Thursday

October 8, 2015
**Math 104**

A belt connects two pulleys with radii 2 in and 4 in.. The velocity of point A on the belt is 25 ft/sec. What is the linear velocity and angular velocity for point B? What is the linear velocity and angular velocity for point C?
*Tuesday, September 15, 2015 by Rebecca*

**Math**

Romain,fabien,lise,jen and adrien stand in a single row.romain is after lise.fabien is before romain and just after jennifer.jennifer is before lise but she is not d first.where iS adrien?
*Monday, September 14, 2015 by John*

**Math**

Determine the value or values of the variable for which the expression is defined. 3/x-5
*Monday, September 14, 2015 by Pam*

**Math 10**

What is the circumference of the largest circle you could cut from a 30 cm by 20 cm sheet of paper? What area of paper would you cut away. PLZ HELP GUYS TEST TOMMOROW OH MA GAWD!
*Monday, September 14, 2015 by James*

**math**

how do I find the number of zeros in the quotient of 8x10 tithe fifth power
*Monday, September 14, 2015 by Rich*

**Math**

Rochelle's car average 32.5 miles per gallon the highway.At that rate,how many gallons of gas will her car use for driving on the highway for 260 miles?
*Monday, September 14, 2015 by LayLay*

**Math**

Your a 7th grade math teacher and you want to create an experiment for your class with red, yellow and purple marbles in a bag. You want to theoretical probability of drawing a red marble to be 1/2, the theoretical probability of drawing a yellow to be 1/2, and the theoretical...
*Monday, September 14, 2015 by Anonymous*

**math**

An actor invests some money at 6% and $29000 dollars more than 4 times the amount at 9%. The total annual interest earned form the investment is $29910 how much did he invest at each amount
*Monday, September 14, 2015 by jake*

**Math**

-800,400,-200,100,..... What's the next two numbers in this pattern?
*Monday, September 14, 2015 by Jordyn*

**Math**

The local health club is advertising a special for new members: no initiation fee to join and lnly $34.50 per month for the first year. If Andy joins the health club for one year, how much will he spend on membership?
*Monday, September 14, 2015 by AJ*

**Math**

A rectangle is inscribed between the x-axis and the parabola y=9-x^2 with one side along the x-axis. One side in touchin the x- axis and the opposite two vertices touch the parabola. A) Suppose the point (2,5) is the vertex of the rectangle on the original parabola. Use this ...
*Monday, September 14, 2015 by Beth*

**math 208**

parking in a student lot cost 3.00 for the first half hour and 1.25 for each hour there after a partial hour is change the same as a full hour what is the longesr time that student can park
*Monday, September 14, 2015 by Anonymous*

**Math**

S= L(1-r), solve for r I tried both distributing L and dividing by it, but I am not sure which way is correct. Any help would be much appreciated.
*Monday, September 14, 2015 by Ryan*

**math**

whats three to the third power
*Monday, September 14, 2015 by laila*

**math**

Hank sells furniture and earns $280/week plus 4% commission. a) Determine the sales that Hank needs to make to meet his weekly budget requirement of $900. b) Write an equation for this situation, and use it to verify your answer for part. Let x represent earnings and y ...
*Monday, September 14, 2015 by tina *

**Math **

Gymnastic lessons cost $30 per week. How much will 18 weeks of gymnastic lessons cost? - Do i multiply 30 times 18?
*Monday, September 14, 2015 by Cameron*

**math**

my homework saids express each phrase as a rate and and unit rate round to the nearest hundredth. 120 miles on 4 gallons of gas the ratio is 30 to 1 I have to write it in a rate and unit rate to the nearest hundredth.
*Monday, September 14, 2015 by laila*

**Math**

A scuba diver dives to a depth to a of 50 feet, then rises 15 feet, sinks 12 feet, then rises 20 feet, whats the answer?
*Monday, September 14, 2015 by Matthew*

**5th grade math**

insert parentheses to make each statement true: 3x9+18+36/9=33 No way i do this do i get 33. One way I get 31.5 the other way I get 9. I don't think this is a good equation to =33.
*Monday, September 14, 2015 by reid*

**Math**

If a trend line has equation y=-4x-6, what y- value would you expect to obtain when the x- value is 0? ?
*Monday, September 14, 2015 by jacqueline*

**Math**

Which Is More Correct? A Watch That Doesn't Work At All Or A Watch That Loses A Minute Each Hour? BTW It's a Trick Question😉 All I have is the one that loses a minute each hour because it's logical reasoning but I just wanted to double check
*Monday, September 14, 2015 by Leena*

**algebra**

A middle school student is doing a math project in which she has to make a graph of the different ways students get to school. To collect her data, she stands under the bus canopy and asks 100 students how they normally get to school. Is her data valid? Why or why not? A) No. ...
*Monday, September 14, 2015 by Lebron*

**Math**

Your school’s marching band is performing at halftime during a football game. In the last formation, the band members form a circle 100 feet wide in the center of the field. You start at a point on the circle 100 feet from the goal line, march 3008 around the circle, and...
*Monday, September 14, 2015 by R*

**math**

what is 98654433445*876689956e347 equal
*Monday, September 14, 2015 by mariana*

**math**

the diver reaches a depth of 4 meters. it is 11m top to the bottem. what is the change in elevationof the dive?
*Monday, September 14, 2015 by shyenne*

**math**

What value could be added to 2/15 to make the sum greater than 1/2. A. 1/15 B. 8/30 C. 5/15 D. 8/15 2. Which set of mixed numbers had a difference less than 1? A. 1 2/9,1 1/9 B. 3 4/7,2 1/7 C. 2 4/5,1 1/3 D. 2 7/9,1 1/3 1. A 2. A Thanks
*Monday, September 14, 2015 by Skylar*

**Math**

If a trend line has equation y=4x-5, what y- value would you expect to obtain when the x- value is 5? this is kind of tricky
*Monday, September 14, 2015 by jacqueline*

**math**

the relationship between input values x and the output values y is described as:y is one less than a quarter of the number x .if x is equal to -8,-4,0,4,8;represent this relationship in a flow diagram
*Monday, September 14, 2015 by Kabelo*

**math**

may u help me with 2x+3c=42...im not sure what step to take first
*Monday, September 14, 2015 by noni*

**Math**

At a track meet, 50 people ran the 100-meter dash. 2 people finished in 11 seconds, 5 people finished in 12 seconds, 8 people finished in 13 seconds, 10 people finished in 14 seconds, 21 people finished in 15 seconds, 2 people finished in 16 seconds, and 2 people finished in ...
*Monday, September 14, 2015 by Alex*

**Math**

Janine wants to paint just the sides of a cylindrical pottery vase that has a height of 45 cm and a diameter of 14 cm. To the nearest whole number, find the number of square centimeters she will need to paint. Explain the method you would use to find the lateral area.
*Monday, September 14, 2015 by Alex*

**Math**

An hourglass, composed of two identical cones, is 12 cm tall. The radius of each cone is 3 cm. If you want to fill the bottom half of the hourglass full of salt, how much salt will you need? Explain the method you would use to find the amount of salt.
*Monday, September 14, 2015 by Alex*

**math help**

2 3/4 2 4/6 < ------------------------------ > =
*Monday, September 14, 2015 by imaginary*

**Math**

1. What is the name of the ray that is opposite of ray BA? Description of the ray. It's a straight line with the points A B C D all in a row. A) Ray BD B) Ray BA C) Ray CA D) Ray DA This doesn't make sense. I thought that CD would be opposite of BA. But I've done ...
*Monday, September 14, 2015 by Tim*

**Math**

1. Plane hkp and plane rkp are two distinct planes. name the intersection of the plane hkp and plane rkp. A) Ray KP B) Ray HK C) Ray RP D) The planes need not intersect. Is the answer A? Please correct me if I am wrong. Thank you!
*Monday, September 14, 2015 by Tim*

**Math**

Stacey made a necklace using 4 times as many blue beads as red beads. She used a total of 40 beads. How many blue beads did Stacey use?
*Monday, September 14, 2015 by Pj*

**Math**

Find the LCD of 3/5 and 1/6. 5 6 11 30 I believe it is 30
*Monday, September 14, 2015 by Lost*

**math**

Tate has bag of golf balls: 3 red, 5 blue, 2 yellow, and 2 green. What is the probability that he pulls out a red one, replaces it, and then pulls out another red one? A) 1/24 B) 1/22 C) 1/16 D) 5/12
*Monday, September 14, 2015 by Malik*

**math**

You work for a financial information website. You draw a random sample of 100 subscribers and determine that their mean income is $68,500. Which statement is true? A) You conclude that the income of all subscribers is $68,500. B) You conclude that half of the subscribes earn ...
*Monday, September 14, 2015 by Benard*

**math**

A study conducted an experiment with 22,000 women over 10 years to investigate whether a high-stress job leads to heart problems. The study concluded that all women in high-stress jobs are 70% more likely to have a heart attack than women less stressed out by work. Identify ...
*Monday, September 14, 2015 by Jacarious*

**math**

A health inspector wants to check compliance with a new city ordinance on meat storage. Since he can only inspect 10 of the 33 stores, he chooses to do a stratified random sample that consists of all 3 of the large chain stores, 4 of the 10 smaller chain stores, and 3 of the ...
*Monday, September 14, 2015 by Jammal*

**math**

When Mrs. Myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. This means that 95% of her students scored between which two scores? A) 40 and 100 B) 48 and 96 C) 56 and 88 D) 64 and 80
*Monday, September 14, 2015 by Jake*

**math**

A normal distribution has a mean of 44 and a standard deviation of 4. What is the probability that a value drawn from the distribution lies between 36 and 48? A) 0.18 B) 0.32 C) 0.82 D) 0.91
*Monday, September 14, 2015 by Mark*

**math**

a man from point A 80 m with beariNBC N 60 degree E walked toward the point of destination C, while another man from point B walked 60m with bearing S 30 degree E also toward C. find the distance between A and B
*Monday, September 14, 2015 by reggy*

**math**

Can someone help me answer this question? It's combining like terms, my teacher said that the first term is right but the rest is wrong. Question~~ 2x^2y–5xy–7xy–8x^2y+9xy^2 –xy^2 My answer ~~ 2x^2+-8x^2 (2-8)x^2 -6x^2 y+y+y+y (1+1+1+1)y 4y -5x+-...
*Monday, September 14, 2015 by Abby *

**Math**

Four thousand students at a school were asked to name their favorite pizza topping. The results were 800 Pepperoni, 1,000 Sausage, 1,200 Mushrooms, 560 Peppers, 240 Onions, and 200 Other. Your friend expresses these results in this circle graph. Your friend made a mistake, ...
*Monday, September 14, 2015 by David*

**Math**

Ok Juliee now.. you said that Jason has 1dollar and 56 cents right? so what do You do? Sent from my DSi
*Monday, September 14, 2015 by Aubree*

**math**

can anybody tell me what 89 divided by 1235 is...
*Monday, September 14, 2015 by aubreec*

**Math**

jason has $1.56 in change in his pocket . if there is a total of 19 coins, how many quarters, dimes,nickels, and pennies does he have.
*Monday, September 14, 2015 by Juliee*

**math algebra**

What is another way to write -3*(4+7)?
*Monday, September 14, 2015 by cheyann*

**math**

You are given a fraction in simplest form. The numerator is not zero. When you write the fraction as a decimal, it is a repeating decimal. Which numbers from 1 to 10 could be the denominator? THANK YOU!
*Monday, September 14, 2015 by Scotty*

**Math**

Together Jamie and Michael can paint the pool building in 9 hrs. From past Experience Jamie can paint the building in 2 hrs less than Michael. How long would each take to paint alone.
*Monday, September 14, 2015 by Austin Reed *

**Math**

Translate the following sentence into math symbols. Then solve the problem. y more than 4 is -36 My answer: 4 + y = =36 y = -40? Did I answer both of the questions right?
*Monday, September 14, 2015 by James*

**Math **

A plane flys 230 km due north. The wind is blowing west at 85 km. what direction is the plane flying. Calculate the actual speed of the plane. What is the hearing from North?
*Monday, September 14, 2015 by Georgia *

**Math**

Carletta has 23000 dollars to invest. As her financial consultant, you recommend that she invest in Treasury Bills that yield 7%, Treasury Bonds that yield 8%, and corporate bonds that yield 9%. Carletta wants to have an annual income of 1800 dollars, and the amount invested ...
*Monday, September 14, 2015 by julie*

**math**

In 2012, third baseman Miguel Cabrera of the Detroit Tigers baseball team had 205 hits in 622 times at bat. What is Miguel’s batting average?
*Monday, September 14, 2015 by curly*

**Math**

Suppose that a wind is blowing in the direction S45°E at a speed of 50 km/h. A pilot is steering a plane in the direction N60°E at an airspeed (speed in still air) of 150 km/h. The true course, or track, of the plane is the direction of the resultant of the velocity ...
*Monday, September 14, 2015 by Matthew*

**math**

A recipe good for 4 servings requires 1/8 tsp. of black pepper and 1/2 tsp/ of salt. how much pepper and how much salt needed for 2 servings?
*Sunday, September 13, 2015 by jm*

**MATH**

GIVE ME AN EXAMPLE OF A MULTI-STEP NUMBER SENTENCE THAT INCLUDES EXPONENTS (THAT WOULD INVOLVE ORDER OF OPERATIONS AND INCLUDE AT LEAST THREE NUMBERS).
*Sunday, September 13, 2015 by KIM*

**math**

1.4 divided by 36.96
*Sunday, September 13, 2015 by John *

**Math**

If a - 1/a = 2 then show that ( a + 1/a )^2 = 8
*Sunday, September 13, 2015 by Noor*

**math/science**

If 0 is t when the year is 1982, what would be the value of t in 1990? How many years is that? From 1982 to 1992 the cost of the manufacturing a PC has decreased by about the same percentage each year. The cost, C (in dollars), in year t can be modeled by C = 3440 * (3/4)^t &#...
*Sunday, September 13, 2015 by .*

**Math**

A nutritional formula calls for 500 g of dextrose in a total volume of 2000 ml. how many milliliters of a 70% w/v dextrose injection are needed to provide the required amount of dextrose? This seems to be a dimensional analysis problem. We have: 500g/2000ml 70% w/v = 70 g ...
*Sunday, September 13, 2015 by James*

**math**

a bank loaned out 60000, part of it at the rate 14% per year and the rest at a rate of 8% per year. if the interest received was 6780, how much was loaned at 14%?
*Sunday, September 13, 2015 by cindy*

**4th grade math word problem**

tim is 27 years older than tom. the sum of their ages is 337. how old is ti,?
*Sunday, September 13, 2015 by Zach*

**math**

if a ladder 15 meters long is placed so as to reach the bottom of a window 10 meters high, what distance on the ground does the ladder adjusted if it is placed on the top of a two meter square window and what is the new angle of elevation of the top of the window with respect ...
*Sunday, September 13, 2015 by M*

**math help**

-1 3/4 3/4 < > = I think it's B
*Sunday, September 13, 2015 by School*

**math**

how can you find what each mark represents on a number line?
*Sunday, September 13, 2015 by Michelle*

**math/science**

The total surface area of Earth is about 1.97 × 10^8 square miles. The surface area of land on Earth is about 5.73 × 10^7 square miles. Find the ratio of surface area of land to that of the entire planet.
*Sunday, September 13, 2015 by .*

**Math**

-1/2 divided _____________= -7/3 how do I get the number that equals -7/3
*Sunday, September 13, 2015 by Gail*

**math**

the ratio of gas to ethanol is 17 to 3, how much ethanol is in 600 gallons of mixture
*Sunday, September 13, 2015 by Noah*

**Neuroscience**

I'm struggling with the following question: The opening of chloride selective channels by a neurotransmitter X will drive membrane potential toward the chloride equilibrium potential. Assume that early during cell development, Cl is pumped into the cell for a concentration...
*Sunday, September 13, 2015 by John*

**Math**

The temperature at noon is 75 degreesF. The temperature drops 3 degrees every half hour. What is the temperature at 4.pm. I'm studying Multiplying Rational numbers and I don't know how to set this up.
*Sunday, September 13, 2015 by Gail*

**math**

how much cesium-137 would remain after 120.0 years if you started with 34.0 grams
*Sunday, September 13, 2015 by tanella*

**math**

what does scale mean
*Sunday, September 13, 2015 by Anonymous*

**Math (Trigonometry) **

Zola can see the top of 180m cell phone at an angle of elevation of 32 degrees, and Naeem can see it an angle of elevation of 50 degrees. How far apart are Zola and Naeem if they are on a straight line with the tower? There are two possibilities.
*Sunday, September 13, 2015 by Luisa*

**math**

Greg is at his house.He gets in his car and drives north 9.6 miles and stops at the store.Then he turns around and drives south 8.4 miles to go to his friend's house.How far is the friend's house from Greg's house?
*Sunday, September 13, 2015 by Jennifer*

**Math**

At present, the sum of the ages of a father and his son is 33 years. Determine the smallest number of years until the father's age is 4 times the son's age.
*Sunday, September 13, 2015 by Student*

**Math**

When the tap is turned on, a sink will fill at a uniform rate in 60 seconds. If the plug is removed, the sink will empty at a uniform rate in 80 seconds. How long will it take to fill the empty sink with the tap on and plug removed?
*Sunday, September 13, 2015 by Anon*

**math - age problem**

3 years ago, Vin’s age is 3 times the age of Paul. At the present, Vin’s age is twice the age of Paul. What would be their age 3 years from now if the sum of their present age is 18?
*Sunday, September 13, 2015 by andrea*

**math**

If there are two farmers who have grown grass in the circular field then what should be length of rope so that equal crop is distributed to both if rope is tied at the center of the circular field if r is radius of the circle
*Sunday, September 13, 2015 by pooja*

**math**

Please help! (X+y)^3+(x-y)^3
*Sunday, September 13, 2015 by agnes*

**Math- Algebra**

A 600 meters long train travels through a 4200 meter tunnel. Two full minutes elapsed from time the front of the train enters the tunnel until the last wagon exits the tunnel. What is the speed, in meters per second, of the train?
*Sunday, September 13, 2015 by Austin M.*

**Intermediate math**

I have to factor these two problems but am having some difficulties X^3y^6-64 & (x+y)^3+(x-y)^3
*Sunday, September 13, 2015 by April *

**math**

1.) 3 years ago, Vin’s age is 3 times the age of Paul. At the present, Vin’s age is twice the age of Paul. What would be their age 3 years from now if the sum of their present age is 18? 2.) Willie bought a jacket for 26.86 pesos. The jacket’s price had been ...
*Sunday, September 13, 2015 by andrea*

**Math **

A plane flys 230 km due north. The wind is blowing west at 85 km. what direction is the plane flying. Calculate the actual speed of the plane. What is the hearing from North?
*Sunday, September 13, 2015 by Georgia *

**math**

A rectangular cake measuring 120 cm by 72 cm is to be divided into square pieces of the same size and the largest size possible.What will be the measure of the side of each square and how many pieces will there be?
*Sunday, September 13, 2015 by regieco batarra*

**Math: Geometric Progression**

Three numbers are in G.P. whose sum is 70. if the extremes be each multiplied by 4 and the means by 5, they will be in AP. find the numbers .
*Sunday, September 13, 2015 by Aman*

**Math**

If a - 1/a = 2 then show that ( a + 1/a )^2 = 8
*Sunday, September 13, 2015 by Noor*

**math**

Jenny gets a salary increment of 20%. She gives 1 5 of her new salary to her mother and spends another 40%. If she has RM600 left,what is her original salary?
*Saturday, September 12, 2015 by ayu*

**math ( having difficulty)**

Superior has provided the following information for its recent year of operation: The common stock account balance at the beginning of the year was $18,000 and the year-end balance was $19,000. The additional paid-in capital account balance increased $4,300 during the year. ...
*Saturday, September 12, 2015 by samantha*

**math (please help)**

A company's retained earnings increased $375,000 last year and its assets increased $973,000. The company declared a $79,000 cash dividend during the year. What was last year's net income?
*Saturday, September 12, 2015 by samantha*

**Math**

An ordinary plane leaves an airport and flies due west at 180kph. Two hours later a jet leaves the same airport and flies due west at 900kph. How far from the airport will the jet overtake the ordinary plane?
*Saturday, September 12, 2015 by Sammy*

**Math**

Four members of a club decide to buy shares in a company. They will divide the cost equally. Two new members join the club and agree to contribute to the shares. Their contribution results in a savings of $200 for each of the original four members. How much do the shares cost?
*Saturday, September 12, 2015 by Anonymous*

**math**

lim x-->-9 x^2+10x+9 / x-9
*Saturday, September 12, 2015 by Ernie*

**Math 9th Grade**

Write an expression for the distance a car travels in t hours at a speed of s km/h
*Saturday, September 12, 2015 by Alex*

**math**

If your 4ft from the mirror;the mirror is 15ft.from the wall and your eyes are 6ft from the floor,what is the height of the wall?
*Saturday, September 12, 2015 by Vernon *

**Math Pre Algebra**

evaluate 5(14-2^3)+ 8/2 =
*Saturday, September 12, 2015 by Tay*

**Math**

If a - 1/a = 2 then show that ( a + 1/a )^2 = 8
*Saturday, September 12, 2015 by Noor*

**math**

Gabriella has between 2 and 3 hours to spend on Math, Sociology, and English homework. She plans to spend equal amounts of time studying Sociology and English, and to spend 2 times as much time studying Math as in studying Sociology.
*Saturday, September 12, 2015 by devindra*