# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,718 questions, page 750-
## pre cal

can someone please show me how to verify this identity? (sec x/csc x minus cot x) minus (sec x/csc x + cot x)= 2 csc x

*asked by Vania on May 12, 2011* -
## msg for Sra (art)

Thanks for your help. Dawn Dupree was the artist given to us. Not our choice! Mainly I have to find her works, title of each piece and date they were completed. When I have this information and written it down, I have to do my own work and version etc. I

*asked by mitchell on October 3, 2008* -
## CHEMISTRY

How many moles of Calcium chloride can be added to 1.5L of 0.020potassium sulphate before a precipitate is expected? Assume that the volume is not chnaged significantly. CaSO4 ==> Ca^+2 + SO4^= Ksp = (Ca^+)(SO4^=) = ??. Look it up. (SO4^=) = 0.02 M Use Ksp

*asked by Delli on May 14, 2007* -
## physics

a boy on a small hill aims his water ballon slingshot horizontally straight horizontally at a second boy hanging from a branch of a tree at a distance of d away . at the instant ballon is released the second boy let go and fall off froom tree to aviod eing

*asked by Anonymous on February 17, 2012* -
## physics

A 2.0kg block is sitting on a 15 degree incline. The coefficient of friction is 0.22. What is the minimum force needed to cause the block to accelerate UP the slope? The force applied has to be slightly greater than the force of friction (mu(mgCosTheta))

*asked by mclanee on September 13, 2006* -
## Middle school digital art and design questions

So, I need to check these, thx guys!!! When a artist receives royalty It Is A fee for the use of the art*** The right to create your own art Permission to use someone else's art The cost associated with making a product I think A, But that may be wrong,

*asked by Elizabeth on December 11, 2017* -
## physics

A cart loaded with bricks has a total mass of 27.7 kg and is pulled at constant speed by a rope. The rope is inclined at 23.7 ◦ above the horizontal and the cart moves 23.1 m on a horizontal ﬂoor. The coeﬃcient of kinetic friction between ground and

*asked by edgar on October 10, 2011* -
## math

Work the following area application problem. You are given the job of laying carpet for a six-story building. At each floor the dimensions of the floor are 75 meters in length by 40 meters in width. A stairwell takes up a space 2.5 m by 1.5 m, and cuts

*asked by C on July 1, 2016* -
## physics

A 60 kg skier with an initial speed of 12 m/s coasts up a 2.5 m high rise that makes a 35 degree angle with the horizontal. If the coefficient of friction between the skis and the snow is .08, find the speed of the skier when he reaches the top of the

*asked by Me on October 9, 2010* -
## Business Management and Leadership

You work in the Human Resources department of your organization. You have been charged with recruiting a manager for a department within the Services division. The Vice-President of the Services division stresses to you that "This department hasn’t had a

*asked by Anonymous on September 4, 2008* -
## Physics

Calculate the work done by non conservative forces of a hockey stick hitting a tennis ball using elastic potential energy, and kinetic energy if the mass of the ball is 0.058kg and the ball is shot at 34m/s for .41s and travels 5.09m, and the hockey stick

*asked by Pat on June 13, 2011* -
## physics

A cart loaded with bricks has a total mass of 13.5 kg and is pulled at constant speed by a rope.The rope is inclined at 27.9 degrees above the horizontal and the cart moves 13mts on a horizontal floor.The co efficient of kinetic friction between ground and

*asked by Saumya on October 13, 2011* -
## physics - please hellp

I need help with two questions: 1) An object can only have a charge that is an integral multiple of the charge on the ___. Am I correct with "electron" as the answer? or possibly elementary charge? 2) The difference in potential between any two points in a

*asked by Sushmitha on April 19, 2011* -
## Computer

Home work:- Write a program to read 5 records consists of first name, last name, id and grade. Assign the grade according to the following specifications: 0

*asked by Bano on March 20, 2014* -
## Physics

A cart loaded with bricks has a total mass of 28.5 kg and is pulled at constant speed by a rope. The rope is inclined at 28.1 ◦ above the horizontal and the cart moves 13.9 m on a horizontal floor. The coefficient of kinetic friction between ground and

*asked by Shakib on November 9, 2010* -
## psychology

mandy has decided that she has no control over the aversive stimull she encounters at work and at home day by day. thus, she has given up trying to make her life better psychologists would say mandys worldview illustrates a.) emotion-focused coping b.)

*asked by alisha s on April 7, 2011* -
## Physics

A cart loaded with bricks has a total mass of 25.4 kg and is pulled at constant speed by a rope. The rope is inclined at 30.6 ◦ above the horizontal and the cart moves 18.4 m on a horizontal ﬂoor. The coeﬃcient of kinetic friction between ground and

*asked by Casey on October 13, 2013* -
## physics

A cart loaded with bricks has a total mass of 18 kg and is pulled at constant speed by a rope. The rope is inclined at 30.4 above the horizontal and the cart moves 21.5 m on a horizontal floor. The coefficient of kinetic friction between ground and cart

*asked by phys1! on October 14, 2011* -
## business

Select the statement which reflects the employer position on electric monitoring. a.) An employee's actions during work time are at the discretion of the Company. b.) Employees should be notified of any electronic monitoring and its purpose. c.)Electronic

*asked by Dee on August 27, 2013* -
## English expression

Thank you for your help 2. Look at the last picture. He is wearing a helmet,is sweating, and is holding a big book. I am not sure whether it is a blue print or a big workbook. As he is an engineer, he seems to write something on the big workbook to do his

*asked by John on March 25, 2008* -
## math 117

Living in or near a metropolitan area has some advantages. Entertainment opportunities are almost endless in a major city. Events occur almost every night, from sporting events to the symphony. Tickets to these events are not available long and can often

*asked by Tina on October 6, 2010* -
## Business Math

Kelly Melcher Furnishings made purchases at a net cost of 36,458.00 after a series discountof 20/20/10. Find the list price. let the original list price be $x and now use this argument: after the first discount the price would be .8x -----> (100% - 20% =

*asked by Janean on May 14, 2007* -
## algbera

Can you tell if the problem i made up is a good two step equation problem. Steven wants to pay of a car loan the total amount is $500 dollars.He has five months to pay it of.How much does he have to pay per money to pay of the loan .Write a equation and

*asked by alyssa on October 10, 2009* -
## math

10. Sales of televisions grow at a rate proportional to the amount present (t is measured in days). (a)Set up a differential equation to model this problem. (b)Solve the differential equation if at t = 0, there are 20 televisions sold and after 3 days,

*asked by dougal on May 31, 2007* -
## 6th grade

The left and right - hand margins on a sheet of paper are both 1.25 inches wide. The total width of the sheet t of paper is 8.5 inches. Write and solve an equation to find the width of the text area that lies betwen the margins.

*asked by Dan on October 13, 2008* -
## statistics

Mary has already spent 1 minute on the phone, and she expects to spend 4 more minutes with every phone call she routes. In all, how many phone calls does Mary have to route to spend a total of 5 minutes on the phone? Write and solve an equation to find the

*asked by Anonymous on November 21, 2011* -
## Psychology-Assesment

According to Cattell, a person trying to solve an entirely new kind of problem is using his or her__________, whereas a person working on a task that he or she knows well is using his or her ________ a. general ability, specific ability b. intelligence B,

*asked by Crystal on August 23, 2013* -
## math help pls

1. Evaluate 6r + 7 for r = 1.2. (1 point)0.2 7.2 13 14.2 2. Write an algebraic expression for “Julie runs three miles less than twice the number of miles, n, that Hannah runs.” (1 point)2n – 3 3n – 2 2n + 3 3n + 2 3. Solve 5s + 40 = 55 using number

*asked by Anonymous on November 13, 2012* -
## English assignment

We have to write a one page reflection on honesty, I need help. What are some real world situations in which this value is being violated? What actions does your conscience call you to take to respond to real world situations in which this value is being

*asked by Bob on October 4, 2015* -
## math/116

The formula b=28a is used in New England to estimate the minimum furnace output, b, BTUs, for a modern house with a square feet of flooring. a. Determine the minimum output for a 2300 ft squared modern house. b. solve the formula for a.

*asked by Angela on May 29, 2011* -
## math

To avoid a pond, Tom must walk 10 meters south and 24 meters east. To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 10^2 + 24^2 = C^2 100 + 576 + C^2 C^2 = 676 C^2 = SQRT of 676 or 26 meters Not sure how to

*asked by mike on June 4, 2016* -
## math

A veterinarian has instructed Harrison to give his 75lb dog one 325 mg aspirin tablet for arthritis. the amount of aspirin A remaining in the dog's body after t minutes can be expressed by A=325(1/2)^(t/15). write and solve a logarithmic inequality to find

*asked by yaz on February 20, 2008* -
## Physics

I'm having problems setting up an equation to solve for time t in a projectile motion problem. What is given is horizontal position, accerlation due to gravity, the initial speed with, the angle, and the vertical position related to speed. I'm suppose to

*asked by Angel on October 14, 2012* -
## Calculus

Can someone help me solve these two questions? Thanks 1) Use the mid-point rule with n = 4 to approximate the area of the region bounded by y = -x^3 and y = -x. 2) A rock is thrown upward with a speed of 48 feet per second from the edge of a cliff 400 feet

*asked by Ryan on July 15, 2018* -
## Algebra 2 A Conic Section

Franco is adjusting a satellite because he finds it is not focusing the incoming radio waves perfectly. The shape of his satellite can be modeled by y^2+6y-3x+3=0, where x and y are modeled in inches. He realizes that the static is a result of the feed

*asked by Nino on April 12, 2015* -
## AP Calculus

Can someone help me solve these two questions? Thanks 1) Use the mid-point rule with n = 4 to approximate the area of the region bounded by y = -x^3 and y = -x. 2) A rock is thrown upward with a speed of 48 feet per second from the edge of a cliff 400 feet

*asked by Ryan on July 15, 2018* -
## Algebra 2

Operations with Complex Numbers Simplify. 1. sqrt(-144) 2. sqrt(-64x^4) 3. sqrt(-13)*sqrt(-26) 4. (-2i)(-6i)(4i) 5. i13 6. i38 7. (5 – 2i) + (4 + 4i) 8. (3 – 4i) – (1 – 4i) 9. (3 + 4i)(3 – 4i) 10. (6 – 2i)(1 + i) 11. (4i)/(3+i) 12. (10+i)/(4-i)

*asked by Brian on February 8, 2008* -
## Algebra 1

One long-distance telephone company offers a plan such that the first 20 minutes costs $.99 and each additional minute costs $.09. Solve an inequality to find the maximum amount of full minutes you can talk for $5.00. At first I got: 5 is greater than or

*asked by Julia on October 14, 2013* -
## chemistry

SOMEONE CAN PLZ EXPLAIN IN DETAIL HOW TO SOLVE THIS PROBLEM..THNKS Molar Volume of Sodium If you assume that an atom is a hard sphere, you can estimate the average volume of space it occupies using basic geometry. Question Estimate the volume, V , of a

*asked by unkname on November 9, 2008* -
## Math

Mr. Sockem wears only black or navy blue socks, which are exactly alike except for their color. He has six pairs of each color, and he keeps them all mixed up in a drawer. One night, while the room was in complete darkness, he wanted to find a pair of

*asked by Rachel on March 1, 2016* -
## Physics

Hello to all the fantastic tutors! I'm stuck on this question, I was wondering if there is a way to solve this. A car horn emits 378Hz sound. If the car moves at 23m/s with its horn blasting, what frequency will a person standing in front of the car hear?

*asked by Tommy on March 10, 2015* -
## Math

The table shows the number of people switching to a new telecommunications company over a 7-day period in August. Day=number of people 1=10 2=17 3=37 4=79 5=106 6=231 7=500 Using this estimate how many people will switch on august 31st. * it's an

*asked by Marina on May 6, 2014* -
## Physics

A particular steel guitar string has mass per unit length of 1.79 g/m. and tension of 61.9 N. For the wave speed to be increased by 1.9%, how much should the tension be changed? I tried increasing the wave speed (186 m/s) by 1.9%, plug that into

*asked by Bruce on July 17, 2012* -
## Physics

35 of copper pellets are removed from a 300 oven and immediately dropped into 120 of water at 20 in an insulated cup.What will the new water temperature be? I'm stuck on this problem and could use some help. I used q pellets = m · Cp · ΔT and q water =

*asked by Liz on April 5, 2011* -
## Physics

A rotating door is made from four rectangular glass panes. The mass of each pane is 90kg. A person pushes on the outer edge of one pane with a force of F=70N that is directed perpendicular to the pane. Determine the magnitude of the door's angular

*asked by CJ on March 24, 2007* -
## chem

a 1,000 ml coke bottle is 1/3rd filled with coke, and the rest occupied with air. Suppose this bottle is left outside and allowed to heat up to 120 degrees Fahrenheit. Assuming this bottle has an internal pressure of 768 mmHg how many atoms of gas are

*asked by Anonymous on March 16, 2008* -
## chemistry

If it requires 30.0 milliliters of 1.2 molar HCl to neutralize 20.0 milliliters of NaOH, what is the concentration of the NaOH solution? Balanced equation: NaOH + HCl NaCl + H2O 0.60 M NaOH 0.80 M NaOH 1.3 M NaOH 1.8 M NaOH

*asked by Magan on June 22, 2011* -
## Geometry

The length of a rectangle is 1cm longer than its width. If the diagonal of the rectangle is 4cm, what are the dimensions(the length and the width)of the rectangle? L=W-1 Diagonal = sqrt(L^2 + W^2) substitutuet for L in the second equation, solve for W.

*asked by Audrey on June 9, 2007* -
## maths triangels

a building having height 25ft cast a shadow 35ft and a person standing on the building of height h and cast a shadow 10 ft wht is the height off man ? please answer me how to solve

*asked by jaspreet on January 24, 2015* -
## Physics(Please help)

using the equation y=yo + (vo sin Q) t - 1/2gt^2 I have to find t. The values for y, yo and vo were given to me. So I set the equation up like this: 0=1.005 + (3.107 sin 0) t - 1/2(9.8)(t^2 The sin of 0 is 0 times 3.107 is 0. So 0 = 1.005 t - 4.9 t^2 Now I

*asked by Hannah on September 12, 2012* -
## Math

Alex scored 13 points in the basketball game. This was 1/5 of the total points the team scored. Write and solve an equation to determine the total points t the team score.

*asked by rachel on September 24, 2012* -
## Math on time

Trying to understand how to solve this? Paige spends 1 hour on her homework. She spends equal amounts of time on all subjects. If Paige spends ½ hour on Spanish, how many subjects does she study?

*asked by Jake on January 27, 2013* -
## mathematics

solve this probability :a box contains 10 marble, seven of which are black and three are red.three marbles are drawn,one after the other without replacement. find the probability of choosing 1 red,1 black and 1 red marble. in that order

*asked by fadil on February 15, 2015* -
## Math(Please help)

Using the equation y=yo + (vo sin Q) t - 1/2gt^2 I have to find t. The values for y, yo and vo were given to me. So I set the equation up like this: 0=1.005 + (3.107 sin 0) t - 1/2(9.8)(t^2 The sin of 0 is 0 times 3.107 is 0. So 0 = 1.005 t - 4.9 t^2 Now I

*asked by Hannah on September 12, 2012* -
## Geometry Question

B is the midpoint of segment AC and D is the midpoint of segment CE. Solve for x, given BD=3x+5 and AE=4x+20. Sorry I couldn't get the link for the picture but, the diagram is a picture of a triangle with a C at the top, and A and E on the bottom angles,

*asked by Jenn on January 2, 2012* -
## math

In a bag there are red, green, black,and white marbles. If there are 6 red, 8 green, 4 black, and 12 white and one marble is to be selected at random, what is the probability it will be white? I don't know how to solve these.

*asked by Amy on August 3, 2011* -
## math

Use any problem solving strategy to solve the following problem.The value of a house is expected to increase from its current value of $50,000 by 3%each year .What will the value of the house be after 3 years ?if you have $55,000 in 3 years ,will you have

*asked by Iqbal on March 6, 2014* -
## math

angle PQR and angle TQV are vertical angles. The measure of the two angles have a sum of 100*. Write and solve an equation to find x, the measure of angle TQV.

*asked by Mary on May 16, 2016* -
## algebra

A clock has a minute hand that is 14 feet long and an hour hand that is 9 feet long. What is the average speed (in mph) of the tip of the minute hand no idea how to solve this... please help :)

*asked by sydney on February 4, 2016* -
## MATH

1.The length of one of the equal legs of an isosceles triangle is 8 cm less than 4 times the length of the base. If the perimeter is 29 cm, find the length of one of the equal legs. A) 4 cm B) 5 cm C) 11 cm D) 12 cm answers 4x-8= 4(5)-8= 20-8= 12 2.3x - 2y

*asked by mary on December 7, 2007* -
## Trig

Solve in terms of sine and cosine: sec(x) csc(x)- sec(x) sin(x) so far I have: 1/cos(x) 1/sin(x) - 1/cos(x) sin(x) I am not sure where to go to from there. The book says the answer is cot(x) or cos(x)/sin(x) Thank you in advance.

*asked by Dennis on April 9, 2008* -
## algebra

At the mall, Leona bought a T- shirt and a book for a total of $23. The book cost $12. How much did the T-shirt cost? (a) What is the unknown information? (b) Let x represent the unknown information. Write an additionequation that models theproblem (c)

*asked by Anonymous on August 28, 2017* -
## Chemistry

What would you do in order to solve this question: "The enthalpy of combustion for benzoic acid is -3223.6kj/mol. Use the values of the standard enthalpies of formation of liquid water and CO2 to calculate standard enthalpy of formation of benzoic acid."

*asked by Kylie on November 29, 2014* -
## math

Hello, I am working on exponential equations of best fit. I have a table numbered from 1-7 with corresponding numbers. I put that into my calculator and came up with the exponential equation of best fit as y = 8.46(1.42)^x Now it wants to know how long it

*asked by Carly on April 22, 2019* -
## Math & Chemistry

I having problems converting my answer to just cm. Given: Average Velocity = 1 m/s Water per day = 6,000 m^3/day Want to find the diameter of fluid flow. I am using the equation: D = sqrt(4*q)/(pi*v) q= volumetric flow rate (6,000 m^3/day) v= velocity (1

*asked by Angel on September 13, 2012* -
## Math

Ms.smith has $660 to spend on parking and admission to the zoo.The parking will cost $10,and admission tickets will cost $10 per person, including tax.Write and solve an equation that can be used to determine the number of people that she can bring to the

*asked by Obiageri on January 18, 2017* -
## math

A thrill ride at an amusement park holds a maximum of 12 perople per ride. write and solve an inequality to find the least number of rides needed for 15,000 people. Do you think it is possible for 15,000 people to ride the thrill ride in 1 day? explain

*asked by Aargh on March 23, 2017* -
## algebra1

two consecutive integers such that the sum of 3 times the frist integer and 6 times second integer is 24. Expalin the variables that you used. If I could get help in solving this ASAP, I wiould really appreicate it? Let the two consecutive integers be x

*asked by cheryl on March 26, 2007* -
## 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. • Give you final answer in simplest form. (5 points) i already have the answer,0.000027

*asked by cheyann on October 13, 2015* -
## Math

Your long distance telephone providers offers two plans.Plan A has monthly fee of $15 and $0.25 per minute. Plan B has a monthly fee of $20 and $0.05 per minute.Write and solve an equation to find the number of minuts that you must talk to have the same

*asked by Lara on September 18, 2016* -
## Chemistry

A Power plant rated at 800 MegaWatts generates steam at 585 K and discards heat to a river at 295 K. If thermal efficiency of plant is 70% of maximum value, how much heat is discarded to river at rated power? Please help with steps on how to solve this

*asked by Levi on September 28, 2014* -
## algebra1

How do I solve this x/3=-4? multiply both sides by 3 Please stop posting under sundry names. You are doing yourself no good. What do you mean by sundry names? What's up with you telling me this because I don't know what you mean? My name is Kevin Shaw!

*asked by kevin on March 23, 2007* -
## science

if one mole of the compound AL4C3 has a mass of 144g and mole of carbon has a mass of 12g, calculate the relative atomic mass of the element aluminium any ideas to the answer would be great thanks 4*(Al, amu)+ 3*12 = 144 Solve for "Al,amu", the atomic mass

*asked by brainywaney on April 20, 2007* -
## English

what conclusion can you draw about jason from the dialouge in line 10 in a surprising point of view A. Jason procrastinate doing his schoolwork. B. Jason and Ms. Smith have. good relationship C. Jason is one of the best students. D.Jason is embarrassed to

*asked by Ali on December 13, 2018* -
## PRE-CAL

How can I solve this questions and get those answers???? answers sec 13pi/4=? =>-ã(2) csc 13pi/4=? =>-ã(2) sec (-pi/6)=? =>2ã(3)/3

*asked by MELEK on February 27, 2012* -
## trigonometry

Solve the following equation for all solutions: sin(6x)cos(11x)-cos(6x)sin(11x)=-.1

*asked by Dan on May 15, 2015* -
## Math

A circle has the circumference 28.26cm. What is the area of the circle? use PI as 3.14. i am confused in how to even solve with the circumference to get the area. Please help

*asked by Grant on January 21, 2015* -
## math

I need to solve this problem. A teacher can grade 25 papers in 4 hours. How many papers can he grade in 6 hours?

*asked by Christina on January 22, 2013* -
## math

Find the slope and y intercept of the equation y=(2-a)x+a I know how to find slope and y intercept; I just don't know how to solve this.

*asked by carlee on January 2, 2013* -
## Algebra 1

Find the intercept and then use them to graph the equation 1.4x-13y=3.64. I just can't seem to find the intercept or to even solve the equation. Please help! Thank you so much.

*asked by Esther on January 24, 2011* -
## algebra

solve the following equation by clearing fraction want to know if this right -7/3-5/2x=8+2x 6(-7/3)-(5/2)(6)=6(6)+2x(6) 14x-15=48+12x 14x-12x-15=48+14x-14x 2x-15=48 2x-15+15=48+15 2x=-33 2x/2x=-33/2 x=-33/2

*asked by babygirl on September 6, 2011* -
## precalculus

z1=[cos pi/4 +sin pi/4] z2= [cos 2pi+sin 2pi] z1= sqrt 5 solve. how do you do this? substitute z1 and do what?

*asked by DF on March 17, 2015* -
## history

Which option accurately describes the impact of Confucianism on Asian cultures? Qin Shi Huang declared Confucianism as the Chinese Empire’s official religion, resulting in a civil war. Confucianism established a governmental model, defined leadership

*asked by kayla on January 25, 2018* -
## math

Match the term with it's meaning real numbers irrational numbers rational numbers integers whole numbers natural numbers radical square root perfect squares cube roots terminating decimals repeating decimals truncate radicand a decimal which can be

*asked by shadow on April 17, 2018* -
## Chemistry Check if its right XD

Ok here is the problem but i only need help on part a XD i think i did it wrong..so can you check my work? and tell me where i made the mistake? The space shuttle uses aluminum metal and ammonium perchlorate, NH4ClO4, in tis reusable booster rocket. The

*asked by becky on January 9, 2007* -
## English

Could someone help me write a thesis statement for the following topic: "Our school should be free of all weapons including the guns carried by a police officer." So far this is what i have for a thesis statment. "Although having police officers in our

*asked by Matthew on May 7, 2009* -
## History

2. Which of the following statements is the most accurate depiction of the Aztec Empire? A. It was a highly centralized, tightly administered monarchy developed through military conquest. B. It was a confederation of localities linked by a feudal

*asked by Any on January 22, 2014* -
## astronomy

on a domestic gas cooker the temperture in the hottest part of the flame is about 2200k.if salty eater is spilled in the flame then it becomes yellow-orange.measurements with a spectrometer show the presence of an emission line at 589n. 1) the solar

*asked by amy21 on March 3, 2008* -
## business communication

Starting in September, your company plans to increase the monthly fees it charges to its clients. You are drafting a letter to mail to your clients to inform them of this increase, and hopefully to persuade them to keep their business with you. In

*asked by ruel on January 6, 2015* -
## English

Write a 75-150 word essay detailing your previous writing experience. Use the following questions to help you to think about your role as a writer: •In what type of environment do you do your best writing? •How would you characterize your writing? Has

*asked by Kisha on April 9, 2013* -
## calculus

Interference Two identical tuning forks are struck, one a fraction of a second after the other. The sounds produced are modeled by f1(t) = C sin(wt) and f2(t) = C sin(wt + Alpha). The two sound waves interfere to produce a single sound modeled by the sum

*asked by Yasha on April 15, 2012* -
## statistics

every year thousands of students take the SAT'S. Recent trends show that the scores on the verbal section follow an approx. normal distribution with mean of 350 and stand. deviation of 110 A)a student is chosen at random. it is noted that only 8% of

*asked by todd on February 10, 2008* -
## Socials=Ms.Sue

The Reign of Terror was a period of violence in the French Revolution, during which thousands of people were executed as enemies of the revolution. In the Reign of Terror, revolutionary leaders began to turn on each other. The Girondins who favoured the

*asked by Sara on October 22, 2009* -
## chemistry

propanoic acid ch3ch2cooh is a weak acid which has a value for dissociation content of ka = 6.3 x 10^-6 calculate the pH of an aqueous solution of propanoic acid containing 37 g of propanoic acid per litre. i'm stumbled on this one.. i calculated that the

*asked by rick on July 27, 2010* -
## Math 222

This is the second part to my first question A quadratic function Graph the function g(x) = 4 − x2, and state the domain and range. Solution We plot enough points to get the correct shape of the graph. See Fig. 11.10 for the graph. The domain is

*asked by Tika-PLEASE HELP on May 4, 2015* -
## Math 222

This is the second part to my first question A quadratic function Graph the function g(x) = 4 − x2, and state the domain and range. Solution We plot enough points to get the correct shape of the graph. See Fig. 11.10 for the graph. The domain is

*asked by Tika-PLEASE HELP on May 4, 2015* -
## accounting help

Please help Tevin Trader starts a merchandising business on December 1 and enters into three inventory purchases. December 7 10 units @ $6 cost December 14 20 units @ $12 cost December 21 15 units @ $14 cost Trader sells 15 units for $25 each on December

*asked by hello on June 24, 2008* -
## physics

Both drawings show the same square, each of which has a side of length L = 0.86 m. An observer O is stationed at one corner of each square. Two loudspeakers are located at corners of the square, as in either drawing 1 or drawing 2. The speakers produce the

*asked by lamaye on December 8, 2014* -
## physics

Both drawings show the same square, each of which has a side of length L = 0.86 m. An observer O is stationed at one corner of each square. Two loudspeakers are located at corners of the square, as in either drawing 1 or drawing 2. The speakers produce the

*asked by Anonymous on January 28, 2013* -
## chem

a 275mL sample of vapor in equilibrium with 1-propylamine at 25C is removed and dissolved in 0.500L of H20. For 1-propalamine, Kb=3.72*10^-4 and the vapor pressure at 25C is 215 torr. (a)What should be the pH of the aqueous solution? (b) How many mg of

*asked by leanna on March 22, 2011*

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