Friday

May 29, 2015

May 29, 2015

**math**

the perimeter of a paved area being built at a playground it's going to be 46 meters is the land and went are each a whole number of meters what should the length and width of the area be to cover the greatest possible area draw a picture and make an organized list to solve
*Wednesday, March 18, 2015 at 2:42pm*

**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 ?? for ex. If I pick the equation y=2/3x+4 for the first equation. and for the second line , the slope -2/3x +4 , how about the 3rd and ...
*Wednesday, March 18, 2015 at 2:08pm*

**math**

This is a continuous from my last question 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. On what intervals is the graph of g concave down? Justify your answer. ...
*Wednesday, March 18, 2015 at 2:06pm*

**math**

How do you solve? what is the area if it is 32. times smaller that 3003.014cm?
*Wednesday, March 18, 2015 at 1:45pm*

**math**

Mary invested $3,750 for 42 months at a simple interest rate of 3.85%. How much interest did she earn?
*Wednesday, March 18, 2015 at 1:31pm*

**math**

Berkley has 10 pieces of ribbon that are 2 yards each. She uses 8 pieces that are 3 feet long. How many feet of ribbon does Berkley have?
*Wednesday, March 18, 2015 at 12:13pm*

**Math**

Jane collected 53 dollar notes for the competition of which x are $2 notes and y is $10 notes. The total value of the dollar notes is $394. Form 2 equations in terms of x and y. Solve the equations and hence find the number of $2 notes
*Wednesday, March 18, 2015 at 11:19am*

**Math**

A painter bought some paint for $500. He paid $x for each litre of paint. He accidentally spilt 5 liters of paint and sold the remainder of the psint for $2/litre more than he paid for it. If he made a profit of $40, find the amount he paid for each litre of paint.
*Wednesday, March 18, 2015 at 11:16am*

**Math**

3x^2+5xy-2y^2=0, where y is not the same as 0. Find the possible values of x/y
*Wednesday, March 18, 2015 at 11:13am*

**math**

what is set-up for three dollars less than half of $128. ?
*Wednesday, March 18, 2015 at 10:42am*

**EDUC2120**

Treena is a personable student in Mr. Jordan’s math class. Mr. Jordan can see that Treena is popular with her peers. He regularly sees her conversing animatedly with her friends in the cafeteria and before and after school. She does well in class also. Her homework is ...
*Wednesday, March 18, 2015 at 10:25am*

**math**

25 % of a class of 40 students are girls. When some new girls joined the class, the percentage of girls increased to 40 %. How many new girls are joined the class
*Wednesday, March 18, 2015 at 10:05am*

**Math**

Find the future value of an ordinary annuity that calls for depositing $100 at the end of every 6 months for 15 years into an account that earns 7% interest compounded semiannually. (Round your answer to the nearest cent.)
*Wednesday, March 18, 2015 at 9:42am*

**Math**

The concentration (in milligrams per liter) of an antibiotic in the blood is given by the geometric series A + Aekt + Ae2kt + + Ae(n − 1)kt where A is the number of milligrams in one dose of the antibiotic, n is the number of doses, t is the time between doses, and k is ...
*Wednesday, March 18, 2015 at 9:32am*

**math**

Limx-0 sinx/tanx+tanx.sinx
*Wednesday, March 18, 2015 at 8:41am*

**Math**

An agent receives a monthly salary of 1500 plus a 4% commission on every home sold what amount of monthly sales will he earn at least 5000
*Wednesday, March 18, 2015 at 7:53am*

**Math - 7th grade (repost)**

Can someone please help? I'm given a box and whisker plot that represents the cost, in dollars, of 12 CDs. How can I determine how many CD's cost between $14.60 (Q1 value) and $26 (Q3 value) and how many CD's cost less than $14.60?
*Wednesday, March 18, 2015 at 7:08am*

**Math**

Solve the simultaneous equation 1/p minus 1/q = 3/2 1/p plus 1/q = 4
*Wednesday, March 18, 2015 at 6:36am*

**Math**

y is directly proportional to the cube of x. If x is increased by 50% show that the percentage increase in y is 237.5%
*Wednesday, March 18, 2015 at 6:30am*

**math**

a person's heart may beat at 75 beats per minute. how many beats would that translate into a day?
*Wednesday, March 18, 2015 at 5:03am*

**Math**

Show that log base b [(x + (sqrt x^2-5))/5] is equal to -log base b (x-(sqrt x^2-5))
*Wednesday, March 18, 2015 at 4:08am*

**Math**

If m ≥ n > 1, what is the largest possible value of log base m (m/n) + log base n (n/m)?
*Wednesday, March 18, 2015 at 4:07am*

**math**

Limx-0 sinx/tanxsecx+tanx.sinx
*Wednesday, March 18, 2015 at 2:02am*

**math**

Let f(x) = −3x + 5. For what value of x does function f have the given value? f(x) = −1
*Wednesday, March 18, 2015 at 1:34am*

**math**

Suppose you borrowed $15000 to buy a car at an interest rate 7.2% compounded monthly. What will the monthly payments be on loans of 36, 48 and 60 months if you do not have to put any money down on the financing?
*Wednesday, March 18, 2015 at 1:09am*

**math**

Aisha invests twice the amount invested the previous month. If she invested $26.25 during the 1st month, how much did she invest during the 6th month?
*Wednesday, March 18, 2015 at 12:49am*

**math**

Evaluate using L'Hopital Rule? lim as x approaches x from left (1-x)^(3/x)
*Wednesday, March 18, 2015 at 12:14am*

**math**

in a spin circle are numbers 10, 2, 4,6, 2, 8, what is the probability of spinning a 2 at first spin.
*Wednesday, March 18, 2015 at 12:06am*

**math.**

y=2/5x+c, determine the value of c if the line passes through the point P(-2,-4). answer: c=-16/5 ?
*Tuesday, March 17, 2015 at 11:42pm*

**Math - 7th grade**

I'm given a box and whisker plot that represents the cost, in dollars, of 12 CDs. How can I determine how many CD's cost between $14.60 (Q1 value) and $26 (Q3 value) and how many CD's cost less than $14.60?
*Tuesday, March 17, 2015 at 11:36pm*

**Math**

order of operation (100-7 x 2+3) /10
*Tuesday, March 17, 2015 at 11:25pm*

**Math**

Theo made the table below to show the number of middle school students who attended the last football game. If the data were displayed in a circle graph, how many degrees would be in the sector representing the eigth graders? Grade 6 Number of students in attendance 375. Grade...
*Tuesday, March 17, 2015 at 11:10pm*

**Math**

The circle graph shows data on the suitability of land for farming. Which three categories together account for exactly half of the land? The percetage for Too Shallow is 13% The percentage for Chemical Problems is 25% The percentage for Too Dry is 30% The percentage for ...
*Tuesday, March 17, 2015 at 11:02pm*

**Math**

Explain how you could write 35% as the sum of two benchmark prevents or as a multiple of a percent.
*Tuesday, March 17, 2015 at 10:50pm*

**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 10:45pm*

**Math**

Grade 7 students were surveyed to determine how many hours per day they spent on various activities. The results are shown in the circle graph below. About how many hours per day altogether were spent on watching TV and homework? The percentage for watching TV is 13% The ...
*Tuesday, March 17, 2015 at 10:44pm*

**Math**

a basketball tournament starts with 64 teams. after one loss the team is out. how many games does the team that wins the tournament have to play? 64/2=32 32/2=16 16/2=8 8/2=4 4/2=2 2/2=1 The answer is 6 games. How would I write the number sentence?
*Tuesday, March 17, 2015 at 10:19pm*

**math**

3y-6=20
*Tuesday, March 17, 2015 at 10:12pm*

**Math**

Plane A leaves the airport. One hour later, Plane B leaves the same airport on the same course. It catches up to Plane A in 2.5 hours. The average speed of Plane B is 300km/h faster than Plane A. Find the speed of each plane.
*Tuesday, March 17, 2015 at 10:12pm*

**Math**

The cash in the school canteen contains x quarters and (30-x) dimes. If the total value of the coins is $5.85, how many of each kind of coins are there?
*Tuesday, March 17, 2015 at 10:06pm*

**math**

Evaluate this expression: (30-5) + (-7) this what I did (25) + (-7) is 18.
*Tuesday, March 17, 2015 at 9:52pm*

**math**

Nolan practices the piano for 1 2/5 hours every Saturday and Sunday. How long does he practice each weekend? Express your answer in hours and minutes.
*Tuesday, March 17, 2015 at 9:37pm*

**math**

An 18 ounce box of cereal sells for $2.88. What is the unit cost of the cereal?
*Tuesday, March 17, 2015 at 9:33pm*

**math**

Christina Dwyer is searching for a new job. She lives in Shreveport, Louisiana, and has interviews in Barrow, Alaska; Tucson, Arizona; and Rochester, New York. The cost of one-way flights between these four cities is as follows: Shreveport to Barrow costs $855, Shreveport to ...
*Tuesday, March 17, 2015 at 9:24pm*

**Math**

An object is launched at 9.8 meters per second from a 73.5-meter tall platform. The object's height s (in meters) after t seconds is given by the equation s(t)= -4.9t(-4.9t) - 9.8t = 73.5. When does the object strike the ground? I literally have no idea where to start
*Tuesday, March 17, 2015 at 8:44pm*

**math**

Eric and Frank want to equally share 4/3 feet of rope. What length of rope should each friend get? Explain how to use a drawing to help solve the problem.
*Tuesday, March 17, 2015 at 8:19pm*

**Math**

How do you write 4/9 as a decimal? Thanks for the help.
*Tuesday, March 17, 2015 at 8:00pm*

**math**

The low temperature in one city was -4 degrees F. The low temperature in another city was 8 degrees F. Write an inequality to compare the temperature. HELP!
*Tuesday, March 17, 2015 at 7:57pm*

**math**

The area of a square plot of land is 1156m2. The plot is to be fenced with three strands of wire. What is the length of the wire that is needed? Area = S2 √1156 = S S=34 P = 4s = 136 = 136(3) = 408
*Tuesday, March 17, 2015 at 7:52pm*

**Math**

Q. On Friday night 2,950 people attended the rodeo, and 3,159 people attended Saturday night, if the stadium seats 4,000 people, how many seats were there for the two nights? - A. So do I subtract 3,159 - 4,000 = 951 & add 951 + 3,159 ?
*Tuesday, March 17, 2015 at 7:50pm*

**math**

A tank contained 22.5m^3 of water. More water was poured into the tank at the rate of 1.45m^3 per minutes. The tank was full at the end of 30 minutes. What is the capacity of the tank in tank? =22.5 + 1.45(30) =22.5 +43.5 = 66 = 66 * 1000 = 66000 liters
*Tuesday, March 17, 2015 at 7:48pm*

**math**

David and John shared some money in the ratio 5:2 John received $30 less than David. How much money did John get?
*Tuesday, March 17, 2015 at 7:40pm*

**math**

Kool Klothes has determined that the revenue function for selling x thousand pairs of shorts is R(x) =-5x^2 + 21x. The cost function C(x) = 2x + 10 is the cost of producing the shorts. How many pairs of shorts must the company sell in order to break even
*Tuesday, March 17, 2015 at 7:39pm*

**Math**

A rectangular park has an area of 2_3 square mile. The length of the park is 22_3 the width of the park. What is the width of the park? this is the example of how they want them solving it The width of the room is 5/6 the length of the room. What are the dimensions of Kamal&#...
*Tuesday, March 17, 2015 at 7:38pm*

**Math**

How can you tell which fractions represent a umber that is less than 1% without doing any computation? .02/5, .2/5, 2/5, 2/50, 2/500. I know the numbers less than 1% are .02/5 and 2/500, but how do you know without doing the computation
*Tuesday, March 17, 2015 at 7:01pm*

**math**

For questions 4–5, use the following two ways to display the test scores recieved on Mr. Alexander's math test. Use these displays to solve each problem. Stem | Leaf 6 | 8 9 7 | 0 3 5 8 9 8 | 1 2 2 5 7 8 8 9 9 | 0 2 3 Pie Chart: 80-89= 44.4% 90-99=16.6% 70-79=27.7% 60...
*Tuesday, March 17, 2015 at 6:46pm*

**Math, HELP PLEASE!**

is the sequence 2,3,5,8,12 geometric? please explain why
*Tuesday, March 17, 2015 at 6:21pm*

**C. MATH**

I have tried and tried to get the answer but am still confused; please help, thank you... The “Limited Plan” offers a 15% discount for power usage between 7pm – 9am if most of your usage happens during that time. If not, then you lose your discount and you pay a...
*Tuesday, March 17, 2015 at 6:14pm*

**math**

Q1.Two dozen eggs and a loaf of bread cost K4.82.Half a dozen eggs and two loaves of bread cost K2.29.What is the cost of a loaf of bread?
*Tuesday, March 17, 2015 at 6:14pm*

**math**

Q1.Two dozen eggs and a loaf of bread cost K4.82.Half a dozen eggs and two loaves of bread cost K2.29.Find the cost of a loaf of bread.
*Tuesday, March 17, 2015 at 6:05pm*

**Math (ASAP)**

Solve the following inequalities. 1.) 3x + 2y < 6 2.) 2x^2 + y ≥ 2
*Tuesday, March 17, 2015 at 5:56pm*

**math**

How many square yards of carpeting are needed to cover the floor of a rectangular room that is 21 ft. long and 12 ft. wide?
*Tuesday, March 17, 2015 at 5:39pm*

**Math**

The opposite sides of a square, a rectangle, a parallelogram, and a rhombus are what type of triangle?
*Tuesday, March 17, 2015 at 5:23pm*

**math**

275l=ml
*Tuesday, March 17, 2015 at 5:21pm*

**math**

a rectangle with a length of 60mm and a perimeter of 200mm
*Tuesday, March 17, 2015 at 5:17pm*

**Math**

How can you tell which fractions represent a number that is less than 1% without doing any computation? 0.02/5, 0.2/5, 2/5, 2/50, 2/500
*Tuesday, March 17, 2015 at 4:58pm*

**math**

A woman spent 2/5 of her money. She lost 2/3 of the remaining and then she had $8 left. With how much money did she start?
*Tuesday, March 17, 2015 at 4:57pm*

**Math**

A box of greeting cards contains 7 graduation cards, 4 thank you, 3 blank cards. What is the ratio of blank cards to thank you cards?
*Tuesday, March 17, 2015 at 4:03pm*

**Math**

Directions: Solve the following system of inequalities. 1.) 3x + 2y < 6 x > 0 y > 0 2.) 2x^2 + y ≥ 2 x ≤ 2 y ≤ 1
*Tuesday, March 17, 2015 at 4:00pm*

**math**

Today 4% of employees vat Super Toys were absent,how many employees are there in all?
*Tuesday, March 17, 2015 at 3:55pm*

**Math Help Me Please**

4 Determine which ordered pair is not a solution of y= -5x – 4 A (10, -52) B (7, -39) C (-7, 31) D (8, -44) I don't know how to solve it?
*Tuesday, March 17, 2015 at 3:42pm*

**Math**

The “Limited Plan” offers a 15% discount for power usage between 7pm – 9am if most of your usage happens during that time. If not, then you lose your discount and you pay a 20% premium on the usage outside of that time. The cost per kilowatt hour is $0.05432. ...
*Tuesday, March 17, 2015 at 3:06pm*

** Math Quick Help Please**

Which of the following types of information is not suited for display on a double bar graph? populations of boys and girls at three different schools number of records versus compact discs sold each week during a one month period at The Music Den the weekly interest rate...
*Tuesday, March 17, 2015 at 2:12pm*

**math**

An open cylindrical tank has an internal diameter of 5.6 cm and an internal height of 4 cm. The inside of the tank was painted. What area of the tank in square centimeter, was painted?
*Tuesday, March 17, 2015 at 1:59pm*

**math - slope-intercept**

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 ?? for ex. If I pick the equation y=2/3x+4 for the first equation. and for the second line , the slope -2/3x +4 , how about the 3rd and ...
*Tuesday, March 17, 2015 at 1:58pm*

**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*