Saturday

July 26, 2014

July 26, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math**

1. What are the mean, median, mode, and range of the data set 16, 17, 17, 17, 19, 21, 23, 24? (1 point)mean = 19.3; median = 17; mode = 18 mean = 19.3; median = 18; mode = 17 mean = 18; median = 19.3; mode = 17 mean = 20.3; median = 18; mode = 17 2. Given the data 14, 26, 23...
*Friday, May 23, 2014 at 5:24pm*

**MATH HELP PLEASE!!**

1. Mandy kept track of the trade-in value of a collector’s coin for several months through February of this year. She determined the line of best fit for the data was y = 4x + 12, where y is the trade-in value, in dollars, x months after February of this year. According ...
*Friday, May 23, 2014 at 5:22pm*

**james madison high school algebra**

Can anyone help me with Ashworth high algebra 1 part 2 I really need some help I'm not good with math
*Friday, May 23, 2014 at 5:10pm*

**Math**

Laura is designing a rectangular porch for her house. On her scale drawing, the vertices of the rectangle are (2,7),(8,7), and (2,9). What are the coordinates of the fourth vertex? a)(8,9) b)(7,9) c)(7,2) d)(2,8) Is the answer a?
*Friday, May 23, 2014 at 4:47pm*

**math**

16. If you work 37.5 hours per week at $10.65 per hour, how much is your gross pay for a two-week period? (Round off your answer to the nearest cent.) A. $399.38 B. $788.10 C. $239.26 D. $798.75 i think its c
*Friday, May 23, 2014 at 3:51pm*

**math**

After 75 gallons of oil are removed from a cylindrical thank, its level is lowered from 1/6 to 1/7 of its capacity. How many gallons should now be added to the tank to fill it?
*Friday, May 23, 2014 at 2:48pm*

**math**

A gasoline gauge register 1/8 full.After purchasing 12 gallons of gasoline it registers 7/8 full. What is the capacity of the tank (in gallons)?
*Friday, May 23, 2014 at 2:42pm*

**math**

Joan is three years younger than Martin. How old will Joan be when she is 4/5 his age?
*Friday, May 23, 2014 at 2:35pm*

**math**

1. Cynthia used some of the ordered pairs from the set below to make a new set. {(4, –3), (–2, 5), (5, 4), (7, 2), (2, –7)} She wrote the domain of this set as {2, 4, 5}. Which ordered pairs from the original set did Cynthia use to make her new set? a)(–2, ...
*Friday, May 23, 2014 at 2:08pm*

**math**

1. Gina wrote this system of linear equations: 2x + y = 7 4x + 5y = 11 Which of the following shows the first four steps that Gina could have used to correctly solve this system for x? a) y = 7 – 2x 4x + 5(7 – 2x) = 11 4x + 25 – 10x = 11 25 – 6x = 11 b) y...
*Friday, May 23, 2014 at 2:07pm*

**math**

Ms. Lynn is cutting a piece of bulletin board paper into strips. What size pieces should she cut so that she has the fewest number of strips?
*Friday, May 23, 2014 at 1:58pm*

**Math**

What is 7.061 as a mixed number?
*Friday, May 23, 2014 at 1:38pm*

**Math--2question**

13. What is the surface area of a sphere with a radius of 4 meters rounded to the nearest square meter? (1 point)50 m2 101 m2 201 m2 268 m2 14. What is the volume of a sphere with a radius of 4 meters rounded to the nearest square meter? (1 point)67 m3 201 m3 268 m3 804 m3
*Friday, May 23, 2014 at 1:13pm*

**math**

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2
*Friday, May 23, 2014 at 12:35pm*

**math**

Pamela owns 37.5% of the stock of a corporation and sells 2/3 of her stock at a 10% profit, What percent of this stock does she own after this transaction? a. 12.5% b. 33 1/3% c. 66 2/3% d. 72.5% e. 90% please answer and explain
*Friday, May 23, 2014 at 12:25pm*

**math**

J.C. Nichols department store reports that the average sales on Saturdays is twice that on Thursdays and the average sales on Thursdays is twice that on the other four days.What fraction of the weekly sales are made on Thursdays? a. 1/7 b. 1/5 c. 2/7 d. 1/3 e. 2/5 please ...
*Friday, May 23, 2014 at 12:22pm*

**Math**

Mr. Jefferson has 20 students in his class. He wants to send 4 of these students to pick up books for the class. How many combinations of 4 students can he choose? A)5 B)80 C)4845 D)116,280
*Friday, May 23, 2014 at 10:50am*

**Math**

"if side a = 4, find x and y in a triangle"
*Friday, May 23, 2014 at 10:01am*

**math**

If the difference between x and y is 40° then angles can be x=100° y=80°
*Friday, May 23, 2014 at 8:44am*

**math**

there are 30 marbles in a bag; 4 blue, 10 red,6 white, 10 yellow. You randomly draw5 marbles without replacement. Find the percent of drawing 2 red marbles and at least 2 white marbles.
*Friday, May 23, 2014 at 1:45am*

**Math**

An airplane flying into a headwind travels the 2800 mile flying distance between two cities in 4 hours and 40 minutes. On the return flight, the same distance is traveled in 4 hours. Find the air speed of the plane and the speed of the wind assuming that neither changes. Find ...
*Friday, May 23, 2014 at 12:54am*

**Algebra II**

The grades on the last math exam had a mean of 88%. Assume the population of grades on math exams is known to be normally distributed with a standard deviation of 6. What percent of students earn a score between 72% and 90%? (5 points) 0.6255 0.5843 0.6754 0.5346
*Friday, May 23, 2014 at 12:24am*

**Math**

In this activity, you will design and conduct a survey. Choose a topic for your survey. 1. Collect your data. 2. Summarize the results with a graph and a description. When they say "Summarize the results with a graph," do they mean that I display the results with a ...
*Friday, May 23, 2014 at 12:03am*

**math last set up**

To secure a 618 meter radio tower against high winds, guy wires are attached to a ring 10 meters from the top of the tower. Each wire is anchored 90 meters from the base of the tower. Find the measure of the angle the wire makes with the ground. Round your answer to the ...
*Thursday, May 22, 2014 at 11:44pm*

**math**

A bank wishing to determine the average amount of time a customer must wait to be served took a random sample of 100 customers and found that the mean waiting time was 7.2 minutes. Assuming that the population standard deviation is known to be 15 minutes, find the 90% ...
*Thursday, May 22, 2014 at 11:39pm*

**math**

bystander at the Pegasus Parade, is lying on his back and observing a large balloon of a cartoon character, floating directly above Broadway Street. He is located 32 feet from a point on the street directly beneath the balloon. To see the top of the balloon, he looks up at an ...
*Thursday, May 22, 2014 at 10:43pm*

**Math - Literal Equations**

Please help me with the following: The volume of a prism is found by multiplying the area of the base by the height. A rectangular prism has a volume of 144cm^3, and a square base with a width of 3 cm. What is the height of the prism, in cm? A. 4 B. 8 C. 48\ ......--Both of ...
*Thursday, May 22, 2014 at 10:03pm*

**HELP!!!! MATH**

A boat drops an anchor to the bottom of a lake. The anchor rope makes a 15 degree angle with the boat. The anchor rope is 24 feet long. How deep is the lake to the nearest foot?
*Thursday, May 22, 2014 at 9:05pm*

**math**

In a recent civil service examination, 1/8 of the candidates failed the first part of the test.Of those eligible to take the second part of the competive examination, 2/7 successfully passed.What part of the original candidates were successful in the examination?
*Thursday, May 22, 2014 at 8:54pm*

**math**

Jonathan has 1/3 as many green marbles as he has red marbles and 1/6 as many red marbles as he has yellow marbles.What part of his collection is made up of yellow marbles?
*Thursday, May 22, 2014 at 8:51pm*

**One last math question**

umm yea... I tried solving it but I couldnt do it [18 * (1/2 - 1/9) + 9 / (2/3 - 1/6)] / 2.5 thanks for your help guys i really appreciate it
*Thursday, May 22, 2014 at 8:10pm*

**math**

you are planning to open a candy stand with your friends. you will need to buy 20 candy bars at a wholesale cost of $.30 each. you will need to buy 15 lollipops at a cost of $.05 each. How much money will you spend ALL TOGETHER? its pretty confusing :( and this one: for a ...
*Thursday, May 22, 2014 at 7:58pm*

**Math **

Can an equation also be a function??
*Thursday, May 22, 2014 at 7:29pm*

**5th Grade ADV. Math**

Four teams are playing in a tournament. Each team will play each other one more time before the top two teams play the championship game. How many games will be played? Need some help with this mates.
*Thursday, May 22, 2014 at 7:18pm*

**4th grade math**

find the median: 116,119,121,122,124,128
*Thursday, May 22, 2014 at 7:01pm*

**Math**

Which is not a combination? A. choosing 3 toppings for you pizza B. lining 3 students up in a row C. choosing 2 desserts from a tray of 10 D. choosing 5 students to represent a class of 30 I think its D. Am I right? Thanks.
*Thursday, May 22, 2014 at 6:56pm*

**math**

City Cellular purchased $28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. a. What is the net amount due if City Cellular sends the manufacturer a partial payment of $5,000 on May...
*Thursday, May 22, 2014 at 6:52pm*

**math**

Amanda puts 2 rectangles together to form a new rectangle. both rectangles have a height of 3 inches. the base of one rectangle is 2 inches. the base of the other is 4 inches. if Amanda puts 10 of each rectangle together , end to end, what will be the distance around the new ...
*Thursday, May 22, 2014 at 6:49pm*

**math**

a dog starts chasing a cat when they are 12 meters. for every 7 meters that the dog runs, the cat runs 4 meters. how far does the dog have to run to catch up with the cat?
*Thursday, May 22, 2014 at 6:16pm*

**math**

A boat drops an anchor to the bottom of a lake. The anchor rope makes a 15 degree angle with the boat. The anchor rope is 24 feet long. How deep is the lake to the nearest foot?
*Thursday, May 22, 2014 at 6:14pm*

**Math**

Can the figure below tesselate a plane? Explain your answer. The shape is an arch (like a rainbow) Thanks!
*Thursday, May 22, 2014 at 5:40pm*

**math**

To secure a 500 meter radio tower against high winds, guy wires are attached to a ring that is 5 meters from the top of the tower. The wires form a 15 degree angle with the tower. Find the distance from the base of the tower to the guy wire anchor in the ground. Round your ...
*Thursday, May 22, 2014 at 5:29pm*

**math**

negative 10+8= negative 2 not sure? 9- negative 9= 18?????
*Thursday, May 22, 2014 at 5:28pm*

**math**

Explain Yvonne's mistake in the following problem. 8x + 6x + 2 = 16x
*Thursday, May 22, 2014 at 5:04pm*

**MATH**

If the perimeter of a rectangle is 60m and the area is 225m^2 what is the length of the rectangle?
*Thursday, May 22, 2014 at 5:02pm*

**math**

evaluate the expression when x is equal to 5. x-4 I think it is 5-4=1 but not sure?
*Thursday, May 22, 2014 at 4:40pm*

**math**

Mr chen deposits a certain amount in a bank if the interest of the bank decreased from 3.75% to 3.5% per annum mr chen's interest decrease by 50$ in a year find the sum of amount he deposits
*Thursday, May 22, 2014 at 4:38pm*

**math**

a square plot with area 440m square if it has to be fenced, how many metres of wire Is required?
*Thursday, May 22, 2014 at 4:26pm*

**Math**

Which of the following transformations will never produce a congruent figure? A. rotation B. reflection C. translation D. dilation <------
*Thursday, May 22, 2014 at 3:40pm*

**Math**

1)Let AB be the directed line segment beginning at point A(1 , 1) and ending at point B(-4 , 6). Find the point P on the line segment that partitions the line segment into the segments AP and PB at a ratio of 5:1. A)(-3 1/6,5 1/6) B)(1/6,1 5/6) <---- C)(-3 4/5,31) D)(-2 1/6...
*Thursday, May 22, 2014 at 3:34pm*

**Math**

A stadium manager has signed five acts this year with a combined revenue projection of $1,000,050. The cost for these is expected to average $85,000 per act. How much profit margin does the stadium expect this last year?
*Thursday, May 22, 2014 at 3:33pm*

**math**

what does base mean?
*Thursday, May 22, 2014 at 2:52pm*

**math**

a teacher earns $25'000a year and received a 5% cost if living increase in salary with merit increase. his salary increase by
*Thursday, May 22, 2014 at 12:41pm*

**Math**

Which angle (in radians) corresponds to 23 of a circle
*Thursday, May 22, 2014 at 12:22pm*

**Math please check my answer?**

1)6x+11y=30 A) x-intercept= (-24,0);y intercept =(0,19) B)x-intercept=(0,1/5);y intercept=(11/30,0)<<<< C)x-intercept= (5,0);y intercept=(0,30/11) D)x-intercept= (24,0);y intercept=(0,19)
*Thursday, May 22, 2014 at 12:03pm*

**Math please check my answers?**

1) The linear function f(x) contains the points (-10, -29) and (-2, 83). If g(x) = 25x - 50, which statement is true? A. The functions f(x) and g(x) both have positive slopes. <<< B. The functions f(x) and g(x) both have negative slopes. C. The function f(x) has a ...
*Thursday, May 22, 2014 at 11:46am*

**math(urgent)**

if x+ y is 25 more than x-y then x is what percent of y ?
*Thursday, May 22, 2014 at 6:15am*

**math**

if x y is 25 more than x-y then x is what percent of y ?
*Thursday, May 22, 2014 at 5:33am*

**math**

1. The cost of a regular price to Saint Louis Cardinal baseball was $60. During the World Series, the price increased by 2/5. What did the fans pay? A. $65 B. $84 C. $80 D. $69 my answer is D 2. Abby is touring China for four days. The rental is $38.15 per day plus 12 1/2 ...
*Thursday, May 22, 2014 at 4:53am*

**Math**

Your credit card has a balance of $1000 and an interest rate of 21%. Each month you make the minimum requirement of $20. During January 10 through February 9 billing period you pay the minimum required payment on january 25th. find the average daily balance, finance charge, ...
*Thursday, May 22, 2014 at 1:25am*

**math**

Rich is 1.5 meters tall and cast a 0.75 meter shadow. At the same time a nearby flagpole cast a 3 meter shadow. How tall is the flagpole?
*Wednesday, May 21, 2014 at 9:23pm*

**math (last question #5) @Damon**

5. (2y – 1)(4y – 3) (1 point) –2y + 3 8y^2 – 10y – 3 8y^2 – 10y + 3 8y^2 – 2y + 3 i did the rest (#1 and #3) but im stuck on #5, can u help Damon? thanx
*Wednesday, May 21, 2014 at 9:14pm*

**Math**

A video rental company offers a plan that includes a membership fee of $6 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $48 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount...
*Wednesday, May 21, 2014 at 9:12pm*

**math 6 probaility**

max flipped a pair of coins 60 times. On 24 occasaions, heads appeared on both coins. How is this outcome different from the expected outcome? It occurred 9 more times than expected. It occurred 4 more times than expected. It occurred 6 fewer times than expected It occurred ...
*Wednesday, May 21, 2014 at 8:58pm*

**math 6 probability**

Rick plays football. He makes 75% of his passes. He will be attempting two passes. Rick makes the first one. What is the probability that Rick makes the second pass? 25% 75% 100% 50% I think it's %50 ?
*Wednesday, May 21, 2014 at 8:44pm*

**math**

A section of a hiking trail begins at the coordinates (-7, 5) and follows a straight path that ends at the coordinates (3, 9). What is the rate of change of the hiking trail?
*Wednesday, May 21, 2014 at 8:38pm*

**math **

Find the product 1. (2x)(10x) (1 point) 20x 12x 20x^2 5x 2. –3m(m + 8) (1 point) –3m2 + 24 –3m2 – 24m –24m^2 –4m + 5 3. 4d(2d – 9) (1 point) 8d – 36d –d –28d^2 8d^2 – 36d 4. (3x + 4)(x – 2) (1 point) 3x^2 – 2x &#...
*Wednesday, May 21, 2014 at 8:31pm*

**math 6 probability **

Eric has a spinner that is divided into different colored sections that are the same size and shape. On any spin the theoretical probability of the arrow landing on the red section is 1/5. When Eric spun the arrow x number of times, the arrow landed on the red section 225 ...
*Wednesday, May 21, 2014 at 8:27pm*

**Math**

What is a unit rate?
*Wednesday, May 21, 2014 at 8:12pm*

**Math**

Amita decides that she wants the molds to have a square base.How many of the possible molds can she use?
*Wednesday, May 21, 2014 at 8:06pm*

**Math**

19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with Mr. Green. Use ...
*Wednesday, May 21, 2014 at 7:58pm*

**Math 6 meters help**

A fence encloses a rectangular field. The field is 4 meters longer that it is wide. The total length of the fence is 144 meters. What is the area in square meters of the enclosed field? Choices 1,192 1296 1292 1440 I have tried dividing but getting know where. :( Help with ...
*Wednesday, May 21, 2014 at 7:39pm*

**Math**

A chessboard has 8 rows and 8 columns. A rook and a bishop are put randomly and with equal probability among all pairs of squares of the board. a. What is the probability that the two pieces are put on the squares (1,1) and (1,2)? b. What is the probability that the two pieces...
*Wednesday, May 21, 2014 at 7:12pm*

**Math 6. Correct?**

Amy is making scale drawings of different things in her neighborhood. One house she drew is 30 feet wide. Her scale drawing of the house is 5 inches wide. Which of the following uses the same scale Amy used to draw this house? Is this right my answer below? 29.5 foot wide play...
*Wednesday, May 21, 2014 at 7:01pm*

**Math 6 scale math**

A model of a rail road station has a scale of 1 inch equals 3.5 feet. The dimensions of the model railroad are 34 inches by 18 inches. What are the dimensions of the actual railroad station? 3.5 feet by 18 feet 34 feet by 63 feet 102 feet by 63 feet 119 feet by 63 feet How do ...
*Wednesday, May 21, 2014 at 6:50pm*

**math 6 algebra**

Mikayla wrote the equation below to calculate y, the total amount of money in dollars she will have saved after she has been saving for x weeks. y = 6x + 80 How much more money will Mikayla have saved after 8 weeks compared to 5 weeks? $8 $18 $98 $128 How do i do this?
*Wednesday, May 21, 2014 at 6:40pm*

**math**

A music concert was attended by 450 people. Adult tickets sold for $70 and children’s tickets for $40. If total sales were $27,750, how much of each ticket was sold?
*Wednesday, May 21, 2014 at 6:25pm*

**math**

explain how to graph the inequality 13>=x
*Wednesday, May 21, 2014 at 6:16pm*

**Math Help! **

1. Find the product. (2x)(10x) 20x 12x 20x^2 5x 2. -3m(m + 8) -3m^2 + 24 -3m^2 + 24m -24m^2 -4m + 5 3. 4d(2d - 9) 8d - 36d -d -28d^2 8d^2 - 36d
*Wednesday, May 21, 2014 at 6:08pm*

**Math**

The number p is the product of three different positive prime numbers greater than 2.If the sum of these three prime number is also prime, what is the smallest possible value for p? Won't the 3 number be 3-5-11? Thanks
*Wednesday, May 21, 2014 at 5:41pm*

**Math 6 properties label**

43 + (57+69) (43+57)+69 Are these associative,Commutative, Identity, Inverse property of addition? I feel it is Associative Property of addition.
*Wednesday, May 21, 2014 at 5:13pm*

**Math - Inequalities**

Please help with the following: What is an open dot, and what is a closed dot? Also, when are they used in inequalities? I am not really sure about what they are. The lesson has not taught me anything about open dots and closed dots. I have also looked them up, but I got ...
*Wednesday, May 21, 2014 at 4:47pm*

**Math 6 proportion **

21% reptiles, 11% are birds. There are a total of 1,500 animals in the zoo. Is this the correct proportion that I wrote to solve? 11/21 = r/1,500
*Wednesday, May 21, 2014 at 4:43pm*

**math**

A line has a run of 5 feet and a rise of 13 feet. Determine the slope.
*Wednesday, May 21, 2014 at 4:35pm*

**math**

The scale on a map is 1cm :50 m.determine a distance of 4 cm in metres
*Wednesday, May 21, 2014 at 4:25pm*

**math 6 rule pattern**

The same rule is used on each of these number column A to get the numbers in Column B. COlumn A B -3 -5 0 1 3 3 6 13 Which could be the rule? Multiply by 2, then add 1 add 1 Subtract 2 Multiply by 3, then add 4 I picked that last one, But I know I am wrong. Help?
*Wednesday, May 21, 2014 at 4:00pm*

**Business Math**

248.24 is 50% of what number?
*Wednesday, May 21, 2014 at 3:54pm*

**Math 6 gemoetery**

A business owner wants to have a rectangular parking lot resurfaced. The lot is 93 feet long by 58 feet wide. Basesd on a cost of $2.47 per square foot, the owner incorrectly estimated that it would cost $12,000 to have the lot resurfaced. Which could be used to get an ...
*Wednesday, May 21, 2014 at 3:37pm*

**math ~dont know all but check some~ pls help!!!**

1. Draw a model to represent the polynomial x2 + 2x + 4. (1 point) 1 big square, 1 tall rectangle, 4 little sqaures 1 big square, 2 tall rectangles, 4 little sqaures in the shape of an "L" 2 big sqaures, 4 little squares none of these 2. Simplify the polynomial. &#...
*Wednesday, May 21, 2014 at 2:36pm*

**math**

What does the word rational coordinates Mean? What are they used for and what is a real world problem that can help me understand it?
*Wednesday, May 21, 2014 at 2:07pm*

**math**

ted has $20,000 invested in mutual bonds from the city of L A.these bonds pay an average return of 5.4% what is the after tax return for the current year on this municipal bond?
*Wednesday, May 21, 2014 at 1:59pm*

**math/financial planning**

bill is in a 30% marginal tax bracket and lives in los angeles and has invested $20,000 in corporate bonds which earns average annual income of 7.5% what will be bills tax return for the current year?
*Wednesday, May 21, 2014 at 1:49pm*

**math**

you have $5 for lunch. You bought a turkey sandwich for $2.25.Write and solve an inequality to show much more can spend.
*Wednesday, May 21, 2014 at 1:05pm*

**English**

Identify the incorrectly punctuated sentence. A.) I went to the library and checked out two books, a movie, and an audio recording. B.) I promised to be on time for the are show so that I could help sign up the participants. C.)I want to learn more about Ireland, but y ...
*Wednesday, May 21, 2014 at 12:59pm*

**math **

there is a monthly fee of $35 at your fitness center. You have spent $700 in fees at the fitness center since you have joined.Write and solve an equation to determine how many months you were a member
*Wednesday, May 21, 2014 at 12:45pm*

**math**

A train leaves LAX traveling 65 MPH and another train leaves NY traveling at 35 MPH…at what destination will they collide
*Wednesday, May 21, 2014 at 12:44pm*

**English**

identify the sentence in which the bolded verb does not agree with its subject. A.) Everyone on the team WORKS together well. B.) Both of them ARE LOOKING forward to the field trip. C.) Neither of the boys IS EXCITED about playing football.*********************** D.) One of ...
*Wednesday, May 21, 2014 at 12:38pm*

**math**

In which quadrant does the terminal side of the angle with measure -245 degree lie? Quadrant I Quadrant IV Quadrant III Quadrant II None
*Wednesday, May 21, 2014 at 12:36pm*

**Math**

six people can sit in one table that is rectangular when two tables are placed together ten people can be seated how many people can be seated with three tables?
*Wednesday, May 21, 2014 at 12:31pm*

**math **

The 3rd term in an arithmetic sequence is 12, the 7th term is 24, a) How many common differences are there between a_3 and a_7? b) What is the common difference of the sequence? c) What is the first term in the sequence? a_1 d) What is the expression for this arithmetic sequence?
*Wednesday, May 21, 2014 at 12:06pm*

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