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September 21, 2014

September 21, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

how can you change 1/2 to a mixed number?
*Tuesday, July 1, 2014 at 3:23pm*

**math**

what is 6 divided by 8.4
*Tuesday, July 1, 2014 at 3:21pm*

**Math**

In a triangle ABC, PQ is the midpoint of AB and AC. PQ = 2cm, BC =3cm. The area of trapezium PQCB = 10cm^2. If the area of triangle APQ = xcm^2. Calculate the value of x.
*Tuesday, July 1, 2014 at 2:45pm*

**math**

If someone gave u a tonnie,three quarters,a nickel,two dimes and a penny.how much money did they give u
*Tuesday, July 1, 2014 at 11:19am*

**math**

A loan has a due date of December 20. If it is made on September 19, for how many days is the loan?
*Tuesday, July 1, 2014 at 10:29am*

**Math**

use 100 square grids to shade 1.5 and what fraction would remain un shaded
*Tuesday, July 1, 2014 at 10:16am*

**Math **

Find the intersection of two lines. i have the answer just please tell me how it was made 4x-3y-4=0 , 4x+2y+5=0 -5y/-5 = 9/-5 y= 9/5 4x-3(-9/5)-4=0 5(4x+27/5-4=0) 20x+27-20=0 20x+7=0 20x/20=-7/20 x=-7/20 (-7/20, -9/5
*Tuesday, July 1, 2014 at 10:03am*

**math**

an elevator is moving up at a rate of one meter per second. the elevator is now at the street level. when was the elevator five meters below street level? when will the elevator be 10 meters above street level?
*Tuesday, July 1, 2014 at 9:18am*

**math**

the temperature has been changing at a rate of-2 degrees fareinheit per hour and is predicted to continue at this rate. The temperature now is 0 degree fareinheit. what was the temperature 3 hours ago? what temperature can be predicted 5 hrs. from now?
*Tuesday, July 1, 2014 at 9:16am*

**Math**

twelve boys spent 420 for their electrical project. what is the share of each boy if they divided the expenses equally?
*Tuesday, July 1, 2014 at 8:45am*

**spelling**

how can i learn math fast.can you show me
*Tuesday, July 1, 2014 at 8:23am*

**Math**

4/3 multiply by 0 multiply by 1/2
*Tuesday, July 1, 2014 at 6:37am*

**math**

An isosceles triangle has a base 9.6 units long. If the congruent side lengths have measures to the first decimal place, what is the shortest possible length of the sides?
*Tuesday, July 1, 2014 at 1:53am*

**math**

The midpoint of two points is (6,2). If one of the points is (3,5), find the other point. x_m = (x_1 + x_2)/2 6 = (3 + x_2) / 2 = 3 + x_2 x_2 = y_m = (y_1 + y_2)/2 2 = (5 + y_2) / 2 = 5 + y_2 y_2 = Endpoint (x_2, y_2)= ( , )
*Tuesday, July 1, 2014 at 12:30am*

**Math**

A dress is on sale for a 15% discount, meaning 85% of the price remains. If the sale price of the dress is $51, then the original price of the dress was $.
*Monday, June 30, 2014 at 10:33pm*

**math**

A balloon is released and flies straight up for 4 miles, and then the wind blows it west for 4 miles. Find the distance between the balloon and the site where it was released.
*Monday, June 30, 2014 at 9:20pm*

**10 gr math**

Plug in the information into the Distance Formula: D = sqrt((x_2 - x_1)^2 +(y_2 - y_1)^2)
*Monday, June 30, 2014 at 9:18pm*

**math**

Find the distance between the following points: (-2,4),(3,2)
*Monday, June 30, 2014 at 9:17pm*

**Math**

In a hardware store the ratio of shovels to rakes is 3:5. If there are 10 more rakes than shovels, how many rakes are there in the hardware store? I know shovels = r-10 but don't know where to go from there?
*Monday, June 30, 2014 at 8:10pm*

**Math**

3/4 multiply by 0 multiply by 1/2
*Monday, June 30, 2014 at 7:41pm*

**math**

Subtract five and two-fifths minus two and nine-tenths. Justify your steps.
*Monday, June 30, 2014 at 7:31pm*

**Math**

1. Determine the equation of the right bisector of the line segment E(2, 6) and F(4, -2). Draw the diagram. 2. Given three points D(2, 5) E(-2, -3) and F(4, -6) determine whether or not the line through D and E is perpendicular to the line through E and F. 3. A triangle is ...
*Monday, June 30, 2014 at 6:47pm*

**math**

An Algebra I test contains 40 questions. Some of the questions are worth 4 points each, and some are worth 2 points each. The total test is worth 100 points. Let f represent the number of questions worth 4 points and t, the number of questions worth 2 points. Which equation ...
*Monday, June 30, 2014 at 5:17pm*

**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 ...
*Monday, June 30, 2014 at 3:02pm*

**math**

Certain investments compound interest at different intervals. What effect does the size of the compounding interval have on the yield of the investment?
*Monday, June 30, 2014 at 2:04pm*

**math**

In an examination a candidate is given the four answers to four questions but is not told which answer applies to which question. He is asked to write down each of the four answers next to its appropriate question. b). show that there are 6 ways of getting just two answers in ...
*Monday, June 30, 2014 at 1:21pm*

**Math**

Add the quotient of 4/7 divided by 4/5 to the product of 4/7 multiply by 5/8
*Monday, June 30, 2014 at 12:45pm*

**Math**

An arc of a circle subtends an angle of 54 at the centre. If the arc is 9cm long, calculate the circumference of the circle.
*Monday, June 30, 2014 at 9:22am*

**math**

Sin^6x -sin^2 4x =sin2x sin10x
*Monday, June 30, 2014 at 7:56am*

**math**

2. Find two consecutive prime numbers less than 40 such that the sum of their opposites -5. 3. Insert plus (+) or minus (-) on the digits 1 to 9 asshown to obtain 100. 1 2 3 4 5 6 7 8 9. How many can you form?
*Monday, June 30, 2014 at 6:44am*

**math**

To discourage guessing, Mrs. Lopez made a test - grading scheme shown at the right. On a 100-item test, Jessa left 11 answers blank and answered and 48 question correctly. What is her score? It is problem solving involving addition in integers
*Monday, June 30, 2014 at 6:34am*

**math**

how 20 people are divide in 7 days such that each day gets an odd?
*Monday, June 30, 2014 at 2:45am*

**math**

If I have 10 pens and sold 8 which leave me with 8. What is the percentages
*Sunday, June 29, 2014 at 9:25pm*

**Math**

Integrate and simplify the following function: y= ∫(ln√x/x^2)+x 2^(3-5x^2))dx
*Sunday, June 29, 2014 at 8:56pm*

**Math**

Show that the derivative of y= cosh-1 (2x-1) is: dy/dx = √1/(x2-x)
*Sunday, June 29, 2014 at 8:51pm*

**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*

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