 
Algebra
How to solve this problem √363−3√27 Need step by step instructions. Thanks, Kaai97
asked by Kaai97 
Math
Which ordered pair is a solution of the equation y = 3x? A. (–2, –9) B. (–8, –18) C. (–8, –3) D. (–10, –30)
asked by Martin1162 
Economics
A monopoly firm faces a demand curve given by the following equation: P = $500 − 10Q, where Q equals quantity sold per day. Its marginal cost curve is MC = $100 per day. Assume that the firm faces no fixed cost. You may wish to arrive at the answers
asked by Bob 
Science
A child uses 168 J of work pulling a wagon 25 m up a hill. What is the force exerted on the wagon by the child? (Record your answer to the correct number of significant digits)
asked by Hanny 
Physics
A child uses 168 J of work pulling a wagon 25 m up a hill. What is the force exerted on the wagon by the child? (Record your answer to the correct number of significant digits)
asked by Hanny 
Economics
What are welfare payments or consumer subsidies
asked by Thamsanqa 
life orientation
1.a right to life 2.a right to access education 3.a right to be heard I chosen them because they are likely to happen in our community.and so far those rights are violated but it seems like nobody takes them to consideration. children quit school
asked by Anonymous 
science
Tom is markina locations of active volcanoes on a world map explain how the locations of the volcanoes are related to Earth's plates
asked by kyle 
tourism
write a bibliography to acknowledge all the sources you used in violation
asked by a 
Algebra
Can someone explain how you get 86i out of (3i)^2
asked by Kt 
trigonometry
a ferris wheel is 50 meters in diameter with the bottom of the wheel 1 meter off the ground it makes a full revolution in 12 minutes. What function would track the height above the ground for a point that is at the bottom of the wheel when it starts
asked by Anonymous 
A.P
The sum of 16th term is 240,the sum of the next four terms is 220.Find the first term and the common difference.
asked by Whake 
Chemistry
Calculate value of Ksp for Ca(OH)2 (ΔG∘f(Ca2+)=553.6 kJmol−1 , ΔG∘f(OH−)=157.2 kJmol−1 , ΔG∘f(Ca(OH)2)=898.5 kJmol−1 ).
asked by Ayaka 
Calculus 3
I need help writing the series 4 + 1/5 + .3 + 1/(3 + sqrt 2) + 1/(9+ sqrt 3) + 1/(27 + sqrt 4) + 1/(81 + sqrt 5 .... I have played with using irrational numbers, natural log and a vast variety of exponential arrangements. Any help to get me going in the
asked by Sheila 
math
How do you differentiate between mutually exclusive and independent events? Please explain with examples. And why cant they happen together?
asked by urgent help please 
History
Which of the following nations did the U.S. invade in 1989 after its leader was indicted (in the U.S.) for drug trafficking and had ordered the overturning of the results of his nation's free elections? A. Nicaragua B. Panama C. Iraq D. Grenada I thank D
asked by Sid.V 
History
To all southerns except Confederate leaders, Lincoln offered 1. Amnesty 2. Reconstruction 3. Freedom 4. The ten percent plan***
asked by Dylan 
Physics
Kati observes a force of 15 Newtons stretch a spring a distance of 0.450m. a) what is the elasticity coefficient of the spring and b) how much force must be done to stretch the spring a distance of 0.750m? a) F=Kx 15=K(0.450) 15/0.450=k 33N=k It seems off
asked by Rosie 
Osizweni High School. doing Maths and science
In the case of considering the effect of intermolecular forces(IMF) on liquids. What is the difference between monograde and multigrade oil?
asked by Zinhle ngwenya 
history
how does novikov describe the united states ?what evidence does he use to support his description
asked by cyn 
Algebra
10. Solve each radical expression. Check your solution. 1=√(2v3) 11. Solve each radical expression. Check your solution. √(n+5)= √(5n11) 12. Tell which solutions, if any, are extraneous for each question. √(12n)=n; n= 4,n=3
asked by Anonymous 
Language Arts
From the story from Joe Magarac, Man of Steel 10. Why do the people in the crowd mimic and mock the man from Johnstown in Selection 2? A.He acts as if he has won the contest, but he cant move the weight at all B. He bows at the crowd in the hope that Mary
asked by Summer 
Physics
During a free kick at a soccer playoff game a 0.5 kg ball at the peak of the kick 14.7 m above the field had a kinetic energy of 34.0 J. How fast was the ball booted by the player on the field?
asked by Dan 
Math
Lucia is hoping that Angela will buy her a geometrically interesting piece of land on which he will build a mansion. Lucia has said that she will only buy the land if it costs less than $4.00 per square foot. The plot shown below is listed for $453,175. Is
asked by Tim 
For Connections Cheaters
If you want to cheat, just go to openstudy.com and cheat away! Here, however, your posts will be deleted and you will be banned.
asked by Writeacher 
Science
If a ball A moves at X speed eastwards collideds with a stationary ball B. Ball A now moves at Y speed north east (40 degrees upwards from eastward direction) and ball B moves at W speed south east (50 degrees downwards from eastward direction). To
asked by Loli 
mathematics
evng .my teacher gave me this as a homework but i dnt undertand. 1.In a GP the 3rd term is equal to four times the first term and the sixth term is equal to three times the fourth term plus 32. Determine the sequence.
asked by patricia 
urgent math
1. Simplify the expression 7^9/7^3 a.7^3*** b.7^6 c.7^12 d.1^6 2. Simplify the expression z^8/z^12 a.z^20 b.z^4 c.1/z^4 d.1/z^4 3. Simplify the expression (3^4)/(3^4 a.(3)^1 b.0 c.1 d.(3)^8 4.Which expressions can be rewritten as 1 over the base
asked by Connexus 
mathematics
6. In a GP the 3rd term is equal to four times the first term and the sixth term is equal to three times the fourth term plus 32. Determine the sequence.
asked by patricia 
Language Arts
From the story from Joe Magarac, Man of Steel 10. Why do the people in the crowd mimic and mock the man from Johnstown in Selection 2? A.He acts as if he has won the contest, but he cant move the weight at all B. He bows at the crowd in the hope that Mary
asked by Connexus student help 
math
Due to inflation there were two demand increases. After the second increase the price for a certain item became twice as big as the original. By what percent was the first increase, if the second increase was 25%? can you solve this fast
asked by Anonymous 
math
During last year the number of students in RSM increased by 100%. This year, the number of students increased by 150%. What percent of the number of students now was the number of students two years ago?
asked by Anonymous 
math
The number a exceeds the number b by 50 percent. By what percent is the number b smaller than the number a?
asked by Anonymous 
math
Stock worth $60 a share dropped in value by 20% on Monday, then, again by $10 the next Tuesday and, finally, increased by 55% the following Friday. What was the final price of a share?
asked by Anonymous 
Calculus
Use the trapezoidal rule with n = 5 to approximate. Keep at least 2 decimal places accuracy. Integrate: (cos(x))/(x) from x=1 to 5
asked by Jack 
Calculus
Use Simpson's rule with n = 4 to approximate. Keep at least 2 decimal places accuracy. Integrate: (cos(x))/(x) x=1 to 5
asked by Dave 
Chemistry
(Ammonium) NH^3 is classified as what technically? its not just an acid or a base is it? So would it be either depending on the circumstances?
asked by Jeremiah 
ALGEBRA
YOU SAVE £25 PER WEEK (W) FOR A HOLIDAY.WHICH ALGEBRA EXPRESSION IS CORRECT? 25W 25+W 25W 25/W
asked by lORRAINE 
Chemistry
Please check my work: What is the pOH of a solution containing [H+] = 1x1011 M? log H=1411 3 right
asked by Jeremiah 
English
The Importance of Being Earnest by Oscar Wilde. From Act I, Scene 1. how are the characters jack and algernon developed through the use of dialogue? how are these characters similar? how are they different? support your answer with evidence.
asked by Alexia Smith 
Chemistryish
What is the pH of a solution that has a OH concentration equal to 1x105M? 14x 145=9 can I use that simple of math 9?
asked by Jeremiah 
ALGEBRA
CHLOE HAS A BIRTHDAY PARTY.THE VILLAGE HALL COSTS £20 PER HOUR (H). THERE IS ALSO A STANDING CHARGE OF £12. WRITE THIS AS AN EXPRESSION IN ALGEBRA?
asked by lORRAINE 
LA
There's good news and bad news about grizzly bears in the American West. The good news? Their numbers have been increasing in recent years. In 1975, grizzlies made the threatenedspecies list under the federal Endangered Species Act. The bad news? Some
asked by Filmore 
ALGEBRA
JENNY GETS A TAXI TO HER HOUSE. THE TAXI FIRM CHARGES A £2 STANDING CHARGE AND THEN £3 PER MILE (M). WRITE THIS AS AN ALGEBRA EXPRESSION?
asked by lORRAINE 
Algebra
When will 9th grade students know for sure if they have to pass Keystones to graduate?
asked by Bri 
Statistics
An unprepared student is about to take his first test of the semester. He is told that his test will be composed of 20 multiple choice questions, each with 4 possible answers, only one of which is correct. a.What is the probability that the unprepared
asked by Sam 
math
How many “words” can be formed using the letters of the word ARRANGEMENT?
asked by Anonymous 
Maths
Now suppose that the weight attached to the spring is pulled down a further 5cm from its equilibrium positions and released from rest. Show that newtons second law leads to the dynamic equation (in SI units) d^2z/dt^2 + 36z  g = 0 where z(t) measures the
asked by Lisa 
Social Studies
After the fall of communism, which type of economy was implemented in Russia? command market** socialist market free market mixed market
asked by lifeisgreat 
physics
a bullet is fire in a horizontal direction with a muzzle velocity of 300m/s in the absence of air resistance, how far will it have dropped in travely a horizontal distance of(a)20m?(b)40m?(c)60m? how far will it drop in one second
asked by johnson 
Math
There is a school of 1,200 pupils. 3/5 of them are girls. A. What fractions are boys? B. How many pupils are girls? C. How many pupils are boys? I have no idea how to solve this. If someone could give me a method it would be really helpful
asked by Anonymous 
Chemistry
Iron and oxygen gas can react to form the magnetic oxide of iron Fe3O4. How many grams of Fe3O4 can be made from 42.3 g of Fe?
asked by Jenny 
Language arts, please help!
A Surprising Point of View: A Television Play in Two Acts Characters: (in order of appearance) 1. JASON: a boy of about 14. He is a student in Ms. Smith’s English class. He regularly misbehaves in order to get attention, and he doesn’t apply himself to
asked by Chloe 
Math
If Katrina rolled a standard die 57 times during one of her math stations. How many times could Katrina predict rlling a 2 or a 6?
asked by Takoda 
maths
A town y is 200km from town x in a direction 040 degree.How far is Y east of x
asked by Christabel 
Physics
Consider an archery bow as behaving like a spring with a spring constant of 493 N/m. If an archer pulls the bowstring back for a distance of 42 cm, what is the elastic potential energy of the "loaded" bow? If the mass of the arrow is 39 grams, what is its
asked by Kevin 
math
Brandon is making a model plane at a 1:36 scale. If the length of the actual plane is 60 feet, how many inches long should he make his model?
asked by lid 
halflife
the half life of isotope X is 2.0 years how many years would it take for 4.0 mg sample of X to decay and have .50 mg of it remain?
asked by vanessa 
Chemistry
To neutralize 8.34 ml of HCl 36.5% by mass and density = 1, 2 g/cm3, the required volume of 5 mol/L NaOH will be?
asked by Monica 
Physics
An organ pipe that is open a t both ends has a fundamental frequency of 382 Hz. What is the length of an closed end pipe that has a fundamental frequency exactly one octave higher? Report your answer in m.
asked by Noah 
Physics
Two children are playing a game in which they try to hit a small box on the floor with a marble fired from a springloaded gun that is mounted on a table. (Image included with problem) The target box is 2.44 m horizontally from the edge of the table. Bobby
asked by Kevin 
Physics Please Help!
A small metal ball with a mass of m = 78.9 g is attached to a string of length l = 1.76 m. It is held at an angle of = 44.5° with respect to the vertical. The ball is then released. When the rope is vertical, the ball collides headon and perfectly
asked by Kevin 
math
Ashley is having a pizza party she invited 11 friends. She has 1 3/4 of a pizza. How much pizza will each friend get?
asked by angel 
science
A small fish in the Pacific Ocean watches a shark swim by a large rock a few meters away. Which of the following is the the reference point in this scenario? A. Shark B. Large rock C. Water D. Pacific Ocean Is the answer C?
asked by Larry 
Math  Trig
if the diameter of a tire is 3.5 m and makes one rotation every 5 seconds, how far does the tire rotates in one minute?
asked by Jen 
Math Trig
Determine the exact value if cot(3pi/4) using special triangles. I don't understand how it could be 1/tan3pi/4 in a triangle....
asked by Jen 
language arts
The passage is The Miracle Worker by William Gibson. Kate. Miss Annie. Annie. No. Kate (a pause). It’s a very special day. Annie (grimly). It will be, when I give in to that. [She tries to disengage HELEN’S hand; KATE lays hers on ANNIE’S.] Kate.
asked by megan 
math
By what percent will a fraction decrease if its numerator is decreased by 50% and its denominator is decreased by 25%? plz solve fast! needed by 6:30pm
asked by Anonymous 
Math
Consider the distribution of mathematics SAT scores of students in honors calculus at a liberal arts college. What would you expect the shape and variation of the distribution to be? A. Symmetric with little variation B. Symmetric with large variation C.
asked by angela 
math
A guy wire (a tensioned cable designed to add stability to a freestanding structure) is attached to a telephone pole whose height is 25 ft. If the wire is attached to the ground at a point 15 ft away from the base of the pole, what is the slope of the
asked by Anonymous 
forces and motion
Which of the following pairs of objects would have the strongest gravitational pull? two buildings in the same city ← two tall buildings in different cities two stars very far away from each other two stars very close to each other
asked by Larry 
Algebra
1. Find the general rule for each arithmetic or geometric sequence. 2. Calculate the 10th term for each sequence. a) a=a sub n1*n a sub one=9 b) a sub n=a sub n1 + 8 a sub 1=17 c) a sub n=a sub n1 + 2 a sub 1=9 d) a=n*a sub n1 a sub one=1 I don't
asked by John Brown 
Math
The following data set is the GPAs of the students in a statistics class. 1.93, 1.99, 2.00, 2.04, 2.12, 2.34, 2.55, 2.55, 2.75, 2.75, 2.80, 2.80, 2.85, 3.02, 3.12, 3.22, 3.31, 3.33, 3.45, 3.69 What percentile is a GPA of 2.34? A. About the 6th B. About the
asked by angela 
language arts
1. What is the prepositional phrase in the sentence: The family drove to the store. a. the family drove b. drove to the store c. the family d. to the store *** 2. What is the appositive phrase in this sentence: My mother, Rebecca, loves to eat pumpkin pie.
asked by Lulu 
algebra PLEASE HELP ASAP
Jennifer writes the letters MONTANA on cards and then places the cards in a hat. What is the probability of picking an M? a. 1/6 b. 1/7 c.6/1 d.7/1 my answer is b?
asked by Anon 
Chemistry
How many ethane will be burnt to produce 0.1moles of steam.
asked by Gravity 
Math
The width of a rectangle is 3 units less than the length. If the area is 70 square units, then find the dimensions of the rectangle.
asked by Ellie 
math
Consider the distribution of heights of all the players in the National Basketball Association. What would you expect the shape of the distribution to be? A. Skewed right B. Skewed left C. Symmetric D. Multipeaked Answer : A
asked by angela 
Algebra PLEASE HELP ASAP
1.Justin writes the letters ILLINOIS on cards and then places the card in a hat. What are the odds in favor of picking an I? a. 5:3 b. 3:5 c. 3:7 d. 1:2 my answer is b? 2. Justin writes the letters ILLINOIS on cards and then places the cards
asked by Anon 
math
estimate the area of the circle to the nearest unit (in the middle of the circle there a dot with a line through the sides and says 46 cm
asked by Larry 
Mathematics
estimate the sume of 382+744 answer 1100
asked by Anonymous 
Math
Solve the system of equations algebraically. Show all of your steps. Y=x^2+2x y=3x+20
asked by Subhanhassan 
Maths
Generate the sequence: 1,3,5,4,10,7,15,8,20,9,18,24,31,14,28,22,42,33,35,46......
asked by TRYSYENS 
Math
The federal government requires a car manufacturer to have a minimum miles per gallon (mpg) average over the models it makes. Suppose that the mpg’s for the five models of a manufacturer are 19, 21, 22, 28, and 18, and the government requirement is 27
asked by angela 
algebra PLEASE HELP ASAP
1. A bag contains 9 green marbles and 11 white marbles. You select a marble at random. What are the odds in favor of you picking a green marble? a. 9:20 b. 2:9 c. 11:9 d.9:11 my answer is d? 2. A bag contains 5 green marbles, 8 red marbles, 11 orange
asked by Anon 
Math
Consider the distribution of mathematics SAT scores of students in honors calculus at a liberal arts college. What would you expect the shape and variation of the distribution to be? A. Symmetric with little variation B. Symmetric with large variation C.
asked by angela 
Math
Solve the system of equations algebraically . show all your steps. Y=x^2+2x Y=3x+20
asked by Subhanhassan 
Biology
What percentage of animals on earth are vertibrates? 5% 25% 50% 95%
asked by Lala 
algebra PLEASE HELP ASAP
1. the probability of a basketball player hitting a foul shot is 1/3. how many shots would you expect her to make in 90 attempts. a. 30 b. 60 c. 3 d. 45 my answer is b? 2. simplify 8P3. a. 42 b. 336 c. 40,432 d. 56 my answer is d? 3. how many ways can 4
asked by Anon 
math
The roof of a factory rises vertically 6ft through a horizontal run of 27 ft. What is the pitch of the roof?
asked by Anonymous 
math
The roof of a home rises vertically a distance of 8 ft through a horizontal distance of 12 ft. Find the pitch (slope) of the roof plz help ASAP
asked by Anonymous 
Biology
Which of the following animals are considered hominiods? Select all that apply. gibbons Old World Monkey orangutans tarsiers
asked by Lala 
business
what do you think about the use of offshoring by MNEs? Is it a threat to jobs in the U.S.? Has it benefited MNEs and other countries more than the U.S.?
asked by vi 
Math
hello, write a quadratic equation in the form y=ax^2+bx+c, where a,b,c are all integers and the graph opens downward, whose roots are 3 and 6 steps in order to do this?
asked by Hi 
Please help
what is the sum of arithmetic series 2+5+8+...+260?
asked by Jay 
Maths ple
what is the coefficient of a^9b^8 in the expansion of (a+b)^17
asked by Steve 
maths
What is the Linear Taylor polynomial aout (pi/3) for the function f(x)=sin(x)?
asked by Steve 
math help me asap
whats 12! divide by (4!8!) i don't know the answer please help
asked by Anon 
Maths Please help
What is the quadratic Taylor polynomial about 2 for the function f(x)=square root x1?
asked by Steve 
Geometry (check my work)
A scoop of ice cream shape like a sphere with a diameter of 6 cm is placed on an ice cream cone the has a diameter of 5 cm and a height of 9 cm, show that the cone is or is not big enough to hold all of the ice cream when it melts ? Answer I said the cone
asked by Sue 
English
What makes Anne Frank a complex person? I am writing an essay about Anne Frank and that is a question I had in mind.
asked by Twenty One Pilots fan 
Chemistry
If 455ml of 6.0 M HNO3 is used to make a 2.5 L dilution,what is the molarity of the dilution?
asked by Caleb 
maths
what is the coefficient of (x+2)^3 in the cubic taylor polynomial about 2 for the function f(x)= e^x?
asked by Steve 
algebra PLEASE HELP ASAP
Please show me all the steps to solving the problem also you can use comment field to explain the work QUESTION: a box contains 95 pink rubber bands and 90 brown rubber bands. you select a rubber band at random from the box. find each probability. write
asked by Anon 
algebra PLEASE HELP ASAP
please show me the steps that you use to solve the problem. you can also use the comment field to explain the work. QUESTION: 1. what is the probability of selecting a red marble, replacing it, and then selecting a blue marble? show work 2. what is the
asked by Anon 
math
The current in a stream moves at a speed of 4 mph. A boat travels 24 mi upstream and 24 mi downstream in a total time of 14 hrs. What is the speed of the boat in still water?
asked by lauren 
Math
A cannon ball is shot out of a cannon buried 2m in the ground. The height of the cannonball can be approximated by the equation h=5t^2+35t2 where is the height of the cannonball in meters and t is the time in seconds. a)how long will it take the
asked by Math Man 
math
Grade 5 will plant 1/3 of the whole school garden. So far, they have planted ¼ of the whole school garden. What fraction of the school garden still needs to be planted by grade 5?
asked by Drequan 
math
how do you do 234.5 x 567.9
asked by sckid30 
business
a friend of yours stated: "I would never want to be dependent on an alliance. I prefer an acquisition so that everything would be under my control." How would you respond?
asked by business 
science
If oxygen have 8 protons and 5 electrons is it stable
asked by Anonymous 
geography
how does pumice ejected from a volcano affect the physical environment
asked by QAWSEDTFZXCVBGTGHNMJIIZK< 
Algebra PLEASE PLEASE HELP ASAP
1.Justin writes the letters ILLINOIS on cards and then places the card in a hat. What are the odds in favor of picking an I? a. 5:3 b. 3:5 c. 3:7 d. 1:2 my answer is b? 2. Justin writes the letters ILLINOIS on cards and then places the cards
asked by Anon 
PLEASE HELP WITH ALGEBRA
Please show me all the steps to solving the problem also you can use comment field to explain the work QUESTION: a box contains 95 pink rubber bands and 90 brown rubber bands. you select a rubber band at random from the box. find each probability. write
asked by Anon 
Math
In square ABCD, E is the midpoint of Iine BC, and F is the midpoint of line CD. Let G be the intersection of line AE and line BF. Prove that DG = AB
asked by Uniqua 
Math
The pizza slices served at Connors pizza palace are1/4 off a whole pizza. There are 3 pizzaso ready to be served.14 children come in for lunch is there enough pizza for every child?
asked by Ramon 
Math
The function f(x) = 3x+7 represents the cost to rent x movies each month from Netflix. Alex has $15 now. How many more dollars does he need to rent 9 movies next month?
asked by Koki 
Math
The function f(x)= 3^x was replaced with f(x)+k resulting in the function graphed to the right. What is the value of k?
asked by Koki 
math
The eight bills in Mike's pocket are worth less than $30 what possible12 combinations could he have only using ten dollars $5 and $1 bills
asked by Naima 
PLEASE HELP ASAP
1.Justin writes the letters ILLINOIS on cards and then places the card in a hat. What are the odds in favor of picking an I? a. 5:3 b. 3:5 c. 3:7 d. 1:2 my answer is b? 2. Justin writes the letters ILLINOIS on cards and then places the cards
asked by Anon 
math
. At a concert, 20% of the audience members were teenagers. If the number of teenagers at the concert was 360, what was the total number of audience members?
asked by may 
PLEASE HELP ASAP ALGEBRA
A spinner is divided into 10 equal sections numbered from 0 to 10. you spin the spinner once. what is P ( divisible by 3)? a. 1/3 b. 1/2 c. 2/5 d. 3/10 my answer is d, is that correct?
asked by Anon 
math
A company paid $48 for 2 cases of printer paper. Each case contained 12 packages of paper. Next month the company’s office manager needs to order 180 packages of the same paper. If the price per package does not change, what would be the total cost of
asked by may 
Math
Find the surface area of the prism. Rectangular Prism L=13 m W=6 m H=5 m A) 48m B)346m**** C)780m D)195m Please help!
asked by Sally 
Math
Determine whether the statement is true or false. Explain. "The median divides the box of a boxandwhisker plot in half." I think it is true but I can't think of an explanation.
asked by Helen 
geometry
in an isosceles trapezoid, ABCD, AD congruent BC. diagonal AC bisects angle DAB. if the measure of angle CAB = 15, find: the measure of angle b, measure of angle BCA, measure of ACD, and the measure of angle D
asked by kyle 
Math
Gym1 has $40 fee + $10 towel fee + $25 per month. Gym2 has $50 fee + $15 per month + $10 Zumba class per month  solve by elimination or by graphing when do the two gyms cost the same? 40 + 10 + 25m 50 + 15m not sure what to do with the 10m as this wont
asked by debbala 
Math
Zoe can feed six horses in one hour. Matt takes three times as long to feed that many horses. How long will it take them together to feed 32 horses? a) 2 hours b) 3 hours c) 4 hours d) 6 hours
asked by Meg 
Statistics
You Buy a lottery ticket to a lottery that cost $10 per ticket. There only 100 tickets available to be sold in the lottery. In this lottery there are one $500 prizes, two $100 prizes and four $25 prices. Find your expected gain or loss. Do you still want
asked by Javier 
Algebra
The Blackbird Oil Company is considering the purchase of 20new jumbo oil storage tanks. The standard model holds 12,000 gallons. Its dimensions are 4/5 the size of the similarly shaped jumbo model, that is, the ratio of the dimensions is 4:5
asked by Carmen 
Statistics
You buy a lottery ticket to a lottery that cost $10 per ticket. There are only 100 tickets available to be sold in this lottery. In this lottery there are one $500 prize, two $100 prizes, and four $25 prizes. Find your expected gain or loss. Do you still
asked by Javier 
Algebra
a painter leans a 25 foot ladder against a building. The distance from the ground to the top of the ladder is 17 feet more than the distance from the building to the base of the ladder. Find the distance from the building to the base of the ladder and the
asked by Mike 
chemistry
A standard addition method is used to determine the concentration of ethanol in an unknown sample. Six 10 mL aliquots of the unknown are drawn from the processing vat. An aqueous solution of ethanol is standardized to have 1.57 g/L. This standard is
asked by meeny 
algebra
ranslate into a variable expression. Then simplify. (Use x to represent the number.) a number decreased by the total of the number and eighteen
asked by Phuong 
algebra 2
4x+5y=11 2x+6y=16 solve algebraically
asked by vanessa 
Trig
find the equation for the cosine function that has an amplitude of 3/5, a period of 3pi/2 and a yintercept of 5.
asked by Jon 
Chavan
How many optically active isomers are possible for C5H11Cl
asked by Trupti 
MATH HELP ASAP
identify the sequence as arithmetic, geometric, or neither 3, 4.5,6,7.5,...
asked by Anon 
Math
John bought 8 apples and 10 oranges for a total of $41.60. An orange cost 70 cents less than an apple. What was the total cost of the apples?
asked by Max 
Math
Please solve y=3x2 the 2 represents the exponent, because I don't know how to place the exponent in the equation.
asked by Larry