Friday

September 4, 2015
Number of results: 109,424

**Math**

The Maple street Youth Club took 22 people to the ball game. Three people rode to the game in each car, and seven people took the bus. On the way home, four people rode in each car, and the rest took the bus. How many people took the bus on the way home?
*December 15, 2009 by Tao*

**finance**

Peyton’s Colt Farm issued a 30-year, 7.2 percent semiannual bond 6 years ago. The bond currently sells for 87.5 percent of its face value. The company’s tax rate is 38 percent. The book value of the debt issue is $103 million. In addition, the company has a second debt issue, ...
*November 20, 2012 by juli*

**Stat college**

It is estimated that 17% of americans have blue eyes. A random sample of 9 americans is selected. Find the probability that the sample includes exactly 2 people with blue eyes. Find the probability that the sample includes at most 2 people with blue eyes. Find the mean number ...
*May 6, 2014 by redd*

**science**

During the month of November, it rained on 12 of the 30 days. It also snowed on 3 days. On what percent did it rain? On what percent of days did it snow?
*January 23, 2008 by shawn*

**Math**

My question is: WRite the percent as a fraction and as a decimal. 0.06% I don't know how many places I need to move that decimal to convert this percent into a decimal.
*May 11, 2011 by Erika*

**Statistics**

. Suppose that about 20% of those called will find an excuse (work, poor health, travel out of town, etc.) to avoid jury duty. If 14 people are called for jury duty, what is the probability that all 14 will be available to serve on the jury? Round your answer to three decimal ...
*June 25, 2010 by Jacob*

**statistics**

Suppose that about 20% of those called will find an excuse (work, poor health, travel out of town, etc.) to avoid jury duty. If 14 people are called for jury duty, what is the probability that all 14 will be available to serve on the jury? Round your answer to three decimal ...
*August 20, 2010 by karen*

**Physics**

The mass on a pendulum is given 20 J of potential energy. If the mass is 2 kg, how high, in meters, was it raised? Please round your answer to the nearest whole number and use g = 10 m/s2
*March 3, 2014 by Chrissy Gregory*

**Algebra**

A small software company invests $30,000 to produce a software package that will sell for $64.95. Each unit can be produced for $42.25. (Round your answers to the nearest whole number.)
*November 24, 2014 by ada*

**statistics**

A committee of three people is to be formed. The three people will be selected from a list of five possible committee members. A simple random sample of three people is taken, without replacement, from the group of five people. Using the letters A, B, C, D, E to represent the ...
*July 16, 2014 by kenny*

**Math**

There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class passed the math test with a B. What percent of the students in the class passed the test? ****** This is how I slove the problem, but I stuck in the ...
*March 1, 2012 by Grace*

**Pre-Algebra**

The ratio of cars to people in Australia is 350 to 1000. Write this ratio as a fraction in simplest form.
*March 2, 2008 by Brandon Mirza*

**math**

one third of the people in a convention room are seated in three-fourths of the chairs. THe rest of the people in the room decide to stand. If there are 8 empty chairs, how many people are standing? Please fully explain because i am sooo confused!!!
*April 4, 2012 by Audrey*

**Finance**

Clanton Company is financed 75 percent by equity and 25 percent by debt. If the firm expects to earn $30 million in net income next year and retain 40% of it, how large can the capital budget be before common stock must be sold?
*August 13, 2011 by Statistics*

**math**

if you have 5 candy bars and have to share them with 20 people but 1/4 of the people gave up 50% of the total number of people. what % of the people had no candy? how many of the total had more than their share? How much was the original share every one suppose to get?
*September 8, 2009 by monique*

**Psychology**

1. To sustain a learned response in someone, it is best for you to reinforce it: a. continuously b. intermittently c. intermittenly at first, then continuously d. at the first sign of spontaneous recovery. I chose B. 2. In his famous obedience study, Stanley Milgram set out to...
*February 20, 2012 by Terry*

**Math 11**

I am really stuck at these 4 questions. Pls help: a) Two spheres of the same density have a ratio of 9 to 16 inches in surface area, If the small sphere weighs 15 kg what does the sphere weighs. Answer to the nearest 10th of KG. b) The ratio of the volume of two cubes is 216 ...
*April 7, 2014 by MK*

**english**

Thesis statements:People are born innocent and human nature is to be good. @. A strong belief in GOd helps people to overcome many difficult moments in life. 3.Innocence,once lost can never be returned. The need to Survive is basic to all people regardless of their race or ...
*September 2, 2007 by ko*

**Chemistry - Combustion Method**

This question is confusing me the way its presented and also is relating it to the combustion method that is used to analyze carbon and hydrogen. It can be used to give percent N. It says a sample of a compound that weighs 8.75 mg gave 1.59 mL of N2 at 25 degrees Celsius and ...
*May 1, 2010 by Shinu*

**chemistry**

I have no clue, please help and explain! =) Find the pH of a 0.150 M solution of a weak monoprotic acid having Ka=1.2×10−5. Find the percent dissociation of this solution. Find the pH of a 0.150 M solution of a weak monoprotic acid having Ka=1.4×10−3. Find the ...
*December 6, 2010 by Lisa, Help needed!*

**Calculus Help?**

I have no idea where to start? A survey of one thousand people found that 70% of the people have a CD player, 85% have a telephone, and 45.2% have a computer. At least how many people have all three objects?
*October 23, 2007 by Matt*

**Math**

Using the formula for the surface area of a SPHERE: Use Pi = 3.14 If the diameter of a sphere is 8 feet, find the surface area (round to the nearest square foot) 201 sq ft If a quart of paint covers 75 square feet, how many quarts of paint are needed to paint the surface? ...
*May 16, 2008 by Mike*

**algebra**

A $15,000 T-bill is purchased at a 3.85% discount rate for 16 weeks. Find (a) the purchase price of the T-bill, (b) the maturity value, (c) the interest earned, (d) the effective rate of interest to the nearest hundredth of a percent.
*August 21, 2012 by Felicia*

**Math **

Out of a group of (50,000) births, the number of people, f(x), surviving to age (x) is modeled by the function f(x)=5000 square root 100-x. To what age will (20,000) people in the group survive?
*January 5, 2011 by Marie*

**Ochem**

A student needed to determine the percent composition of a mixture that contained fluorene and benzoic acid. The student took 283 mg of the mixture and used the extraction method to separate the components. Then both compounds were recrystallized and dried. The experiment ...
*October 19, 2011 by Lindsay*

**Chemistry**

An aqueous solution with a density of 0.998 g/ml at 20 degrees Celsius is prepared by dissolving 12.8 mL of CH3CH2CH2OH (p=0.803 g/mL) in enough water to make 75.0 mL of solution calculate the percent (w/w), percent (w/v), parts per million, and molality?
*October 2, 2011 by Jessica*

**math**

On his last credit card bill, Frank paid a variable finance rate of 1.5 percent on the first $500, and one percent on any amount above $500. How much did he pay if the unpaid balance was $741.23?
*February 9, 2012 by help please help!!!*

**business**

You want to have $6 million in real dollars in an account when you retire in 40 years. The nominal return on your investment is 13 percent and the inflation rate is 5.1 percent. What real amount must you deposit each year to achieve your goal?
*October 13, 2012 by nicky*

**business**

You want to have $6 million in real dollars in an account when you retire in 40 years. The nominal return on your investment is 13 percent and the inflation rate is 5.1 percent. What real amount must you deposit each year to achieve your goal?
*October 13, 2012 by nicky*

**Finance**

You want to have $5 million in real dollars in an account when you retire in 40 years. The nominal return on your investment is 12 percent and the inflation rate is 5 percent. What real amount must you deposit each year to achieve your goal?
*October 19, 2014 by Xia*

**Calculus**

How many seconds longer is 2 percent of an hour than 30 percent of a minute? is it 30 seconds
*November 9, 2007 by Roger*

**Math**

I dont understand how to do this problem if someone can please help me to figure it out thank you. A survey about the student government program at a school finds that of 245 students: -218 students like the program -27 students think the program is uncessary If a circle graph...
*March 31, 2015 by Nikita *

**COM 155**

Write 2 paragraphs about how interest rates affect our purchasing descisions. Identify the topic sentence by underlining it. Interest rates is the price that the lender sets for the borrower to pay as a fee to borrow money. Depending on whether or not interest rates are high ...
*May 27, 2011 by Richelle*

**Math**

A bus tour company charges a flat fee for renting out the bus, and an additional amount for each person. If the price is quoted at $382 for 12 people and $430 for 16 people, what is the flat fee?
*July 4, 2014 by Jason*

**chemistry**

Halogen acid gas evolution the level of HCL evolved percent by weight .Test result 2mg/g the sample weight 0.65 gram calculat the percent by weight.
*December 18, 2010 by Ram khilavan*

**Math**

Find the area for the circle (use 3.14 for pi). Show your work. Round to the nearest tenth. the radius is 23 yd 22. Find the circumference of the circle (use 3.14 for pi). Show your work. Round to the nearest tenth. the raduis is 23 yd
*January 31, 2013 by Jman*

**statistics**

Chicken Delight claims that 91 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 70 orders revealed that 60 were delivered within the promised time. At the .02 significance level, can we conclude that less than 91 percent of the...
*November 21, 2011 by sherry*

**statistics**

Chicken Delight claims that 86 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 80 orders revealed that 65 were delivered within the promised time. At the .10 significance level, can we conclude that less than 86 percent of the...
*February 17, 2012 by Aracely*

**STAT**

it is estimated that 17% of americans have blue eyes. A random sample of 9 americans is selected. Find the probability that the sample includes exactly 2 people with blue eyes. Find the probability that the sample includes at most 2 people with blue eyes. Find the mean number ...
*May 6, 2014 by Anonymous*

**Statistics**

Consider the trash bag problem. Suppose that an independent laboratory has tested trash bags and has found that no 30-gallon bags that are currently on the market have a mean breaking strength of 50 pounds or more. On the basis of these results, the producer of the new, ...
*August 31, 2009 by Amy*

**Germany and China**

I have to find out how people in Germany AND China get their drivers license..as it what process do they have to go through Thanks Thank you for using the Jiskha Homework Help Forum. The first links will be about Germany. If you have an American license, and are in Germany for...
*March 27, 2007 by Amy*

**math**

A 9 percent salt-water solution is mixed with 4 ounces of an 18 percent salt-water solution in order to obtain a 15 percent salt-water solution. How much of the first solution should be used? 1 ounce 2 ounces 3 ounces 4 ounces Explain your answer.
*August 31, 2010 by M.A.*

**geometry**

There are 2 red cars and 3 blue cars. The 5 cars contain a total of 12 people. No car has more than 4 people. Every car has at least 1 person. The only cars with the same number of people are the red cars. How many people are in 1 red car?
*April 30, 2012 by Anonymous*

**Statistics**

Given the following information, determine the 68.3 percent, 95.5 percent, and 99.7 percent confidence intervals. overbar above X equals 4.33 comma SE sub m equals 3 I've looked at the table as recommended. I just do not understand this at all. I'm really lost on this and ...
*December 5, 2013 by Anonymous Do not understand*

**math**

information: (C)Charges $750 for up to 30 people. (P)Plus $20 per person for each extra person. question: C dollars is the cost of a party for P people.Find formula that gives C in terms of P.
*August 21, 2014 by stephanie*

**Math**

Could someone work this question out so I understand it. Thanks The marginal price dp/dx at x units of demand per week is proportional to the price p. There is no weekly demand at a price of $100 per unit [p(0)=100], and there is a weekly demand of 8 units at the price of $60....
*April 29, 2011 by Jules*

**Math**

Could someone work this question out so I understand it. Thanks The marginal price dp/dx at x units of demand per week is proportional to the price p. There is no weekly demand at a price of $100 per unit [p(0)=100], and there is a weekly demand of 8 units at the price of $60....
*April 29, 2011 by Jules*

**Life Science**

Post a 200- to 300- word response to the following questions: · What role, if any, do you think people should play in preserving those regions threatened by human encroachment? · How should the interests of competing groups be balanced? · Example: Drilling in the Arctic – ...
*April 20, 2009 by Hannah*

**English**

Had to correct sentences so the parallel ideas are expressed 1. Is it true that Superman could leap tall buildings, run faster than a locomotive, and those bullets would bounce off his skin? 2. To celebrate the canned pork product called Spam, we attended the Texas Spamarama ...
*May 7, 2011 by Amor*

**english**

We have to find the right linking verb. 1.) It was she/her who was the director. She 2.) The owner of the recording equipment was me/I. I 3.) The engineer helping with the recording was her/she. She 4.) The person testing how the microphone sounded was I/me. I 5.) The ...
*April 20, 2015 by Ben*

**Mathematics**

A rectangular block of lead with dimension 43 cm x 53 cm x 63 cm is melted to mould spherical balls of 3 cm radius. How many balls are made? (Round your answer to the nearest whole number and take Pi as 3.14)
*February 29, 2012 by Josh*

**math**

Of the 50 state in the united state, 8 states have a population of one million people or fewer.Make a plan and write an addition equation to show that the sum of the state with more than one million people and the states whith one million people or fewer is equal to 50. Then ...
*November 16, 2011 by Anonymous*

**percent**

how to change percentage to numbers Move the percent sign two places to the left. Add a decimal point there. Actually, don't move the percent sign at all. Get rid of the percent sign. Think about what percent means: Per (each) Cent (the prefix meaning 100. Century is 100 years...
*February 8, 2007 by carmen*

**Math..please help!**

During a recent telethon, people pledged $25 or $50. Twice as many people pledged $25 as $50. Altogether, $18,000 was pledged. How many people pledged $25?
*November 6, 2007 by jan*

**Math**

In how many ways can a group of 10 people be divided into: a. two groups consisting of 7 and 3 people? b. three groups consisting of 4, 3, and 2 people?
*February 22, 2013 by Therese*

**math**

3/5 of the people at a funfair were children. 3/4 of the remaining people were men. There were 140 more children than women. How many people went to the funfair?
*March 14, 2015 by jessi*

**math**

3/5 of the people at a funfair were children. 3/4 of the remaining people were men. There were 140 more children than women. How many people went to the funfair?
*March 20, 2015 by silvia*

**Finance**

A CBS bond with a par value of $1,000, an interest rate of 7.625 percent, and a maturity of 10 years The bond is selling for $986. The required rates of return is 6 percent for the bond.
*May 24, 2010 by Britt*

**5th grade math**

A group of students went to their favorite restaurant after the football game one Friday night. They all ordered from the menu and forgot to tell the server to give them separate checks. The bill totaled $27, including the tip. They decided to split the bill evenly, and they ...
*April 19, 2012 by Leann*

**precalculas**

the amount of bacteria in a petri dish increased by a percent change of 12% each hour over a period of 15 hours. a. find the growth factor for 1 hour? b. by what total percent did the bacteria change during this 15- hour time period.? c. how long will it take for the bacteria ...
*March 1, 2011 by katrina*

**PE**

i need help with a 5 page report on heath What is your topic? We'll be glad to help you when we know what you want write about. I want to try out volleyball but my grades are bad! But people say that sports make people do better in school. Do you that it will help? Playing ...
*August 10, 2007 by jennifer*

**probs & stats**

1. A study of 40 people found that they could do on the average15 pull ups with a standard deviation of .6. Find the 99% confidence interval for the mean of the population. 2. A study of 50 pizza delivery workers found that they could make 6 deliveries per hour with a standard...
*May 11, 2015 by adrenning*

**PERSONAL FINANCE**

a SAVER HAS A $1000 ON DEPOSIT IN AN ACCOUNT EARNING 3 PERCENT INTEREST. dURING THIS YEAR THE INFLATION RATE WAS 5 PERCENT. AFTER ONE YEAR EHAT IS THE BUYING POWER OF THE AMOUNT IN SAVINGS FOR THAT PERSON?
*November 16, 2009 by lALA*

**financial**

a company has determined that its opitmal capital structure consists of 40 percent debt and 60 percent equity. given the following information, calculate the firms weigted average cost of capital rd=6% tax rate=40% p0=$25 growth=0% do=$2.00
*February 17, 2010 by Anonymous*

**Statistics**

1. A study of 40 people found that they could do on the average15 pull ups with a standard deviation of .6. Find the 99% confidence interval for the mean of the population. 2. A study of 50 pizza delivery workers found that they could make 6 deliveries per hour with a standard...
*May 9, 2013 by Anonymous*

**math **

21.a. which of these number is a multiple of 10? A 35 B 40 C 45 D 101 b. how can you fine the answer for part a just by looking? 22.a. A dime is what fraction of a dollar? b. A dime is what percent of a dollar? 23. washington school cost about $12,350,000 to build. use words ...
*November 4, 2010 by jojo*

**math**

On the 1st day the movie opened 35 people saw it. On the 2nd day 16 more people came than on the 1st day so that 86 people had seen the movie after the second day. On the 3rd day 67 people came, 16 more than on the 2nd day, If each day 16 more people saw the movie than the day...
*January 31, 2011 by Rusty*

**prealgebra**

can you please help me and help me solve this and show work: Identify the percent of change as an increase or a decrease. Then find the percent of change. #1.) Original:45 New:30 Please help i dont understand how to solve and show work
*February 27, 2012 by vick*

**Grade 12 Calculus**

For an outdoor concert, a ticket price of $30 typically attracts 5000 people. For each $1 increase in the ticket price, 100 fewer people will attend. The revenue, R, is the product of the number of people attending and the price per ticket. a) Let x represent the number of $1 ...
*March 25, 2014 by Q*

**Calculus**

q = f(p) = 10300e^−0.34p a) Find the number of products sold when the price of the product is $5. (Round your answer to the nearest whole number.) Number of products sold: b) Find a formula for the rate of change in the number of products sold when the price is p dollars...
*February 27, 2014 by Sam*

**language arts**

1. The word centuries contains the Latin root cent-, meaning "hundred." Which of the following words contains the same root? center accent decent percent 2. The word mark is an Anglo-Saxon word meaning "boundary." Which of the following words does NOT contain this root? market...
*May 13, 2013 by Delilah*

**Math**

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 80 people. (a) How many would you expect to be between 158 and 172 cm tall
*August 24, 2011 by Ann*

**statistics**

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 80 people. (a) How many would you expect to be between 158 and 172 cm tall?
*March 15, 2012 by Shelly*

**Math/statistics**

Thirty five percent of adult americans are regular voters. A random sample of 250 adults in a medium size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on the results. ...
*November 23, 2012 by Tessa*

**GOVERNMENT HELP**

Under the original Constitution, which was the only part of the national government directly elected by the people? Which of the three branches do you think was the only one elected directly by the people? executive? House of representatives elected by the people with no ...
*October 22, 2006 by Suzanne*

**math**

Could u help me with this question. The number, N, of people who have heard a rumor spread by mass media at time, t, in days is modelled by N (t) = a / 1+ be^ -kt a. If 50 people have heard the rumour initially and 300,000 people hear the rumour eventually, find a and b b. If ...
*May 9, 2007 by sean*

**Math**

Tell me how to figure out these probabilities In how many different orders can 9 people stand in line? In how many ways can 4 people be seated in a row of 12 chairs? Thank you For the first problem, we have nine people and want to arrange them in a line. For the first position...
*September 21, 2006 by Haley*

**Chemistry**

A(g) + B(g) <=> AB(g) At a given temperature 1.0 mole of A and 1.0 mole of B are placed in the 1.0 litre vessel and allowed to reach equilibrium. Analysis revealed that the equilibrium concenration of AB was 0.40 molar. What percent of A had been converted to products? I...
*May 16, 2007 by Janna*

**calculating statistical data**

what is the percent of variance for each item listed in the him department budget shown in the table below? round to two decimal points.
*July 23, 2014 by marcus*

**Algebra**

Mina's catering service is organizing a formal dinner for 280 people.The hall has two kinds of tables, one that seats 4 people and one that seats 10 people.The hall can contain up to a total of 52 tables.Write and graph a system of inequalities that can be used to determine ...
*October 13, 2014 by Keanna*

**math**

13 out of 25 write this percent notation
*February 9, 2009 by Grace*

**math**

waht is the percent and decimal of 9 out of 50
*November 16, 2010 by T.L.C*

**math**

your school is planning to bring 193 people to a competition at another school. there are eight drivers avialable and 2 types of vehicles buses and minivans. the school buses seat 51 people each, and thw minivan 8 people each.
*January 11, 2009 by Anonymous*

**statistics**

Question: The table below shows the drinking habits of adult men and women. Men Women Total Non-Drinker 387 421 808 Occasional Drinker 45 46 91 Regular Drinker 90 69 159 Heavy Drinker 37 34 71 Total 559 570 1129 If one of the 1,129 people is randomly chosen, what is the ...
*March 16, 2010 by Looking for someone to check my answer*

**Maths**

3. Ohm’s law states that the current flowing in a circuit varies directly as the applied voltage and inversely as the resistance. In an experiment, the resistance was increased by triple the percentage by which the voltage was increased. A student calculated the percent change...
*November 17, 2012 by David*

**math**

at breakfast buffet, 93 people chose coffee for there beverage and 47 people choe juice. Twenty-five people chose both. Each person chose at least one of these beverages. how many visted the buffet
*November 11, 2010 by alexi*

**statistics**

In 2006, the General Social Survey asked, "Do you see yourself as someone that tends to be lazy?" For this question, 20 people said that they definitely did out of 1513 randomly selected people. What is the 95% confidence interval for the proportion of all Americans that ...
*October 27, 2011 by jessica*

**math**

the smallest number of people in a room where the probability of two of them having the same birthday is at least 50 percent. Answer is between 1 and 31. This is a classic problem given in probability classes. There are plenty of sites which will give and explain the answer, ...
*October 25, 2006 by christina*

**math**

there were 19 hamburgurgers fo nine people on a picnic. how many whole hamburgers were there for each person if they were divided equally?
*October 26, 2011 by iris*

**math**

Find the lateral area of a cone with a radius of 7 ft. and a slant height of 13 ft. Use 3.14 for π and round to the nearest whole number. 439 ft2 324 ft2 572 ft2 286 ft2*** Find the volume of a square pyramid with a base length of 9 cm and a height of 4 cm. 324 cm3 108 ...
*March 15, 2014 by Princess Anna*

**math modeling**

At 3a.m., there is a colony of 736 bacteria, and it is growing at a continuous hourly rate of 10.77%. How many bacteria are there at 7p.m.? Round your answer to the nearest whole number of bacteria.
*October 25, 2011 by math *

**ECON!**

Happiness Is ... Being Old, Male and Republican Americans grow happier as they age, surveys find. And a new Pew Research Center survey shows the tendency is holding up as the economy tanks. Happiness is a complex thing. Past studies have found that happiness is partly ...
*May 18, 2009 by Anonymous*

**Math**

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,200 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the nearest cent.) (b) Find ...
*June 8, 2013 by Ronald*

**algebra**

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,500 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the nearest cent.) (b) Find ...
*May 17, 2014 by Mary Ann *

**Alegbra**

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,900 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the nearest cent.) $ (b) Find ...
*August 10, 2014 by HOLLY*

**Math**

The table shows the cost of a ski rental package for a given number of people. Using the rate of change, what is the cost for 13 people? People Cost ($) 2 70 3 105 4 140 5 175 There are 4 answer choices - 560, 440, 520, 480. I got 455. Am I wrong?
*January 5, 2012 by Jane*

**FINANCE**

Answer both questions A).The treasurer of a German firm has €5 million to invest for three months. The annual interest rate in the Germany is 4 percent: the interest rate in the United Kingdom is 2 percent. The spot rate of exchange is €1.1/£ and the three-month forward rate ...
*August 5, 2010 by RICKY*

**chemistry**

The percentage of phosphourus in a detergent product may be determined by sample treatment including the precipitation of magnesium ammonium phosphate MgNH4PO4*6H2O (MW=245.41), using an excess of both magnesium and ammonium ions. The separated ans washed precipitate is then ...
*September 12, 2006 by bria*

**Math**

Scores on a test are approximately normally distributed with a men of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students. What is the bottom cutoff for an A grade? Please round answer to the nearest whole number
*December 11, 2010 by Deb*

**math**

1. Which set represents a Pythagorean triple? A:2,5,6 B:6,8,10 C:8,8,128 D:8,10,256 2. What is the hypotenuse of a right triangle if the legs are each 20 inches long? Round to the nearest whole number. A:28 B:29 C:30 D:31 I think the first ones B, and the second one is C
*April 16, 2013 by jake*