Wednesday

December 17, 2014

December 17, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**MATH PLEASE HELP**

You want to make an investment in a continuously compounding account earning 1.2% interest. How many years will it take for your investment to double in value? Round the logarithm value to the nearest thousandth. Round the answer to the nearest year. I got 6 years, is this ...
*Wednesday, December 17, 2014 at 2:52pm*

**BUSINESS MATH**

: The Crescent Corporation just paid a dividend of $2 per share and is expected to continue paying the same amount each year for the next 4 years. If you have a required rate of return of 13%,
*Wednesday, December 17, 2014 at 2:35pm*

**Math! 2 question! Need help! **

write an equation in point slope from of the line that passes through the given point and with the given slope m Question 1.) (3 , -4) ; m=6 Question 2.) (-2, -7) ; m= 4/5 Please help! No links or websites please! thanks!!
*Wednesday, December 17, 2014 at 2:34pm*

**Math Help**

Change the exponential statement 5^x =125 into an equivalent logarithmic statement.
*Wednesday, December 17, 2014 at 2:16pm*

**Math( Can you help me with starting this problem)**

How fast does the radius of a spherical soap bubble change when you blow air into it at the rate of 15 cubic centimeters per second? Our known rate is dv/dt , the change in volume with respect to time, which is 15 cubic centimeters per second. The rate we want to find is dr/dt...
*Wednesday, December 17, 2014 at 1:46pm*

**math**

What is the product written in scientific notation? (2.6 × 10–4)(2.2 × 108)
*Wednesday, December 17, 2014 at 1:18pm*

**math**

A supermarket sells eggs in cartons of a half dozen($6),a full dozen ($2.18) and a dozen and a half eggs ($3.00) What is the constant proportionality that relates the price to the quantity of eggs.
*Wednesday, December 17, 2014 at 1:15pm*

**Math**

You want to make an investment in a continuously compounding account over a period of 100 years. What interest rate is required for your investment to double in that time period? Round the logarithm value and the answer to the nearest hundredth. I got C, is this correct? 0.7...
*Wednesday, December 17, 2014 at 1:02pm*

**Math**

For a college football field with the dimension shown, the angle for kicking a field goal from a ( horizontal) distance of x feet from the goal post is given by∅(x)=tan^(-1)〖(29.25/x〗)-〖tan^(-1) (〗〖10.75/x〗...
*Wednesday, December 17, 2014 at 12:46pm*

**math**

Decide whether the each equation has one solution, no solutions,or infinitely many solutions. 1. 2(x-3)= 2X A.One solution B.No solutions C.Infinitely many solutions 2. 3(y-3)= 2y-9+y A.One solution B.No solutions C.Infinitely many solutions 3. 10x-2-6x = 3x-2+x A.One solution...
*Wednesday, December 17, 2014 at 12:41pm*

**math**

unseen theorem of circles of class 10
*Wednesday, December 17, 2014 at 12:11pm*

**math**

Malinda has a savings account set up so that her monthly interest -0.1% of the balance of her savings accounts is given to her as a check at the end of each month. If her savings account has a balance of $1,500 all year. What will be the total amount of all 12 interest checks ...
*Wednesday, December 17, 2014 at 11:44am*

**math percentage**

100 (572-498)/498 14.859437751 To the nearest tenth, what is the percent increase in attendance from last year to this year?
*Wednesday, December 17, 2014 at 11:33am*

**math**

A length of string that is 22 feet long is being cut into pieces that are 1/3 foot long. How many pieces will there be? 22x3=66 pieces
*Wednesday, December 17, 2014 at 11:01am*

**math**

A field is 225 m long and 175 m wide. It has two roads in its centre of uniform width of 5 m, one parallel to its length and the other parallel to its breadth. Find the cost of levelling the at rupees 3 per square metre
*Wednesday, December 17, 2014 at 10:00am*

**math**

?
*Wednesday, December 17, 2014 at 9:15am*

**math**

. Allie is helping her parents paint the four exterior walls of the backyard shed. The length from the front to the back of the shed is 10 ft, the width across the front and back is 8 ft, and the height is 6 ft. The door opening on the front of the shed has a width of 55 1 2 ...
*Wednesday, December 17, 2014 at 8:48am*

**7th grade math**

Can you check these problems? 1. 4x^2 + 3x - 4x +5 = 4x^2 - x + 5 2. m - n + m - n - n = 2m - 3n 3. (7x + 5 - 3y) - (-3x - 5 +4y) = 7x + 3x -3y + 4y + 0 = 10x - y = 0 4. m/8 - 9 = 5 m/8 = 5 + 9 m = 14/8 m = 7/4 = 1 3/4
*Wednesday, December 17, 2014 at 7:38am*

**^Math^**

2/3(3x+4)1/2(2x+5)=-6
*Wednesday, December 17, 2014 at 7:00am*

**math**

what is the area of surface of revelution of function x= 1/3(y^2+2)^3/2 between the 1 <= y <= 2 ?
*Wednesday, December 17, 2014 at 6:15am*

**math**

If P:Q = 5:4 and P = a+b and Q = a-b, find a:b Explain how to get the answer
*Wednesday, December 17, 2014 at 5:06am*

**Math**

1. A three-sided fence is to be built next to a straight section of river, which forms the fourth side of a rectangular region. The enclosed area is to equal 1800 ft2. Find the minimum perimeter and the dimensions of the corresponding enclosure.
*Wednesday, December 17, 2014 at 3:35am*

**math**

The ratio of the monthly incomes of A and B is 4 : 3. The ratio of their monthly expenditures is 5 : 4. If A saves one fourth of their monthly income, find their monthly savings. Please help me with this.
*Wednesday, December 17, 2014 at 1:02am*

**math**

How does the fact 36÷6=6 help you estimate the quotient of 364,573÷64?
*Wednesday, December 17, 2014 at 12:34am*

**Math**

The minimum is (3 π, 5) and the maximum is (5 π, 8). What is the amplitude and what is the period?
*Tuesday, December 16, 2014 at 11:47pm*

**math**

Annie bought the items below and received a 25% discount off the regular price of each item. The sales tax in Annie's state is 6.5%.what is the total that Annie paid for these items,including sales tax? 45.99 dress 15.99 shirt 32.99 shoes
*Tuesday, December 16, 2014 at 10:37pm*

**math**

Music square buys a guitar for $230.00 and then marks it up 150%. This store buys guitar cases for $35.00 and then marks the price up by 230%. What does Music Square charge for a guitar and a case?
*Tuesday, December 16, 2014 at 10:24pm*

**math help!!**

the first term in a geometric series is 4 and the sum of the first three terms of the series is 64. find the sum of the first eight terms of the series.
*Tuesday, December 16, 2014 at 10:06pm*

**math please hellp**

The cost in dollars of producing x units of a particular camera is C(x) = x^2 - 10000. (10 points) Find the average rate of change of C with respect to x when the production level is changed from x = 100 to x = 101. Include units in your answer. Find the instantaneous rate of ...
*Tuesday, December 16, 2014 at 10:06pm*

**math help **

the sum of the first two terms in a geometric series is 12. the sum of the first three terms of the same series is 62. determine the first four terms of the series.
*Tuesday, December 16, 2014 at 9:54pm*

**math**

there is a women standing on a building. she sees a car. angle of depresion changes from 28 to 43 . distance traveled is 230 . find the hight of the building
*Tuesday, December 16, 2014 at 9:54pm*

**Math**

The cost in dollars of producing x units of a particular camera is C(x) = x^2 - 10000. (10 points) Find the average rate of change of C with respect to x when the production level is changed from x = 100 to x = 101. Include units in your answer. Find the instantaneous rate of ...
*Tuesday, December 16, 2014 at 9:36pm*

**Math**

Another question. The floor of Raj's classroom has an area of 525 feet. The room is 12 feet high. What is the volume of Raj's classroom? I had got 6300. Is this correct? I had used the formula V = B x H.
*Tuesday, December 16, 2014 at 9:33pm*

**Math**

I want to check this. I had used formulas V = B x H and I x w x h to solve these What is the volume of the box that is 14 inches long, 7 inches wide and 10 inches high? I got 980. Am I right?
*Tuesday, December 16, 2014 at 9:28pm*

**math**

How many 3/4 cups servings will go into a 9 cup pitcher
*Tuesday, December 16, 2014 at 9:05pm*

**math**

Samantha was playing a fraction game where she could earn either positive or negative points on each turn.The lowest score she ever recorded was -26 2/3. The highest score was 8 3/4. Which. What expession represents the distance on a number line between her highest and lowest ...
*Tuesday, December 16, 2014 at 9:02pm*

**math**

The table below shows the price of purchasing salmon based on the weight being purchased. Weights(pounds) price 3:23.25 6:46.50 9:69.75 12:93.00 15:116.25 Based on the table, what is the constant of proportionality when using weight to find price?
*Tuesday, December 16, 2014 at 8:50pm*

**math**

The table below shows the price of purchasing salmon based on the weight being purchased. Table weights (pounds)/ price. 3;23.25,6;46.50,9;69.75,12;93.00 15;116.25
*Tuesday, December 16, 2014 at 8:41pm*

**math**

Tony jogs 4 2/5 miles from the gym to his home daily. If he takes a water break after 2 1/4 miles,how much further does he have to jog home?
*Tuesday, December 16, 2014 at 8:34pm*

**Math**

Eric'snotebook has 30 pages. He wants to write a number on each page. How many digits will he write when he numbers all the pages in the notebook? 9 is it correct
*Tuesday, December 16, 2014 at 8:26pm*

**Math**

Explain how you would find 2 x 2 1/3 using the distributive property.
*Tuesday, December 16, 2014 at 8:25pm*

**math**

In a recent survey, 30% of the people polled stated that they preferred the taste of a low-fat peanut butter and would but it. Based on this survey, how many people in a city of 200,000 people who eat peanut butter would be expected to buy the low-fat peanut butter?
*Tuesday, December 16, 2014 at 8:20pm*

**math**

There was a sidewalk sale at Mega Mall. Everything was marked down by30%. Rodrick bought 3 pairs of jeans originally priced at $29.95 each,a shirt originally priced at $18.50 and a pair of sandals originally priced at $32.29. The sales tax in Roderick's state is 7.25%. How...
*Tuesday, December 16, 2014 at 8:09pm*

**Math**

How many digits has a notebook with 30 pages
*Tuesday, December 16, 2014 at 8:00pm*

**math**

Mark Jacobs, owner of Jacob's Mini-Mart currently operates two stores in Atlanta. His business has been very successful, and he is now opening two new stores. He will no longer be able to manage all stores himself, so he is hiring managers for three of the four stores. He ...
*Tuesday, December 16, 2014 at 7:47pm*

**math**

You have been tasked with analyzing an extremely large amount of data and to ultimately produce a report to share with the Board of Directors. The data is currently in a text file and has over two thousand records of data. Explain how you would use Excel to analyze this data ...
*Tuesday, December 16, 2014 at 7:10pm*

**5th grade math**

rachel wants to reduce the size of her photo. Which factor listed below would scale down the size of her picture the most? A. 5/8 b. 11/16 c. 3/4 d. 8/5 trying to help my son with his math …have no idea about this.. could someone explain it to me?
*Tuesday, December 16, 2014 at 7:09pm*

**Tips Plz**

Can you plz tell me some studying tips for math. How can i study math? is not like the other subject that i can just read through and memorize it. Math is hard to study because i know know how to study math when i have a upcoming test. Plz give me tips on how to study math and...
*Tuesday, December 16, 2014 at 6:55pm*

**math**

Solve the linear system graphically (Dont graph it just solve it) x+ 2y = 8 3x+ 4y = 20
*Tuesday, December 16, 2014 at 6:52pm*

**math**

Q. The city bus is 45 feet long and 10 feet wide, the maintenance crew wants to paint two yellow strips around the outside of the bus. What will be the total length of the two yellow stripes. A. Do I divide or multiple?
*Tuesday, December 16, 2014 at 6:48pm*

**math**

A community group purchased 72 cedar tree and spruce tree seedlings to plant for an Earth Day project. The number of cedar trees was twice the number of spruce trees. How many of each type of tree seedling did the group purchase. (i think it is an equation question)
*Tuesday, December 16, 2014 at 6:41pm*

**Math**

what is the term for a relation in which each input value corresponds to exactly one output value?
*Tuesday, December 16, 2014 at 6:37pm*

**Math**

I am a number. The number in my tens place is 5 and I am less than the number in the ones place. The number in the ones place is 9
*Tuesday, December 16, 2014 at 6:20pm*

**6th grade Math**

Define a variable. Then write each phrase as an algebraic expression. 1.Three more pancakes than his brother ate. explain why is this the answer
*Tuesday, December 16, 2014 at 6:14pm*

**math**

A bolt contained 25 yards of flannel. Nikki used 9 2/3 yards to make holiday decorations. How many yards are left?
*Tuesday, December 16, 2014 at 6:12pm*

**College Math**

Brent invested $5607 in an account at 2% compounded weekly. Calculate the total investment after 7 years. Please show me the steps. I tried using this formula but it did not work. A=P(1+r/n)^6x1
*Tuesday, December 16, 2014 at 5:59pm*

**Math**

What is the value of h(x)=|x/2| when x=-2? A. -2 B.-1 C.1 D.2
*Tuesday, December 16, 2014 at 5:45pm*

**Math**

What is the result when 600 is increased b y 20%. A.612 B.620 C.720 D.1200
*Tuesday, December 16, 2014 at 5:36pm*

**math**

Mr jacob is 55 years old and Tony is 7 years old. In how many years will Mr. Jacob be 4 times as old as Tony?
*Tuesday, December 16, 2014 at 5:35pm*

**Math**

A car travels at 60 mi/hr. The function f(x)=60x gives the distance the car travels in x hours. What is the range of this function? A.y is greater than or equalt o 0 B. {0,1,2,3,...) C.{0,60,120,180,...} D.all real numbers
*Tuesday, December 16, 2014 at 5:33pm*

**Math**

Raymonds age plus his sister janice's age is 48 years. Janice's age is half Raymonds age plus six years. How old is Raymond? How old is janice
*Tuesday, December 16, 2014 at 5:29pm*

**math**

The cost of 5 similar digital cameras and 3 similar video cameras is $3213. each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he pay?
*Tuesday, December 16, 2014 at 5:25pm*

**math**

Three times as many children as adults attended a concert on Saturday. An adult's ticket cost $7 and child's ticket cost $3. the theater collected a total of $6,000. How many people bought tickets?
*Tuesday, December 16, 2014 at 5:06pm*

**math**

Tony jogs 4 2/5 miles from the gym to his home daily. If he takes a water break after 2 1/4 miles, how much father died he have to jog home?
*Tuesday, December 16, 2014 at 3:45pm*

**math**

Arlene has a piece of cloth that is 7 1/8 yards long. She cuts a piece that is 4 3/4 yards long to make a skirt. How much cloth is left?
*Tuesday, December 16, 2014 at 3:42pm*

**math**

There are 120 students involved in the school play. If 72 of the students are girls, what percent are girls
*Tuesday, December 16, 2014 at 3:39pm*

**Math**

using gauess approach 1+2+3+4+... +99 1+3+5+7+...+101
*Tuesday, December 16, 2014 at 3:12pm*

**math**

Rosa can run 4 miles in 56 minutes. How many miles does Rosa run if she runs for 42 minutes? **solve using Ratios & Rates THANK YOU!
*Tuesday, December 16, 2014 at 3:00pm*

**MATH**

SHELDON CAN RUN A MILE IN 6 4/5 MINUTES, HOW MANY MILES CAN HE RUN IN 30 MINUTES.
*Tuesday, December 16, 2014 at 2:58pm*

**Math One question! Help!**

find the rate of change for 5 + 3y = -2 Help! Please not webstites or links! thanks!
*Tuesday, December 16, 2014 at 2:29pm*

**Math**

given the function f decribed by f(x)=-x-6, find f(-7)=?
*Tuesday, December 16, 2014 at 1:56pm*

**math**

8,18,28,38,48 determine the next sequence. Is the answerer 58?
*Tuesday, December 16, 2014 at 1:49pm*

**Math**

How to simplify? log(1/2)2 + log(1/2)2^(1/2)
*Tuesday, December 16, 2014 at 1:35pm*

**Math**

A ball of string is 23m long. 8.3m is cut off. A further 3.49m is cut of string is left?
*Tuesday, December 16, 2014 at 1:24pm*

**Math**

5^6 * 5^3= is this correct 1953125?
*Tuesday, December 16, 2014 at 12:52pm*

**Math **

triangle abc has coordinates a(1 4) b( 3, -2); and c( 4, 2) find the coordinates of the image ABC after a reflection over the x- axis
*Tuesday, December 16, 2014 at 12:34pm*

**MATH**

a person has 56 brownies to package for bake sale. the brownies will be sold in packs of 3. how many brownies will NOT BE PACKAGED? CHOICES 3, 5, 4, 9
*Tuesday, December 16, 2014 at 7:59am*

**math **

find the equation of tangent to the curve (x\a)^n + (y\b)^n = 2 at the point (a, b)
*Tuesday, December 16, 2014 at 7:57am*

**one math question.**

What is the reciprocal of -5? is it -1/5 ?
*Tuesday, December 16, 2014 at 7:45am*

**Math**

pls.help me understand how to solve pythagorean theorem
*Tuesday, December 16, 2014 at 5:54am*

**math**

a rectangular pen with partitions is to be built from 800 feet of fencing. Express the area as a function of x alone. graph over a reasonable domain and find the dimensions of the pen of the maximum area that an be built under these conditions
*Tuesday, December 16, 2014 at 3:32am*

**math **

find the area of region R bounded by the curves y=3x , x=2y and 2x+y=5
*Tuesday, December 16, 2014 at 3:25am*

**math **

find the length of the curve y^2=x^3 between x=0 and x=5
*Tuesday, December 16, 2014 at 3:21am*

**Math**

I am a number between 20 and 30. When you put me into 7 equal groups, there is an odd number in each group and 2 are left over. What number am I
*Monday, December 15, 2014 at 10:26pm*

**math algebra**

A rectangular box has a length of 8 ft and a width of 2 ft. The length of the three dimentional diagonal is 10 ft. What is the height of the box? I think answer is 12.96, but not sure. any help is appreciated thanks in advance
*Monday, December 15, 2014 at 10:10pm*

**math**

A piece of plywood 24 inches wide is cut into strips 2 1/2 inches wide. How many strips of this width can be cut?
*Monday, December 15, 2014 at 10:05pm*

**Math**

Find the sum of the series -4 + 1 -1/4 + 1/16 - 1/64 + 1/256 + ... .
*Monday, December 15, 2014 at 9:39pm*

**MATH**

Find the sum 4 Σ(0.5)^n n=0
*Monday, December 15, 2014 at 9:38pm*

**Math**

Write the sum (in sigma notation) 1 + 3/2 + 2 + 5/2 + 3 + 7/2 + 4 Sigma notation?
*Monday, December 15, 2014 at 9:36pm*

**Math**

Find the general term of the geometric sequence 36 , 6 , 1 , 1/6 , 1/36 ,... .
*Monday, December 15, 2014 at 9:35pm*

**Math **

Part (a): Find the sum a+(a+1)+(a+2)+.....+(a+n-1) in terms of a and n Part (b): Find all pairs of positive integers (a,n) such that n>= 2 and a+a+1)+(a+2)+....+(a+n-1)=100.
*Monday, December 15, 2014 at 9:32pm*

**Math**

Write each of the fractions below as a division expression. Then write each fraction as a whole number or mixed number (I need help with this, because it confuses me as to how to write it as a division expression. Also sorry for no work saw.) 1. 5/4 2. 16/8 3. 14/3 4. 17/12
*Monday, December 15, 2014 at 9:31pm*

**Quick math help**

On my test over parallel lines and proportional parts in triangles today, there was a question that asked to solve for x. There was 2 problems with x in them in the triangle. So would I just have to multiply each part by two and set them equal to each other?
*Monday, December 15, 2014 at 8:36pm*

**math**

lamina in the xy plane is bounded by y=0,x=0 and 2x + y=2 has mass density at (x,y) equal to the distance to the x-axis. find the mass of the lamina. the part that is tripping me up is the mass density
*Monday, December 15, 2014 at 8:24pm*

**math**

A boat traveled 210 miles downstream and back. The trip downstream took 10 hours. The trip back took 70 hours. What is the speed of the boat in still water. What is the speed of the current?
*Monday, December 15, 2014 at 8:14pm*

**Math**

Zach had to make bracelets for Student Council. He made 10 of them on Monday and 2/5 of them on Tuesday. Zach completed the remaining 1/2 on Wednesday. How many bracelets for Student Council did Zach have to make? Tuesday = 2/5 = 4/10 of the total. Wednesday = 1/2 X 3/5 = 3/10...
*Monday, December 15, 2014 at 8:10pm*

**Math **

Let a1,a2,......a10 be an arithmetic sequence. If a1+a3+a5+a7+a9=17 and a2+a4+a6+a8+a10=15 then find a1.
*Monday, December 15, 2014 at 7:41pm*

**math**

The Eskimos are trying to generate more money because player wages are increasing. they have came up with a couple of plans: Plan 1 : they are going to open up 1850 new seats in the endzone that will be reserved for family seating. they project that they will, on average, get ...
*Monday, December 15, 2014 at 7:32pm*

**MATH**

A carpenter has a board that is 10 feet long. He wants to make 6 table legs that are all the same length. What is the longest each leg can be? Please explain how you find a sum of this problem.
*Monday, December 15, 2014 at 7:29pm*

**alegebra / math**

How much more money? The ratio of Beatriz’s savings to Hannah’s savings is 4 : 7. The ratio of Hannah’s savings to Julia’s savings is 3 : 5. The three girls have a total savings of $136. How much more money has Julia saved than Beatriz? Explain how you got ...
*Monday, December 15, 2014 at 7:26pm*

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