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April 1, 2015

April 1, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

Kibet left school by bicycle at 8:00 a.m. and took 1 ½ hours to reach the market 20 km away. Akinyi left the school for the market by car at 8:30 a.m. The average speed of the car was 80 km /h. What was the difference between their arrival times?
*Tuesday, March 17, 2015 at 1:57pm*

**Math!! Help ASAP**

6. Which is the best measure of central tendency for the type of data below- the mean, the median, or the mode? Explain. Hours of sleep at night A. Median; there will be outliers B. Range; there are no outliers C. Mode; the data are non-numeric D. Mean; the outliers are ...
*Tuesday, March 17, 2015 at 10:59am*

**Math!! Help ASAP**

3. The Step-And-Leaf Plot below could NOT represent which of the following? 1 | 1 2 2 7 7 2 | 1 4 4 7 3 | 3 5 6 8 9 Ket: 3 | 5 means 3.5 A. The average number inches rain in june B. The height of plant seedlings, in inches C. The weight of phonebooks, in pounds d. The height ...
*Tuesday, March 17, 2015 at 10:53am*

**math**

a sphere of radius 3m is circumscribed about a regular triangular prism. if the base edge of the prism is 2m, find the volume of the prism
*Tuesday, March 17, 2015 at 8:57am*

**math**

Draw a picture that represents 3x50=150?
*Tuesday, March 17, 2015 at 7:45am*

**Math**

a simple Model (model 1)of distance,d meters,fallen in time t seconds by free-fall skydiver is d(t)=4.9t^2 a. sketch the model b. a different model (model 2) for the distance travelled by a skydiver is d(t)=4.9t^2-0.1t^2.sketch a graph of this function
*Tuesday, March 17, 2015 at 5:43am*

**math **

In a class, 3/4 of the pupils wore spectacles.1/3 of the pupils who did not wear spectacles were boys.What fraction of all the pupils were boys who did not wear spectacles?
*Tuesday, March 17, 2015 at 3:38am*

**math**

Ridwan work in a factory packing computers. He packed 1/3 of all the computers in the morning. 1/2 of the computers he packed were shipped out immediately after packing. What fraction of all computers in the factory was shipped out after packing?
*Tuesday, March 17, 2015 at 2:10am*

**math**

A bus left the bus station with 90% of the seats full. After six stops, a total of 26 passengers got of the bus and 4 passengers boarded the bus. Now, 35% of the seats are full, How many seats are there on the bus ? 35%*2= 70%= 2*22=44 seats.
*Tuesday, March 17, 2015 at 1:25am*

**math**

Find the point P on the curve y2 = 4ax which is nearest to the point (11a, 0).
*Tuesday, March 17, 2015 at 1:05am*

**math**

Find the unit vector perpendicular to the plane ABC where the position vectors of A, B and C are 2 ^i – ^j + ^ k , ^i + ^j + 2 ^ k and 2 ^i + 3 ^ k respectively.
*Tuesday, March 17, 2015 at 1:03am*

**math**

Shelby walks at a constant rate. the equation that represents this relationship is d=4t, where d is the distance in miles and t is the time in hours. What does the constant 4 tell you about shelby? Make use of structure. What question is answered by the equation d=4(32)?
*Tuesday, March 17, 2015 at 12:58am*

**Math**

A bag contains 22 1\2 cups of flour. A recipe for pancakes uses 1 1/4 cups of flour. How many batches of pancakes can be made with one bag of flour?
*Tuesday, March 17, 2015 at 12:01am*

**Math**

In this document... berkleyschools . org/NorthstarMedia/download/123084?token=OCaRojCyVwc%3D Is A the correct answer to question 70?
*Monday, March 16, 2015 at 11:37pm*

**math**

Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2) with x ≠ 2. Find all values of x where the graph of g has a critical value. For each critical value, state whether the graph of...
*Monday, March 16, 2015 at 10:49pm*

**Math**

Let AB be taken as unity, and let it be required to multiply BD by BC. I have only to join the points A and C, and draw DE parallel to CA; then BE is the product of BD and BC. Show that the length of BE is the product of the lengths BD and BC.
*Monday, March 16, 2015 at 9:33pm*

**Math**

John has 4 cups filled with fruit juice.He said that he has a gallon of fruit juice.Is his statements reasonable?explain why or why not.
*Monday, March 16, 2015 at 9:19pm*

**MATH**

DRIVING DOWN A 10% GRADE, THEN YOU DESCEND TO 20 FEET BELOW YOUR STARTING POINT. wHAT CONCEPT DOES THE GRADE RELATE TO?
*Monday, March 16, 2015 at 9:05pm*

**math**

8 friends attend a read a thon. They take turns reading aloud for a total of 3 hours. If each friend reads for the same amount of time, what fraction of each hour does each friend spend reading?
*Monday, March 16, 2015 at 8:57pm*

**math**

How do I write one equations in slope-intercept form, and three other lines in slope-intercept form that are perpendicular to the first line ?? -- one line: y=mx+b second line perpendicular y= -x/m + c of course, you have to know m, b, c. ----- for the second line ...
*Monday, March 16, 2015 at 8:51pm*

** Math**

The following circle graph was published in the Cane Country annual report. If there are 1,000 registered voters in Cane Country, how many 35-45 years old? On the graph 35-45 years old is graph at 30%. A. 150 voters B. 250 voters C. 300 voters D. 350 voters Is the answer C? ...
*Monday, March 16, 2015 at 8:29pm*

**math**

You receive a salary of $400 each week plus 12.5% commission on all sales. In on week you sold $2300 worth of merchandise. What is your total earnings for that week.
*Monday, March 16, 2015 at 8:20pm*

**Math**

Samuel, Thea, Ling, Jose, and Mark all want to go on the trip. How many different combinations are possible for the remaining 4 spots?
*Monday, March 16, 2015 at 8:08pm*

**Math Problem**

Mrs. Bond made a deposit of $100 into her checking account. Then she wrote checks for $97.54 and $48.27. If her previous balance was $320.39, what is her new balance? - I also need help with Mika bought two copies of the same book and a tape priced at $11.95. She gave the ...
*Monday, March 16, 2015 at 8:02pm*

**Math**

Q. The rondo stared 7 minutes late. It was scheduled to last 3 hours. But it ran 22 minutes longer. If the rodeo ended at 9:59 p.m, at what time did it begin? - A. So, do I mulpite 7 by 3 = 21, than muplite that answer by 22. than divide that by 9:59 p.m?
*Monday, March 16, 2015 at 7:59pm*

**Math 7th grade**

Geraldo bought some computer software on layaway. He paid $12 down and must make a payment of $5 each week for 4 weeks. How much will Geraldo pay in all?
*Monday, March 16, 2015 at 7:54pm*

**Math**

Can you draw a rectangle with a scale of 0.5cm:2ft? What would it look like?
*Monday, March 16, 2015 at 7:43pm*

**math**

write a word probelm that has more than one step in the solution
*Monday, March 16, 2015 at 7:36pm*

**Math**

What is the difference between unique triangle, more than one triangle, and no triangle?
*Monday, March 16, 2015 at 7:33pm*

**Math**

On their vacation, the Li family traveled from their home to a resort in the mountains. The odometer in their car read 35286.9 miles when they started and 35514.2 miles when they returned home. What was the distance from their home to the resort?
*Monday, March 16, 2015 at 7:28pm*

**Math**

the eighth grade students are selling magazine subscriptions to raise money for a class trip. they earn $3 for every subscription they sell. so far, they have earned $228 of the $396 needed. how many more subscriptions must the students sell to meet their goal?
*Monday, March 16, 2015 at 7:25pm*

**Math**

I'm so confused. 3=6.2*y
*Monday, March 16, 2015 at 7:22pm*

**Math**

Can you please explain how to do this? 8=4w divided by 3
*Monday, March 16, 2015 at 7:09pm*

**math**

paige's dad just made a new front door for their house.the door measures 84 inches by 54 inches.how many square inches will paige have to paint if she paints the front side of the door.
*Monday, March 16, 2015 at 7:02pm*

**Math**

Q. The rodeo stared 7 minutes late. It was scheduled to last 3 hours, but it ran 22 minutes longer. If the rodeo ended at 9:59 p.m, at what time did it begin? - A. Do I muplite 7 by 3 and than add the answer with 22?
*Monday, March 16, 2015 at 6:59pm*

**Math**

Solve -11>t + 7
*Monday, March 16, 2015 at 6:56pm*

**Math**

Name a flat surface in nature that has reflection symmetry and one that has rotational symmetry.
*Monday, March 16, 2015 at 6:52pm*

**Math**

Which capital letters, in block print style (A, B, C, D, E, F, G, H, I J, K L M, N O, P, Q, R, S, T U, V, W, X, Y, Z) have reflection symmetry(ies)? Rotational symmetry(ies)?
*Monday, March 16, 2015 at 6:51pm*

**Math**

Which of the five types of regular polyhedra is your favorite. Why?
*Monday, March 16, 2015 at 6:51pm*

**Math**

Is a shape congruent to itself? Explain you answer.
*Monday, March 16, 2015 at 6:51pm*

**Math**

I am a polyhedron. I have 7 faces. Six of my lateral edges are equal in length. One of my faces has six sides. Who am I?
*Monday, March 16, 2015 at 6:50pm*

**Math**

How many lateral edges does a 50-gonal pyramid have? How many lateral faces?
*Monday, March 16, 2015 at 6:50pm*

**Math**

Based on examples she has seen, a child might think that a trapezoid is" a shape with 4 sides, top and bottom are parallel, bottom longer than the top, no sides the same size, large, no right angles, cut off at the top." Which of these characteristics are relevant?
*Monday, March 16, 2015 at 6:49pm*

**Math**

Two of the angles are the same. What shapes are possible?
*Monday, March 16, 2015 at 6:49pm*

**Math**

It has two long sides and two short sides. What shapes are possible?
*Monday, March 16, 2015 at 6:49pm*

**Math**

Decide whether each statement is always true, sometimes true, or never true. a. a square is a rectangle b. a right triangle is an isosceles triangle c. an acute triangle is an isosceles triangle d. an isosceles triangle is a right triangle
*Monday, March 16, 2015 at 6:48pm*

**Math**

Decide whether each statement is always true, sometimes true, or never true.
*Monday, March 16, 2015 at 6:48pm*

**Math**

Look around the classroom. What polygons and polygon regions to you see?
*Monday, March 16, 2015 at 6:47pm*

**Math**

A person's heart may beat at 75 beats per minute. How many beats would that translate into a day?
*Monday, March 16, 2015 at 6:47pm*

**Math**

A motorboat went 20 miles on 5/8 gallon of fuel. How far can the motorboat go on a gallon of fuel?
*Monday, March 16, 2015 at 6:46pm*

**math**

An art class is planning to paint a rectangular mural with an area of 60 square ft. It has to be at least 4 ft. but no more than 6 ft. High. How long could the mural be if the length and height have to be whole numbers?
*Monday, March 16, 2015 at 6:37pm*

**Math**

The pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full. What fraction of the tank does Jean still need to fill?
*Monday, March 16, 2015 at 6:25pm*

**math **

The of a loading crew estimated that they could load 8 boxes in 20 minutes at this rate ,how many boxes could they load in one hour ?
*Monday, March 16, 2015 at 6:23pm*

**Math**

Larry mows the same-sized lawns in his neighborhood each weekend during the summer. Part A Each time Larry mows a lawn he uses 1/6 of a gallon of gasoline. If he has 2/3 of a gallon of gasoline, how many lawns can he mow before he needs to buy more gasoline? Show your work. ...
*Monday, March 16, 2015 at 6:19pm*

**math**

scientist is mixing a chemical solution for an experiment solution contains 3/8 of chemical solution 1/6 ounce saline solution what is the unit rate of chemical to saline solution? 3/8 x 1/6 + 3/48 divided by 3 + 1/16 is this right
*Monday, March 16, 2015 at 6:06pm*

**Math**

Theo made the table below to show the number of middle school students who attented the last football game. if this data were displayed in a circle graph, how many degrees would be in the sector representing the 8th grade Grades 6,7,8 # of students in 6th grade: 375 7th grade...
*Monday, March 16, 2015 at 5:40pm*

**math**

The number of students receiving an a on the test was equal to 15% of the total number of students. What would the equation be? I have started it off : s=
*Monday, March 16, 2015 at 5:29pm*

**math**

A plane flying at 200 knots left an airport A( 30° S, 31°E) and flew due North to an airport B( 30° N 31° E) (a) Calculate the distance covered by the plane, in nautical miles (b) After a 15 minutes stop over B, the plane flew west to an airport C(30°N 13&...
*Monday, March 16, 2015 at 4:23pm*

**3 rd grade Math**

If the hexagon represents one whole, what fractions do the trapezoid, the parallelogram, and the triangle represent? explain how you found your answers. can anybody please explain this how to tell to my son.
*Monday, March 16, 2015 at 4:08pm*

**Economics **

The assessed value of Patty's residential property was $200,000 in 2004. In 2006, the assessed value increased to $225,000. The property tax rate in both years was 1.2 percent. Patty earned $60,000 each year. Determine Patty’s property taxes for 2004 by calculating 1....
*Monday, March 16, 2015 at 4:02pm*

**Math **

1. Explain the difference between (-3)^2 and -3^2. 2. Explain the difference between -23 subtracted from 17, and -23-17. I have no idea what to do I am so lost :(
*Monday, March 16, 2015 at 3:57pm*

**math **

A football team gained 4 in one play. In the next play, the team lost 4 yards. What is the team's net yard gain.
*Monday, March 16, 2015 at 3:56pm*

**math**

the level of pool water goes from4.5 feet to 6 feet. what is the percent increase?
*Monday, March 16, 2015 at 3:37pm*

**math**

In the year 2003, the population of a certain district was 1.8 million. Thirty percent of the population was in the age group 15-40 years. In the same year, 120,000 people in the district the Voluntary Counseling and Testing (VCT) contra for an HIV test. If a person was ...
*Monday, March 16, 2015 at 12:55pm*

**Math**

1. What is the value of z so that -9 and 9 are both solutions of x^2+z=103? a) -22 b) 3 c) 22 d) 184 2. What is the value of b in the triangle below? The triangle has one side that is 3b and another that is just b. The area of the triangle is 24in.^2. a) -4 in b) 4 in c) no ...
*Monday, March 16, 2015 at 12:39pm*

**math**

Two towns P and Q are 400 km apart. A bus left for P and Q. It stopped at Q for one hour and then started the return to P. one hour after the departure of the bus from P, a trail also heading for Q left P. the trailer met the returning bus ¾ of the way from P to Q. they...
*Monday, March 16, 2015 at 12:39pm*

**Math**

In a survey of 300 college graduates, 58% reported that they entered a profession closely related to their college major. If 6 of those survey subjects are randomly selected without replacement for a follow-up survey, what is the probability that 3 of them entered a profession...
*Monday, March 16, 2015 at 12:28pm*

**Math**

In a game, you have a 1/27 probability of winning $100 and a 26/27 probability of losing $4. What is your expected value?
*Monday, March 16, 2015 at 12:23pm*

**Math**

1. What is the value of z so that -9 and 9 are both solutions of x^2+z=103? a) -22 b) 3 c) 22 d) 184 2. What is the value of b in the triangle below? The triangle has one side that is 3b and another that is just b. The area of the triangle is 24in.^2. a) -4 in b) 4 in c) no ...
*Monday, March 16, 2015 at 11:41am*

**math**

The organizer of a television show must select five people to participate in the show. The participants will be selected from a list of 24 people who have written in to the show. If the participants are selected randomly, what is the probability that the 5 youngest people will...
*Monday, March 16, 2015 at 11:27am*

**consumer math**

You are paid $7.45/hr at your part-time job. Your deductions are FICA (7.65%), federal tax withholding (10.65%), and state tax withholding (5.7%). Your travel expenses are $5.70 per day worked. You work 12 hours over a 3-day period of time. What is your net income after travel...
*Monday, March 16, 2015 at 10:44am*

**Math**

Is 1/5, 3/8, 4/10, 0.45, and 0.6 in order from least to greatest? I'm still trying to figure this stuff out. :/
*Monday, March 16, 2015 at 9:59am*

**Math Help**

A right triangle has a leg B of length 7 and a hypotenuse of length 11. What is the length of the other leg A? Round to the nearest tenth, if necessary. A. 2.0 B. 8.5 C. 13.0 D. 9.6 Please help, I was gone for this lesson, just need someone to explain how they got the answer.
*Monday, March 16, 2015 at 9:50am*

**math**

Would you guys mind help me to solve this question? : The scale of a map is 1:1000. What are the actual dimensions of a rectangle which appears as 4cm by 3cm on the map? What is the area on the map in cm squared?what is the actual area in meter squared? I would like to see ...
*Monday, March 16, 2015 at 9:47am*

**Math**

A bottle of water costs $1.50. Explain how you would make a graph of four ordered pairs to model the total cost of the water in terms of the number of bottles.
*Monday, March 16, 2015 at 9:36am*

**Math**

An art class is planning to paint a rectangular mural with an area of 60 square feet. It has to be at least 4 feet high but no more than 6 feet high. The length and width have to be whole numbers. List all possible lengths for the mural.
*Monday, March 16, 2015 at 9:27am*

**MATH**

A ship sails north, then turns 45° in a clockwise direction. After another hour, it turns clockwise 90°. In which direction is the ship now sailing? 90 + 45 = 135° west?
*Monday, March 16, 2015 at 9:07am*

**math**

Find the fifth term of a geometric sequence whose fourth term is 8/9 and whose seventh term is 64/243.
*Monday, March 16, 2015 at 8:37am*

**Math**

6 children ate 3 pizzas each.how many pieces did they eat altogether in fraction
*Monday, March 16, 2015 at 4:05am*

**math**

What is the slope of the line y=-1/3x + 3?
*Monday, March 16, 2015 at 2:12am*

**Math**

Q1.Plot three points with first coordinate equal to (-2.8) and join them.
*Monday, March 16, 2015 at 2:01am*

**Math**

A bacteria has a doubling period of 9 days. If there are 2550 bacteria present now, how many will there be in 27 days?
*Monday, March 16, 2015 at 1:54am*

**math**

Q2.Plot three points with second coordinate equal yo (1.3) and join them . Q3.What is the slope of the line y= -1/3x +3 (B)Does it slope upwards? (C) It is steeper than the line y=-1/2x -5? Give reason for your answer. Q4.The equation of the straigth line P is 3y-2x=7 I) Find ...
*Monday, March 16, 2015 at 1:25am*

**math**

Plot three points with first coodinate equal to (-2.8) and join them
*Monday, March 16, 2015 at 1:01am*

**math(5th grade)**

some 1 centimeter squares are arranged in a staircase pattern. The drawing below shows a 3 step staircase. the area is 6 square centimeters and the perimeter is 12 centimeters. what is the area and perimeter of a 10 step staircase? pls help!
*Monday, March 16, 2015 at 12:36am*

**math **

Samantha has five objects weighing 1kg,2kg,3kg,4kg and 5kg. If she weighs them two at a time, how many different weighs can she get?
*Sunday, March 15, 2015 at 11:53pm*

**business math**

marylin was supposed to pay $1460 to Bernice by March 2. Some time later Marylin paid Bernice an equivalent of $1552.84, allowing for a time value of money of 3.9% compounded monthly. When did marylin make the payment?
*Sunday, March 15, 2015 at 11:18pm*

**business math 2**

If the demand equation for a particular commodity is y=28-5x, where y is the unit price in pesos and x is the quantity in units, find the total revenue function and marginal revenue function.
*Sunday, March 15, 2015 at 11:08pm*

**math**

write an equation of a circle with the given center and radius. center (–7 –3) and radius 13
*Sunday, March 15, 2015 at 10:27pm*

**math**

The apocalypse started in NY where 100 people were infected. From there the zombie apocalypse continued to spread. After 17 minutes the number of people infected 200 people.assume that no human have figured out how to kill the zombie or stop it from spreading for the first 24 ...
*Sunday, March 15, 2015 at 10:05pm*

**Math**

Name all the quadrilaterals that have two pairs of parallel sides and all angles congruent
*Sunday, March 15, 2015 at 9:43pm*

**math**

David bought a new car for shilling 800,000. After 5 years, he sold it through a second-hand car dealer. The dealer charged a commission of 4% for the sale of the car. If David received shilling 480,000, calculate the annual rate of depreciation of the car.
*Sunday, March 15, 2015 at 9:21pm*

**math**

In the year 2003, the population of a certain district was 1.8 million. Thirty percent of the population was in the age group 15-40 years. In the same year, 120,000 people in the district the Voluntary Counseling and Testing (VCT) contra for an HIV test. If a person was ...
*Sunday, March 15, 2015 at 9:19pm*

**math**

Two towns P and Q are 400 km apart. A bus left for P and Q. It stopped at Q for one hour and then started the return to P. one hour after the departure of the bus from P, a trail also heading for Q left P. the trailer met the returning bus ¾ of the way from P to Q. they...
*Sunday, March 15, 2015 at 8:51pm*

**MATH**

Suppose that 3% of all adults suffer from diabetes and that 29% of all adults are obese. Suppose also that 2% of all adults both are obese and suffer from diabetes. (a)Find the probability that a randomly chosen adult is obese, given that he or she suffers from diabetes. Round...
*Sunday, March 15, 2015 at 8:49pm*

**math**

A straight line passes through the point (-1,2) and its distance from the origin is 1 unit. Find the equation
*Sunday, March 15, 2015 at 7:58pm*

** math**

18 students in the class play baseball.17 students play basketball. 30 students play either or both. select the venn diagram that shows the number who play baseball and basketball?
*Sunday, March 15, 2015 at 7:49pm*

**math**

How do I write one equations in slope-intercept form, and three other lines in slope-intercept form that are perpendicular to the first line ?? Please Help, Thank you =)
*Sunday, March 15, 2015 at 7:08pm*

**math**

Two cylindrical containers are similar. The larger one has internal cross- section area of 45cm^2 and can hold 0.945 litres of liquid when full. The smaller container has internal cross- section area of 20cm^2. (a) Calculate the capacity of the smaller container. (b) The ...
*Sunday, March 15, 2015 at 7:04pm*

**Math Geometry - Please check my answers!**

There's a line graph with 3 dolphins (it's the same dolphin at different spot of the jump) jumping out of the water and landing (they formed a parabola). The Y-axis represents Height in feet and the X-axis represents Time in Seconds. The points are (10,0), (13,5), (16,...
*Sunday, March 15, 2015 at 6:20pm*

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