# Posts by apryl

Total # Posts: 34

**Chemistry**

Consider the following reaction: 4NH3 + 7O2 (arrow) 4NO2 + 6H2O. A) How many moles of NH3 react with 5.64 mol of O2? B)How many moles of NO2 are obtained from 3.27 mol of O2? C) How many moles H2O will be produced from 8.95 g of NH3? D)How many grams of NH3 will be needed to ...

*June 30, 2014*

**English**

c is wrong

*June 16, 2014*

**Math Stats**

Suppose that a random sample of n kernels of popcorn is taken and x of these kernels pop. The buyer wants to be 95% sure that the point estimate for p will be within 0.01.If no preliminary study is done to estimate p, how large a sample should the buyer use? If a preliminary ...

*March 28, 2012*

**Math Stats**

A random sample of 30 plants has a sample standard deviation of 3.4 days for maturity. A 95% confidence interval for the population variance is __ to __days.

*March 28, 2012*

**accounting**

Maria Gonzalez opened a veterinary business in Nashville, Tennessee, on August 1. On August 31, the balance sheet showed Cash $9,000, Accounts Receivable $1,700, Supplies $600, Office Equipment $6,000, Accounts Payable $3,600, and M. Gonzalez, Capital $13,700. During September...

*October 6, 2011*

**accounting**

Lily Company had the following assets and liabilities on the dates indicated. December 31 Total Assets Total Liabilities 2009 $400,000 $250,000 2010 $460,000 $300,000 2011 $590,000 $400,000 Lily began business on January 1, 2009, with an investment of $100,000. Instructions ...

*October 6, 2011*

**accounting**

Presented below are three business transactions. For each transaction indicate whether there is an Increase, a Decrease or No Effect on the assets, the liabilities and the owner's equity. Assets Liabilities Owner's Equity (a) Invested cash in the business. Increase ...

*October 6, 2011*

**accounting**

Jan Nab is the sole owner of Deer Park, a public camping ground near the Lake Mead National Recreation Area. Jan has compiled the following financial information as of December 31, 2010. Revenues during 2010—camping fees $140,000 Market value of equipment $140,000 ...

*October 6, 2011*

**math**

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 40 people. (a) How many would you expect to be between 169 and 181 cm tall? 127 27 (b) How many would you expect to be taller ...

*September 7, 2011*

**algebra/math**

Find the amount of compound interest earned in an account that opens with $24,000, earns 3.5% interest compounded daily, and is held for 10 years. Assume 360 days in a year. (Round your answer to the nearest cent.) $

*September 3, 2011*

**algebra/math**

Find the amount of interest and the monthly payment for the loan. Purchase a car for $42,700 at 2.5% add-on rate for 5 years. (Round your answers to the nearest cent.) $ interest $ per month

*September 3, 2011*

**math**

Find the probability whose odds against are given in the problem. Odds against are 10000 to 1.

*August 28, 2011*

**algebra**

What is the probability of getting a license plate that has a repeated letter or digit if you live in a state that has three numerals followed by five letters followed by one numeral? (Round to the nearest whole percent.)

*August 28, 2011*

**algebra**

The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 167 and a variance of 9. The material is considered defective if the breaking strength is less than 161 pounds. What is the probability that a single, randomly selected piece ...

*August 28, 2011*

**algebra**

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 60 people. (a) How many would you expect to be between 167 and 183 cm tall? (b) How many would you expect to be taller than 170...

*August 28, 2011*

**algebra**

P(C)ifP(C)=2/13 the second one has a line over it

*August 27, 2011*

**algebra**

P (C) if P(C)= P(C) this P(C)has i line above it

*August 27, 2011*

**algebra**

The diameter of an electric cable is normally distributed, with a mean of 0.8 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.82 inch? (Give the answer to four decimal places.)

*August 27, 2011*

**algebra/math**

30

*August 27, 2011*

**algebra**

Find the probability whose odds against are given in the problem. Odds against are 10000 to 1

*August 26, 2011*

**math**

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 40 people. (a) How many would you expect to be between 169 and 181 cm tall? (b) How many would you expect to be taller than 170...

*August 25, 2011*

**math**

The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 4. The material is considered defective if the breaking strength is less than 161 pounds. What is the probability that a single, randomly selected piece ...

*August 24, 2011*

**math**

The diameter of an electric cable is normally distributed, with a mean of 0.8 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.82 inch? (Give the answer to four decimal places.)

*August 24, 2011*

**math**

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 40 people. (a) How many would you expect to be between 169 and 181 cm tall? 1 (b) How many would you expect to be taller than ...

*August 24, 2011*

**Statistics**

.4974

*August 24, 2011*

**Statistics**

For a particular value, this table gives the percent of scores between the mean and the z-value of a normally distributed random variable. What percent of the total population is found between the mean and the z-score, assume z = 2.79

*August 24, 2011*

**math**

Suppose that you want to purchase a home for $450,000 with a 30 year mortgage at 6% interest. Suppose that you can put 40% down. Assume that the monthly cost to finance $1,000 is $6.00. What is the total amount of interest paid on the 30 year loan?

*August 23, 2011*

**Geometery**

i just guessed

*August 23, 2011*

**math**

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.) $3,000 balance, 21% ...

*August 23, 2011*

**math**

A car dealer will sell you a used car for $7,742 with $742 down and payments of $309.93 per month for 24 months. What is the APR?

*August 23, 2011*

**math**

$3,000 at 8% for 30 years (a) Calculate the future amount if the money were invested at simple interest

*August 23, 2011*

**Physics**

A Jet has a liftoff speed of 160 km/hr. What minimum uniform acceleration does this require if the aircraft is to be airborne after a takeoff run of 300m?

*February 5, 2011*

**Statistics**

For a particular value, this table gives the percent of scores between the mean and the z-value of a normally distributed random variable. What percent of the total population is found between the mean and the z-score, assume z = 2.79

*November 2, 2010*

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