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July 23, 2014

July 23, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math-Circles**

I am familiar with finding the vertex of a polynomial but I don't know how to solve this equation. Give the vertex of x^2+9 can you please explain in steps? Thank you.
*Sunday, June 29, 2014 at 2:32pm*

**math**

A game consists of rolling a die and pays off as follows: $5.00 for a 6, $3.00 for a 5, $2.00 for a 4, and no money otherwise. If it costs $2.00 to play, find the expected net winnings for a player of this game.
*Saturday, June 28, 2014 at 11:27pm*

**math**

Suppose a football team's offense which passes 58% of the time (and rushes the rest), averages 6.9 yards per pass and 4.4 yards per rush. In a game with 65 offensive plays, how many yards would you expect them to gain
*Saturday, June 28, 2014 at 9:32pm*

**math**

Suppose that 20% of the population uses Brand X laundry soap. If 9 customers at a supermarket are surveyed, what is the probability that 3 of them use Brand X?
*Saturday, June 28, 2014 at 9:32pm*

**math**

80% of the American population likes pizza. If 8 Americans are chosen at random, find the probability that 6 of them like pizza.
*Saturday, June 28, 2014 at 9:30pm*

**math**

charge account with MasterCard. Her credit limits is $ 1,000, but she not charged that much since opening the account. Nancy hasn't had the time to review her monthly statement promptly as she should, but over the upcoming weekend she plans to catch up on her work. She has...
*Saturday, June 28, 2014 at 6:55pm*

**math**

If d length n breath of a rectangle r increased by 10% then by wt %wiil the area increase?
*Saturday, June 28, 2014 at 4:08am*

**math**

ABCD is a rectangular park of measures (a × b) and let there be a path of uniform width 'c' all around the park. Find the area of the path
*Friday, June 27, 2014 at 10:57pm*

**math**

Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
*Friday, June 27, 2014 at 9:02pm*

**MATH**

5,7,10,15,22, WHAT COMES NEXT?
*Friday, June 27, 2014 at 3:39pm*

**5th math**

1/1*2 + 1/2*3 + 1/3*4 + 1/4*5 + 1/5*6 + 1/6*7 = ? I need help It has to be a fraction too :(
*Friday, June 27, 2014 at 2:02pm*

**Math**

a) In order to express the function y = 1311 x − 4, as a composition of two functions the outer of which is an exponential function, we would let u be equal to the inner function, u = , and then write y as a function of u, as follows: y = . (b) In order to express the ...
*Friday, June 27, 2014 at 2:02pm*

**math**

it is required to find a rational number which is equal to the recurring decimal number 0.327327327...,(a)find the value of 1000x-x (b)hence, express 0.327327327... in the form a/b, where a and b are integers.
*Friday, June 27, 2014 at 1:12pm*

**math**

abby has a ribbon that was 1 meter long..she cut off 25 centimeters..how long is the ribbon now??
*Friday, June 27, 2014 at 12:34pm*

**Math**

The digit sum for 126 is 1+2+6, or 9. The digit sum for 300 is 3+0+0, 0r 3. Find the two consecutive numbers that have digit sums of 36 and 1 Please help - Thank You
*Friday, June 27, 2014 at 12:00pm*

**Math **

What's 25 inch by 12 1/2
*Friday, June 27, 2014 at 11:50am*

**Math**

Redo problem 13 from section 1.8 of your textbook (page 62), but use the functions in the questions below rather than the functions in your textbook: (a) In order to express the function y = 1311 x − 4, as a composition of two functions the outer of which is an ...
*Friday, June 27, 2014 at 11:13am*

**Math**

Choice 1: Payments of $ 2600 now, $ 3200 a year from now, and $ 3880 two years from now. Choice 2: Three yearly payments of $ 3200 starting now. Modification: Interest is compounded continuously instead of annually. (a) If the interest rate on savings were 4.86 %, which would ...
*Friday, June 27, 2014 at 11:12am*

**Math**

A culture of bacteria grows exponentially. It doubles in size every 81 hours. How long will it take to triple from its original size? Answer: hours.
*Friday, June 27, 2014 at 11:12am*

**Math**

Suppose strontium-90 decays at a rate of 2 percent per year. (a) Write the fraction P of strontium remaining, as function of t, measured in years. (Assume that at time t=0 there is 100 % remaining.) Answer: P(t) = (b) Estimate the half-life of strontium. Answer: Hint: Use your...
*Friday, June 27, 2014 at 11:11am*

**math**

what is the integral of sin^5(6x)dx
*Friday, June 27, 2014 at 7:22am*

**math**

find if 6 box have.they each having60,30,20 and 15 what next two
*Friday, June 27, 2014 at 5:51am*

**math**

Share 7m in the ratio 32:3
*Friday, June 27, 2014 at 2:28am*

**math**

Sam bought a new car for $26,500. The car depreciates approximately 13% of its value each year. A) What is the decay factor for the value of this car? b) Write an equation to model the decay value of this car? c) What will the value of the car be in 10 years?
*Friday, June 27, 2014 at 2:15am*

**math**

The sales goal for your store this week $22,682. The sales goal for your store this week last year was $20,128. Your store has averaged 1775 transactions perweek or the last four weeks. What is the percent change in your sales goal from this week last year to this week this year?
*Friday, June 27, 2014 at 12:27am*

**math**

Nancy Tai has recently opened a resolving charge account with MasterCard. Her credit limits is $ 1,000, but she not charged that much since opening the account. Nancy hasn't had the time to review her monthly statement promptly as she should, but over the upcoming weekend ...
*Thursday, June 26, 2014 at 9:06pm*

**math**

Barry heard in his Personal Finance class that he should start investing as soon as possible. He had always thought that it would be smart to start investing after he finishes college and his salary is high enough to pay the bills and to have money left over. He projects that ...
*Thursday, June 26, 2014 at 9:06pm*

**math**

a rectangle's width is one-fifth its length, its perimeter is 60m. find the dimensions of the rectangle
*Thursday, June 26, 2014 at 7:10pm*

**math**

simplify and write scientific notion for the answer. Use the correct number of significant numbers. (2.74*10^5)(2.2*10^-13) The answer that i got was 6.03 * 10^-19
*Thursday, June 26, 2014 at 6:59pm*

**Math **

simplify and write scientific notion for the answer. Use the correct number of significant numbers. 1.9 * 10^-6/ 9.5 *10^4 The answer that i got was 1.6 * 10^-11
*Thursday, June 26, 2014 at 6:17pm*

**Math**

Sara had just rented her first apartment starting December 1 before beginning college in January. The apartment had washer and dryer hook-ups, so Sara wanted to buy the appliances to avoid trips to the Laundromat. The Saturday newspaper had an advertisement for a local ...
*Thursday, June 26, 2014 at 5:50pm*

**Math**

3(t-3)-5(4t-3)=5-7(6t+1)
*Thursday, June 26, 2014 at 4:51pm*

**Math **

Simplify the following exponential expression. 120a^4b^2/-24a^9b^-15
*Thursday, June 26, 2014 at 4:44pm*

**Math **

Jack is 19 years older than Tom. Together their ages 161 years . What are their ages
*Thursday, June 26, 2014 at 4:40pm*

**math**

find the product and write in lowest term. -3/7(14/15)
*Thursday, June 26, 2014 at 4:18pm*

**Math **

a rectangle's width is one-seventh its length, its perimeter is 160m. find the dimensions of the rectangle.
*Thursday, June 26, 2014 at 4:15pm*

**math**

john had 1/3 blue candy, 1/4 orange candy, 1/8 green candy. and the rest was orange. What percentage was red?
*Thursday, June 26, 2014 at 2:12pm*

**math**

A student is chosen at random from a class of 10 boys and 20 girls. What are the odds that a girl is not chosen?
*Thursday, June 26, 2014 at 1:54pm*

**math**

The cost of a regular price ticket to Saint Louis Cardinal baseball game as $60. During the world series, the price increased by 2/5. What did the fans pay?
*Thursday, June 26, 2014 at 11:24am*

**math**

in a certain distribution the mean is 68, with a variance of 16. Using chebyshev's theorem at least what percentage of values will fall between 60 and 76
*Thursday, June 26, 2014 at 10:46am*

**math**

I am five digit number greater than 60 000 but less than 70 000: my ones digit is 1 less than my ten thousands digit. All my digits are the same. The sum of my didits is 23.
*Thursday, June 26, 2014 at 9:53am*

**math psp**

A number is300 when rounded off to the nearest hundred.what is the greatest possible value of the number
*Thursday, June 26, 2014 at 9:48am*

**math**

what is the sum of ten percent of a number and another number in algebraic equation?
*Thursday, June 26, 2014 at 9:29am*

**math**

the millions period has three different odd digits whose sum is 21. all the other digits are zeros. what is the number ? thank you
*Thursday, June 26, 2014 at 9:24am*

**math**

the billions period has three different even digits whose sum is 12. each of the other places is occupied by 8. what is the number? thank you
*Thursday, June 26, 2014 at 9:20am*

**math**

the billions period has three different even digits whose sum is 12. each of the other places is occupied by 8. what is the number?
*Thursday, June 26, 2014 at 9:13am*

**math**

the million period has three different odd digits whose sum is 21.all the other digits are 21. what is the number?
*Thursday, June 26, 2014 at 9:10am*

**math**

A bracelet is made of yellow, green, blue, purple and red beads in that order. the first bead is yellow, and the last bead is blue for each color. what is the maximum number of beads that are in the bracelet if it contains fewer than 90 beads.
*Thursday, June 26, 2014 at 8:12am*

**MATH**

round off to the nearest billions. 1. 10,340,541,555 2. 23,501,300,500
*Thursday, June 26, 2014 at 5:31am*

**math**

swimming pool 50 m x 20 m. how many 10 cmx 10 cm tiles needed for pool?
*Thursday, June 26, 2014 at 5:10am*

**math**

How much is 7.25 kg at $20 per kilogram?
*Thursday, June 26, 2014 at 4:26am*

**math**

A $15,000 debt is to be amortized in 12 equal semiannual payments at an annual interest rate of 11% on the unpaid balance. Construct an amortization table to determine the unpaid balance after two payments have been made.
*Thursday, June 26, 2014 at 1:21am*

**math**

Sara had just rented her first apartment starting December 1 before beginning college in January. The apartment had washer and dryer hook-ups, so Sara wanted to buy the appliances to avoid trips to the Laundromat. The Saturday newspaper had an advertisement for a local ...
*Thursday, June 26, 2014 at 12:42am*

**math**

If you are dealt 6 cards from a shuffled deck of 52 cards, find the probability of getting 3 jacks and 3 aces.
*Wednesday, June 25, 2014 at 9:37pm*

**Math for 7th graders///////**

In a survey 182 people said they liked chocolate ice cream the best. This is 35% of all the people surveyed. How many people were surveyed??? Please tell me the answer and please show your work so I could understand how you figured it out!???
*Wednesday, June 25, 2014 at 5:34pm*

**math**

a photogragh is 20cm long and 15cm wide.the length of a small print of the photograph is 4cm.find the width of the smaller print
*Wednesday, June 25, 2014 at 5:08pm*

**math**

what is the greatest odd number that would be produced when 660 is rounded off to the nearest hundreds?
*Wednesday, June 25, 2014 at 5:06pm*

**Math**

Cape Fear Riverwood is lumber company that specializes in recovering, cutting, and selling wood from trees discarded long ago,even those that have been underwater or buried in the ground for more than 100 year ! Historically, the logging industry used rafts made of wood to ...
*Wednesday, June 25, 2014 at 4:55pm*

**Math**

Cape Fear Riverwood is lumber company that specializes in recovering, cutting, and selling wood from trees discarded long ago,even those that have been underwater or buried in the ground for more than 100 year ! Historically, the logging industry used rafts made of wood to ...
*Wednesday, June 25, 2014 at 4:54pm*

**math**

Find the area bounded by the line y = 1 and the curve y = x^2 - 3. Answer 8/3 16/3 32/3 32
*Wednesday, June 25, 2014 at 3:27pm*

**math**

How do you find the interest and the new balance on these charge accounts? Balance=$253.00, Payment=$12.65, Unpaid Balance=$12.63, Interest Rate per Month=1.6%, Interest= , New Balance=
*Wednesday, June 25, 2014 at 1:30pm*

**math**

the sum of 3 integer is 15 if two of the integers (-11) and 7 find the third integer
*Wednesday, June 25, 2014 at 11:49am*

**math**

The sides of the triangle are on the of x+y+6=0, x+2y-4=0, 3x+y+2=0. Find the vertices of the triangle
*Wednesday, June 25, 2014 at 9:41am*

**math**

round off 450 less that 295 to the nearest hundreds?
*Wednesday, June 25, 2014 at 6:43am*

**math**

what is the greatest odd number that would be produced when 750 is rounded off to the nearest hundreds?
*Wednesday, June 25, 2014 at 6:41am*

**Math**

Score Skateboard Company is a small firm that designs and manufactures skateboards for high school and college students who want effective, fast transportation around campus. Score has two employees who receive $1,100 gross pay per semimonthly pay period and four employees who...
*Wednesday, June 25, 2014 at 12:22am*

**Math**

Vince earned $32,876 last year. The state unemployment tax paid by his employer is 5.4% of the first $7,000 earned in a year. How much SUTA tax must Vince’s employer pay for him? How much FUTA tax must Vince’s employer pay?
*Wednesday, June 25, 2014 at 12:21am*

**Math**

What is the unit rate in miles per gallon if 140 miles are traveled on 14 gallons of gas? The unit rate is ____ mi/g.
*Wednesday, June 25, 2014 at 12:02am*

**Math**

The length of a rectangle is 5ft longer than twice the width. If the perimeter is 106ft, find the length and the width of the rectangle.
*Tuesday, June 24, 2014 at 9:41pm*

**math-Ms Sue please help**

What is the monthly payment on a 25-year loan of $73,700 if the annual interest rate is 10%?
*Tuesday, June 24, 2014 at 8:26pm*

**math**

What is the monthly payment on a 25-year loan of $73,700 if the annual interest rate is 10%?
*Tuesday, June 24, 2014 at 7:11pm*

**math**

A farmer buys a new tractor for $38,000. He makes a down payment of $10,000 and finances the balance at 8.5% APR over 48 months. Before making the 12th payment, the farmer decides to pay the remaining balance on the loan. How much interest will the farmer save (use the ...
*Tuesday, June 24, 2014 at 7:10pm*

**math**

A newlywed couple bought a washer and dryer for $800. They paid 5% down and then paid 12 monthly payments of $65.41. Determine the APR of the loan to the nearest tenth of a percent.
*Tuesday, June 24, 2014 at 7:10pm*

**math**

A carpenter spent $4500 to purchase a table saw , a circular saw, and a panel saw. He paid 5% down and financed the balance with a 30-month fixed installment loan with an APR of 5.0%. Determine the total finance charge and monthly payment for the loan.
*Tuesday, June 24, 2014 at 7:10pm*

**math**

James has set up an ordinary annuity to save for his retirement in 18 years. If his monthly payments are $225 and the annuity has an annual interest rate of 8% compounded monthly, what will be the value of the annuity when he retires?
*Tuesday, June 24, 2014 at 7:09pm*

**math**

Barbara knows that she will need to buy a new car in 3 years. The car will cost $15,000 by then. How much should she invest now at 8%, compounded quarterly, so that she will have enough to buy a new car?
*Tuesday, June 24, 2014 at 7:09pm*

**math**

John Lee's savings account has a balance of $4494. After 3 years, what will the amount of interest be at 5% compounded semiannually?
*Tuesday, June 24, 2014 at 7:09pm*

**math**

Allan borrowed $4800 from his father to buy a car. He repaid him after 9 months with interest of 5% per year. Find the total amount he repaid.
*Tuesday, June 24, 2014 at 7:08pm*

**math**

All 30 of the students in a mathematics class attended class on Monday. On Tuesday only 22 students attended. What was the percent decrease?
*Tuesday, June 24, 2014 at 7:08pm*

**Math**

Jane is going to walk once around the edge of a rectangular park. The park is 200 yards long and 300 feet wide. How far will Jane walk?
*Tuesday, June 24, 2014 at 6:29pm*

**English**

Choose the sentence that is written in active voice. A. The math problems were given to the students. B. The students were taking a math test. C. The math test was given by the instructor. D. The math test grades were given to the students. B
*Tuesday, June 24, 2014 at 5:41pm*

**Math**

Lake Michigan Credit Union finances auto loans for its members. Each loan can be classified into one of four categories: paid in full, good standing, poor standing (with one or more missing payments), and delinquent (where the debt is sold to a collection agency). Past records...
*Tuesday, June 24, 2014 at 5:30pm*

**math i have no idea help please**

DVDs are on sale for 12.50 for a set of two. You have $35. You can split a set and buy just one disc for the same price per disc as the set. how many disc can you buy?
*Tuesday, June 24, 2014 at 4:32pm*

**math**

coppertone sport ultra sweatproof-spf 15 dry lotion contains 1.2 mg of otylmethoxycinnamate per fluid oz. how many micrograms of this chemical would be in 1/2 pint of the sunblock lotion?
*Tuesday, June 24, 2014 at 3:07pm*

**math**

If I get a 2% raise and it equals $.23, then how what was my hourly pay before the raise?
*Tuesday, June 24, 2014 at 1:46pm*

**math**

Using the sale price that is given, find the regular price for each item at a 20%- off sale. radio: $13.72
*Tuesday, June 24, 2014 at 1:41pm*

**math**

a teacher has 25 kids in her class. she has a bowl containing 25 chocolates. she wants to divide the 25 chocolates to the kids, in such a way that one chocolate should remain in her bowl
*Tuesday, June 24, 2014 at 12:43pm*

**Math**

Your program has a proposed RDT&E-funded project scheduled to start in January 2005 which is expected to take 16 months to complete. The project is expected to cost a total of $16 million (then-year dollars), with cost expected to be incurred at a rate of $1 million per month...
*Tuesday, June 24, 2014 at 11:33am*

**math**

A steel post is 6 ft. long and 6" thick in diameter. If a cubic foot of steel weighs 490 lb., how much does the rod weigh (to the nearest pound)?
*Tuesday, June 24, 2014 at 11:21am*

**math**

express 0.003522....in p/q form
*Tuesday, June 24, 2014 at 10:59am*

**math**

2 girls plus 1 guy equals
*Tuesday, June 24, 2014 at 10:03am*

**math**

Paulo has $6 to spend. A sundae costs $3.25 plus $0.65 per topping. Write and solve an inequality to find how many toppings he can order.
*Tuesday, June 24, 2014 at 10:01am*

**math**

What is 84:112 as fraction in simplest form?
*Tuesday, June 24, 2014 at 9:25am*

**MATH**

Olympic volleyball player Bev Oden averaged 3.42 "kills" (spikes that end a rally) per game. Predict her number of kills in a 5 game match.
*Tuesday, June 24, 2014 at 8:35am*

**MATH**

Carol drove 720 km in 9 hours. What was her rate in km/hr?
*Tuesday, June 24, 2014 at 8:29am*

**MATH**

Blake earned $199.20 for 24 hours of work. How much would he be paid for 15 hours of work?
*Tuesday, June 24, 2014 at 8:22am*

**Math**

8x8x8x8 base 2
*Tuesday, June 24, 2014 at 5:11am*

**math**

Is 1+1=10+101
*Tuesday, June 24, 2014 at 4:48am*

**math**

Matt is working for 75 points. If he answered 16 of 31 questions correctly, how many of the 75 points did he earn?
*Tuesday, June 24, 2014 at 2:33am*

**Math**

Give the standard "f(x)" definition of the function. Subtract one and then take the absolute value My answer : f(x)= |x|-1 is it correct?
*Tuesday, June 24, 2014 at 1:46am*

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