Thursday

April 24, 2014

April 24, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

the sides of a triangle are xcm,x+3cm and 10cm.if x is a whole number of cm,find the lowest value of x
*Sunday, March 2, 2014 at 9:36am*

**Math**

The 3rd term of a geometric series is 18 , and the 5the term is 162 .Determine the sum of the of the first 7 terms ,where r < 0
*Sunday, March 2, 2014 at 7:03am*

**math**

how many time I can arranged the word MAHABHARAT thatB and T never come togather .first four place MATH not come.
*Sunday, March 2, 2014 at 6:51am*

**math**

rules find 1/4 of the input find 1/8 of the input input output 16 ___ 20 ____ 80 ____ 32 ____ 40 ____ 18 ____
*Sunday, March 2, 2014 at 6:44am*

**Math**

One side of a triangular banner is 1 ½ times longer than the second side and 2 cm shorter than the third side. The perimeter of the triangle is 98 cm. How long is the shortest side?
*Sunday, March 2, 2014 at 5:17am*

**math**

Prove that the real numbers with the operation of addition is a group but that the real numbers with the operation multiplication is not a group
*Sunday, March 2, 2014 at 4:19am*

**MATH**

help 16^2ã24/6ã56
*Sunday, March 2, 2014 at 12:36am*

**MATH**

can somone help! 7ã2*3ã9
*Sunday, March 2, 2014 at 12:35am*

**Math**

(a) translate the argument into symbolic form and (b) determine if the argument is valid or invalid. You may compare the argument to a standard form or use a truth table. If I can get my child to preschool by 9:45AM, then I can take the 9:00AM class. If I can take the 9AM ...
*Saturday, March 1, 2014 at 11:59pm*

**math**

Finney & Company purchased $1,800 of merchandise on 5/6. The terms were 2/15 EOM. The sneakers were received on 5/20, sent FOB Shipping Point. Freight charges amounted to $45. a. What is the discount date? b. What payment must be made by that date to take advantage of the ...
*Saturday, March 1, 2014 at 11:47pm*

**math**

City Cellular purchased $28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. a. What is the net amount due if City Cellular sends the manufacturer a partial payment of $5,000 on May...
*Saturday, March 1, 2014 at 11:36pm*

**math**

In October, a hardware store purchased snow shovels for $8 each. The original markup was 50% based on the selling price. In December, the store had a sale and marked down the shovels by 20%. By January 1, the sale was over and the shovels were marked up 15%. In March, the ...
*Saturday, March 1, 2014 at 11:27pm*

**math**

The Mills Lunch Shop prepares fresh take-out entrees each day. On Tuesday, 40 baked chicken dinners were prepared at a cost of $3.20 each. A 20% spoilage rate is anticipated. Mills Lunch Shop sells the dinners at an 80% markup based on cost. They decided to offer a $1.00-off ...
*Saturday, March 1, 2014 at 11:20pm*

**Math**

The scores of students on standardized test are normally distributed with a mean of 300 and a standard deviation of 40. Between what two values do 99.7% of the test scores lie?
*Saturday, March 1, 2014 at 10:33pm*

**math**

Greg teaches martial arts. He charges a one time processing fee of $5.00 and the cost of classes are shown below. let x represent the number of classes and y represent the cost of the classes. Based on the information, what will it cost to take 10 classes? (x) classes 1 2 3 4...
*Saturday, March 1, 2014 at 8:21pm*

**Math**

The sum of two numbers is 35 and their difference is 7. What are the two numbers?
*Saturday, March 1, 2014 at 7:09pm*

**MATH**

Brandon has a 55-gallon fish tank. He estimates he can drain the tank at an average rate of 11 gallons per minute. In a linear model of this situation, x represents the number of minutes the tank has been draining. Relative to this situation, what does the y-intercept ...
*Saturday, March 1, 2014 at 6:57pm*

**Math**

The volume of a sphere is increasing at a rate of 5 cm^3/s. Find the rate of change of its surface area when its volume is 500pi/3 cm^3.
*Saturday, March 1, 2014 at 6:42pm*

**math**

Brandon has a 55-gallon fish tank. He estimates he can drain the tank at an average rate of 11 gallons per minute. In a linear model of this situation, x represents the number of minutes the tank has been draining. Relative to this situation, what does the y-intercept ...
*Saturday, March 1, 2014 at 6:42pm*

**Math**

How do you change a decimal into a percent? For example- 136.8 as a percent
*Saturday, March 1, 2014 at 6:34pm*

**math(algebra)**

Sam downloaded four applications for $2.99 each to her cell phone. The remaining applications that Sam purchased cost $1.99 each. If she downloaded x total applications, which of the following equations can be used to find how much Sam spent on cell phone application downloads...
*Saturday, March 1, 2014 at 6:26pm*

**Math**

Also~ 18.45 of 880 is what number? My answer- 1.6192
*Saturday, March 1, 2014 at 5:52pm*

**math**

62% of 146 is what number? My answer- 23548.38
*Saturday, March 1, 2014 at 5:45pm*

**algebra**

A math tutoring service opened for their first year open, it had 5 students. If 3 new students enroll each year, which of the following equations represents how many students will be enrolled in x years? answer choices: A: y = 5x - 3 B: y = 5x + 3 C: y = 3x + 5 D: y = 3x - 5
*Saturday, March 1, 2014 at 4:48pm*

**math**

A sweater that reg. sold for $48 was put onsale for 33 1/3% off. what is the sale price?
*Saturday, March 1, 2014 at 3:50pm*

**math**

Base is found by ________ the portion by the rate
*Saturday, March 1, 2014 at 3:32pm*

**Math**

are the events of drawing a knight from the bag of white pieces and drawing a pawn from the bag of black pieces dependent or independent events? find the probability of this compound event.
*Saturday, March 1, 2014 at 2:57pm*

**math**

The tax on a purchase was $9.33. If the sales tax rate is 6%, how much was the purchase?
*Saturday, March 1, 2014 at 1:21pm*

**Math**

If the diameter of a round dinner plate is 10 inches what is the area of the plate
*Saturday, March 1, 2014 at 12:55pm*

**Math-5th grade.HELP!**

a 12 gallon tank is filled with water at the rate off 1/4 gallon in 5 seconds. At this rate, how long will it take to fill 5/6 of the tank? ?????
*Saturday, March 1, 2014 at 12:49pm*

**5th grade math**

In the multiplication problem at the right different letters stand for different digits, and ABC and DBC each represent a three digit number. What number does DBC represent? Two answer possible; give one
*Saturday, March 1, 2014 at 12:20pm*

**Math**

The California speedway hosts automobile races. Which rate of speed is higher: a car completing a 500 mi race in about 3 1/3 h or a car completing a 300 mi race in about 2 1/2 h?
*Saturday, March 1, 2014 at 12:17pm*

**Math**

what is the sum of the solutions of the equation |2x-7|=11? A) -9 B) -7 C) 5 D) 7 E) 9 ***What is the most efficient way to solve this?
*Saturday, March 1, 2014 at 11:50am*

**Math**

Manufacturing A factory manufactures two products, each requiring the use of three machines. The first machine can be used at most 70 hours; the second machine at most 40 hours; and the third machine at most 90 hours. The first product requires 2 hours on machine 1, 1 hour on ...
*Saturday, March 1, 2014 at 11:13am*

**math**

Dylan's Bicycle Shop offers a new bicycle on sale for $259.92 after a 10% markdown. What was the cost of the bicycle to Dylan if the markup was 30% based on the cost? (Round to the nearest cent.)
*Saturday, March 1, 2014 at 10:39am*

**college busines math**

The Mills Lunch Shop prepares fresh take-out entrees each day. On Tuesday, 40 baked chicken dinners were prepared at a cost of $3.20 each. A 20% spoilage rate is anticipated. Mills Lunch Shop sells the dinners at an 80% markup based on cost. They decided to offer a $1.00-off ...
*Saturday, March 1, 2014 at 10:32am*

**Math**

Manufacturing A factory manufactures two products, each requiring the use of three machines. The first machine can be used at most hours; the second machine at most hours; and the third machine at most hours. The first product requires hours on machine hour on machine and hour...
*Saturday, March 1, 2014 at 10:05am*

**MATH**

help... 5sqrt(8) - 3sqrt(18) + sqrt(3)
*Saturday, March 1, 2014 at 8:44am*

**MATH**

PLEASE HELP ME! 4sqrt2+6sqrt4
*Saturday, March 1, 2014 at 8:41am*

**math**

suppose that we are standing on a bridge 30 feet above a river watching a log (piece of wood) floating toward we. If the angle with the horizontal to the front of the log is 16.7 degree and angle with horizontal to the back of the log is 14 degree, how long is the log?
*Saturday, March 1, 2014 at 12:57am*

**math**

A hot dog vendor at the zoo recorded the average temperature and the average number of hot dogs she sold. The equation for the line of best fit for this situation is shown below. Based on the line of best fit, complete the following statements. The expected number of hot dogs ...
*Friday, February 28, 2014 at 10:30pm*

**Math**

. In 1991 the federal minimum wage was $4.25. In 1997 the federal minimum wage was $5.15. Find the rate of change (slope) for the federal minimum wage between 1991 and 1997.*Hint: let 1991 and 1997 be the domain and let $4.25 and $5.15 be the range
*Friday, February 28, 2014 at 8:58pm*

**Math**

Please can you tell me how to find the percentage and probability
*Friday, February 28, 2014 at 8:29pm*

**Math**

Assume you are working on a house the length of the house is 50 feet, the width is 30 feet, and from the ground to the gable is 10 feet. The height of the triangle prism on top is 6.5 feet. If you are going to shingle the roof of this house, how many square feet should you ...
*Friday, February 28, 2014 at 8:13pm*

**Math:Probability**

The probability of having homework over the weekend in math is 0.9,history is 0.6, and Spanish is 0.75. 1. What is the probability of having exactly one class that gives homework? Is this a nCx problem? I got an illogical answer: 10.54=1054% THIS IS NOT RIGHT!!!!!!! 2. What is...
*Friday, February 28, 2014 at 7:44pm*

**Math**

The attendace at the harmony school carnival has shown a range of 200 people during the years 2008 through 2011.Which graph could show the carnival attendance correctly?
*Friday, February 28, 2014 at 7:33pm*

**math(algebra)**

A small college opened in 1999. In the linear model below, x represents the number of years after 1999, and y represents the student population. Interpret the slope. y = 576 + 173x Answer choices are::: A: An additional year of the college being open is associated with an ...
*Friday, February 28, 2014 at 6:23pm*

**Math**

What is the volume of a sphere with a radius of 7 cm rounded to the nearest cubic centimeter a) 4,310 cm b) 1,437 cm c) 615 cm d) 359 cm
*Friday, February 28, 2014 at 6:13pm*

**MATH**

SIMPLIFY. 4 TO THE 4TH POWER TIMES 4 TO THE 2ND POWER.
*Friday, February 28, 2014 at 5:24pm*

**math(algebra)**

Find the distance between A and B. A= the coordinates ( 6, 1) B= the coordinates ( 2, -3) answer choices are: A. 8 units B. 16 units C. 2 times the square root of 2 units D. 4 times the square root of 2 units
*Friday, February 28, 2014 at 4:55pm*

**Math 30-2**

There are 7 different books on a shelf. How many selections of more than 4 books can be made?
*Friday, February 28, 2014 at 4:43pm*

**Math (Statistics) **

The SAT scores of a certain population of students are approximately normally distributed with a mean and standard deviation of 1000 and 200 points, respectively. The probability that a student selected at random from the population has an SAT score between 800 and 1200 ...
*Friday, February 28, 2014 at 3:20pm*

**Math**

A shirt originally cost $54.04, but it is on sale for $43.23. What is the percentage decrease of the price of the shirt? If necessary, round to the nearest percent.
*Friday, February 28, 2014 at 3:06pm*

**Math**

an airplane is flying a compass of 340 degrees at 325 mph. A wind is blowing with the bearing 300 degrees at 30 mph. Find the component form of the velocity, and find the actual ground speed and direction of the plane.
*Friday, February 28, 2014 at 2:57pm*

**math**

A rope is wound 50 times round a cylinder of radius 25cm how long is the rope [use the value 3.14 for pi]
*Friday, February 28, 2014 at 1:47pm*

**math**

simplfy 3 root 3/8
*Friday, February 28, 2014 at 1:37pm*

**math**

need help 3x^2sqrt(5x) * 3sqart(3x^3)
*Friday, February 28, 2014 at 1:35pm*

**math**

Joe spent 25% of his money on food. He spent 25% of the remainder on drink. He had $9 left. How much money did Joe have to start?
*Friday, February 28, 2014 at 12:00pm*

**MATH**

HELP PLEASE (ã6+ã2) (ã6-ã2)
*Friday, February 28, 2014 at 11:44am*

**math**

elp please (ã6+ã2) (ã6-ã2)
*Friday, February 28, 2014 at 11:18am*

**Math**

Use roster notation to create and write two proper subsets of your original set. 3. Do the following and write your answers in roster notation. •Find the union of the sets. •Find the intersection of the sets. •Find the complement of each of the sets.
*Friday, February 28, 2014 at 10:41am*

**math**

I need help with this 5ã3+2ã75
*Friday, February 28, 2014 at 10:09am*

**math**

i need help with this problem 2ã20x + 3ã5x
*Friday, February 28, 2014 at 10:08am*

**math**

Two numbers have a product of 3 and 1/5 and a sum of 3 and 3/5 what are the numbers
*Friday, February 28, 2014 at 9:58am*

**math**

If the interest on a sum is compounded quarterly, which of the following is necessarily true? a) The effective rate of interest is same for every year. b) The ratio of interest for the (m + 1) th year to m th year will be same as the ratio of interest for the (n + 1) th year ...
*Friday, February 28, 2014 at 9:57am*

**Math**

A trucker on the interstate travels 32 miles in 30 minutes. At this rate, how far will the truck travel in 4.5 hours?
*Friday, February 28, 2014 at 9:50am*

**Math**

The Mills Lunch Shop prepares fresh take-out entrees each day. On Tuesday, 40 baked chicken dinners were prepared at a cost of $3.20 each. A 20% spoilage rate is anticipated. Mills Lunch Shop sells the dinners at an 80% markup based on cost. They decided to offer a $1.00-off ...
*Friday, February 28, 2014 at 8:57am*

**math**

There exist irrational numbers a and b so that a^b is rational. look at the numbers √2^√2 and (√2^√2)^√2 a) use similar idea to prove that there exists a rational number a and an irrational number b so that a^b is irrational b) prove that if 2^&#...
*Friday, February 28, 2014 at 4:13am*

**math**

ʃ ( tanx + cotx )² dx
*Friday, February 28, 2014 at 3:48am*

**Math**

Forensic scientists use the lengths of certain bones to calculate the height of person. A bone often used is the tibia (t), the bone from the ankle to the knee. A man’s height (h) is determined from the length of this bone using a function defined by the following formula...
*Friday, February 28, 2014 at 1:59am*

**Math**

A bus leaves a station at 8:00 am and averages 30 mi/h. Another bus leaves the same station following the same route two hours after the first and averages 50 mi/h. When will the second bus catch up with the first bus?
*Thursday, February 27, 2014 at 11:07pm*

**Math**

The area of the rectangle is 33 square feet. If its width is 5 1/4 feet, find its
*Thursday, February 27, 2014 at 11:06pm*

**math**

what is the roman numeral for 80
*Thursday, February 27, 2014 at 11:04pm*

**math**

A tile border follows this pattern . How many tiles are in a 6 ft border ?
*Thursday, February 27, 2014 at 10:43pm*

**Math**

Use logarithms to find the given equation(find x) 9(1.06^5x + 1) = 15
*Thursday, February 27, 2014 at 10:34pm*

**math**

A truck drove 1400 miles at a rate twenty miles per hour slower on the return trip. If the trip took 22 hours total, how fast was the truck going on the return trip? Round your answer to the nearest hundredth.
*Thursday, February 27, 2014 at 10:16pm*

**math**

35+50+25/5 X 5 - (8+11) = answer 25 (-16 + 20) x 6 / (6+2) + 31 = answer 34 3+2 (4+ 9 / 3) = answer 17 5 [48 / (12 + 4) ] - 16 = answer -14 1/2(-16-4) = answer -10
*Thursday, February 27, 2014 at 9:56pm*

**math **

a 5% acid solution is mixed with a 9% acid solution. How many ounces of each solution are needed to obtain 40 ounces of a 6% solution?
*Thursday, February 27, 2014 at 9:52pm*

**Math**

A line in coordinate plane contains the points P(2, -7) and Q(-4, -1). What point is the midpoint of PQ?
*Thursday, February 27, 2014 at 9:39pm*

**math**

i need help with this problem Problem; 5ã3+2ã75
*Thursday, February 27, 2014 at 9:32pm*

**Math**

A line in coordinate plane contains the points P(2, -7) and Q(-4, -1). What point is the midpoint of PQ?
*Thursday, February 27, 2014 at 9:23pm*

**math (algebra honors)**

the edge of one cube is 2 cm shorter than the edge of a second cube. The volumes of the two cubes differ by 386cm^3. Find the edge of the smaller cube.
*Thursday, February 27, 2014 at 9:19pm*

**Business Math**

True Value received an invoice dated 4/28/12. The invoice had a $5,700 balance that included $600 freight. Terms were 5/10, 4/30, n/60. True Value pays the invoice on May 12. What amount does True Value pay?
*Thursday, February 27, 2014 at 9:15pm*

**Math (Geometry)**

Give one example of how to solve for a missing side, given 1 side (59 ft) and 1 reference angle (35 degrees) solving with the variable in the numerator. Please help and show as much work as possible!
*Thursday, February 27, 2014 at 9:14pm*

**Quick math help**

I need help with solving these problems. When I checked it it didn't equal to the original equation. Factor each completely. 1. 4n^3+4n^2-16n-16 2. 9k^3-15k^2-3k+5 3. 60m^3+48m^2-20m-16 4. 12n^3+8n^2-3n-2
*Thursday, February 27, 2014 at 9:08pm*

**math algebra**

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 115 miles per hour. The westbound train travels at 95 miles per hour. How long will it take for the two trains to be 504 miles apart?
*Thursday, February 27, 2014 at 8:58pm*

**math**

-3h=9(2-3h) 5(t+7)=2(s+9) 6(s+4)=3(s+9) 2(p+2)=1.8-2-0.2(p+5)
*Thursday, February 27, 2014 at 8:54pm*

**Math**

Ms. Fisher is using 64 carpet tiles to make a reading area in her classroom. Each tile is square that measures 1 foot by 1 foot. What is.the length and width of the rectangular area she can make with the smallest possible perimeter?
*Thursday, February 27, 2014 at 8:42pm*

**consumer math**

You (or your parents) purchase a used car for $15,876.00 plus 5.25% sales tax. The down payment is 10% of the total cost and you ( or your parents ) have an excellent credit rating. What is your principal balance at the start of the loan?
*Thursday, February 27, 2014 at 8:38pm*

**math**

30-2s=4s 13q-48=-3q 5z-43=2z+80 8f+11=-7f-19 9b-10=-b-18
*Thursday, February 27, 2014 at 8:36pm*

**Math**

Which is more, 2 liters or 201 centiliters?
*Thursday, February 27, 2014 at 8:31pm*

**math**

35+50+25/5 X 5 - (8+11) = 25 (-16 + 20) x 6 / (6+2) + 31 = 34 3+2 (4+ 9 / 3) = 17 5 [48 / (12 + 4) ] - 16 = -14 1/2(-16-4) = -10
*Thursday, February 27, 2014 at 8:31pm*

**Math**

Can we add 23 and 40 without regrouping? What is regrouping
*Thursday, February 27, 2014 at 8:22pm*

**math**

what is the height of a solid with a volume of 120 m unit cubed and base area of 30 m squared?
*Thursday, February 27, 2014 at 8:00pm*

**Math**

The new highway will be a total of 54 mils long. Will the highway be finished in 8 months?
*Thursday, February 27, 2014 at 7:03pm*

**math**

Help!!I need to understand how to estimate the sum or difference for fractions..2 and 2 thirds plus 3 fourths,1 and 7 eighths minus 1 and a half,and 3 and 9 tenths minus 1 and 2 fifths,please help,not good with math
*Thursday, February 27, 2014 at 7:02pm*

**Math**

the smallest regulation golf ball has a volume of 2.48 cubic inches. if the diameter of the ball were increased by 10%, or a factor of 1.1, what will the volume of the golf ball be?
*Thursday, February 27, 2014 at 7:01pm*

**math **

The equation of line AB is y = 2x + 4. Write an equation of a line parallel to line AB in slope-intercept form that contains point?
*Thursday, February 27, 2014 at 6:50pm*

**math **

The equation of line AB is (y-3) = 5 (x - 4). What is the slope of a line perpendicular to line AB?
*Thursday, February 27, 2014 at 6:49pm*

**math **

The equation of line AB is y = 2x + 4. Write an equation of a line parallel to line AB in slope-intercept form that contains point (3, -2).
*Thursday, February 27, 2014 at 6:47pm*

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