Tuesday

September 2, 2014

September 2, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

A series is defined by 8+4+2+1+1/2+1/4+...+1/32 Write the series in sigma notation
*Tuesday, July 22, 2014 at 2:58pm*

**Math**

A, B, C, and D are points on a line, and the lengths of the line segments are: AB = 12, BC = 4, CD = 7, and DA = 15. Which of the following is a possible order for the points? A.A,B,C,D B. A,C,D,B C. A,D,C,B D. A,C,B,D
*Tuesday, July 22, 2014 at 2:57pm*

**math**

find the sum of an A.P.of eleven terms whose first term is 1 and whose last term is 6.
*Tuesday, July 22, 2014 at 2:53pm*

**math**

A concrete sidewalk 3 feet wide, 18 feet long, and 4 inches thick contains how many cubic feet of concrete?
*Tuesday, July 22, 2014 at 2:07pm*

**math**

A page in an average newspaper has 8 columns of print. Each column consists of 160 lines and each line averages 6 words. What’s the average number of words on a full page?
*Tuesday, July 22, 2014 at 1:49pm*

**Math**

Good day please help.Iam struggling with number patterns,i must fid the rule and also give the nextthree numbers in the sequence. 31;30;27,22;15
*Tuesday, July 22, 2014 at 12:13pm*

**Math**

The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs of measurements could be correct for the lengths of the other two sides of the triangle? (Note: N + 82 =C2) A. 2.5 inches,4 inches B. 2.5 inches, 6 inches C.5inches, 8inches D.5inches, 12inches
*Tuesday, July 22, 2014 at 12:08pm*

**Math**

A man cheats 5% on the both side when buying and selling a products. find what will be the gain percent of the man?
*Tuesday, July 22, 2014 at 7:40am*

**Math 221*revised***

17 < BMI <= 22 might have a longer life span than average 23 < BMI <= 25 probably not overweight 25 < BMI <= 30 probably overweight BMI > 30 obese **Have to use height of 62 inches and 150 pounds**
*Tuesday, July 22, 2014 at 12:02am*

**Math 221**

Formula 17 < BMI <= 22 might have a longer life span than average 23 < BMI <= 25 probably not overweight 25 < BMI <= 30 probably overweight BMI > 30 obese **Have to use height of 5'2 and 150 pounds**
*Monday, July 21, 2014 at 11:54pm*

**Math**

#1 Mr. Jones got a loan for a sum of money, and at the time of repayment he owed $75 in interest. Mr. Brown borrowed three times the amount of money Mr. Jones had borrowed at the same rate of interest for twice as long a time. How much interest does Mr. Brown pay? #2 Mr. Baker...
*Monday, July 21, 2014 at 10:46pm*

**math**

#1 In an original group, the probability of choosing a girl from that group was 1/3. When 1 more girl joins the group, the probability of choosing a girl out of the group changes from 1/3 to 3/7. How many boys were there in the group orginally? a. 1 b. 2 c. 3 d. 4 e. 5 #2 A ...
*Monday, July 21, 2014 at 10:27pm*

**math**

f(x)=2x-3
*Monday, July 21, 2014 at 9:50pm*

**math**

If the price of an item, after adding the 7.6% sales tax, is $53.80, what is the price of the item, before tax?
*Monday, July 21, 2014 at 9:28pm*

**math**

For the following pair of functions, f(x)-x+2, g(x)-√x-1 find each of the following and state its domain: a.) find (f+g)(x) b.)find (f-g) (x) c.) find (fg)(x) d.) find (ff)(x) e.)Find (f/g)(x)
*Monday, July 21, 2014 at 9:06pm*

**math **

a 20ft flag pole casts a shadow 30ft long. the pole is 25ft from the wall. how high is the wall in the nearest tenth?
*Monday, July 21, 2014 at 8:38pm*

**math**

If 25 times were moved from Box A to Box B, there would be an equal number of dimes in both boxes. If 100 dimes were moved from Box B to Box A, the ratio of dimes in Box A to Box B would be 7:2. What was the original number of dimes in Box A?
*Monday, July 21, 2014 at 8:35pm*

**math**

15. The sum of five unequal whole numbers is 90. The second largest of these five numbers can be at most A.19 B.41 C.43 D.89 please explain and show work.
*Monday, July 21, 2014 at 7:29pm*

**Math 221**

What is the difference between a conditional and literal equation?
*Monday, July 21, 2014 at 2:09pm*

**math**

Susan’s test scores are 93, 85, 88, and 90. What does she need to score on the next test to raise her average to 90?
*Monday, July 21, 2014 at 1:53pm*

**Math 221**

What is the difference between a conditional and literal equation?
*Monday, July 21, 2014 at 1:33pm*

**Math 221**

What is the equation for W? P=2L+2W
*Monday, July 21, 2014 at 1:21pm*

**Math 221**

P=2L+2W
*Monday, July 21, 2014 at 11:58am*

**Math**

Lisa's livingroom is 17 feet wide. If the length is 4 feet more than twice the width, what is the area of her livingroom?
*Monday, July 21, 2014 at 9:30am*

**math**

what is the radius of convergence for the sum n=1 to infinity of 3(-1)^n(n)(x^n)?
*Monday, July 21, 2014 at 8:34am*

**Math**

A homeowner is laying sod in her lawn. The lawn is a rectangle with dimensions of 28'*18'. If one piece of sod is a rectangle with dimensions of 60cm*40cm, approximately how many pieces of sod should the homeowner order?
*Sunday, July 20, 2014 at 10:35pm*

**Math 221**

Solve the inequality for v. 6v+6 > -30 - >Greater than or less than symbol -
*Sunday, July 20, 2014 at 10:27pm*

**Math 221**

Write the following as an inequality. 9 is greater than y , and is less than or equal to y
*Sunday, July 20, 2014 at 10:09pm*

**Math 221**

Solve the inequality for v. 6v+6 > -30 -
*Sunday, July 20, 2014 at 10:07pm*

**math**

The distriubution of the SAT scores in math for an incoming class of business students has a mean of 580 and standard deviation of 25. Assume that the scores are normally distributed. a. Find the probability that an individual's SAT score is less that 550. b. Find the ...
*Sunday, July 20, 2014 at 9:10pm*

**Math 221**

2 is less than y , and 7 is greater than y or equal to Use only once in your inequality.
*Sunday, July 20, 2014 at 8:35pm*

**Math**

Solve the inequality for x. 29> 5+4x -
*Sunday, July 20, 2014 at 8:24pm*

**Math 221**

Joe rented a truck for one day. There was a base fee of $15.99 , and there was an additional charge of 97 cents for each mile driven. Joe had to pay $295.35 when he returned the truck. For how many miles did he drive the truck?
*Sunday, July 20, 2014 at 8:14pm*

**Math**

Financial aid students must pass 2/3 of their courses each term in order to continue their aid. If a student is taking 18 hours, how many hours must be passed?
*Sunday, July 20, 2014 at 6:25pm*

**Math**

I need some help with solving this problem: Find the solution set for the system of linear inequalities. x – y ≥ 3 x + 2y ≥ 6
*Sunday, July 20, 2014 at 3:07pm*

**Math**

So I've been working on solving this system by addition/subtraction and I just can't get the right answer. Her is the system of equations I was given to solve by add/sub: 3x – y = –12 x + 2y = –18
*Sunday, July 20, 2014 at 3:04pm*

**Math**

I need to use the Gaussian Elimination to solve a system of equations, but I have no idea on how to do that. I remember doing these in high school, but since its been a while I can't remember exactly how to do it. Here's the system of equations I need to solve using it...
*Sunday, July 20, 2014 at 2:33pm*

**College math**

A rock is thrown from the top of a tower that is 400 feet tall. If its height above the ground can be modeled by h = -16t2 + 64t +400 where h is in feet, and t is in seconds. To the nearest tenth of a second, how long does it take the rock to reach the ground? To the nearest ...
*Sunday, July 20, 2014 at 1:40pm*

**College math**

7) A rectangular pen can be constructed using the side of a barn as one boundary and 5500 ft. of fence to make the other three sides. Find the length and width of the rectangle to make the largest area. Hint: Draw a picture- and label the sides of the rectangle. And solve the ...
*Sunday, July 20, 2014 at 1:38pm*

**business math**

The Consumer Electronics show reports that the HP Spectre laptop computer starts at $99.70 for a base configuration. The model displayed at its recent show costs $1,361, $124 more than the comparable 13-inch Apple MacBook Air. If Computers-R-Us buys the HP Spectre at the show ...
*Sunday, July 20, 2014 at 1:27pm*

**math**

the temperature has been falling at a constant rate of 4 degrees F per hour.describe the temperature 4 hours ago
*Sunday, July 20, 2014 at 4:46am*

**Math**

A tank is filled with an intake pipe that will fill it in 5 hours and an outlet pipe that will empty it in 15 hours. If both pipes are left open, how long will it take to fill the empty tank?
*Sunday, July 20, 2014 at 3:40am*

**Math**

Christian drives 120 miles in the same length of time while Julius drives 200 miles. If the speed of Julius exceeds that of Christian by 35mph, find the speed of each
*Sunday, July 20, 2014 at 3:40am*

**Math**

The Timuga swimming pool, of Manila City has two pumps it uses to fill the pool. If one pump takes 12 hours to fill the pool and the other pump alone takes 16 hours to fill the pool, how long will it take both pumps working together to fill the pool?
*Sunday, July 20, 2014 at 3:36am*

**Math**

In the tradition of their Native American ancestors, Decorah Custom Canoes specializes in creating handcrafted canoes using the finest natural materials. Whether they are from birch bark or cedar, all canoes are custom-built from native wood. Each piece is a work of art, and ...
*Saturday, July 19, 2014 at 5:40pm*

**math**

find the montly payment needed to amortize principal and interest for a 130000 fixed rate mortgage with a 10.5% rate and a 30 year term
*Saturday, July 19, 2014 at 3:04pm*

**math**

Rico works for a landscaping company. He will enclose a square garden, using a full 50 ft roll of wire fencing. What could the largest dimension of the garden be? Sketch and label the garden, then calculate perimeter to verify your answer.
*Saturday, July 19, 2014 at 1:16pm*

**math**

5. The sum of 7 unequal positive integers is 61. What is the largest possible value that any of those integers can have? A.55 B.40 C.39 D.13 E.9 please show work
*Saturday, July 19, 2014 at 12:58pm*

**math**

The sum of the first n odd number is n^2. The sum of the first 30 odd numbers is A. 60 B. 90 C. 300 D. 900 Thank you for the help in advance =)
*Saturday, July 19, 2014 at 11:27am*

**Math **

Shelly delivers the weekly local paper to neighborhoods in her town. House numbers are even on one side of the street and odd on the other. Shelly delivers an equal number of papers to both sides of the street. Although she always aims for the front doorstep, Shelly typically ...
*Saturday, July 19, 2014 at 6:08am*

**math**

Evaluate: 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8 + 4^8
*Saturday, July 19, 2014 at 12:12am*

**math**

21 foot long and 12 feet wide 8foot high how many pieces of plywood will it t a ke to cover
*Friday, July 18, 2014 at 10:45pm*

**MATH**

10 5/12 ÷ 1/10 =
*Friday, July 18, 2014 at 8:42pm*

**Math**

A homeowner is laying sod in her lawn. The lawn is a rectangle with dimensions of 28'*18'. If one piece of sod is a rectangle with dimensions of 60 cm*40 cm, approximately how many pieces of sod should the homeowner order?
*Friday, July 18, 2014 at 5:40pm*

**Math Question**

Five students measure their height using different units. Andrew is 176 cm, Brittney is 5'4", Calvin is 1.8 yards, Don is 54 inches, and Elisha is 1.6 metres. Arrange the students from shortest to tallest. I don't know how to deal with different units! A truck ...
*Friday, July 18, 2014 at 4:59pm*

**Math**

How do I do imperial to metric conversions?! Metric to imperial is easy but I don't know how to do it the other way around!!! Please help me! a) 6yd to meters b) 3mi to kilometers c) 80in to meters d) 3.8ft to meters e) 5'3" to meters (" is foot right?) f) 0....
*Friday, July 18, 2014 at 4:47pm*

**Math**

Convert 110 yards to miles. 110yd*0.9144m/1yd=100.584m Someone told me there is mistake but I can't figure it out?
*Friday, July 18, 2014 at 4:42pm*

**Math**

Each of the following objects have been measured with inappropriate units. Convert them to more suitable units. (Please check my work and see if the units are correct for the situation?) a) The thickness of a dime is 0.00122m 0.00122m*100cm/1m = 0.122cm b) The height of a ...
*Friday, July 18, 2014 at 4:38pm*

**math**

Last month, Nate spent 12% of his paycheck on car repairs and 25% of the remainder on food. He gave $1,320 of the remaining money to his parents and then bought a computer on sale. If the usual price of the computer was $825 and the discount was 20%, how much money did Nate ...
*Friday, July 18, 2014 at 1:16pm*

**math**

what is the correct letter name for <1below
*Friday, July 18, 2014 at 12:57pm*

**math**

Last month, Nate spent 12% of his paycheck on car repairs and 25% of the remainder on food. He gave $1,320 of the remaining money to his parents and then bought a computer on sale. If the usual price of the computer was $825 and the discount was 20%, how much money did Nate ...
*Friday, July 18, 2014 at 12:19pm*

**math**

Rufus is in charge of lighting a play. Half the lights he uses are white. Of the remaining lights, 1/3 have red filters, and 4 have blue filters. The 10 lights left have yellow filters. How many lights does Rufus use for the play?
*Friday, July 18, 2014 at 12:14pm*

**math**

There are 4 pieces of paper, numbered 10 to 13, in a hat. After another numbered piece of paper is added, the probability of picking a number between 10 and 13 inclusive is 4/5. Which of the following numbers could be the number on the new piece of paper? A. 10 B. 11 C. 12 D. ...
*Friday, July 18, 2014 at 11:44am*

**math**

Between 3 P.M and 3:30 P.M., the minute hand of a clock moves 180 degrees. How many degrees does the hour hand move during that same period of time?
*Friday, July 18, 2014 at 10:55am*

**math**

Jack and Jill went to Burger Queen. Jack bought 2 hamburgers and 3 shakes for $4.21 while Jill bought 3 hamburgers and 2 shakes for $5.24. The cost of 1 hamburger and 1 shake is: A) $1.03 B) $1.54 C) $1.89 D) $9.45
*Friday, July 18, 2014 at 10:53am*

**math**

Mr. Jones got a loan for a sum of money, and at the time of repayment he owned $75.00 in interest. Mr. Brown borrowed three times the amount of money Mr. Jones had borrowed at the same rate of interest for twice as long a time. How much interest does Mr. Brown pay?
*Friday, July 18, 2014 at 10:32am*

**math**

Jack and Jerry can complete a job in 2 hours when working together.If Jack requires 6 hours to finish the job alone,how many hours does Jerry need to finish the job alone?
*Friday, July 18, 2014 at 10:06am*

**MATH**

If the lengths of the sides of a triangle are in the ratio 8:4:5 and its perimeter is 48cm find its area
*Friday, July 18, 2014 at 9:25am*

**math**

convert 0.12 to fraction
*Friday, July 18, 2014 at 7:28am*

**MATH WORD PROBLEM**

TERRY HAS A BOARD THAT IS 4YARDS LONG. hOW MUCH NEEDS TO BE SAWN OFF TO MAKE THE BOARD 2FEET 8INCHES LONG?
*Friday, July 18, 2014 at 3:33am*

**Math**

The ratio of dogs to cats at the pet storeis 1:4. If the pet shop has 7dogs, how many cats does it have?
*Friday, July 18, 2014 at 3:09am*

**math**

1. Mrs. Macdonald wants to put a uniform border of tulips around the outside of her vegetable garden. Her vegetable garden is 20m by 28m. This border will look best if the area of the tulips border equal to the area of the garden. How wide should the tulip border be (accurate ...
*Friday, July 18, 2014 at 12:20am*

**Math**

If your car gets 18 miles per gallon of gas, how many pints of gas will you need to take a 698 mile trip
*Thursday, July 17, 2014 at 11:53pm*

**Math 221**

In Cowling's Rule If a doctor prescribes 75 milligrams of tamiflu for an adult, then how many milligrams would she prescribe for a six-year-old child using Cowling's rule?
*Thursday, July 17, 2014 at 10:44pm*

**math**

Craig made a cylinder-shaped sand candle.The radius of it base is 4 cm, its height is 18 cm.How many cubic centimeters of sand did he use?
*Thursday, July 17, 2014 at 10:43pm*

**math**

One package of water plants is recommended for 3000 cubic centimeters of water in a fish tank.How many packages of plants will be needed for a 45 cm by 70 cm tank that is filled to a depth of 10 cm?
*Thursday, July 17, 2014 at 10:42pm*

**Math 221**

If a doctor uses Cowling's rule to prescribe 187 milligrams of Tamiflu to a child when she would prescribe 500 milligrams to an adult, then how old is the child?
*Thursday, July 17, 2014 at 10:40pm*

**math**

Lena plans to fill her 22-cm cube to within 2 cm of the top.How many cubic centimeters of dirt will Lena need?
*Thursday, July 17, 2014 at 10:28pm*

**math**

Each term in a sequence of numbers, except for the 1st term, is 2 less than the square root of the previous term.If the 3rd term of this sequence is 1, what is the first term?
*Thursday, July 17, 2014 at 9:58pm*

**Math 221**

The question is using the Cowling's Rule for children's dosage of medication. Explain what the variables in the formula represent and show all steps in the computations. Part A -An adult dose is 75mg Part B- 500mg (adult) 187mg (child)
*Thursday, July 17, 2014 at 9:37pm*

**math**

Carrie can inspect a case of watches in 5 hours. James can inspect the same case of watches in 3 hours. After working alone for 1 hour, Carries stops for lunch. After taking a 40 minute lunch break, Carrie and James work together to inspect the remaining watches. How long do ...
*Thursday, July 17, 2014 at 9:01pm*

**Math**

Sale prices at the Ajax Outlet Store are 20% above original prices. On Saturdays a discount of 25% off the sale price is given. What is the Saturday price of a coat whose original price is $145? I need help.
*Thursday, July 17, 2014 at 8:12pm*

**math**

A 6.5 foot tall person casts a shadow that is 10 feet long. How tall is a building that casts a shadow that is 43 feet long?
*Thursday, July 17, 2014 at 8:11pm*

**math**

mr. lee had a bag of red beans and a bag of black beans. 20% of the total number of beans were black, and there were 180 ounces more red beans than black beans. he transferred some red beans to the bag containing black beans, so that, the bag now contained 30% of the total ...
*Thursday, July 17, 2014 at 8:01pm*

**math**

One package of water plants is recommended for 3000 cubic centimeters of water in a fish tank. How many packages of plants will be needed for a 45cm by 70cm tank that is filled to a depth of 10cm? please show work.
*Thursday, July 17, 2014 at 5:08pm*

**math**

Rosa is working on rectangular fish tank that is 15 cm wide and 20 cm long. How much tape will she need to put all around the top of the tank? please show work
*Thursday, July 17, 2014 at 5:00pm*

**Math**

How do I write metric caliper measurements as decimals?
*Thursday, July 17, 2014 at 4:36pm*

**Math**

Some of these conversions have an error. If there is an error, explain the nature of the error and complete the conversion correctly. (I redid all the questions and only the first one looked incorrect to me. Can you look it over and point out any other mistakes? Thank you) a) ...
*Thursday, July 17, 2014 at 4:34pm*

**Math**

How do I measure the circumference of a circle without the given radius/diameter? How do I measure the actual distance between Grande Prairie and Medicine Hat? Map Scale: 1:18,300,000
*Thursday, July 17, 2014 at 4:28pm*

**Math 10**

A trundle wheel can be used to measure the walking distance between two locations. a) If the diameter of a trundle wheel is 45 cm, how far will a person have walked when the wheel makes one full rotation? b) If a person walks for 0.7 km, how many times has the wheel rotated? ...
*Thursday, July 17, 2014 at 3:17pm*

**math**

A Number N Divides Each Of 17 And 30 With The Same Remainder In Each Case. What Is The Largest Value N Can Have?
*Thursday, July 17, 2014 at 2:37pm*

**Math**

Part A -An adult dose is 75mg Part B- 500mg (adult) 187mg (child) How I come up with a formula for this problem?
*Thursday, July 17, 2014 at 12:59pm*

**math**

In the equation q-12=89 what is the value of q
*Thursday, July 17, 2014 at 12:06pm*

**math**

find the value... lim (tan 2x- x)/(3x- sin x) x>0
*Thursday, July 17, 2014 at 11:49am*

**math (xi)**

lim [sec(x+h)-sec x]/h h>0
*Thursday, July 17, 2014 at 11:45am*

**math**

The annual interest rate for a customer’s loan of $425 is 15.75%. What is the total dollar amount to be repaid on the loan, including principle and interest, for the entire year?
*Thursday, July 17, 2014 at 10:54am*

**math**

A school has purchased a large field that has a square area of 19,500 ft2. What is the approximate length of each side of the square area? Round your answer to the nearest foot. a. 140 ft c. 142 ft b. 139.64 ft d. 139 ft
*Thursday, July 17, 2014 at 8:35am*

**math**

The sum of the first 20 terms of an arithmetic series is identical to the sum of the first 22 terms. If the common difference is -2, find the first term.
*Thursday, July 17, 2014 at 7:56am*

**math**

a 40 year building programme for new houses began in 1951(year 1) and finished in 1990 year (40). The number of houses built each year form an A.P. With the first term 'a' and the common difference 'd'. Given that 2400 new houses were built in 1960 and 600 new ...
*Thursday, July 17, 2014 at 7:49am*

**math**

The base of a rectangular prism is 6 inches - 9 inches. what is the lateral area of the prism
*Wednesday, July 16, 2014 at 10:47pm*

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