Monday

March 30, 2015

March 30, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

In “Adventures of Isabel,” how is the doctor different from Isabel’s other enemies—the bear, the witch, and the giant? He is Nice to Her He Frighten Her He gets killed He may be Real Witch one pls? I think It's The first one..
*Monday, February 2, 2015 at 1:39pm*

**math**

what numbers when you multiply together give you a product of -3 and a sum of 0? if you dont know, just tell me
*Monday, February 2, 2015 at 1:38pm*

**math**

The cost of one pound of peanuts is 60% of the cost of one pound of cashews. If one pound of cashews costs $2, what is the cost of one pound of peanuts? What is the total cost of two pounds of peanuts and one pound of cashews?
*Monday, February 2, 2015 at 12:37pm*

**Math **

Identify the sequence as arithmetic, geometric, or neither. Explain the answer. 1.6, 0.8, 0.4, 0.2,...... I m not sure please help
*Monday, February 2, 2015 at 12:28pm*

**Math**

Which is a table of values for y=x-6 1. X. Y -5. 1 -8. -14 -7. -13 2. X. Y -5. -11 -8 -2 -7 -13 3. X. Y -5. -11 -8. -14 -7. -13 4. X. Y -5. -1 -8. -2 -7. -1 Please help
*Monday, February 2, 2015 at 12:23pm*

**math**

sample of 40 observations is selected from one population with a population standard deviation of 4.6. The sample mean is 101.0. A sample of 47 observations is selected from a second population with a population standard deviation of 4.0. The sample mean is 99.3. Conduct the ...
*Monday, February 2, 2015 at 11:37am*

**math**

have 100 toys for $250.00 with trade discount series of 7/10/3 what is net discount price using net decimal equivelent
*Monday, February 2, 2015 at 11:36am*

**Math**

A quadrilateral contains two equal sides measuring 12 cm each with an included right angle. If the measure of the third side is 8 cm and the angle opposite the right angle is 120 degrees, find the fourth side and the area of the quadrilateral.
*Monday, February 2, 2015 at 10:55am*

**math**

the ratio of boys to girls in class is 2:3. If Ms. Wise has 24 students in her class, how many girls are in the class. Please show work
*Monday, February 2, 2015 at 9:44am*

**Math**

formalize the following statment: a_n is a sequence that doesnt converge to L∈R. prove that the sequance (1/n) does not converge to 1. Can someone please explain to me what i have to do in the question i do not understand it so well.
*Monday, February 2, 2015 at 8:11am*

**math**

The first, the third and the seventh terms of an increasing arithmetic progression are three consecutive terms of a geometric progression. In the first term of the arithmetic progression is 10 find the common difference of the arithmetic progression
*Monday, February 2, 2015 at 1:48am*

**math**

A solid cone of height 12cm and radius 9 cm is recast into a solid sphere. Calculate the surface area of the sphere.
*Monday, February 2, 2015 at 1:47am*

**math**

Two baskets C and D each contain a mixture of oranges and lemons. Basket C contains 26 oranges and 13 lemons. Basket D contains 18 oranges and 15 lemons. A child selected basket at random and picked at random a fruit from it. Determine the probability that the fruit picked was...
*Monday, February 2, 2015 at 1:45am*

**math**

Water flows from a tap. At the rate 27cm3 per second, into a rectangular container of length 60cm, breathe 30 cm and height 40 cm. If at 6.00 p.m. the container was half full, what will be the height of water at 6.04 pm?
*Monday, February 2, 2015 at 1:43am*

**math**

A bus takes 195 minutes to travel a distance of (2x + 30) km at an average speed of (x – 20) km/h. Calculate the actual distance traveled.
*Monday, February 2, 2015 at 1:41am*

**Math**

In a class of students, 80 spoke English, 110 spoke spanish, 100 spoke french, 50 spoke english & spanish, 30 spoke english & french, 20 spoke french & spanish, 10 spoke english & frnech, but no spanish. How many spoke spanish & french, but not english? The answer is 0. I was ...
*Monday, February 2, 2015 at 1:23am*

**math**

Thom has a scale model of his car . The scale is 1:12 . If the actual car has 16-inch weeks,what size are the wheels on the scale model?
*Sunday, February 1, 2015 at 9:55pm*

**Math**

.85km/s=m/min
*Sunday, February 1, 2015 at 9:52pm*

**4th grade math**

A park guide plans the swan boat rides for 40 people. Each boat can carry 6 people at a time. What is the best way to interpret the remainder of 40/6 in this situation so that everyone gets a ride? How do I show the work?
*Sunday, February 1, 2015 at 9:40pm*

**4th grade math**

There are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty? We added and got 189 then divided by 3. But it doesn't look correct. How do we show the work?
*Sunday, February 1, 2015 at 9:24pm*

**4th grade math**

Jake wants to distribute 543 marbles equally among 7 of his friends. In what place is the first digit of the quotient?
*Sunday, February 1, 2015 at 9:17pm*

**Math**

Will, Micah, and Sue went to dinner. Will paid 1/3 of the dinner bill. Micah and Sue paid in the ratio 2:5. If Sue paid $6 more than will, how much di the dinner cost?
*Sunday, February 1, 2015 at 8:43pm*

**Algebra **

I am a parent trying help my son, who has trouble understanding and remembering how to work his math. I never had this math, so it is hard for me to explain it. If I see it worked out. Then I can explain it, (I, Think) here is the problems. A ball is tossed into the air and it...
*Sunday, February 1, 2015 at 8:19pm*

**4th grade math**

The school choir has 48 singers with high voices, 53 singers with middle voices, and 39 singers with low voices. the singers stand in 4 equal rows at concerts. How many singers are in each row? How do I show my work for this?
*Sunday, February 1, 2015 at 8:07pm*

**4th grade math**

Amanda and her four sisters divided 1,021 stickers equally. About how many stickers would each girl receive? How do I show my work?
*Sunday, February 1, 2015 at 8:02pm*

**Math**

I am a parent trying help my son, who has trouble understanding and remembering how to work his math. I never had this math, so it is hard for me to explain it. If I see it worked out. Then I can explain it, (I Think) here is the problems. A ball is tossed into the air and it ...
*Sunday, February 1, 2015 at 7:47pm*

**Math**

Harrison says that to convert a mixed number to a fraction greater than 1, he thinks of it this way: 4 2/5= 5/5 + 5/5 + 5/5 + 5/5 + 2/5 = 22/5. Does this strategy work? Explain
*Sunday, February 1, 2015 at 7:26pm*

**Math**

A jug holds 3.75 liters of water. How many millimeters can fit into the bottle
*Sunday, February 1, 2015 at 7:15pm*

**Math**

A hardware store will deliver up to 6 items for a $25 delivery charge. There is a charge of $4 for each additional item to be delivered. a. Write a piecewise function for the cost of having x items delivered. b. What is the charge to have 14 items delivered?
*Sunday, February 1, 2015 at 7:14pm*

**Math**

I am a parent and need help with this problem so I can show my daughter how to complete. A recipe calls for 8 cups of flour. The amount of flour is 10 cups less than twice the amount of milk. Write and solve an equation to find the amount of milk in the recipe. I really only ...
*Sunday, February 1, 2015 at 6:55pm*

**Math **

Carlos has 32 iris bulbs and 40 tulip bulbs to plant. He wants to plant them in rows with one type of bulb in each row. He wants all of the rows to have the same number of bulbs. The greatest number of bulbs he can plant in each row is?
*Sunday, February 1, 2015 at 4:58pm*

**Math**

An airplane in Australia is flying at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will take it directly over a kangaroo on the ground. How fast is the angle of elevation of the kangaroo's line of sight increasing when...
*Sunday, February 1, 2015 at 3:25pm*

**math**

1/4 of the T-shirts are pink, 1/2 T-shirt are white what remainder of the T-shirt is purple
*Sunday, February 1, 2015 at 3:01pm*

**Math 20-1**

The most convenient test point to use to determine if the points in a region defined by y<1.4x+0.6 satisfy the inequality is
*Sunday, February 1, 2015 at 2:46pm*

**Math 20-1**

The length of a rectangle is 5 cm more than its width. What are the possible dimensions of the rectangle if the area must be at least 84 cm^2 ? (2 marks)
*Sunday, February 1, 2015 at 2:20pm*

**Math problems**

a farmer plants .6 0f a field with peanuts. the field is 5.6 acres in size. how many acres are planted with peanuts
*Sunday, February 1, 2015 at 2:07pm*

**math**

The measures of two complementary angles are in the ratio 1:4. What are the degree measures of the two angles? 18° and 72° 22.5° and 67.5° 36° and 144° 45° and 135°
*Sunday, February 1, 2015 at 1:21pm*

**math**

br+bv+ry+vy
*Sunday, February 1, 2015 at 12:12pm*

**math**

x_1=3/2, x_(n+1)=3/(4-x_n) prove that the series x_n converges and find its limit.
*Sunday, February 1, 2015 at 11:59am*

**Math**

Write the equivalent fraction. 6 2/5, 3 7/10
*Sunday, February 1, 2015 at 10:33am*

**math**

How many revolutions does a merry go round make during 6,5 min if its average rotation speed is 2,4 r.p.m?
*Sunday, February 1, 2015 at 10:30am*

**Math**

Proove that: a)2^(1/2) is not rational. b) prove that 2^(1/3) is not rational. I have managed to prove the first part, but i am stuck on the second can someone give me an hint please?
*Sunday, February 1, 2015 at 10:02am*

**Math**

You have 100 pieces of candy in five bowls. The sum of candy in bowl a and bowl b is 30 pieces. The sum of candy in bowl b and c is 36 pieces. The sum of candy in bowl c and bowl d is 49 pieces of candy. The sum of bowl d and bowl e is 47 pieces of candy. How many pieces of ...
*Sunday, February 1, 2015 at 9:23am*

**math **

The sum of the first 10 term of an arithmetic sequence is 145 and the sum of the fourth and ninth term is five times the third term. Determine the first term and constant difference.
*Sunday, February 1, 2015 at 5:03am*

**math**

ram weighs 45kg and mary weighs m kg. write an expression for their combined weight.
*Sunday, February 1, 2015 at 12:17am*

**math**

what are the coordinates of the shadow cast on the xy plane by a small object placed at the point (10,7,20) assuming that the sun's rays are parallel to the vector (5,3,-2)
*Saturday, January 31, 2015 at 11:19pm*

**Math**

I am 4-digit odd number. I am greater than 7000. The digit in my hundreds place is smaller than the digit in my tens place. What number can I be if I am made up of all the digits shown below? 6827
*Saturday, January 31, 2015 at 10:27pm*

**math**

Three pupils John, Daniel and David contributed a total of $400 for a party. John contributed $30 more than Daniel while, David contributed three times as much as John. If David contributed $x, write the equation can be used to find David's contribution?
*Saturday, January 31, 2015 at 9:10pm*

**Math- Vector Calculus**

A manufacturer sells two products, one at a price of $3000 a unit and the other at a price of $12000 a unit. A quantity q1 of the first product and q2 of the second product are sold at a total cost of $5000 to the manufacturer. Express the manufacturer's profit, as a ...
*Saturday, January 31, 2015 at 8:56pm*

**math**

the point t' (-4,-7) is the image of point t under a transformation. if point t is (-4,7) what translation could have occurred
*Saturday, January 31, 2015 at 7:13pm*

**math**

When a car makes an emergency stop on dry road, it leaves skid marks. The speed S, in miles per hour, of the car when brakes were applied is related to the length L, in feet, of the skid mark. Functional notation is needed, please help.
*Saturday, January 31, 2015 at 6:12pm*

**math**

what is the greatest common factor of the polynomial show? rectangle tiles that have 6x and 6 look like this: ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** !!! !!! !!! !!! !!! !!!
*Saturday, January 31, 2015 at 6:11pm*

**COMM/215**

I would like to know if i have used properly structured sentences for the following: 49. To succeed in the new economy, workers will have to learn throughout their careers adapt to changing circumstances, and self-motivate when needed. 50. Some students hate math; some ...
*Saturday, January 31, 2015 at 5:00pm*

**math**

on a map, the key indicates that 2.5 centimeters equals 10 miles. a road on the map runs for 30 centimeters. how long is the road?
*Saturday, January 31, 2015 at 4:35pm*

**math**

5,280 divided by 9 = is what?
*Saturday, January 31, 2015 at 3:38pm*

**Math**

Samuel, Elis and David sell newspapers. One day David sold 20 newspapers more than Elis who sold 10 newspapers more than Samuel. The total number of newspapers they sold that day was 140. If Elis sold y newspapers, write the equations can be used to find the number of ...
*Saturday, January 31, 2015 at 3:35pm*

**Math**

A pill weighs 70 mg. 7/9 of the pill is the active ingredient. How many milligrams are in the part of the pill that is not the active ingredient? So if 7/9 is active that means 2/9 is not active. I did 2 divided by 9 which gives me .22 I then multiplied 70 by .22 which gives ...
*Saturday, January 31, 2015 at 3:20pm*

**Math**

The number of women passengers in a bus was X. The number of children in the bus was three times that of men passengers but was 6 more than that of women. Write equation that shows the total number of passengers in the bus?
*Saturday, January 31, 2015 at 3:03pm*

**math**

A rectangular plot of land measures 40m by 30m. There is a wall on one of the longer sides. Four strands of wire are to be used to fence the three remaining sides of the plot. What length of wire is required?
*Saturday, January 31, 2015 at 1:40pm*

**math**

In a group of 126 spectators the ratio of men to women was 3:4. What is the new ratio if 2 more men and 8 more women joined the group of spectators?
*Saturday, January 31, 2015 at 1:06pm*

**Math**

A rectangular container 45cm long and 25cm wide was full of water. After removing 22.5 liters of the water, the level of water became 4cm high. What was the height of the container?
*Saturday, January 31, 2015 at 12:54pm*

**math**

John and David had packets of tea to be packed into cartons. Each carton holds 46 packets. John packed 63 cartons and remained with 24 packets while David packed 54 cartons and remained with 19 packets. How many more packets of tea had John than David? = 63(46) + 24 – (54...
*Saturday, January 31, 2015 at 12:27pm*

**math**

A clock was set on Monday at 8.30 a.m. On Tuesday, the following day, the clock showed 8.45 p.m. when the correct time was 8.30 p.m. How many minutes was the clock gaining in every 24 hours?
*Saturday, January 31, 2015 at 12:23pm*

**Math**

If the original number is 8.6 and the new number is 7, what is per cent decrease ?
*Saturday, January 31, 2015 at 10:07am*

**Math**

at a boutique, an evening gown is marked at a profit of 40% on the cost price. it is sold in a sale at 20% discount. a. Find the actual profit as a percentage of the cost price. b. if a customer bought it for $448, find i. the marked price ii. the actual profit
*Saturday, January 31, 2015 at 9:14am*

**math**

Express 0.78 .as a fraction a/b where a,b,=integer
*Saturday, January 31, 2015 at 7:52am*

**Pure math,Life science,Geography and History**

Hi I'm grade10 and I was wondering if you's could help Me to get a career examples after matric because my school took away our Physics for unknown reasons so insted of Physics or another subject that would help you in the future they gave us History please help me ...
*Saturday, January 31, 2015 at 6:54am*

**math**

one out of 42 high school ball players plays college ball. one out of 47 college players plays professional ball. what fraction of high school players professional ball?
*Saturday, January 31, 2015 at 2:53am*

**math - hw help**

A rectangular picture is 3cm longer than its width, (x+3). A frame 1 cm wide is placed around the picture. The area of the frame alone is 42 cm^2. Find the length of the picture _______cm. _________________ ________ ! ! ! ! ! ! ! ! !x+6 ! ! ! ! ! ! ! !_______! ! x+3 ! ...
*Saturday, January 31, 2015 at 1:55am*

**math help**

(x+5)^2 - (x-5)^2 is factored, it can be written as Ax where A is a whole number. The value of A is?
*Saturday, January 31, 2015 at 12:05am*

**math**

what is the greatest common factor of the polynomial show: rectangle tiles that have 6x and 6 look like this: ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** !!! !!! !!! !!! !!! !!!
*Friday, January 30, 2015 at 11:25pm*

**Math**

A cubic foot of water weighs 62.4 lb. A basketball has a radius of 0.39 ft. How much would the basketball weigh if it was filled with water I did 4 times pie times 0.39^3 over 3 and get 0.24834888, I just need to know what to do now ^= power symbol
*Friday, January 30, 2015 at 11:16pm*

**math**

please can you explain this to me I don't understand! Find the value of the following 10! 11! over 7! 13! If your answer is not an integer, write it as an exact fraction. thank you so very much
*Friday, January 30, 2015 at 10:59pm*

**math**

what is the expression for the area of the shaded region in the diagram in factored form? diagram: (shaded) Large circle have diameter of 8x (clear) small circle have diameter of 8y ___ my work: Area of large circle - Area of small circle Pi * 4^2 - pi * 4^2 = pi ( 2x+2y)(2x-...
*Friday, January 30, 2015 at 9:46pm*

**Math**

Express the function in the form f o g if g(t)=csc t u(t)= sqrt(csc t) f(t)=?
*Friday, January 30, 2015 at 9:08pm*

**math -factor**

factors of 9x^2 - 1/100. = (3x + 1/50)(3x - 1/50) ?
*Friday, January 30, 2015 at 8:33pm*

**math**

IF 121a^2b^2 + kab + 4b^2 is a perfect square trinomial, then the positive value of k must be ________. my work: 121a^2b^2 = 11ab 4b^2 = 2b Then 2nd term k is twice the product of 11ab & 2b , so the value of k must be: 44 am i right or wrong?
*Friday, January 30, 2015 at 7:49pm*

**MATH**

which following trinomial is a perfect square? A. x^2 + 2x - 3 B. x^2 - 4x - 4 C. x^2 + x + 1/4 D. x^2 - x -56 question B & C 1-term and 3-term is perfect square. how do figure which is perfect square?
*Friday, January 30, 2015 at 7:25pm*

**math**

If n is a positive integer, then what is the value of (2/3)^n (1 1/2)^n-1? for positive integer n? Express your answer as a common fraciton?
*Friday, January 30, 2015 at 6:24pm*

**math**

cube root of 1331 * square root of (1/4) = 5.5 correct?
*Friday, January 30, 2015 at 6:01pm*

**Math**

What is the GCF of the terms 8c^3+12c^2+10c? my answer is 2c
*Friday, January 30, 2015 at 5:54pm*

**Math**

A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she notices that it cannot be done with the number of students in her class. However, if the number of students were any larger, the assignments could be made...
*Friday, January 30, 2015 at 5:43pm*

**math**

Mrs. Healthy walked along a running track at 2400 m/h. She took 4 min more than Mrs Wise to walk the entire length of the track once. If the track is 800 m ling, Mrs Wise's average speed was ____ m/min.
*Friday, January 30, 2015 at 5:40pm*

**Math**

A rectangle family room is 8 yards long and 5 yards wide . At $30 per square yard , how much will it cost to put down vinyl sheet flooring in the room ?
*Friday, January 30, 2015 at 4:36pm*

**math**

Four students, Rick, Robin, Ryu, and Roy are registered for the same class and attend inde pendently of one another, Rick 96.5% of the time, Robin 93.3% of the time, Ryu 8 8.2 % of the time, and Roy 77.9 % of the time. What is the probability that on any given day a) at least...
*Friday, January 30, 2015 at 2:34pm*

**math**

Hi my question is find the value of the following. 6! 8! over 9! 5! If your answer is not an integer, write it as an exact fraction. Thank you so much. I have no idea how to do it.
*Friday, January 30, 2015 at 2:14pm*

**math**

The box plots show attendance at a local movie theater and high school basketball games: Which of the following best describes how to measure the spread of the data? The IQR is a better measure of spread for movies than it is for basketball games. The standard deviation is a ...
*Friday, January 30, 2015 at 1:20pm*

**Math- check my answers pls**

Find the area of blue portion of the irregular shape to the right. Round to the nearest tenth. connexus . com /content/media/642756-212012-23145-PM-1090153268.png i'll upload to imgur if it doesn't work A. 2.7 in2 B. 9.7 in2*** C. 3.4 in2 D. 8.3 in2 i think it&#...
*Friday, January 30, 2015 at 12:25pm*

**Mowat Park High School**

History, geography, life science and math litrecy what career choice do or career field do I go to with these subjects
*Friday, January 30, 2015 at 12:16pm*

**math**

in an arithmetic sequence the common difference is equal to 2.the first term is also the first term of a geometric sequence. the sum of the first 3 terms of an arithmetic sequence and the sum of the first 9 terms of an arithmetic sequence form the 2nd and 3rd terms of a ...
*Friday, January 30, 2015 at 12:13pm*

**7th grade math **

i am having a hard time understanding the venn diagram can someone explain it to me
*Friday, January 30, 2015 at 11:34am*

**math**

Select all pairs of ratios that form a proportion. 1/6,4/20 7/9,28/36 14/18,21/27 30/80,6/18
*Friday, January 30, 2015 at 10:59am*

**math**

WHY IS 9+10 = 21????????????????????????? WTF KALUS
*Friday, January 30, 2015 at 10:05am*

**Math**

A rectangle has sides of length x cm and 2x - 4cm and the length x cm at time t seconds is given by x = 2 + 3t, (t >=0) . Show that the area, Acm2 , the rectangle, in terms of t is A =12t + 18t^2 . Hence find the rate of change of the area at the instant when t = 2..... ...
*Friday, January 30, 2015 at 8:19am*

**math**

a wire of length 24cm is bent to form a square.find the area of the square formed.
*Friday, January 30, 2015 at 6:37am*

**Math**

When Mrs Lee was 44 years old, her son was twice her daughter's age. Mrs Lee would be twice her son's age when her daughter was 26 years old. How old would Mrs lee be when her daughter was 20 years old?
*Friday, January 30, 2015 at 3:44am*

**English**

1. I studied math for 10 years, but I'm still not good at it. 2. I have studied math for 10 years, but I'm still not good at it. ----------------- Which one is grammatical?
*Friday, January 30, 2015 at 12:48am*

**math**

consuelo's living room is in the shape of a rectangle and has an area of 360 square feet. the width of the living room is 5/8 its length. what is the length of the living room
*Friday, January 30, 2015 at 12:33am*

**math**

marisol is painting on a piece of canvas that has an area of 180 square inches. the lenght of the painting is 1 1/4 times the width. what are the dimensions of the painting
*Friday, January 30, 2015 at 12:24am*

**math**

Arnie skates 1 3/4 miles to the lake, then goes 1 1/3 miles around the lake, and then back home. How many miles did he skate?
*Friday, January 30, 2015 at 12:24am*

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