Branches of Math
Recent Homework Questions About Math
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math
a company employs 12 gardeners at $26 per day , and 8 clerks at $17 per day. What is the mean daily wage,in dollars,of the 20 employees?
Sunday, April 28, 2013 at 5:02pm
math
a man pays 60 cents for every 200m3 of gas used,plus a fixed charge of $13.75. How much does he pay when he uses 55 000m3 of gas?
Sunday, April 28, 2013 at 5:00pm
7th Grade Math for Steve.. or Ms. Sue
Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 ** The sequence is neither geometric nor arithmetic. 2. –4, 8, –16, 32...
Sunday, April 28, 2013 at 4:20pm
math, duhhh!
New flat- screen tvs flash even faster than older tvs. Since dogs need a flicker freqency rate of 75, dogtv works as intended only on newer tvs. One type of new tvs flash 500 frames each second. How many moreframes does it flash than an older tv with a flicker frequency rate ...
Sunday, April 28, 2013 at 3:57pm
math
barry buys a rug that is 35 inches by 4 feet.what is the area of the rug?
Sunday, April 28, 2013 at 3:52pm
math
jason and jenny went to see the movie Vampires From Mars. Jason told his mother, " The movie starts at 1:15 p.m. and is 2 hours and 56 minutes long, so it will end at 5:11 p.m. Please pick us up then." What was jasons mistake and how can it be fixed.
Sunday, April 28, 2013 at 3:48pm
math
least to greatest 1/8,1/10,1/7
Sunday, April 28, 2013 at 3:20pm
5th grade math (word problems)
Maria is packaging boxes into a carton that is 4 in. x 6 in. x 3 in. THe boxes are 2 in. x 1 in. x 1 in. How many boxes will fit in the carton? I'm not sure how to solve. I know volume = l x w x h. The carton has volume of 72 cubic inches (4 x 6 x 3). THe boxes are 2 cubic...
Sunday, April 28, 2013 at 2:24pm
math
3x-4y=-6 2x+6y=11
Sunday, April 28, 2013 at 1:52pm
5 th grade math
pilar has 4 marbles in a bag .they are green,red,blue,and yellow.she chooses a marble without looking,replaces it,and then chooses another marble.if she wants to get a green marble exactly 1 time out out of the 2 draws,how many favorable outcomes are possible?
Sunday, April 28, 2013 at 1:33pm
School (Plz read, really important)
Am I eligible to get a President's Award for Educational Excellence or the President's Award for Educational Achievement and Daughters of the American Revolution??? Here are my grades from last year and this year so far and everything else I accomplish: 7th Grade - 93....
Sunday, April 28, 2013 at 12:40pm
Math
suppose you put one bacterium on a petri plate containing a suitable medium at a favorable temperature. If after 6 hours you found there to be 40 bacterium. What would be its exact double time to the nearest minute?
Sunday, April 28, 2013 at 12:35pm
Math
Solve the following system: 4x-y+z=6 2x+y+2z=3 3x-2y+z=3 Find the values for x, y, and z
Sunday, April 28, 2013 at 12:19pm
math
A standard die is rolled three times. What is the probability that a prime number is rolled on exactly one of the three rolls?
Sunday, April 28, 2013 at 11:54am
Math (Quadratic Function)
Suppose p(x)=ax^2+bx+c is a quadratic polynomial satisfying p(7)−p(3)=214. Determine the value of p(9)−p(1).
Sunday, April 28, 2013 at 9:49am
math
Initially two painters are available to paint a picket fence. Peter alone could paint the fence in 6 hours; Pat alone in 3 hours. It is decided that they will work simultaneously to paint the fence. Before they start, however, along comes Mary, who alone could paint the fence ...
Sunday, April 28, 2013 at 9:27am
math
Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.
Sunday, April 28, 2013 at 9:25am
math
Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.
Sunday, April 28, 2013 at 9:23am
math
Wayne will get $4200 if his salary is increase by 20%.Wayne's salary is 40% less the barry.Find Barry's salary.
Sunday, April 28, 2013 at 9:23am
math
Jason uses his car for his job. He is allowed to depreciate the car 7% per year. IF the car was worth $23,000 new, in about how many years will the car be worth $3,000?
Sunday, April 28, 2013 at 4:19am
math
find the radius and height of a cylindrical soda can with a volume of 21in^3 that minimize the surface area.
Sunday, April 28, 2013 at 3:47am
math
what is the smallest perimeter possible for a rectangle whose area is 1000in^2 and what are its dimensions?
Sunday, April 28, 2013 at 3:46am
math
verify that the function satisfies the hypotheses of the mean values theorem on the given interval. then find all numbers c in the given interval that satisfy the conclusion of the mean value theorem. f(x)=2x/x4 [0,3]
Sunday, April 28, 2013 at 3:45am
Math
A solid sphere of 1.46kg and radius 0.1m, is rolling down a rough plane that is inclined at an angle 30 degrees to the horizontal. The 3 forces acting on the sphere are its weight, friction force and the normal reaction. The sphere starts rolling down when its point of contact...
Saturday, April 27, 2013 at 10:03pm
math
jim has grades of 84, 65, 76 on three tests. what grade must he obtain on the next test to have an average of exactly 80% for all four tests?
Saturday, April 27, 2013 at 9:36pm
Math
A solid sphere of 1.46kg and radius 0.1m, is rolling down a rough plane that is inclined at an angle 30 degrees to the horizontal. The 3 ferces acting on the sphere are its weight, friction force and the normal reaction. The sphere starts rolling down when its point of contact...
Saturday, April 27, 2013 at 9:09pm
algebra1
a wholesaler bought a batch of t-shirts for $77.00.She gave two of the T-shirts to her daughters and then sold the rest for a total of $90.If the wholesaler sold each T-shirt for $2 more than it cost her,how much did she pay for each T-shirt?
Saturday, April 27, 2013 at 7:50pm
algebra1
jose ordered a box of fruits for his market stand costing $6.When his order arrived,Jose discovered that 20 fruits were rotten and threw them in the trash.He sold all of the remaining fruits for a total of $8,charging 3 cents more for each fruit than he paid for it.How many ...
Saturday, April 27, 2013 at 7:44pm
algebra1
chen bought a bag f groceries weighing 15 pounds.His friend,jo,bought a bag of groceries that always weighed 15 pounds,but contained one less item.the average weight per item for jo's groceries was 1/2 pound more than for Chen's.How many items were in Jo's grocery ...
Saturday, April 27, 2013 at 7:39pm
algebra1
juan's band produced a number of CDs to sell at a gig.the batch of CDs cost $170.00 to make and each CD was sold for $2.50 more than it cost to produce.juan gave 2 CDs to his friends,but sold the rest for a total of $198.00.How many CDs did juan produce?
Saturday, April 27, 2013 at 7:31pm
algebra1
a cyclist completes a 150-mile race in a certain amount of time.she completes another 150-mile race a month later,but this time it takes an hour longer to cover the same distance and her average speed is 5 mph less than in the first race.find the average speed for the cyclist...
Saturday, April 27, 2013 at 7:21pm
algebra1
Vanessa bought a set of military medals through an antique dealer for $120 .she gave two of the medals to her father and resold the rest,charging $4 more per medal than she paid .if vanessa sold the medals for a total of $156.how much did she charge for each medal?.
Saturday, April 27, 2013 at 7:10pm
math
what is the solution to this problem 6 5x=1296
Saturday, April 27, 2013 at 6:38pm
Math
On average the temperature falls about 5.4 F for every 1,000ft of additional altitude. If the temperature is 42 F on the ground, estimate the temperature at 5,000 ft.
Saturday, April 27, 2013 at 6:30pm
math
In a bag of candy, there are five green candies for every two red candies. If there are 35 total candies in the bag, which of the following is the total number of green candies in the bag? i solve it but i do not know if is correct,so please can you check if if correct 5x+2x=...
Saturday, April 27, 2013 at 6:18pm
Math
On average, the temperature falls about 5.4 F for every 1,000 ft of additional altitude. If the temperature is 42 F on the ground estimate the temperature at 5,000 ft
Saturday, April 27, 2013 at 6:07pm
math
. Find the slope of a line that is parallel to the line containing the points (3, 4) and (2, 6). (1 point) m = 1 m = 2 m = –2 m = 1/2
Saturday, April 27, 2013 at 5:36pm
math
the perimeter if a fence is 48 meters. if the width is 2 meters less then the length, find the with
Saturday, April 27, 2013 at 2:51pm
math
PRINCIPLE OF MATHEMATICAL INDUCTION=1/2+1/4+1/8+....+1/2n=1-1/2n
Saturday, April 27, 2013 at 2:05pm
math
how much does this equals? 3sin^(2)x - 7cos^(2)x , when cos2x=-0,1 ?
Saturday, April 27, 2013 at 2:05pm
math
If a basketball player consistently shoots 80% from the free throw line and she takes 25 free throw shots throughout the course of a game, how many free throws can she be expected to make?
Saturday, April 27, 2013 at 12:47pm
Math (Probability) PLEASE HELP!!
If a 20-sided fair die with sides distinctly numbered 1 through 20 is rolled, the probability that the answer is a perfect square can be expressed as a/b where a and b are coprime positive integers. What is the value of a+b?
Saturday, April 27, 2013 at 10:50am
Math-Borrow
Explain the term "borrow". Describe the situation in which it is used. Describe the confusion that may result from its use. Offer an alternative term and explain how this term would be less confusing to students.
Saturday, April 27, 2013 at 10:42am
math
if 1,x,y is a geometric sequence and x,y,3 is an arithmetic sequence, compute the maximum value of x+y
Saturday, April 27, 2013 at 10:25am
math
If a conservationist catches 72 trout, tags them and throws them back in the lake. Later 33 trout are caught, 11 of them are tagged. How many trout would the conservationist expect to find in the lake.
Saturday, April 27, 2013 at 10:14am
math
A student traveled 236 km in 18 days. At the same ratio how far would the student travel in 54 days.
Saturday, April 27, 2013 at 10:11am
math
IF the speed of train A is 10 mph slower than train B. Train A travels 220 miles in the same time it takes train B to travel 270. What is the speed of both trains.
Saturday, April 27, 2013 at 10:09am
math
An electric pole touches the ground due to bending in a wind. It is found that standing part of pole is equal to the distance of end touching the ground. If the end touching the ground from the pole is at distance 4 m, what was the length of pole before bending ?
Saturday, April 27, 2013 at 8:00am
Math
Let Alpha and Beta be the zeros of the cubic polynomial x^3 + ax^2 + bx + c satisfying the relation Alpha * Beta -1 = 0. Prove that : c^2 + ac + b + 1 = 0. Please work the complete solution
Saturday, April 27, 2013 at 4:52am
math
how will I develop a transaction program?
Saturday, April 27, 2013 at 1:11am
math
you complain that the hot tub in your hotel suite is not enough. the hotel tells you that they will increase the temperature by 10% each hour. If the temperature of the hot tub is 75%F, what will be the temperature of the hot tub after 3 hours, to the nearest tenth of a degree?
Saturday, April 27, 2013 at 1:04am
Math
One fourth of herd of goats was seen in the forest. Twice the square root of the number of the herd had gone up the hill and the remaining 15 goats were on bank of the river. Find the total number of goats. I got the equation to be x/4 + 2 root x + 15 = x but didn't get ...
Saturday, April 27, 2013 at 12:26am
Math
I want to build a landscaping block garden oval with twelve inch blocks. I want the second row to come out even. How would I figure this out.
Saturday, April 27, 2013 at 12:17am
math
10cm^3 of a normal specimen of human blood contains 1.2g of hemoglobin. How many grams does 22cm^3 of the same blood contain?
Friday, April 26, 2013 at 11:02pm
math
To determine the number of trout in a lake, conservationist catches 161 trout, tags them and throuws them back into the lake. Later, 39 trout are caught: 13 of them are tagged. How many trout would the conservationist expect to be in the lake?
Friday, April 26, 2013 at 10:59pm
math
A long distance trucker traveled 240 miles in one direction during a snow storm. The return trip in rainy weather was accomplished at double the speed and took 5 hours less time. What is the speed going.
Friday, April 26, 2013 at 10:53pm
Math
19. A family takes a car trip. They travel for an hour at 80 km/h and then for 2 hours at 40 km/h. Find the average speed. (Hint, Remember to consider the total distance and the total amount of time.)
Friday, April 26, 2013 at 10:45pm
math
12/5x0.6x(0.5x10-3)12= I really need help with this one I cant calculate it can someone help
Friday, April 26, 2013 at 10:40pm
math probablity- Respond as soon as possible
Assume a family is planning to have three children. 1. Why do probabilities centered around this scenario represent the same probabilities as those for flipping three coins
Friday, April 26, 2013 at 10:28pm
math probablity
Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible outcomes). ??????
Friday, April 26, 2013 at 9:51pm
math/physics
Estimate the percentage savings in the fuel bill if the thermostat is set back from 68 degrees F to 50 degrees F for 12 hours of the day, and left at 68 degrees F for the other 12 hours, assuming an outside temperature of 15 degrees F all day.
Friday, April 26, 2013 at 6:48pm
Math-probablity
Assume a family is planning to have three children. A. What is is the probablity of a family having 2 girls. B. The probablity of a family having at least 1 boy. C. List the sample space using a B for Boy and G for girl (Hint there should be 8 possible outcomes).
Friday, April 26, 2013 at 4:33pm
math 115
C(x)=450x+5000, R(x)=-3x^2+900x for 20<x<150 where x>=20
Friday, April 26, 2013 at 4:28pm
math
Explain mentally which fraction would be the larger. Use two different types of thinking for each problem. A. 4/5 or 8/9 B. 3/5 or 3/8
Friday, April 26, 2013 at 4:20pm
math
what is the y-intercept of the line of 35.00 + 8.00x if the slope is 8
Friday, April 26, 2013 at 3:48pm
Math
A quarter has a diameter of approximately 24 millimeters. What is the area of the quarter? Did I work this right? A= 3.14 (12) A=3.14 (144) A-452.16 mm Thanks
Friday, April 26, 2013 at 12:57pm
Math
Math Problem: Find the area of a circle that has a radius of 14 feet. Round your answer to the nearest hundredth. Would someone please check the way I worked this and let me know if I did it correct or not? Thank You A=3.14 (14ft)2 A=3.14 (196) A=615.44 Im thinking I didn'...
Friday, April 26, 2013 at 12:30pm
Calculus (math)
A rescue cable attached to a helicopter weighs 2 lb/ft. A 190 lb man grabs the end of the rope and is pulled from the ocean into the helicopter. How much work is done by lifting the man if the helicopter is 50 ft above to water.
Friday, April 26, 2013 at 12:17pm
Vectors/Math
If w = <-8, 15>, find ||w||. A. 7 B. 17 C. 23 D.sqrt 7 E.sqrt 23
Friday, April 26, 2013 at 11:39am
Math help
Find the slope of a line that is perpendicular to the line containing the points (–2, –1) and (2, –3). can you tell me how to do it and show the answer Thanks!
Friday, April 26, 2013 at 10:33am
Math
If X = 3 units, Y = 5 units, and Z = 11 units, then what is the volume of the rectangular prism shown above? A. 206 cubic units B. 165 cubic units C. 363 cubic units D. 75 cubic units E. neather above
Friday, April 26, 2013 at 9:58am
Math
If X = 3 units, Y = 5 units, and Z = 11 units, then what is the volume of the rectangular prism shown above?
Friday, April 26, 2013 at 9:56am
Math
Find the remaining zeros of the following polynomial given the P(i)=0. x^4-8x^3+14x^2-8x+13
Friday, April 26, 2013 at 9:45am
College math
Please HELP! In a certain lottery game players choose a set of 6 distinct numbers from the numbers 1-50. How many combinations are possible if order is not important. Thanks sooooo much!
Friday, April 26, 2013 at 8:53am
Math
The perimeter of rectangle Z is equal to its area.Rectangle Y has the same perimeter as rectangle Z.The length of rectangle Y is 5 inches and width of rectangle Z.
Friday, April 26, 2013 at 1:11am
math
An observer is located on the ground 6 kilometers from the point where a space shuttle is launched (vertically). When the shuttle is 8 kilometers high, it is travelling at 500 kilometers per hour. Determine, for that moment, the rate at which the distance between the observer ...
Friday, April 26, 2013 at 1:04am
math
Jeff takes a loan of R25000 in a period of 5years calculate the interest rate?
Friday, April 26, 2013 at 12:43am
Math
A polymomial p(x) = ax^2 + bx + c where a, b, c are some rational, has 1 + root 3 as one of the zeros and also p (2) = - 2, Find values of a, b and c. Please work the solution. Tried it many times but still can't get the answer/ The answer is a = 1, b = -2 and c = -2.
Friday, April 26, 2013 at 12:02am
Math
A polymomial p(x) = ax^2 + bx + c where a, b, c are some rational, has 1 + root 3 as one of the zeros and also p (2) = - 2, Find values of a, b and c. Please work the solution. Tried it many times but still can't get the answer/ The answer is a = 1, b = -2 and c = -2.
Friday, April 26, 2013 at 12:02am
Math
A polymomial p(x) = ax^2 + bx + c where a, b, c are some rational, has 1 + root 3 as one of the zeros and also p (2) = - 2, Find values of a, b and c. Please work the solution. Tried it many times but still can't get the answer/ The answer is a = 1, b = -2 and c = -2.
Friday, April 26, 2013 at 12:02am
Math
A polymomial p(x) = ax^2 + bx + c where a, b, c are some rational, has 1 + root 3 as one of the zeros and also p (2) = - 2, Find values of a, b and c.
Thursday, April 25, 2013 at 11:59pm
Math
What is the greatest number of points of intersection with three circles that have 6 intersections using four straight lines?
Thursday, April 25, 2013 at 11:27pm
math
4) what number makes this inequality equivalent -6v ; v>-0.5
Thursday, April 25, 2013 at 11:01pm
Math Please help ASAP
how do you find the LCM (90, 120) by taking the quotient of the product of the numbers and divide by the greatest common factor of the numbers
Thursday, April 25, 2013 at 10:53pm
math
70% of 72=
Thursday, April 25, 2013 at 10:16pm
Math
What are three distinct numeric approaches for calculating the product 24x32?
Thursday, April 25, 2013 at 9:29pm
math
If the probability of an event happening is 2/5, then the probability of the event not happening is 3/5? This is False. The answer is 1/3. Explain why the answer is 1/3
Thursday, April 25, 2013 at 9:20pm
math
Helen determined she walks about 1,800 steps per 4/5 of a mile. How many steps did she take if she walked 3 miles
Thursday, April 25, 2013 at 8:59pm
math-high school
If the probability of an event happening is 2/5, then the probability of the event not happening is 3/5? This is False. The answer is 1/3. Explain why the answer is 1/3
Thursday, April 25, 2013 at 8:57pm
Math
Solve Square root of x+1= square root of 5x-9 Please help me solve this.
Thursday, April 25, 2013 at 8:47pm
Math
Explain "the larger the denominator the smaller the fraction?"
Thursday, April 25, 2013 at 8:33pm
Math
If the probability of an event happening is 2/5, then the probability of the event not happening is 3/5? This is False. The answer is 1/3. Explain why the answer is 1/3
Thursday, April 25, 2013 at 8:22pm
Math
How do you find the equation of a line with a slope of 2 and containing the points 1,5
Thursday, April 25, 2013 at 8:05pm
math help please ASAP
2. Identify the sequence as arithmetic, geometric, or neither. 1.6, 0.8, 0.4, 0.2, . . . (1 point) arithmetic geometric neither 3. 5 • 3^n (1 point) 15, 30, 45, 60 5, 15, 45, 135 0, 15, 45, 135 15, 45, 135, 405 4. Use the function rule ƒ(x) = n • |–1|^n. ...
Thursday, April 25, 2013 at 7:52pm
Math
Write a situation that can be represented by 6n+4.
Thursday, April 25, 2013 at 7:49pm
MATH
If you flip a coin 9 times and get 9 heads the probability of getting a head on the next toss would be 1/2. Explain how it is 1/2.
Thursday, April 25, 2013 at 7:47pm
Math
Ben conserves water in his home.He conserves 3 gallons each time he turns off the faucet when brushing his teeth.He conserves 30 gallons by running the dishwasher once a day instead of twice a day. What expression represents the total number of gallons,g,Ben saves each day? 3g...
Thursday, April 25, 2013 at 7:39pm
Math
My home work asks "what is the five number summery of a datta set? How is it used to mAke a box plot?" But i frogot what a five number summery is please help.
Thursday, April 25, 2013 at 7:27pm
Math
Can anyone help me on simplifying algebraic expressions like this one 7(7+5f)+(f+6)10 It has been a while since I learned this so I don't remember this
Thursday, April 25, 2013 at 7:14pm
Math
I can't remember how to do simplifying algebraic expressions can anyone help me?
Thursday, April 25, 2013 at 7:06pm
Math
Harry is 6 more than twice as old as Alex. How old is Harry if their combined age is 72 years old?
Thursday, April 25, 2013 at 6:18pm
Math
What is 1 5 of 20
Thursday, April 25, 2013 at 5:50pm
math for Ms. Sue
The fifth grade marching band includes boys and girls. There are 28 boys in the marching band. The 28 boys are 7/10 of the students in the marching band. a. What fraction of the students n the marching band are girls? b. What is the total number of students in the marching ...
Thursday, April 25, 2013 at 5:46pm
Math
There is a mathematical relationship between an airplane’s weight x and the runway length required at takeoff. For certain types of airplanes, the minimum runway length L in thousands of feet may be modeled by L(x) = 1.3 ln x, where x is in thousands of pounds. a) ...
Thursday, April 25, 2013 at 5:40pm
Math
6-4 3/10=
Thursday, April 25, 2013 at 5:37pm
4 grade math
If ms smith class read for 450hrs this month. Ms Brown class read two-thirds the number of hrs read by ms smith class. Ms James class read twice the hrs read by ms brown class. There are 90 students in these 3 classrooms. What was the average number of hrs read by each student?
Thursday, April 25, 2013 at 5:33pm
math
Triangle XYZ with vertices X(3,-1) Y(7,-3)Z(3,-5) undergoes an enlargement represented by the mapping: (x)--(-0.5 0)(x) +(-3) (y)--( 0 -0.5)(y) +(4) Evaluate: 1. The vertices of the image of triangle XYZ. 2. The centre of enlargement PS. The small brackets should be one big ...
Thursday, April 25, 2013 at 5:26pm
Math
How do you find the length of the base of a triangle? My math problem is: The area of a triangle is 33.6 inches. If the height is 4 inches what is the length of the base? thank you
Thursday, April 25, 2013 at 5:23pm
math
Triangle XYZ with vertices X(3,-1) Y(7,-3)Z(3,-5) undergoes an enlargement represented by the mapping: x
Thursday, April 25, 2013 at 5:17pm
math
1(1/6) x 3/8=
Thursday, April 25, 2013 at 5:05pm
math
6-4(3/10)=
Thursday, April 25, 2013 at 5:04pm
Math
Angela measured 2 trees in her front yard.Tree A is 5m. Tree B is 200 cm taller than tree A. How tall is tree B
Thursday, April 25, 2013 at 5:01pm
math
A rectangular plot is bounded at the back by a river. No fencing is needed along the river and there is to be an opening in front of about 24 meters. If the cost of fencing in front is $1500 per meter and the cost of fencing the sides is $1000 per meter, find the dimensions of...
Thursday, April 25, 2013 at 4:42pm
Math Algebra
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function. 1. 9x^6-5x^4-2x^3+8x^2-4x=0 2. -9x^4+5x^3-2x^2+4x-3=0
Thursday, April 25, 2013 at 3:58pm
Math
What is 0.0185 as a fraction and a percent
Thursday, April 25, 2013 at 3:43pm
math
a potato chip manufacturer has been accused of shortchanging their customers with 10 ouce of bags potato chips. a sample of 50 of that company's 10 ounce bags was take, and it was found that the average weight was 9.8 ounces with a standard deviation of 0.3 ounces.can we ...
Thursday, April 25, 2013 at 3:16pm
Math Algebra
Find a polynomial p(x) with real coefficients having the given zeros. 6,-14, and 4+3i
Thursday, April 25, 2013 at 3:12pm
math
If 2p-4p-2r is what
Thursday, April 25, 2013 at 1:34pm
Math
Tammy drew a scale drawing of a house. The scale she used was 14 millimeters = 5 meters. The actual length of the garage is 15 meters. How long is the garage in the drawing?
Thursday, April 25, 2013 at 12:53pm
College math
Three coins are tossed. How many ways are there to get more than 2 tails, exactly 2 heads, only 1 tail. Thanks in advance for the help!
Thursday, April 25, 2013 at 12:34pm
Math
A gardener is installing a circular garden. The radius of the circle 28 feet. He needs to know the circumference in order to buy materials for the edging. What is the circumference if he uses = . The circumference is __ feet
Thursday, April 25, 2013 at 11:40am
Math
A lot is in the shape of a trapezoid. The sum of the bases is 180 feet. If the area of the lot is 8,100 square feet, what is the distance across the lot, i.e. the altitude of the figure? The altitude of the trapezoid is __ feet.
Thursday, April 25, 2013 at 11:35am
Math, Calc
Which rectangular equation corresponds to this set of parametric equations? x = t + 2 and y = t^2 + 3 A. y = (x − 2)^2 − 3 B. y = (x + 2)^2 + 3 C. y = (x − 2)^2 D. y = (x + 2)^2 − 3 E. y = (x − 2)^2 + 3
Thursday, April 25, 2013 at 11:15am
math
A water tank can be constructed with a metal top and two square ends that holds 16 cubic meter of water and requires 40 square meter of metal. find the dimensions of the water tank.
Thursday, April 25, 2013 at 11:09am
Math
A building casts a shadow that is 8ft long. How tall is the building?
Thursday, April 25, 2013 at 9:40am
math pre calc
solve for X marticies 2 0 5 4 -1 3 =2 6 x -7
Thursday, April 25, 2013 at 8:24am
math pre calc
gaussian elimination x+Y+Z=-2 X-y+5z+22 5x+y+z=-22
Thursday, April 25, 2013 at 8:22am
math
9 subtracted from 2 less than the product of 4 and 8
Thursday, April 25, 2013 at 8:03am
math
Express (5x+2)/(2x-1)(x+1) into partial fractions and hence expand the expression as a series in ascending power of x giving the first 4 terms
Thursday, April 25, 2013 at 7:04am
math
The function f(x)= ax^3 - bx +c passes through the origin, f(-1)=4/3 and it has an extreme point at x=1 (i) Find the values of a, b and c. (ii) Sketch the graph (iii) Find the area bounded by the graph of f(x) and the x-axis between the lines x=-1 and x=1
Thursday, April 25, 2013 at 6:57am
math
1 1 1 a b c a^2 b^2 c^2 Factorise the determinant
Thursday, April 25, 2013 at 6:36am
Math
Five red cards numbered 1,2,3,4,5 and two black cards both numbered 5 are randomly ordered face-down into a pile. The cards are flipped over one at a time until either the sum of the numbers on the red cards is at least 10, or the sum of the numbers on the black cards is at ...
Thursday, April 25, 2013 at 5:36am
Math
Find the smallest prime number N such that the following is true: The largest prime factor of N−1 is A; The largest prime factor of A−1 is B; The largest prime factor of B−1 is 7.
Thursday, April 25, 2013 at 5:28am
Math
how can you go about in calculating vertical and horizontal asymptotes?
Thursday, April 25, 2013 at 5:26am
math
a student drop a rubber ball from a height of 8 feet . Each time the ball hits the ground, it bounces to 75% of its previous height. a/ how far does the ball travel between tne second and third bounces . b/ write an infinite series to model the total distance tralveled by the ...
Thursday, April 25, 2013 at 3:07am
Math
one integer is 5 less than another. Find the number if the sum of their reciprocals is 17/66?
Thursday, April 25, 2013 at 2:59am
math pre calc
at the pittsburch zoo, children ride a train for 25 cents, adults pay $1 and seniors pay .75. on a given day, 1400 passengers paid a total of $740 for the rides. there were 250 more children riders than adults and senior riders combined.find the nu,ber of each type of rider. ...
Thursday, April 25, 2013 at 1:28am
math hw (algebra)
On the sidewalk the distance from the dormitory to the cafeteria is 400 meters. By cutting across the lawn, the walking distance is shortened to 300 meters. how long is each part of the L shaped sidewalk?
Thursday, April 25, 2013 at 12:39am
math (algebra)
An auto dealer wants to string a wire from the top of a pole to the ground and hang colorful pennants from it. The distance from the base of the pole to the point where the wire is attached to the ground is 3 times the height of the pole. If the wire is 63 feet long, how tall ...
Thursday, April 25, 2013 at 12:36am
math
I cooked 1/2 of greens today and 1/3 of greens yesterday. How much greens did I cook.
Wednesday, April 24, 2013 at 11:13pm
math
A bag contains 5 red balls and 7 green balls . A ball is picked at random , its color is noted and it is given out . The bag is shaken and a second selection is made. A. Draw. Tree diagram to illustrate thr information. B. Calculate the probability that both balls are red
Wednesday, April 24, 2013 at 10:50pm
math
what if Julie is thinking of an even number between 12 and 29 with digits whose difference is 7? what is the number?
Wednesday, April 24, 2013 at 10:48pm
math
The perimeter of a paved area being built at a playground is going to be 46 meters. If the length and width are each a whole number of meters, what should the length and width of the area be to cover the greatest possible area?
Wednesday, April 24, 2013 at 10:29pm
Math 7th Geometery
I have a complex figure like a U shape. I understand the formula for this is l x w = a Can you show me the steps? 31m is parael to 31m this would be the height (sides of the U)?? or is this the width? Length 69m Width is on the right top of U 23m. Inside the middle of the ...
Wednesday, April 24, 2013 at 10:27pm
math
A textbook store sold a combined total of 462 biology and chemistry textbooks in a week. The number of biology textbooks sold was two times the number of chemistry textbooks sold. How many textbooks of each type were sold?
Wednesday, April 24, 2013 at 9:38pm
math 7th
When the temperature is 68°F, the speed of sound in air is approximately 343 meters per second. Approximately how many kilometers does sound travel in five seconds? Can some one help with the steps?
Wednesday, April 24, 2013 at 8:34pm
math
Christamas card costs $0.75 each and postage stamps costs $0.39 each. If you have $3.00 only to spend on sending 2 cards to your friends, how much money will be left after sending the cards
Wednesday, April 24, 2013 at 8:10pm
Math
Adam wants to compare the fractions 2/5, 1/6, and 1/3. He wants to order them from least to greatest and rewrite them so they all have the same denominator. Explain how Adam can rewrite the fraction.
Wednesday, April 24, 2013 at 7:54pm
math
what rectangles with whole-centimetre sides have a perimeter of 44cm
Wednesday, April 24, 2013 at 7:50pm
Math 112
A jar of water weighs 15 pounds. When 0.5 of the water is poured out, the weight of the remaining water and the jar is 8.75 pounds. How much does the jar weigh?
Wednesday, April 24, 2013 at 7:08pm
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