Tuesday

October 6, 2015
**math**

The product of two rational numbers is -28/81 if one number is 14/ 27 find the other
*Wednesday, July 8, 2015 by neha *

**math**

how to write algebraic verification of 4 sectors of the circle
*Wednesday, July 8, 2015 by samar*

**Math**

If there are 6 tricycle wheels and the ratio of tricycles to the tricycle wheels is 1:3, how many tricycles are there?
*Tuesday, July 7, 2015 by Jul *

**Math **

Joe can type 11 words in 8 secs. at this rate, how many words can he type in two minutes ?
*Tuesday, July 7, 2015 by Jul *

**Math**

a ribbon is 40 inches long. we want to cut the ribbon into pieces, each pieces will be 2/3 of an inch. how many pieces will we have ?
*Tuesday, July 7, 2015 by Jul*

**Math**

From the top of the Metro Building, the angle of elevation of the top of the Gammapro Building is 24° and the angle of depression to the foot of the Gammapro Building is 56°. If the buildings are 45 m apart, determine the height of each building to the nearest meter.
*Tuesday, July 7, 2015 by Amanda*

**Math**

Two trees in a park are 14.80 meters apart. An observer, whose eye line is 1.80 m above the ground, is standing halfway between the trees. The angles of elevation of the tops of the trees from the observer’s eye line are 17° and 23°. Determine the height of each ...
*Tuesday, July 7, 2015 by Amanda*

**Math**

From the window of one building, Matt finds the angle of elevation of the top of a second building is 33° and the angle of depression to the bottom of the same building is 55°. The buildings are 25 meters apart. Find the height of the second building to the nearest ...
*Tuesday, July 7, 2015 by Amanda*

**Math**

Changing Shapes 1.)Suppose you are going to be designing a logo for a club at your school. To prepare for this product, draw a non-rectangular shape in the coordinate plane so that portions of the shape are in each of the four quadrants. Explain what would happen to your ...
*Tuesday, July 7, 2015 by John Dosley*

**math**

graphing a line through a given point with a given slope. graph a line with slope -1 passing through the point(1, -3) Thank you just do not understand sorry.
*Tuesday, July 7, 2015 by Mary Ann *

**math**

Sam is four years younger than Jo. But in five years' time Jo will be twice Sam's age now. How old are they now?
*Tuesday, July 7, 2015 by bob*

**Math (Finite)**

A calling card offers two methods of paying for a phone call. Method A charges $0.02 per minute but has a $0.6 connection fee. Method B charges $0.045 per minute but has no connection fee. Write the equations that show the total cost, y, of a call of x minutes for methods A ...
*Tuesday, July 7, 2015 by Stephanie*

**Math**

My hundreds digit is 4 less than my tens digit. My ten thousand digit is 6 greater than my hundreds digit. My thousands digit is 5 less than my ten thousands digit and my ones digit is 6 greater than my hundreds digit. If my tens digit is 7, Question: What number am i?
*Tuesday, July 7, 2015 by Maitess*

**Math**

My hundreds digit is 4 less than my tens my tens digit. My ten thousand digit is 6 greater than my hundreds digit. My thousands digit is 5 less than my ten thousands digit and my ones digit is 6 greater than my hundreds digit. If my tens digit is 7, what number am i?
*Tuesday, July 7, 2015 by Maritess*

**Math statistics **

A mountain search and rescue team received an average of 600 calls per year. Use the poisson dustribution to find the probability that on a randomly selected day, they will receive 1 or more calls.
*Tuesday, July 7, 2015 by Lizzy*

**math**

I am 5 digit greater 60000, but less than 70000.My ones digit is less than my 10000 digit on my other digit are the same.The sum of digit is 23.What is my number
*Tuesday, July 7, 2015 by Kent Lloyd Abarquez*

**Math statistics **

Ten percent of Americans adults are left-handed. A statistics class has 50 students in attendance. Find the standard deviation for the number of left-handed students in such classes of 50 students
*Tuesday, July 7, 2015 by Lizzy*

**Math statistics **

For a certain computer program a password must be exactly 5 characters long. The first character must be a mnber 0-8, the second, third and fourth character can either be one of the 26 letters or a number 0-5, the fifth character has to be exactly the same as the second ...
*Tuesday, July 7, 2015 by Lizzy*

**Math Statistics **

In the power ball lottery game, winning the jackpot requires that you select the correct five unique numbers between 1 and 58 inclusive (don't have to match the order) and, in a separate drawing, you must also select the correct single nber between 1 and 13 inclusive. Find...
*Tuesday, July 7, 2015 by Lizzy*

**math**

write 515% = 3/10 as a mixed number or fraction. answer in simplest terms
*Monday, July 6, 2015 by anne*

**math**

simply 375 over 200
*Monday, July 6, 2015 by shirri*

**Math (Finite)**

5. Let A = 1 4 2 3 and B = 3 -2 4 6 calculate the entry in the second row, second column in AB
*Monday, July 6, 2015 by Stephanie*

**math**

pi1:2x-y-4=0
*Monday, July 6, 2015 by Dheeraj Kumar*

**math**

What is the payoff for a loan with monthly payments of $359.69, after 26 payments have been made, contract was for 3yrs. at an annual interest rate of 9.2%? need to figure out payoff with 10 payments left, not working out for me
*Monday, July 6, 2015 by crash*

**math**

Find the weight of a 60 kg astronaut on earth?
*Monday, July 6, 2015 by Aviwe*

**math**

Kim has fraction 1 over 2 cup of almonds. She uses fraction 1 over 8 cup of almonds to make a batch of pancakes
*Monday, July 6, 2015 by devin*

**Math**

A reel of electric wire 150 metres long cut into two pieces. One is 40 metres shorter than twice the length of the other. How long is each piece.
*Monday, July 6, 2015 by PHil*

**Math**

Find the length of the curve r(t)=sqrt(2)ti + e^tj + e^-tk, 0<=t<=1 Please explain how it happened. Thank you
*Monday, July 6, 2015 by Rick*

**math**

The united ages of a man and his wife are six times to united ages of their children. Two years ago their united ages were ten times the united ages of their children and six years hence their ages will be three times the united ages of their children. How many children have ...
*Monday, July 6, 2015 by omkar bisht*

**Math**

1. JUGGLING NUMBERS From old newspapers cut out digits 0 to 9 and stick them in a creative manner. Make sure the digits are not too small. Juggle the digits to make the numbers described below. The challenge is you can use a digit only once in a number. 1) Make the smallest ...
*Monday, July 6, 2015 by Hasitha*

**math**

you invested $8000 between two accounts paying 7% and 9% annual interest, respectively. If the total interest earned for the year was $600 how much was invested at each rate?
*Sunday, July 5, 2015 by Terry*

**Math**

'Write down the equation of the line passing through 2,1 and perpendicular to 2x-4y-1=0 I tried figuring out what to do but I don't know how to.
*Sunday, July 5, 2015 by fay.... pls help*

**math**

The heights of American women between the ages of 18 and 24 are approximately normally distributed. The mean is 64.1 inches, and the standard deviation is 2.5 inches. What percentage of such women are over 5 feet 8 inches tall? z = (68 - 64.1)/2.5 = + 1.56 = P(z > 1.56) (...
*Sunday, July 5, 2015 by Comet*

**Math**

What is your expected value for a game whose probabilities and outcomes are given in the following table? Assume the wager is $1. Proability 0.2 = you win 2 times wager 0.3 = you win your wager 0.3 = you lose 2 times your wager 0.2 = you win nothing *Having trouble setting up ...
*Sunday, July 5, 2015 by Comet*

**math **

Country A has a growth rate of 2.1% per year. The population is currently 5,747,000 and the land area of Country A is 36,000,000,000 square yards. Assuming this growth rate continues and is exponential, after how long will there be one person for every square yard of land.This...
*Sunday, July 5, 2015 by Leslie*

**Math**

Veronica rolls a pair of dice twice. On both rolls, the sum is 9. Are these independent events, dependent events, or neither? Explain your answer.
*Sunday, July 5, 2015 by Anonymous*

**math**

integral x^3/ (x^2 +1)^1/2
*Sunday, July 5, 2015 by fatmah*

**Math**

Show that the curve with parametric equations x=tcost, y=tsint, z=t lies on the cone z^2=x^2+y^2
*Sunday, July 5, 2015 by Joe*

**Math**

Suppose you start at the point (0,0,3) and move five units along the curve x=3sint, y=4t, z=3cost in the position direction. Where are you now?
*Sunday, July 5, 2015 by Tads*

**Math**

Find equations of the osculating circles of the ellipse 9x^2+4y^2=36 at the points (2,0)&(0,3).
*Sunday, July 5, 2015 by Sean*

**Math**

Find the curvature x=t^2, y=t^3 Using k=|xÿ-yx|/(x^2+y^2)^3/2
*Sunday, July 5, 2015 by Sean*

**math**

Shreya walks 2/3 km to her school and rosy walk 3/4 km to the school who has to walk a longer distance to reach the school and by how much
*Sunday, July 5, 2015 by neha *

**Math**

If Rita can type 55 words a minute, how many minutes to the nearest minute will it take her to type a 1695-word article?
*Sunday, July 5, 2015 by Saira*

**math**

car rental is 36.00 day, 100 miles free for each day of rental plus .20 per mile for each mile over allowance and i went 450 miles total how much is total for rental car
*Saturday, July 4, 2015 by julie lockhart*

**MATH**

if alpha and beta are zeroes of the polynomial x2-5x+6,then find the polynomial whose zeroes are root 3 and -root 3
*Saturday, July 4, 2015 by ANGEL*

**Math**

A man left 6M to his children and grandchildren, 7 in all. The children received 1/3 of it which is 200,000 more a piece than what each of the grandchildren received. How many children were there?
*Saturday, July 4, 2015 by Anne B.*

**math**

My tenths digit is twice greater than my thousandths place.My hundredths digit is the sum of my tenths and thousandths digits.Who am i?
*Saturday, July 4, 2015 by mica*

**Math - **

A)For a certain commodity the demand equation is given by D=-3p+20. At the price of $1, four units of the commodity are supplied.If the supply equation is linear and the market price is $4, find the supply equation. B) how many litres of a 70% alcohol solution must be added to...
*Friday, July 3, 2015 by Astro*

**Math**

1) Last Tuesday, Galaxy Cinemas sold a total of 170 movie tickets. Tickets can be bought in one of 3 ways: a child admission costs $5, student admission cost $6 all day, and regular admissions are $8.50. Proceeds totalled $970. The number of child tickets sold was double that ...
*Friday, July 3, 2015 by Nray*

**Math**

There is no difference between the number of males or females who go to their primary care physician for an annual exam.
*Friday, July 3, 2015 by Henry*

**Math equation**

A rectangle has a width w that is a 5 units longer than its lengthL. Which equation expresses the rectangle's area, A?
*Friday, July 3, 2015 by Anonymous*

**MATH**

Is it possible for the graph of a polynomial function to have no y-intercept? No x-intercept?
*Friday, July 3, 2015 by leslie*

**math**

How is the range of a polynomial function related to the degree of the polynomial?
*Friday, July 3, 2015 by leslie*

**math age problem**

Three years ago, Jim was half as old as Tom. Three years from now, Jim will be half as old as Michael. If Jim's age now is half as old as Michael's age three years ago, How old are Jim, Tom and Michael at present?
*Friday, July 3, 2015 by mar*

**math**

solve 4^(x+2)=2^x
*Thursday, July 2, 2015 by Leslie*

**math **

If you get mixed nuts with cashews that cost $6.25 lb. and if you get mixed nuts with peanuts @ $2.30 lb. But if I just want 1/2 lb. of mixed nuts for $1.70 how much of each would be included? How many lbs. of cashews and how many lbs of peanuts.
*Thursday, July 2, 2015 by Leslie*

**math**

5t^2-7t=1 find exact solution
*Thursday, July 2, 2015 by Peter*

**math**

If you get mixed nuts with cashews that cost $6.25 lb. and if you get mixed nuts with peanuts @ $2.30 lb. But if I just want 1/2 lb. of mixed nuts for $1.70 how much of each would be included?
*Thursday, July 2, 2015 by Leslie*

**Math**

Tiffany is constructing a fence around a rectangular tennis court. She must use 300 feet of fencing. The fence must enclose all four sides of the court. Regulation states that the length of the fence enclosure must be at least 80 feet and the width must be at least 40 feet. ...
*Thursday, July 2, 2015 by Lily*

**Math**

The distance between two cities on a map is 4 inches. The actual distance between the two cities is 24 miles. What is the scale used on the map? If the scale on a different map of the same area is inch = 1 mile, how many inches separate the same two cities?
*Thursday, July 2, 2015 by anonymous*

**Math**

Mary is getting paid $383.00 every two weeks at her job. How much does she make hourly? How would I figure this out?
*Thursday, July 2, 2015 by Bob*

**Math**

Hi Steve, Sorry I did not explain my self better than I did. See this is the second time taking this Statistic course,and I have no idea how to do anythings. The question is: Hi Steve, It is a graph where there is a line on point is on -3 and the other point is on +5 It says ...
*Thursday, July 2, 2015 by Mary Ann *

**Finite Math**

Pivot the matrix about the element 4 1 3 5 5 4 2
*Thursday, July 2, 2015 by Amanda*

**Finite Math **

State and perform the next elementary row operations that should be performed to put the matrix in diagonal form 1 2 -3 3 2 -4 6 8 3 6 15 12
*Thursday, July 2, 2015 by Krystal*

**math**

A reading list contains 3 historical books and 4 science-fiction books. What is the probability that Tena will randomly choose a historical book for her first report and a science-fiction book for her second?
*Thursday, July 2, 2015 by nate*

**Math**

I need help with these few questions on my homework please :) 1. How much money would you need to pay to receive a payout annuity of $8,503.05 annually for 10 years, assuming your money earns 7.5% compounded annually? Assume that your payments increase annually by a 3% COLA. ...
*Thursday, July 2, 2015 by Macy*

**Math**

I need help with these few questions on my homework please :) 1. How much money would you need to pay to receive a payout annuity of $8,503.05 annually for 10 years, assuming your money earns 7.5% compounded annually? Assume that your payments increase annually by a 3% COLA. ...
*Thursday, July 2, 2015 by Macy*

**math**

can anyone help me visualize multidigit multiplication ? for example let us consider this question 245 X345 here when we multiply 4 at tens place with 5 with at ones place we do it as if it onesXones multiplication but place the product at tens place and same with 3 at ...
*Thursday, July 2, 2015 by Help me out !!!*

**math**

what is the unit digit in (7^95 - 3^58) ?
*Thursday, July 2, 2015 by medlin*

**Math**

The adjacent sides of parallelogram are 26cm and 28cm and one of its diagonal is 30cm. Find the area of the parallelogram by using heron's formula
*Thursday, July 2, 2015 by Anonymous*

**Math**

If 3x+2y=12 and xy=6,find 27x^3+8y^3
*Thursday, July 2, 2015 by Meera*

**Math**

The adjacent sides of parallelogram are 26cm and 28cm and one of its diagonal is 30cm. Find the area of parallelogram by using heron's formula
*Thursday, July 2, 2015 by Meera*

**Math**

good evening, I was wondering if you could direct me in right direction to lean how to evaluate a line that is there with two numbers and I have to find out how to write it. Either by factions or whole numbers. Thank you for you time.
*Wednesday, July 1, 2015 by Mary Ann *

**Math**

An invoice for a camcorder that cost $1210 is dated August 2, with sales terms of 4/10 EOM. If the bill is paid on September 5, how much is due for the net amount due?
*Wednesday, July 1, 2015 by Pam*

**Math**

Solve the system of equations using linear combination. a+c=9 8a+4.5c=58
*Wednesday, July 1, 2015 by Sara*

**Math**

A bag contains 3 red marbles, 4 blue marbles, and 5 white marbles. What is the probability of pulling out two red marbles in a row if none are replaced? A. 1/22 B. 1/16 C. 1/24 D. 1/5
*Wednesday, July 1, 2015 by Anonymous*

**Math**

Find the value of the following" 10!7! over 12!5! If your answer is not an integer, write it as an exact fraction. Thank you
*Wednesday, July 1, 2015 by Mary Ann *

**math in distress**

I am new to this site. Can someone tell how to respond to tutors. thanks Steve and Sue for answering expeditiously
*Wednesday, July 1, 2015 by toya5 *

**math in distress**

A total of 1,200 students attended Top View high school the ratio of teachers to students is 1:30. How many teachers are there in the school? I did it this way... x + 30x = 1200 31x/31 = 1200/31 1200/31 x= 38.70 = 39 __
*Wednesday, July 1, 2015 by toya5 *

**math in distress**

A salesman drove 480 miles from Pittsburgh to Hartford. The next day he returned the same distance to Pittsburgh in half an hour less time than his original trip took, because he increased his average speed by 4 mph find his original speed. Okay... I did it this way...480/2= ...
*Wednesday, July 1, 2015 by toya5 *

**Math**

If a^x=b^y=c^z and b^2=ac then prove that : 1/x+1/z=2/y
*Wednesday, July 1, 2015 by Meera*

**Math**

if a=√5+1/√5-1 and b=√5-1/√5+1 , find a^2+ab+b^2/a^2-ab+b^2
*Wednesday, July 1, 2015 by Meera*

**Math**

If 3x+2y=12 and xy=6,find 27x^3+8y^3
*Wednesday, July 1, 2015 by Meera*

**math in distress**

There are 5 kids, the median age is 9. Two of the kids are 5. The range of all the kids are 7. What is the age of the 2nd to the oldest? 1. 5 2. 5 3. 9 4. 5. 12 (7+5) =12 I have went around in circles with this. Please help!!!
*Wednesday, July 1, 2015 by toya5 *

**math in distress**

If a textbook weighs 2 1/2 pounds and the notebook weighs 4 ounces. You bought 5 textbooks and and 5 notebooks what is the total weight in pounds? 2.5 pds 4 oz 12 1/2 *5 textbooks *5 + 20 oz ___ ____ __________ 12 1/2 20 oz I'm confused after that. Pleeeaase help!
*Wednesday, July 1, 2015 by toya5*

**math**

A quart of paint will cover 3/4 of a wall . how many quarts are required to cover four walls of the same size
*Wednesday, July 1, 2015 by vanessa*

**math**

Janice earns a 4 percent commission for the medical equipment that she sells. If she earned $1,823.94 in commission on the digital x-ray machine that she sold, what was the cost of the machine?
*Wednesday, July 1, 2015 by deez*

**math 0310**

Train A has a speed 20 miles per hour greater than that of train B. If train A travels 270 miles in the same times train B travels 230 miles, what are the speeds of the two trains?
*Tuesday, June 30, 2015 by evelyn*

**Math**

57865- +23129=48675
*Tuesday, June 30, 2015 by Anonymous*

**Math**

Margo and Carrie are trying to go to Idaho for Dawn's wedding. The probability of finding a flight for less than $400 is 1/7. The probability of Carrie making enough money babysitting to pay for her flight is 3/5. The probability of the girls being able to take time off ...
*Tuesday, June 30, 2015 by Anonymous*

**math**

a circular pool measures 10 ft across. 1 cubic yard of concrete is to be used to create a circular border of uniform width around the pool. if the border's depth is 2 inches, how wide would will it be?
*Tuesday, June 30, 2015 by sav*

**Math**

Bob and Mary start traveling toward each other from 480 miles apart, each moving at the same speed. They meet after four hours. How fast were they each traveling? I had 20 and then 144 I have tried this problem and everything is wrong.
*Tuesday, June 30, 2015 by Kati*

**math**

Jorge rolls two 6 sided number cubes label 1 to 6. what is the probability of Jorge rolling a 1 and a 2? my answer 36
*Tuesday, June 30, 2015 by sandra*

**math**

natilie buy a sweeter that cost 49 dollars and have a discount of 6.25%. what is the total cost of the sweeter to the nearest cent? it is correct? my answer is 42.5
*Tuesday, June 30, 2015 by siulaniperez*

**math**

if a blouse cost 98.00 dollar and have a 35% discount what is the sale price? its that correct? my answer 63.7
*Tuesday, June 30, 2015 by siulaniperez*

**math arithmetic sequence and series**

A theater has 30 seats in the first row, 33 seats in the second row, 36 seats in the third row, and so on in the same increasing pattern. If the theater has 15 rows of seats, how many seats are in the theater?
*Tuesday, June 30, 2015 by elizabeth*

**math**

Find the minimum number of cells connected in two rows in parallel required to pass a current of 6 A through an external resistance of 0.70 ohms. Take the emf of each cell as 2.1 volts and internal resistance of each cell as 0.5 ohm..
*Tuesday, June 30, 2015 by Cora*

**Math**

Serena is an account executive. She receives a base pay of $18 an hour plus a 15% bonus for all the sales she generates. Last week she generated $1,200 worth of business. What is the minimum number of hours she could have worked to make $500?
*Tuesday, June 30, 2015 by Jean*

**math**

Sum[(-1)^(n - 1) (7/9^(n - 1)), {n, 1, Infinity}]
*Tuesday, June 30, 2015 by fatma*

**math**

∑ (-1)^((n-1)) . 7/9^(n-1) n=1 to ∞
*Tuesday, June 30, 2015 by fatma*