Tuesday

July 29, 2014

July 29, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

For a soccer game has been on sale 4 types of locations. The ticket prices for different locations form a geometric progression. If a person bought a ticket for each locality would spend 32.5 dollars and would see that the price of the most expensive is 3,375 times the price ...
*Tuesday, June 10, 2014 at 7:29pm*

**math**

A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the container.
*Tuesday, June 10, 2014 at 7:17pm*

**Math**

Ms. Sue please help! A radio signal travels at 3.00 • 10^8 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 3.54 • 10^7 meters? Show your work.
*Tuesday, June 10, 2014 at 6:23pm*

**math**

A country seen its population grow each year in the eighth of what it was the previous year. At that time the population is successfully a. duplicate b. triplicate
*Tuesday, June 10, 2014 at 5:58pm*

**math**

A businessman invested 10000 dollars in bonds paying annual interest of 8%. If you invest the proceeds in the purchase of new bonds, which will have the capital after 10 years
*Tuesday, June 10, 2014 at 5:56pm*

**math**

A person a pair of shoes is purchased each year and has noticed that the price has increased as a geometric progression. If the price increase in the last two years was 25 dollars and in the last year was 15 dollars. a. What was the price of the pair of shoes two years ago. b...
*Tuesday, June 10, 2014 at 5:54pm*

**math**

For a soccer game has been on sale 4 types of locations. The ticket prices for different locations form a geometric progression. If a person bought a ticket for each locality would spend 32.5 dollars and would see that the price of the most expensive is 3,375 times the price ...
*Tuesday, June 10, 2014 at 5:49pm*

**math**

A bottle containing 10 liters of alcohol one liter of alcohol is removed and replaced with water. After a liter of the mixture was removed and replaced with water, the operation being carried out 7 times in total. Then that amount of alcohol remains in the container.
*Tuesday, June 10, 2014 at 5:42pm*

**Math**

The doubling period of a bacteria culture is 35 minutes and it starts with 1400 bacteria. How many bacteria will there be after 3 hours? Round your answer to the nearest tenth.
*Tuesday, June 10, 2014 at 5:38pm*

**math**

To find three numbers in geometric progression, knowing that their sum is 78 and the highest 30 units exceeds the sum of the first and second term.
*Tuesday, June 10, 2014 at 5:24pm*

**math *check***

A bag contains 9 green marbles and 11 white marbles. You select a marble at random. What are the odds in favor of picking a green marble? A. 9:20 B. 2:9 C. 11:9 D. 9:11***?
*Tuesday, June 10, 2014 at 4:51pm*

**math (cant figure it out)**

4. A spinner is divided into 10 equal sections numbered from 0-10. You spin the spinner once. What is P(not even)? A. 3/5 B. 1/2 C. 5/11 D. 6/11 (I DONT GET THIS)
*Tuesday, June 10, 2014 at 4:42pm*

**Math**

Ms. Sue please help! 7. Suppose you earned 7t – 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer. (1 point) –t + 4 dollars –t – 6 dollars 15t – 6 dollars 15t + 4 dollars 8. f 2 ∙ f 3 (1 point...
*Tuesday, June 10, 2014 at 4:26pm*

**math**

The arithmetic mean of two numbers is 9 and their geometric mean is 3√5. Find these numbers
*Tuesday, June 10, 2014 at 4:26pm*

**math**

Given the numbers 10 and 40 their averages are obtained by different procedures 16, 20 and 25 respectively. Say which is the arithmetic mean and what is the geometric mean
*Tuesday, June 10, 2014 at 4:14pm*

**Math**

7. Suppose you earned 7t – 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer. (1 point) –t + 4 dollars –t – 6 dollars 15t – 6 dollars 15t + 4 dollars 8. f 2 ∙ f 3 (1 point) f 5 f 6 (2f)5 (2f)6 ...
*Tuesday, June 10, 2014 at 3:55pm*

**math**

A cooling cost 1540 dollars. After four years he sold at half their value. If this is repeated every four years, the payment in the refrigerator the fifth person to buy it and after a few years this purchase was made.
*Tuesday, June 10, 2014 at 3:50pm*

**math**

Finding three geometrically numbers knowing that their sum is greater than 78 and 30 units exceeds the sum of the other two.
*Tuesday, June 10, 2014 at 3:47pm*

**Math**

I can't figure out this question. I tried asking my classmates and teacher, but no help. Except one girl but I didn't understand. Can you help me? Question; A person who weighs 130 pounds can burn about 300 calories per hour skateboarding. Write a function that relates...
*Tuesday, June 10, 2014 at 3:16pm*

**math**

A board is 84 cm long. How many meters long is this board?
*Tuesday, June 10, 2014 at 2:22pm*

**Math**

A community group bought 30 tickets to an amusement park at a total cost of $810. They bought x student tickets for $25 each and y adult tickets for $30 each.
*Tuesday, June 10, 2014 at 1:16pm*

**math**

Find the reason for the geometric progression in which a1 = 1, n = 3, S3 = 157
*Tuesday, June 10, 2014 at 12:59pm*

**math (cant figure it out)**

3. A number cube is rolled 120 times. The number 4 comes up 47 times. What is the experimental probability of rolling a 4? What is the theoretical probability of rolling a 4? A. 47/120; 1/30*****? B. 47/120; 1/6 C. 4/47; 1/6 D. 1/6; 47/120
*Tuesday, June 10, 2014 at 12:28pm*

**Math**

The tops of seven water fountains in the Italian City of Reggio Emilia form a straight line. The first fountain is 120cm and the last one is 12cm. How tall is the third water fountain from the left? I have absolutely no idea, please help!!!
*Tuesday, June 10, 2014 at 11:52am*

**math, statistics**

The image of the public library is constantly changing, and their online services continue to grow. Usage of the library's home page grew by 17% during the past 12 months. It has been estimated that the current average length of a visit to the library's homepage is ...
*Tuesday, June 10, 2014 at 11:18am*

**math -interest **

Find the monthly payment for the loan. (Round your answer to the nearest cent.) $400 loan for 12 months at 14%
*Tuesday, June 10, 2014 at 11:05am*

**math**

About how tall is a tower i f the angle of depression from its top to a point 75 metres from the base is 62 degrees?
*Tuesday, June 10, 2014 at 11:02am*

**math - APR**

Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,650 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 the ...
*Tuesday, June 10, 2014 at 10:55am*

**math**

a polynomial in x of the third degree which will vanish when x=1 and x= -2 and will have the values 4and 28 when x= -1 and x=2 respectively is________.
*Tuesday, June 10, 2014 at 10:42am*

**math**

using factor theorem, show that a-b,b-c and c-a are the factors of a(b^2-c^2)+b(c^2-a^2)+c(a^2-B^2)
*Tuesday, June 10, 2014 at 10:40am*

**math**

find the value of a, if x-a is a factor of x^3-a^2x+x+2
*Tuesday, June 10, 2014 at 10:37am*

**math**

if a/b=c/d=e/f then find the value of 2a^4b^2+3a^2 c^2-5e^4f/(upon) 2b^6+3b^2 d^2-5f^5 in terms of a and b.
*Tuesday, June 10, 2014 at 10:36am*

**math**

if x,y are integral solution of 2x^2-3xy-2y^2=7 then value of |x+y| is:
*Tuesday, June 10, 2014 at 10:33am*

**math**

if 2x^3-5x^2+x+2=(x-2)(ax^2-bx-1)then a and b are respectively:
*Tuesday, June 10, 2014 at 10:31am*

**math**

let f(x) be a polynomial function. if f(x) is divided by x-1,x+1 and x+2 then remainders are 5,3and 2 respectively. whwn f(x) is divided by x^3+2x^2-x-2 then remainder is:
*Tuesday, June 10, 2014 at 10:29am*

**math**

the polynomials P(x)= kx^3+3x^2-3 and Q(x)= 2x^3-5x+k when divided by (x-4) leave the same remainder the value of k is
*Tuesday, June 10, 2014 at 10:26am*

**Math**

A famer has 50 sheep and 20 cows.Calculate the fraction of his animals that are cows.
*Tuesday, June 10, 2014 at 10:23am*

**math**

if (x-a) is a factor of x^3-a^2x+x+2 then 'a' is equal to
*Tuesday, June 10, 2014 at 10:22am*

**Math **

Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure to the nearest tenth of a degree, where ...
*Tuesday, June 10, 2014 at 10:08am*

**math**

Calculate the cash discount and the net amount due for the following transaction. Amount of Invoice Terms of Sale Cash Discount Net Amount Due $12,660.00 2/10, n/45
*Tuesday, June 10, 2014 at 12:45am*

**Math**

How do you know what the period of this function is: y=2cos3(x+45')? Explain.
*Tuesday, June 10, 2014 at 12:26am*

**Math**

Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure to the nearest tenth of a degree, where ...
*Monday, June 9, 2014 at 11:21pm*

**math**

m=(monday tuesday wednesday ...sunday)
*Monday, June 9, 2014 at 10:39pm*

**math (check answer plz)**

2. A jar contains blue, red, yellow, and green marbles. P(blue)=1/4. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment. C. Theoretical; the ...
*Monday, June 9, 2014 at 9:54pm*

**math**

I need help explaing percentage s to my daughter such as a bike cost $250 but it is on sale for%25 off
*Monday, June 9, 2014 at 8:06pm*

**math**

120 / 2p = 30
*Monday, June 9, 2014 at 7:33pm*

**math**

The polynomial x 3 + 5x 2 -57x -189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3) in. If the width of the box is 15 in., what are the other two dimensions? ( Hint: The height is greater than the depth.)
*Monday, June 9, 2014 at 7:32pm*

**math**

What is the period, in seconds, of a simple pendulum of length 3 meters? Use the gravitational constant g = 9.8 m/s2 and round your answer to two decimal places Please help! A step by step would with the answer would be helpful!
*Monday, June 9, 2014 at 7:20pm*

**Math**

Alex's distance form home is represented by the equation D= -0.5t +300 D represents his distance from home and t represents time in minutes How long will it take Alex to reach a distance of 182 km from home
*Monday, June 9, 2014 at 6:31pm*

**Math **

Two 6-sided dice are rolled at the same time. How many outcomes correspond to the event that the sum of the numbers is 5?
*Monday, June 9, 2014 at 6:22pm*

**math *check* **

1. You roll a number cube numbered one to six 12 times. P(5)=2/3. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment. C. Theoretical; the ...
*Monday, June 9, 2014 at 5:24pm*

**Math**

Find the maximum or minimum value of function and the value of x when it occurs: -2x^2+5x+5.
*Monday, June 9, 2014 at 5:12pm*

**Math**

Alex needs 2&1/4 cups of flour ,he has 2&3/10 cups Draw a number line that shows both fractions.
*Monday, June 9, 2014 at 5:00pm*

**geometery**

4. Quadrilateral MATH has been dissected into squares. The area of the red square is 64 square units and the area of the blue square is 81 square units. Determine the dimensions and the area of quadrilateral MATH.
*Monday, June 9, 2014 at 4:09pm*

**Math**

a standard checkerboard with 8 blocks to a side contains 204 squares of various sizes. in how many such squares are there an equal number of red blocks and black blocks?
*Monday, June 9, 2014 at 2:52pm*

**math**

A tap flows at a rate of 15 litres per minute. How long will it take to fill a 300 litre container?
*Monday, June 9, 2014 at 2:04pm*

**Math**

If Kate is flying a kite on the field and she lets out 20 meters of string and at the same time her friend Abigail is watching in the distance The angle of elevation of the kite from her position is 65 degrees And the angle of elevation of the kite from Abigail's position ...
*Monday, June 9, 2014 at 11:00am*

**MATH**

You have five $1 bills, four $5 bills six $10 bills and three $20 bills. You select a bills at random. Without replacing the bill, You choose a second bill. What is P($1, then $10)?
*Monday, June 9, 2014 at 10:47am*

**MATH**

You have five $1 bills, four $5 bills six $10 bills and three $20 bills. You select a bills at random. Without replacing the bill, You choose a second bill. What is P($1, then $10)?
*Monday, June 9, 2014 at 10:46am*

**Math**

At a carnival, Linda bought packs of tickets each. She has used of the tickets so far. How many tickets does she have left?
*Monday, June 9, 2014 at 10:43am*

**MATH**

A spinner is divided into 10 equal sections numbered from 0 to 10. You spin the spinner once. What is P(divisible by 3)? 1/3 1/2 2/5 3/10 The probability of a certain baseball player hitting a foul ball is 1/4. How many foul balls would you expect her to hit after 80 swings? 4...
*Monday, June 9, 2014 at 10:18am*

**math. **

Solve the double inequality 0<(x+3)/2<5
*Monday, June 9, 2014 at 9:00am*

**math helpppp !**

Solve the equation and check soultion 2(13t-15)+3(t-19)=0
*Monday, June 9, 2014 at 8:27am*

**math foundations 20**

How do I solve normal distribution word problems? Ex A manufacturer offers a warranty on it's coffee makers. The coffee makers have mean lifespan of 4.5 years, with standard deviation of 0.7 yeaes. For how long should the coffee makers be covered by the warranty, if the ...
*Monday, June 9, 2014 at 1:26am*

**math**

12 different flavors of ice cream and 2 different toppings. How many different kinds of sundaes could be made if each sundae contained 2 scoops of ice cream and one topping?
*Monday, June 9, 2014 at 1:05am*

**Math**

I'm an on-going 8th grader, and I'm taking a class for Algebra 2. What should I expect that is different from Algebra 1? P.S. I've taken Geometry online.
*Sunday, June 8, 2014 at 11:13pm*

**Math**

Find two quadratic functions whose graph have the given x-intercepts. Find one function whose graph opens upward and another whose graph open downdward. (-5/2,0),(-2,0)
*Sunday, June 8, 2014 at 10:58pm*

**Math 11**

From a window in a building 20 m above ground the angle of depression of the top of a statue across the street is 30 degrees, and the angle of depression of the base of the statue is 34. How tall is the statue?
*Sunday, June 8, 2014 at 10:30pm*

**Math 11**

From a weather balloon high in the air, the angle of depression of a ground marker is 27.8 degrees. If the balloon rises 345 m straight up the angle of depression from this higher point is 46.2 degrees. How high above the ground is the balloon?
*Sunday, June 8, 2014 at 10:29pm*

**Math helpppp!**

Write the quadratic function in standard form and sketech its graph. Identify the vertex. h(x)=(x-6)^2+3
*Sunday, June 8, 2014 at 9:55pm*

**math**

A cylinder is 12cm tall and has a diameter of 3 cm. What is the surface area?
*Sunday, June 8, 2014 at 9:49pm*

**math**

A polyhedron has 6 faces and 4 vertices. Use Euler's formula to calculate the number of edges.
*Sunday, June 8, 2014 at 9:36pm*

**math help plz2!!!!**

Find an equation of parabola that has the indicated vertex and whose graph passes through the given point. Vertex (-3,5) Point (-6,1)
*Sunday, June 8, 2014 at 9:14pm*

**math**

The daily production costs P (in dollars) for a manufacturer of sound systems is given by the quadratic function. P(x)= -0.003x^2+150x-375,000 Where x is the number of units produced. What production level will yield a maximum profit?
*Sunday, June 8, 2014 at 8:16pm*

**Math**

Marc works in a dairy processing plant. He is paid 16.50/h. He is paid time-and-a-half if he works more than 40 hours in a week. Marc worked 54 hours this week. What is his gross pay? 1.5 x 16.50 = 24.75 24.75 x 40 = 990 Answer (what I got): 24.75 + 990 = $1014.75 The answer ...
*Sunday, June 8, 2014 at 7:54pm*

**Math**

Find the number of units that produces a maximum revenue. The revenue R is measured in dollars and x is the number of units produced. R = 80x – 0.0001x^2
*Sunday, June 8, 2014 at 7:50pm*

**MATH**

The perimeter of a rectangle is 540ft. Let x represent the width of the rectangle. Write a quadratic function for the area of rectangle in terms of its width. Find the vertex of the graph of the quadratic function and interpret its meaning in the context of the problem.
*Sunday, June 8, 2014 at 7:32pm*

**MATH**

Find two quadratic functions whose graph have given x-intercepts. Find one function whose graph opens upward and another whose graph opens downward. (-4,0) (0,0)
*Sunday, June 8, 2014 at 7:24pm*

**Business Math**

What will be the total deduction for social security and Medicare taxes on Juanita's next biweekly paycheck of $2,000 if she has already earned $6,000 this year? Social security tax is 6.2% of wages up to $106,800. Medicare tax is 1.45% of all wages.
*Sunday, June 8, 2014 at 7:14pm*

**math**

At Dora's donut shop, dora makes 15 different varieties of donuts. Seven of these varieties are filled with jelly or cream. Officer sweetooth was sent to dora's shop to choose a dozen donuts, all different, with six filled and six unfilled. How many different ...
*Sunday, June 8, 2014 at 6:16pm*

**Math Personal Finance**

A friend tells you that her savings account doubled in 9 years. Use the Rule of 72 to estimate what the APR of her account was.
*Sunday, June 8, 2014 at 5:49pm*

**Math statistics**

How large a sample should be taken if the population mean is to be estimated with 95% confidence to within $69? The population has a standard deviation of $892. (Round you answer up to the nearest whole number.) You may need to use the appropriate table in Appendix B to answer...
*Sunday, June 8, 2014 at 5:39pm*

**Math **

The average weight of 3 boys is 53 pounds. Not one of these boys weighs less than 51 pounds. What is the maximum possible weight in pounds, of any one boy?
*Sunday, June 8, 2014 at 5:13pm*

**math**

Assume that Mary Boyle had a homeowner’s insurance policy with $ 150,000 of coverage on the dwelling. Would a 90 percent co- insurance clause be better than an 80 percent clause in such a policy?
*Sunday, June 8, 2014 at 4:41pm*

**Math Personal Finance**

A friend tells you that her savings account doubled in years. Use the Rule of 72 to estimate what the APR of her account was. APR=____%
*Sunday, June 8, 2014 at 4:16pm*

**Math Personal Finance**

What is the present value of an investment that will be worth $2000 at the end of five years? Assume an APR of 6% compounded monthly. Present Value= $____
*Sunday, June 8, 2014 at 4:16pm*

**Math Personal Finance**

What is the present value of an investment that will be worth $2000 at the end of five years? Assume an APR (Annual Percentage Rate) of 6% compounded monthly. The present value is $_____ .
*Sunday, June 8, 2014 at 4:15pm*

**Math Personal Finance**

Assume an 18-month CD purchased for $7000 pays an APR of 5% compounded monthly. What is the APY? APY=____%
*Sunday, June 8, 2014 at 4:14pm*

**Math Personal Finance**

Assume an investment of $100 earns an APR (Annual Percentage Rate) of 5% compounded annually. The balance after 190 years will be $______.
*Sunday, June 8, 2014 at 4:13pm*

**Math Personal Finance**

Assume an investment of $7000 earns an APR (Annual Percentage Rate) of 6% compounded monthly for 18 months. The money in your account after 18 months will be $______.
*Sunday, June 8, 2014 at 4:13pm*

**Math Personal Finance**

Assume we invest $2000 for one year in a savings account that pays an APR (Annual Percentage Rate) of 10% compounded quarterly. The compound interest formula is: Balance after t periods = Principal × (1 + r)t The final balance using the compound interest formula is $...
*Sunday, June 8, 2014 at 4:12pm*

**Math Personal Finance**

Assume we invest $2000 for one year in a savings account that pays an APR (Annual Percentage Rate) of 10% compounded quarterly. Calculate the interest and compound it by hand each quarter rather than using the compound interest formula. The total interest the account has ...
*Sunday, June 8, 2014 at 4:12pm*

**Math Personal Finance**

Assume a 30-month CD purchased for $4000 pays simple interest at an annual rate of 5.5%. How much total interest does it earn? What is the balance at maturity?
*Sunday, June 8, 2014 at 4:10pm*

**math**

David Salter has a personal automobile policy ( PAP) with coverage of $ 25,000/$ 50,000 for bodily injury liability, $ 25,000 for property damage liability, $ 5,000 for medical payments, and a $ 500 deductible for collision insurance. How much will his insurance cover in each ...
*Sunday, June 8, 2014 at 3:51pm*

**Math Personal Finance**

Assume a 30-month CD purchased for pays simple interest at an annual rate of 5.5%. How much total interest does it earn? What is the balance at maturity?
*Sunday, June 8, 2014 at 3:42pm*

**Math**

If 7x + 4y = 18 and 3x + y = -3, what is the value of x + y? F. 9 G. 11 H. 12 J. 14 K. 15
*Sunday, June 8, 2014 at 3:39pm*

**Math **

A pizza parlor has 3 diffrebt crusts and 3 diffrent cheeses and 7 diffrent toppings . How many combinations are on a pizza with 3 topings 1 crust and 1 cheese ? Help please I got 42 and then was told I was wrong
*Sunday, June 8, 2014 at 3:32pm*

**Math**

4x^3-6.68E-7x^2+1.67E-8x-1.04E-10 = 0
*Sunday, June 8, 2014 at 3:11pm*

**Math**

If you multiply a number by 3 and then add 40, the result is the same as if you first add 17 and then multiply by 2. What is the result if you subtract 9 from the number and then multiply by 4? A. -60 B. -72 C. -84 D. -108 E. -124
*Sunday, June 8, 2014 at 2:48pm*

**math**

the no. of real roots of eqn (x-1)POWER 2 + (X-2) POWER 2 +(X-3) POWER 2= 0 IS:
*Sunday, June 8, 2014 at 2:25pm*

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