Questions Asked on
October 14, 2015

Chemistry
A gas is confined to a cylinder under constant atmospheric pressure, as illustrated in the following figure. When the gas undergoes a particular chemical reaction, it absorbs 827 J of heat from its surroundings and has 0.66 kJ of P−V work done on it by
asked by Tanner 
algebra
Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's
asked by alex 
chemistry
Am I correct? Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars everyday. Although the actual process also requires water, a simplified equation (with rust shown as iron(III) oxide (Fe2O3) is:
asked by patrick 
english
what sentence pattern is are there any more cookies in the jar
asked by Anonymous 
science
A heat engine draws 800J of heat from its high temperature source and discards 450J of exhaust heat into its cold temperature reservoir during each cycle.How much work does this engine perform per cycle?
asked by MARK 
differential calculus
a man 6 ft tall is walking toward a building at the rate of 4 ft/sec. if there is a light on the ground 40 ft from the building, how fast is the man's shadow on the building growing shorter when he is 30 ft from the building?
asked by jordan 
reading
What is the root prefix and suffix for barren? I think for prefix it it none and no suffix and root is barren am i correct?
asked by 🐶 
English Comp.
(1) After Sean was arrested for breaking into a pawnshop, I began to wonder. (2) Why did some kids from my neighborhood end up in trouble while most of us didn't? (3) I started out with a question: What causes young people to make bad choices? (4) Now,
asked by Jasmin 
Grade 4 Math
Ali has a bag of marbles, if he puts them into groups of 7, then there are 5 marbles left over. If he puts them into groups of 8, then there are 2 marbles left over. How many different answers can you find if the bag has fewer than 300 marbles?
asked by Annon10 
algebra
solve by subsitution 2x+y=9 8x+4y=36
asked by kathyu 
Physics
Two blocks M1 and M2 are connected by a massless string that passes over a massless pulley as shown in the figure. M1 has a mass of 8.25 kg and rests on an incline of 73.5°. M2 rests on an incline of 15.5°. Find the mass of block M2 so that the system is
asked by meg 
kite
the sixth term of an arithmetic progression is 21 and the sum of the first 17 terms is 0. write the first three terms.
asked by chalton 
MATH
find the like terms in the expression y+ 1.2y + 1.2z. A y and 1.2y B 1.2y and 1.2z C y and 1.2z D y,1.2y, and 1.2z Simplify 2 + 17x  5x + 9 A 19x + 4 B 12x + 11 C 22x + 11 D 15x  4 simplify 3(5y+6)4 A 11y + 14 B 11y + 18 C 15y + 14 D 15y + 2 Factor 81 
asked by Deez Got Hee 
language arts
in ¨Harriet Tubman¨ what main idea do the details about William still´s records support? A) the fugitives´ trip north was difficult. b) the escaping slaves were not able to carry much with them as they traveled north. c) Harriet Tubman was justified i
asked by Ana 
cultural diversity
Which is NOT a strategy that can be implemented by a teacher to understand a family’s goals for his or her child’s linguistic development? A. The teacher can create a parent survey. B. The teacher can assume each family has the same goal for their
asked by Lauren 
Geometry plz help its not to hard
18. Two lines intersect at a point. the vertical angles formed are supplementary. What is the measure of each of the angles? Explain.
asked by Jimmy 
College/Career Math
You choose a tile at random from a bag containing 5 tiles with A, 9 tiles with B, and 4 tiles with C. You pick a second tile without replacing the first. Find each probability. P (A then C) P (C then B)
asked by Bethanie 
math
solve by substitution 7x2y=35 x4y=5 2x+y=9 8x+4y=36
asked by kathyu 
language arts
which sentence uses the future tense of the verb to go correctly? a) she has gone to Paris only once. b) she is going to Paris this season c) she will go to Paris next autumn. d) she´s been going to Paris for years. which of the following words or phrases
asked by Ana 
Math
200 elementary school students were surveyed to find their blood groups. Of those, 55 were of blood group A, 85 of blood group B, and 21 of blood group O. What is the probability that a randomly chosen student has either blood group A or blood group B? A)
asked by Hailey 
Math
Building A is 190 feet shorter than Building B. The total height of the two buildings is 1520 feet. Find the height of each building.
asked by David 
chemitry
how many grams of hydrogen sulfide will react completely with 12 grams of oxygen?
asked by cora 
Chemistry: Equilibrium
So, I think I'm doing everything right and even checking my math, but it keeps showing up as wrong. If someone can help me and go into detail,including the quadratic formula, I would appreciate it: Phosphorus pentachloride decomposes according to the
asked by Jessica 
maths
amit is 32 years younger than his father. 4 years ago his age was one fifth of his father age. find their present ages.
asked by shehzad 
Math
What is ^90 to nearest integer? A. 3 B. 5 C. 7 D. 9 I'm not sure how to get the answer. Can anyone help?
asked by Amber 
math statistics
Convert Ken's chest, waist, and hips measurements to zscores. Which of these measures appears to be the most different from kens reference group(human males)? Justify with an appropriate statistical argument. Ken's chest=75.0,waist=56.5,hips=72.0 Human
asked by zan 
Chemistry
A 0.179 g sample of a vitamin C tablet was titrated with 0.1000 M NaOH according to the procedure in this experiment. The titration required 7.08 mL of NaOH solution. How many moles of NaOH were used in the titration? How Many moles of Vitamin C were in
asked by Anonymous 
Physics
Resolve a force of 23 N at 180 degrees and a force of 47 N at 270 degrees.
asked by Jason 
physics
a force of 100.0N act in a direction at an angle of 45 degrees with the x axis. What is the magnitude of the x component of force. I got 70.7 but I think I am wrong can you tell me
asked by cody 
Statistics
for a population with m=62 and s=12, find the x value that corresponds to esch of the following zscores: 0.25,1.50,0.50,2.00
asked by Gloria 
Logarithm help please
The intensity, I, of light passing through water can be modelled by the equation I=10^10.13, where x is the depth of water in metres. Most aquatic plants require a light intensity of 4.2 units for strong growth. Determine the depth of water at which most
asked by Joe 
Physics
Gun fires at 400m /sec.What is the range of the gun shen elevated at an angle of 30 degrees.
asked by Carlene 
math
Suzanne bought 50 apples at the Apple orchard.she bought 4 times as many red apples as green apples. How many more red apples than green apples did Suzanne buy?
asked by debra 
Probability
In a gambling game, a man is paid 400 if he draws a jack or queen and 500 if he draws a king or ace from an ordinary deck of 52 playing cards. If he draws any other card, he loses. How much should he pay to play if the game is fair? My answer is 138.46. Am
asked by Jen 
Biology
Cite a way the excretory system helps maintain homeostasis, besides removing wastes,water,carbon dioxide, and salts.
asked by Cassie 
Math
Mr. Youn has 30 times as many pencils as Jack. The whole school has 200 times as many pencils as Jack. If Jack has 2 pencils, how many pencils do the following have?
asked by Anonymous 
7th Grade Maths
If Betty can jog 1500 metres in 10 minutes, how long will it take her to jog 10 Kilometres? PLEASE HELP ME IN THIS QUESTION I NEED IT HELP MEEEEEE!
asked by Tori 
science
Covalent compounds are bad conductors of electricity.Why?
asked by sujal 
Chemistry
Two separate flasks are each filled with a gas at 25.0°C; the valve between them is opened and the gases are allowed to mix. What would be the final pressure in torr after mixing, if initially H2 is in the first flask (Volume = 4.000 L) at 271.8 torr and
asked by Help123 
physics
A 5 kg box is sitting on a table. Bob's hand is pushing down on the box with a 12 N force. Find the normal force on the box. (draw this)
asked by Beverly 
Physics
You are pulling handle of a wagon with a force of 270N. The handle makes an upward 35 degrees angle with the ground. The loaded wagon has a mass of 95kg. 1.what is the weight of the wagon? 2.How much of your applied force pulls the wagon forward? 3.what is
asked by Anonymous 
algebra
0.000027 ÷ 0.000009 Requirements: • Explain how to use scientific notation to solve the problem. • Describe how to divide numbers written in scientific notation. I am re posting again because i need more help then what i got because i don't understand
asked by cheyann 
Chemistry
I have a metal sheet of indium, and when a uv light with a wavelength of 265 nm is shone on it the surface ejects electrons that have a kinetic energy of 8.31x10^20 J per ejected electron. I'm asked to find the threshold frequency, I need to know how to
asked by Alyssa 
Math
The passenger bus starts out and travels at 65 kilometers per hour. three hours later, a car starts out from the same place and overtakes the bus in 8 hours and 40 minutes. what is the rate of the car?
asked by Chen 
History
7. all of the following were reasons behind the creation of the georgia colony except charity defense religion economic 8. which statement does not correctly describe james oglethorpe? he worked to reform prisions in england. he opposed laws that placed
asked by HELP PLZZZ 
Math
If Phong paints 1 square yard in 2 minutes,how long will it take him to paint a fence that is 3 feet tall and 30 feet long?
asked by Anonymous 
Math
A bag of marbles contains 5 red, 3 blue, 2 green, and 2 yellow marbles. What is the probability that you choose a blue marble and then another blue marble, assuming you replace the first marble? A)1/24 B)1/16 C)1/2 D)3/4 D? or C? Sarah rolls a die twice.
asked by Hailey 
English
To face life’s crises with courage and faith, everyone needs to feel connected to others to feel pride in his/her purpose, and to believe that overcoming the problem is possible. Provide evidence from the text to support the theme in red above. Please
asked by ahboogala 
washighton
why is 2,482 not a reasonable answer for 542 times 6
asked by adlinvelez 
Language arts
Clayton enjoyed listening to the suite at the concert, so he went home and downloaded the music As it is used in the sentence above, suite is to _______ as book is to author. Notes Audience Rhythm Composer I can't choose between C and D
asked by Shalee ^~^ 
chem
A student mixes 5 mL of 2.00 x 10^3 M Fe(NO3)3 with 5 mL 2.00 x 10 ^3 M KSCN. They find that in the equilibrium mixture concentration of FeSCN^2+ is 1.40 x 10^4 M. Find each of the following: the initial concentration in solution for Fe^3+ and SCN, the
asked by Grant 
AP Physics
You are standing at the top of a cliff that has a stairstep configuration. There is a vertical drop of 6 m at your feet, then a horizontal shelf of 10 m , then another drop of 4 m to the bottom of the canyon, which has a horizontal floor. You kick a 0.49
asked by MJay 
science
Which variable in the following statement would be placed on the Yaxis of a graph? If the amount of light increases, then the plants will grow taller.
asked by Anonymous 
Algebra
4(3x+w)+6(6w+2x)
asked by Maria 
Maths
A woman is 3 times as old as her daughter.six years ago,the sum of their age was 36.find the daughter's age.
asked by Isabelle 
Math
1. Order the numbers from least to greatest. (1point) 5^3,4/7, sqr 5, 3/8,0.003 My answer: 0.003,4/7,3/8,5^3,sqr 5
asked by Kyana Lee 
MATH
Where is the number √6 located on a number line? A. between 3 and 4 B. between 4 and 5 C. between 1 and 2 D. between 2 a
asked by Shalee ^~^ 
Maths
Find the polynomial,P(x) such that x^3+x^213x+3 is identical to (x3) P(x) Thankyou
asked by Anonymous 
Math
Your friend is 1.2 times taller than you. Your friend is 64.5 inches tall. How tall are you?
asked by Paul 
Math
(34sin^2A)(13tan^2A) =(3tan^2A)(4cos^A3)
asked by Shreya 
science
Ethical conflict over cases of crossborder and multigenerational pollution is an example of a dispute relating to
asked by Anonymous 
chemistry
What is the change in internal energy (in J) of a system that absorbs 0.246 kJ of heat from its surroundings and has 0.771 kcal of work done on it? Is this correct? 0.246, kJ x (1000 J/1 kJ) = 246 J 0.771 kcal x (4184 J/1 kcal) =3225.86 j 246 J + 3225.86 J
asked by patrick 
Calculus
Differentiate to find critical numbers and leave function in fully factored form. g(x) = (x^2+1)^5(x^2+2)^6 g'(x) = (x^2+1)^5[6(x^2+2)^5(2x)] + (x^2+2)^6[5(x^2+1)^4(2x)] g'(x) = 2x(x^2+1)^4(x^2+2)^5[6(x^2+2)(2x) + 5(x^2+1)(2x)] g'(x) =
asked by Justin 
Maths
Find the coefficient of x^2 in the following expansion. (you do not need to expand the brackets in full) (x4)(x^3+x^22x1) Thank you
asked by Anonymous 
School Sports teams
So I have to write something on the advantages and disadvantages of middle school sports team. So i know public school is free but are the teams?
asked by Cami 
Math
Whats 9 + 10. My younger sister (whos obsessed with texting) asked me whats 9 + 10. I say 19, and she laughs. shes been held back multiple times, so I seriously don't know if shes joking about that 21 meme, or really simply stupid
asked by Memes Master 
science
how do endotherms stay warm. plz help me
asked by k.c (hidding real name here) 
Math🤓
A farmer wants to make a fence that is 32 ft. By 40 ft. If he wants to put up a fence post every 4 feet how many posts will he need? I got 18 because 40 divided by 4 is 10 and 32 divided by 4 is 8 then I added 10 and 8 and got the answer of 18
asked by Leena 
science
what are two consequences of spraying insecticides to get read of mosquitoes
asked by manuel 
Physics
A permanent magnet creates a homogenous magnetic field B~ inside a rectangular region. The magnet is moving with a velocity ~v ⊥ B~ . A particle at rest with mass m and charge Q is on the path of the magnet. Assume that the magnet has a mass much larger
asked by Ryan 
Physics
If there was a way to accelerate a spaceship close to the speed of light to go visit some neighboring star system, one would still face the problem that every particle the spaceship finds on its way will be a projectile hitting it with almost the speed of
asked by Ryan 
Physics
Remember the Poynting vector? The magnitude of this vector gives the amount of energy per second that flows through a unit area (in the direction it gives) because of the presence of a combination of electric and magnetic field, like in an electromagnetic
asked by Ryan 
Math
Last questions, thanks for everything There are 21 plates of tomato sandwiches, 27 plates of cheese sandwiches, and 12 plates of beef sandwiches on a buffet table. If a guest randomly picks a single plate, what is the probability that he gets tomato or
asked by Hailey 
math
Can someone please check my math questions? My answers are under the questions... I would really appreciate any help Questions~ 16. A car’s speed before a sudden stop can be estimated by the formula S = √(30gk) , where S = speed of the car in mph, g =
asked by Abby 
Algebra 2
Create multiple representation of each line described below A line with slope 4 any y intercept 6
asked by Tam 
Algebra 2
Solve the following algebraically X+2y=17 Xy=2 can you pls leave the steps of how to complete this problem
asked by Tam 
Reading
Jake And Janet Were Together, and they had a fantastic day together. Choose the best way to rewrite it so it does not repeat ideas. A. Jake and Janet were together and they had a fantastic day together. B. Jake and Janet had a fantastic day in each other's
asked by John Doswell 
Chemistry
We did a titration lab, and one of the postlab questions says: "the manufacturer of the vinegar used in this experiment claims that the vinegar contains 5% acetic acid by weight. Use your results and a density of 1g/mL to determine if this claim is true
asked by Alexandra 
reading
What is the prefix suffix and root for previous? Am i correct? No prefix No suffix Root previous Answer ASAP PLZ
asked by 🐶 
maths
after 12 years ajay will be three times as old as he was 4 years ago. find his present age
asked by shehzad 
maths
ram has rs 80 in currency notes on rs 10 and rs 5. if the number of rs 5 currency notes in one more than the number of rs 10 notes how many of each does he have?
asked by shehzad 
History
7. all of the following were reasons behind the creation of the georgia colony except charity *** defense religion economic 8. which statement does not correctly describe james oglethorpe? he worked to reform prisions in england. he opposed laws that
asked by HELP PLZZZ 
reading
1 what is the suffix for deafening? Is it ing? 2. What does lurch mean? Answer ASAP PLZ
asked by maya 
MATH
pAYTON'S WEIGHT IS 60 LBS. sHE IS 5 TIMES AS HEAVY AS HER YOUNGEST BROTHER SETH. wHAT IS SETH'S WEIGHT?
asked by DONNA 
CHEMISTRY!
Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation for this is S2 (g) + C (s) CS2 (g) Kc = 9.40 at 900 K How many grams of CS2 (g) can be prepared by heating 11.7 moles of S2 (g) with excess carbon in a 5.95 L reaction
asked by cal 
maths
in a group of children one fifth play cricket two fifth play football and one fifth play tennis.and 30 play remaining games . find the total number of children.
asked by shehzad 
Maths
A polynomial g(x) is given by: g(x) = (x1)(x+2)(xa)(xb) 1) given that a and b are integers, give the possible values for a and b. Thank you
asked by Anonymous 
Math
one positive number is 14 less than another positive number. if the reciprocal of the smaller number is added to five times to the reciprocal of the larger number the sum is 1/4. what are the two numbers
asked by Riah 
ASAP need help
8. which statement does not correctly describe james oglethorpe? he worked to reform prisions in england. he opposed laws that placed debtors in prision. he favored strict legislation dealing with the jobless. *** he was a member of parliament's house of
asked by Are these correct? 
math (check last answers) plz
Last questions, thanks for everything There are 21 plates of tomato sandwiches, 27 plates of cheese sandwiches, and 12 plates of beef sandwiches on a buffet table. If a guest randomly picks a single plate, what is the probability that he gets tomato or
asked by Hailey 
Culture and society
what is the structure of american society during pre/post emancipation period
asked by Sasha Fierce 
General Chemistry
A 0.179 g sample of a vitamin C tablet was titrated with 0.1000 M NaOH according to the procedure in this experiment. The titration required 7.08 mL of NaOH solution. How many moles of NaOH were used in the titration?
asked by Alex 
Algebra
Explain how you can determine from the graph of a system of two linear equation in two variables whether is an inconsistent system of equation. 2. When you solve a system of equation by the substitution method how do you determine whether the system of
asked by Angelina 
math probability question
If a player rolls 2 dice and gets a sum of 3 or 11 he collects $15. if he gets a sum of 12 he gets $3. the cost to play the game is $2. let x be the net money gained by the player. a. construct the prob distribution of the random variable x b. find the
asked by lily 
Social studies
What simiralities does the Aztecs and the Maya's
asked by Anonymous 
math
How much work is done when a 25 N block of wood is lifted 2.2 meters?
asked by alex 
MATH
find the like terms in the expression y+ 1.2y + 1.2z. A y and 1.2y B 1.2y and 1.2z C y and 1.2z D y,1.2y, and 1.2z Simplify 2 + 17x  5x + 9 A 19x + 4 B 12x + 11 C 22x + 11 D 15x  4 simplify 3(5y+6)4 A 11y + 14 B 11y + 18 C 15y + 14 D 15y + 2 Factor 81 
asked by AABBCC 
biology
why is anaphase the shortest stage in the cell cycle?
asked by alyssa 
Maths
A polynomial g(x) is given by: g(x) = (x1)(x+2)(xa)(xb) 1) Given that g(0)=4 show that ab=2 2) given also that g(3)=40 show that a+b=1 3) given that a and b are integers, give possible values for a and b. Thank you
asked by Anonymous 
precalc
prove the identity: cos^4  sin^4 = cos^2  sin^2 (cos^2 + sin^2)(cos^2  sin^2) cos^2 + sin^2 = 1 cos^2  sin^2 = cos^2  sin^2 is this correct?
asked by dipper 
Chemistry
Using the van der Waals equation, calculate the pressure (in atmospheres) exerted by 91.14 g of Cl2 at 91.11 °C in a 1.00 L container. The van der Waals constants for Cl2 are a = 6.490 L2*atm/mol2 and b = 0.05620 L/mol.
asked by Help123 
zwelinjani,economic
What are welfare payment or consumer subsidies
asked by nontokozokhomo 
MATH
Identify the relation that is also a function. A. {(4, 2) (4, 3) (9, 3) (9, 3)} B. {(1, 0) (2, 3) (3, 1) (1, 5)} C. {(0, 1) (1, 2) (2, 3) (1, 2)} D. {(5, 4) (5, 1) (5, 3) (0, 5)} D???
asked by Shalee ^~^ 
PHYSICS
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.78 m/s, and an 63.5kg
asked by Anonymous 
math
find the like terms in the expression y+ 1.2y + 1.2z. A y and 1.2y B 1.2y and 1.2z C y and 1.2z D y,1.2y, and 1.2z that's all I need im not sure I think its c
asked by Deez Got Hee 
Walnut hill elementary
A football team had 4 plays. The first play they gained 6 yards, the second play they lost 3 yards, the third play they lost 2 more yards and the last play they gained 1 more yard. If they started at he zero yard line where are they now?
asked by Tess 
Statistics
n=13 p=0.75 p (more than 11)
asked by Jen 
Physics
A 75 kg man sits at one end of a uniform seesaw pivoted at its center, and his 24 kg son at the other end. Where would his 55kg wife have to sit to balance the seesaw?
asked by Maya 
math
Min wants to create a figure using half as many tiles as an original figure that uses 25 tiles (15 gray and 10 white.) How many gray tiles will she use? I figured half of 25 is 12 and a half and half of 15 is 7 and a half. So I think she would use 7 and a
asked by Jeremy 
English
I'm just looking for some ideas for an essay on a Tale of Two Cities.... it can be anything related to the book... and I'm not asking you to do my schoolwork for me... I can develop the thesis and points but I just need some ideas... this is for a 4u
asked by Sarah 
Adding and Subtracting Rational Numbers
1/2+1/3 3 1/5+6 1/2 5/8(2/8) 9/102/5 6 3/5(2 1/5)
asked by Dee Snuts 
William James middle
A 5 pound bag of peanuts is on sale for $9.30.itcis going to be divided into 3/4 pound bags.how much will it cost to fill one smaller bag?how many bags of peanuts will be remaining?
asked by keisha 
Social Studies
In a fully developed paragraph, evaluate the rule of the trustees as a success or failure. Explain your reasoning. Can anyone help?
asked by Amber 
Career
How Much does a Ferrari rent cost per month? I need to know this for a career project, which car i want and i want a Ferrari, i tried searching it but I can't find it!:( Plz help asap:)
asked by Labbayk 
Area of a triangle i need help urgently
in triangle ABC b=6 c=8 and angle A=60degree find the area of a triangle.let AD be the bisector of A where D lies on BC and AD=K?? Show that AD=24root3/7...
asked by Collins 
Math
A lock has 3 tumblers each has 10 numbers from one through zero, how many possibilities to open lock and what are the numbers ?
asked by John 
Math
True of false A broken scale can make changes in data appear less they than they actually are. If false, explain why. I know the answer is false because it is in my book, but I don't understand why.
asked by Katie 
Infinity series i need help also
To what value does the sum of 20+12+36/5+.............tends to infinity??
asked by Collins 
PHYSICS
Car A uses tires for which the coefficient of static friction is 0.399 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 10.4 m/s. Car B uses tires for which the coefficient of static friction is 0.831 on the
asked by Anonymous 
MATH
Use the converse of the Pythagorean theorem to determine which of the following are side lengths of a right triangle. A. 2.1, 2.8, and 3.5 units B. 2.3, 2.8, and 3.6 units C. 2.2, 2.9, and 3.6 units D. 2.2, 2.7, and 3.5 units C?
asked by Shalee ^~^ 
maths
6 11/12 ÷ 9 1/5 * 12/8
asked by atish patel 
Algebra
1.Is the line contains the points P1(1,2)and P2(3,4) perpendicular to the line that contains the points Q1(1,3)and Q2(4,1)? 2.a line given two points P1(4,5),P2(4,3)
asked by Angelina 
physics
Suppose that a net force F gives an object with a mass of m an acceleration of 9.65 m/s/s. Suppose that the net force were increased by a factor of 4.7, and the mass were increased by a factor of 3.0. What would be the new acceleration (in m/s/s)? Please
asked by Janice 
Science
Suppose you found a fossil of a clam shell what can you conclude about the onceliving organism and how it became a fossil?
asked by HelpMePlease 
maths
every 2cm2 of cardbord has a mass of 1g.what is the mass of the cardbord to make the box.th e box is 16cm long 22 cm high and 4 wide
asked by lilly 
science
The concentration of sodium chloride in ocean water is on average 0.060 M. What mass of sodium chloride is present in 25 L of ocean water? How do I answer this question, I have no idea where even to start.
asked by alyssa 
language arts
Which of the following sentences has the correct verb? a) yesterday Denise hikes to the top of the mountain. b)yesterday Denise hiked to the top of the mountain. c)yesterday Denise has been hiking to the top of the mountain. d) yesterday Denise will hike
asked by Ana 
Physics
A block of mass m = 5.0 kg is pulled along a rough horizontal surface by a rope as sketched in the figure below. ( rope is at a 30 degree angle from the horizontal) The tension in the rope is 50 N, and the coefficient of kinetic friction between the block
asked by Wrenn 
math 51
f(X)=(x1)^2*(x2)^3
asked by loucille 
jefferson ore
Using digits 19to build following numbers largest even number,largest number with 8 in millions place, smallest number .don't understand how to do this
asked by tina 
Statistics
Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 babies is selected. What is the probability that the average weight of the sample is less than
asked by Obi 
Math
How would I simplify it? 1/3 (3^2 x 3^3)
asked by Ally 
Physics
A golf ball strikes a hard, smooth floor at an angle of 20.7 ° and, as the drawing shows, rebounds at the same angle. The mass of the ball is 0.0528 kg, and its speed is 40.2 m/s just before and after striking the floor. What is the magnitude of the
asked by John 
Math
1. find the two consecutive number such that fiveeights of the smaller number equals threefifths of the larger number. 2. separate 221 into two parts such that their quotient is 8/9. thanks...
asked by Chen 
Math
1. if the largest of three consecutive even integers is multiplied by 5, the product is 6 less than three times the sum of the first two integer. fin the integers.
asked by Chen 
Algebra
A triangle has an area of 65ft. Its height is 3 ft more than its base. Find the measure of the base
asked by Danielle 
Math
What is the sum of all the integers between  (negative) square root of 9 and square root of 15 (Not negative 9s square root)
asked by Emma 
chem
A hot air balloon with a volume of 3.20 x 103 L and 120 moles of air is at a temperature of 25 °C. The air is heated to 65°C and 250 moles of air is added. What will the new volume of the balloon be?
asked by anonymous 
Physics
A uniform 4m plank with a mass of 45 kg is supported at its ends by two ladders. Two 75 kg men are standing on the plank. One is 1 m from one end and the other is 1.5 m from the other end. Determine the forces exerted by the ladders.
asked by Maya 
Physics
a student performing the centripetal force experiment added some mass to the 25.0g acceleration block. when he did the experiment, he found that the speed at which the accelerated block separate from the magnet was 102 m/s^2. The radius of the circular
asked by parna deljo 
Math
I need help with completing the table of values with x+2y=4 using x values as followed: 0,blank,7,blank and then y values as: blank,0,blank and 3. please help.
asked by Modessa 
Physics
On a banked race track, the smallest circular path on which cars can move has a radius of 114 m, while the largest has a radius of 170 m, as the drawing illustrates. The height of the outer wall is 17.5 m. Find (a) the smallest and (b) the largest speed at
asked by Anonymous 
Physics
a student performing the centripetal force experiment added some mass to the 25.0g acceleration block. when he did the experiment, he found that the speed at which the accelerated block separate from the magnet was 102 m/s^2. The radius of the circular
asked by Layla Smith 
3rd grade math
How to expand algorithm to solve 221+164=
asked by amy 
Math
Two sides of a rectangular fence are 5 and 5/8 feet long and the other two sides are 6 and 1/4 feet long what is the perimeter,?
asked by Hazel 
math
4. When a cake is removed from a pot, its temperature is measured at 3000C. Three minutes later its temperature is 200o C. How long will it take for the cake to cool off to a room temperature of 70oC?
asked by viera 
civics
9. The purpose of the Constitution is presented in the A. Preamble. B. Articles. C. Amendments. D. Bill of Rights.
asked by Anonymous 
History
How do maquiladoras help or hurt the economy
asked by Anonymous 
Probability
The probability that a washing machine will operate satisfactorily for 3 years is 0.82 while the probability that a floor polisher will operate satisfactorily over the same period of time is 0.78. Find the probability that in a 3year period, only the
asked by Jen 
Moorpark
A solution contains an unknown mass of dissolved barium ion. When sodium sulfate is added to the solution, a white precipitate forms. The precipitate is filtered and dried and then found to have a mass of 210 mg. What mass of barium was in the original
asked by Nicole 
Calculus
Someone had helped me yesterday, but I need it broken down more because I honestly don't understand any of this? A plane flying horizontally at an altitude of 2 mi and a speed of 420 mi/h passes directly over a radar station. Find the rate at which the
asked by Callie 
PreCalculas
A ball is thrown upward with an initial velocity of 4 ft/sec from a height of 10 feet. What is the maximum height that the ball will reach? h(t)=16t^2+v0t+s0 Please help im lost
asked by Ryan 
Algebra
The formula h=300t 5t^2 gives the height, h in meters, of a rocket the seconds after take off. The maximum height reached by the rocket is 4500m. How long will it take the rocket to reach this maximum height?
asked by Trish 
Chemistry
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 550 mL of a solution that has a concentration of Na+ ions of 0.600 M ?
asked by Lo 
Q&A
8. which statement does not correctly describe james oglethorpe? he worked to reform prisions in england. he opposed laws that placed debtors in prision. he favored strict legislation dealing with the jobless. *** he was a member of parliament's house of
asked by Heyy Ms.Sue 
Math
solve by substitution x+y=5 x+y=3
asked by Chen 
physics
Suppose the stone is thrown at an angle of 30.0 degrees below the horizontal. If it strikes the ground 57.0 m away, find (a) the time of flight, (b) the initial speed, and (c) the speed and the angle of the velocity vector with respect to the horizontal
asked by Adam 
business math
If you make two equal deposits now and 5 years from now into an account that pays interest at a rate of 4% compounded annually. IF the goal; is to have $12,000 in the account 12 years from now, what should each of the deposits be? .
asked by Miku 
Maths;function i need help
(1):Given the cost function c(x)=10+2x and the revenue functio r(x)=3x,find break even quantity and the price (2):if the marginal cost of producing x unit is given by c'(x)=0.4x^3+2x and the fixed cost is p4000.00 find the cost function c(x) and cost
asked by Collins 
Algebra
4(a+3)a
asked by James 
Math
x + 7 = 32 x = 25 Am I right??
asked by Labbayk 
Physics
Two particles of mass 5 g and 10 g respectively are joined by a light string which passes through a small hole on a smooth table. The smaller particle describes a circle of radius R on the table at a rate of 4 revolutions per second while the heavier
asked by an 
physics
6. Calculate the gravitational force between you (weight: 140 lb) and your classmate (125 lb) sitting 20 inches apart on a bench. Answer must be in standard metric units. I don't want the answer can you just explain how to put it together and how do I add
asked by Anonymous 
Rounding
Rounding 10497 to neatest thousand
asked by Milli 
glgmnhs
An arc of a cirle measure 30°.if the radius is 5cm,what is the length of the arc? Give the solution.
asked by rhachelle cortez 
Math
While working at a yard sale, Ying helps a customer who buys items that cost $5, $2,$2.50, and $0.25. The customer hand Ying $3 and says to keep the $0.18 change. How much did the cusomer think the total was? What mistake did the customer make? Explain.
asked by Grace (The Puzzled Penguin) 
glgmnhs
The opposite angles of a quadrilateral inscrib in a circle
asked by rhachelle cortez 
PHYSICS
On a banked race track, the smallest circular path on which cars can move has a radius of 114 m, while the largest has a radius of 170 m, as the drawing illustrates. The height of the outer wall is 17.5 m. Find (a) the smallest and (b) the largest speed at
asked by Anonymous 
science
what acceleraton would m2 in mass24 m/s2acceleratoin of an and m1 a force of 5n produces an acceleeration of 8m/s2 in mass
asked by sangita joshi 
KCC
An electron has a speed of 500 m/Sec with uncertainty of 0.002% what is the uncertainty in position?
asked by Rahul 
chemistry
What is the mass of mercury that can be prepared from 2.00 g of cobalt metal? Co(s)+HgCl2(aq)→CoCl3(aq)+Hg(l)
asked by Benita 
calculus
find the first and second derivatives for 3x^44xy^2+7=2y
asked by jack 
Math
If Phong takes 20 minutes to paint a fence that is 3 feet tall and 10 feet long, what is Phong's rate in square feet per minute?
asked by Anonymous 
Math
David and Mike are brothers. David is 33 years old today. This is three times as old as Mike was when David was the age that Mike is today. How old is Mike?
asked by KC 
chemistry
Name a metal which is found in liquid state at ordinary temperature?
asked by sujal 
us history
What did the founders mean when the wrote ¨to form a more perfect union?¨ A) a military would be formed to protect against foreign threats. b) a court system would be formed to resolved disputes between citizens. c) a process will be created to solve
asked by Ana 
Physics
A man exerts an effort of 250 Newtons through a distance of 4 meters to lift a load of 1000 Newtons through a height of 0.75 meters. Calculate the velocity ratio. I'm thinking i divide the 4 meters(displacement of effort)/0.75 meters (displacement of load)
asked by Cortney 
Math
Complex Numbers please helpppppp and show solutions 1.) (37i) + (12i) 2.) (45i)  (23i) 3.) (75i) + (6+9i) 4.) 2+3i/35i
asked by Denzel 
Chemistry
We did a titration lab, and one of the postlab questions says: "the manufacturer of the vinegar used in this experiment claims that the vinegar contains 5% acetic acid by weight. Use your results and a density of 1g/mL to determine if this claim is true
asked by Alex 
college algeb
Inequalities 1.) 3(t+1)>2t 2.) 2p+1/5 > 3 3.) x^23x10 >= 10
asked by Denzel 
chemistry
How are ions formed?
asked by sujal 
college algeb
1.) 3(t+1)>2t 2.) 2p+1/5 > 3 3.) x^23x10 >= 10 please help and show solution
asked by Denzel 
Maths
If Betty can job 1500 meters in 10 minutes, how long will it take her to jog 10 Kilometres? PLEASE HELP MEEEEEEE!!!
asked by Tori 
chemistry
Copper plate can be used as cathode but it cannot be used as anode in electrolysis of water,why?
asked by sujal 
MATH
find the area of the triangle whose base is: 2a+2b _______ ab and the height is: ab _______ a^2 + 3ab + 2b^2 Thank you!!
asked by Camz 
chemistry
Name a lustrous non metal?
asked by sujal 
MATH
Simplify: 1 1 _____ _ ____ 5 + h 5 _________________ h Thank you :)))
asked by Camz 
MATH
There are (64x^2  y^2)red marbles and (64x^2  16xy + y^2) green marbles in a box what is the ratio of the number of red marbles to the number of green marbles ? Thank you :))
asked by Camz 
chemistry
Write the differences between atom and molecules?
asked by sujal 
chemistry
Which ions are formed during electrolysis of water?
asked by sujal 
Cranborne
In the diagram AOBP is the major sector of a circle centre O.BO=8cm, AOB=156° and the sector is bent to form a right cone. a)Caculate the radius of the cone b)Calculate the vertical angle of the cone
asked by Kudakwashe 
Bule hora preparatory school
An ideal gas is sealed within a container at a tempreture of 17 degree celcies and a pressure of 101KPa. The container is heated until the tempreture of the gas reaches 100 degree celcies. A valve in the container is then opened to allow gas to escape
asked by Bilisuma hussein 
math
Your taxi charges $3.00 for the first onefourth of a mile and $0.50 for each additional one quarter of a mile. How much will the charge be if you have driven for 1.75 miles?
asked by Pam 
physics
Sound wave with greater amplitude travels farther than that with smaller amplitude?
asked by sujal 
physics
Why is voltmeter connected in parallel in electric circuit?
asked by sujal 
chemistry
Acid is required for calcium carbonate to fully dissociate. Determine the volume of 6M hydrochloric acid that must be added to dissolve the mass of CaCO3 you calculated in the question above taking into consideration the equations below. CaCO3>Ca+CO2
asked by Jennifer 
physics
Why is voltmeter made of high resistance?
asked by sujal 
Math
If the lengths of the legs in a right triangle are 7 and 8, what is the approxir? 1.4 3.5 5.4 10.6 I think it is 5.4
asked by Lost 
AP Physics 1
In the javelin throw at a trackandfield event, the javelin is launched at a speed of 33 m/s at an angle of 32° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes. How
asked by Anonymous 
physics
What is voltage and electromotive force?
asked by sujal 
physics
What are differences between nuclear fusion and nuclear fission?
asked by sujal 
math
stamps are sold in booklets of 100, 50, 10 find as many different ways to buy 200 stamps as you can record your work I the chart
asked by yamini 
Math
If it take Ping 20 minutes to paint a fence that is 3 feet tall and 10 feet long,how long will it take her to paint a fence that is 6 feet tall and 20 feet long, assuming she continues at the same rate?
asked by Anonymous 
science
A cubic container full of hot water at a temperature of 90 °C is completely lagged with an insulating material of thermal conductivity 6.4x104 Wcm1K1 (6.4x102 Wm1K1). The edges of the container are 1.0 m long and the thickness of the lagging is 1.0
asked by Pam 
physics
The force of gravity on a box is 597 N on the surface of the Earth. Find the mass of the box.
asked by Nicholis