Monday
April 27, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
What is 23 - 4/6 =? Please show all the work.
Tuesday, March 10, 2015 at 1:21pm

Math questions
Please Help me! What is 8 3/4 - 5 5/6 =?
Tuesday, March 10, 2015 at 1:18pm

math
Anais bought 4 1/2 yards of ribbon. She had 3 feet 8 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the curtains? Anais used _____ inches of ribbon.
Tuesday, March 10, 2015 at 1:09pm

math
If a boat uses 24 GALLONS OF GAS TO GO 69 MILES, HOW MANY MILES CAN THE boat travel on 96 gallons of gas
Tuesday, March 10, 2015 at 11:37am

math
If a boat uses 21 GALLONS OF GAS TO GO 80 MILES, HOW MANY MILES CAN THE boat travel on 105 gallons of gas
Tuesday, March 10, 2015 at 11:35am

Math
18 students in a class play baseball. 17 students in the class play basketball. 30 students in the class play either or both sports. Select the vend diagram that shows the number of students who play basketball and baseball. A. Baseball 13 (5) 12 basketball B. Baseball 13 (6) ...
Tuesday, March 10, 2015 at 11:25am

Math help please!!!
Make a box and whisker plot of the data. 13,13,20,21,21,22,24,27. I know the median is 21. The 3Q is 23 Min is 4 and the max is 27. But I can't figure what number is the Q1 because I don't know what number comes between 13 and 20. Is it 15 or 16.5? Please help me ...
Tuesday, March 10, 2015 at 11:11am

MATH
In ΔHIJ, the measure of ∠J=90°, the measure of ∠I=64°, and HI = 5.4 feet. Find the length of JH to the nearest foot.
Tuesday, March 10, 2015 at 11:04am

math
maria throws a ball straight up with an initial velocity of 10m/s what is its velocity at the highest point?
Tuesday, March 10, 2015 at 10:24am

math
If Benjamin drove at a constant rate, how many milesper hour did he drive?
Tuesday, March 10, 2015 at 10:18am

Math
Write out the partial fraction decomposition of the following rational expression. 1.) 3x^2-7x-2/x^3-x 2.) x^3-x+3/x^2+x-2
Tuesday, March 10, 2015 at 9:47am

math
a student in Greece discovers a poetry bowl that contains 28% of its original amount of c-14
Tuesday, March 10, 2015 at 9:37am

math
Evaluate (2sinx)(3sinx) (6cosx)(cosx)
Tuesday, March 10, 2015 at 8:29am

math
A cube with length 4cm is divided into 8 identical cubes.How much greater is the combined surface area of the 8 smaller cubes than the surface area of the original cube?
Tuesday, March 10, 2015 at 8:25am

math
Hence or otherwise calculte the value of 2 to the power 2010 plus 2 to the power 2012 plus 10 divide by 2 to the power 2009 plus 1
Tuesday, March 10, 2015 at 7:07am

math
Marcus is doing a science experiment in which he measures the rate at which bacteria multiply. Every 15 seconds the bacteria double in number. If there are 10 bacteria now, how many will there be in 2 minutes?
Tuesday, March 10, 2015 at 4:24am

math
how many ways can you choose 3 flavors of yogurt out of five flavors of yogurt
Tuesday, March 10, 2015 at 12:48am

Please Check My Math Answers. Thanks!
Can someone please be kind enough to check my answers? Thanks! :) I put stars by my answers. 1. Calculate the slant height for the given cone. Round to the nearest tenth. Diameter= 8cm Height= 9cm a. 10.2 cm b. 11.4 cm c. 9.8 cm *** d. 12.0 cm 2. Calculate the slant height for...
Tuesday, March 10, 2015 at 12:44am

Math
Chris ate 1/8 of a banana cream pie with a 14 inch diameter. What is the area of the remaining portion of the pie?
Tuesday, March 10, 2015 at 12:22am

math
The numbers 7, 8, 9, and 11 are written on separate pieces of paper and put into a hat. Two pieces of paper are drawn at the same time and the product of the numbers is recorded. Find the sample space.
Monday, March 9, 2015 at 11:34pm

Math
Show three ways to make 0.60 without using pennies
Monday, March 9, 2015 at 10:30pm

MATH
HOW TO DO DECIMALS
Monday, March 9, 2015 at 10:29pm

math
In each of the following, relationships among marked angles are given below the figure. Find the measures of the marked angles. b. m(∠AOB ) is 30° less than 2m (∠BOC ) c. m(∠AOB ) – m(∠BOC ) = 50
Monday, March 9, 2015 at 10:21pm

MATH!!!!! NEED HELP NOW !!!!
John rolled a standard number cube 20 times. The cube landed on the number 3 six times. What is the experimental probability that John will roll a number 3 the next time he rolls the number cube? * 3/5 2/5 3/10 7/10 There are 12 girls and 8 boys in Mrs. Laterrade's LL. ...
Monday, March 9, 2015 at 10:08pm

math
For which pair of functions f(x) and g(x) below will the lim f(x)/g(x)equal 0 x-infinity f(x) e^x; g(x) = x^3 f(x) x^5; g(x) = e^x f(x) x^3; g(x) = ln(x) f(x) x^negative 2; g(x) = e^negative x
Monday, March 9, 2015 at 9:40pm

Math
Liang wants to form a chess club. His principal says that he can do that if Liang can find six players, including him. How would you conduct a simulated model that estimates the probability that Liang will find at least five other players to join the club if he asks eight ...
Monday, March 9, 2015 at 9:20pm

math
true or false? a fair question makes assumptions about the population??
Monday, March 9, 2015 at 9:19pm

math
There are four pieces of bubble gum left in a quarter machine. Two are red and two are yellow. Chandra puts two quarters in the machine. One piece is for her and one is for her friend, Kay. If the two pieces are the same color, she's happy because they won't have to ...
Monday, March 9, 2015 at 9:09pm

Math
Liang wants to form a chess club. His principal says that he can do that if Liang can find six players, including him. How would you conduct a simulated model that estimates the probability that Liang will find at least five other players to join the club if he asks eight ...
Monday, March 9, 2015 at 9:08pm

math
find the weight of lead pipe 3.5 m long the ext . diameter of the pipe is 2.4 cm and thickness of the pipe is 2 mm given 1 cm of lead weighs 10g
Monday, March 9, 2015 at 9:02pm

math
Chester has a ribbon that is 2 meters long. He wants to cut it into 5 equal pieces. How many centimeters long will each piece be?
Monday, March 9, 2015 at 8:45pm

MATH!!! NEED HELP FAST!!!
which of the following types of information is NOT suited for display on a double bar graph? A. populations of boys and girls at three different schools B. number of records versus compact discs sold each week during a one month period at music den C. the weekly interest rate ...
Monday, March 9, 2015 at 8:40pm

math
what is the mean absolute deviation of the data set 2,2,5 A.0 B.2/3 C.4/3 D.1/3
Monday, March 9, 2015 at 8:35pm

math
6/(v-5)(v+2) if the rational expression is defined for all real numbers
Monday, March 9, 2015 at 8:30pm

Math
7k divided by 3=21 Can you please show me the work? I know that k=9 but I don't know how to show the work.
Monday, March 9, 2015 at 8:02pm

MATH
if bar of soap is 40 mm x 25 mm x 2 mm and one cubic millimeter of gold weighs about 0.0005 ounce. Find the volume in cubic millimeters and the weight in ounces of this bar of soap
Monday, March 9, 2015 at 7:57pm

Math
Dear Ms. Sue, Thank you for helping me very much. I was a little confused on your response to your answer posted at 7:23. Would my answer be 18 instead of 12? Thank you!
Monday, March 9, 2015 at 7:47pm

Math
using a circle graph of 1/3 percussion, 2/5 brass, 4/15 woodwind and also a circle graph of 1/3 woodwind, 1/6 percussion, 1/2 brass. Both bands combine as one band. A. What fraction of the band members will play brass instruments? B. what fraction of band members will play a ...
Monday, March 9, 2015 at 7:38pm

Math
You have a rectangular yard that has perimeter of 72 meters. The current area is between 300 and 350. What are the dimensions of your current fenced in space
Monday, March 9, 2015 at 7:37pm

math
3(m-1)=m+9
Monday, March 9, 2015 at 7:35pm

Math
Write the word sentence as an equation. The product of a number m and 2 is 8 2m=8 6 less than a number t is 7 t-6=7 A number m increased by 5 is 7 ? 8 is the quotient of a number g and 3 ?
Monday, March 9, 2015 at 7:22pm

Math
using a circle graph with 1/3 percussion, 2/5 brass, 4/15 woodwind. There are 30 musicians in the band. How many of them play bass instruments? I think I have to multiply 30 times 2/5 and in simplest form my answer would be 12. Is this correct?
Monday, March 9, 2015 at 7:19pm

math
air pressure decreases during a storm. the difference between the normal air pressure n and the air pressure during the 1935 florida keys hurricane wasd greater than 121 millibars. write and solve the inequality to find the normal airpressure in the florida keys before the ...
Monday, March 9, 2015 at 7:17pm

Math
working with a circle graph divided up into 1/3 woodwind, 1/6 percussion, and 1/2 brass. The marching band has three percussion musicians. How many musicians altogether are in the band? I think I have to add all of the fractions together and my answer is in simplest form so it...
Monday, March 9, 2015 at 7:11pm

Math help please
A painter used 1 1/2 gallons of paint to paint 3/4 of a room. At this same rate, how many gallons will it take to paint the whole room?
Monday, March 9, 2015 at 7:10pm

Math please help
A recipe for 48 biscuits uses 2 2/3 cups of biscuit mix. How many biscuits are made from each cup of biscuit mix?
Monday, March 9, 2015 at 6:51pm

Math
the air pressure of hurricane katrina at landfall was greater than 17 millibars plus the air pressure p before landfall. write and solve an inequality to find the air pressure of the storm before landfall i think the answer is l>17 millibars+p
Monday, March 9, 2015 at 6:42pm

Math
air pressure decreases during a storm. the difference between the normal air pressure n and the air pressure during the 1935 florida keys hurricane wasd greater than 121 millibars. write and solve the inequality to find the normal airpressure in the florida keys before the ...
Monday, March 9, 2015 at 6:39pm

Math
write an inequality representing the depth d of the water that must be greaeter than 80degrees farenheit in order for a hurricane to form
Monday, March 9, 2015 at 6:34pm

Math
Write out the partial fraction decomposition of the following rational expression. 3x^2-7x-2/x^3-x
Monday, March 9, 2015 at 6:28pm

math
How many 1-inch cubes are needed to create a cube with a side length of 7 inches?
Monday, March 9, 2015 at 6:27pm

math
you are making a rectangular table. The area of the table should be 10 ft^2. You want the length of the table to be 1 ft shorter than twice its width. What should the dimensions of the table be? This question has to be quadratic equation! I really need to know the answer, ...
Monday, March 9, 2015 at 6:19pm

Math
the air pressure of hurricane katrina at landfall was greater than 17 millibars plus the air pressure p before landfall. write and solve an inequality to find the air pressure of the storm before landfall
Monday, March 9, 2015 at 6:08pm

Math
air pressure decreases during a storm. the difference between the normal air pressure n and the air pressure during the 1935 florida keys hurricane wasd greater than 121 millibars. write and solve the inequality to find the normal airpressure in the florida keys before the ...
Monday, March 9, 2015 at 6:03pm

Math help and check
Which kind of function best models the set of data points (–1, 22), (0, 6), (1, –10), (2, –26), and (3, –42)? linear **** quadratic exponential none of the above 2. Which kind of function best models the set of data points (–3, 18), (–2, 6), (&#...
Monday, March 9, 2015 at 6:03pm

Math
the air needs to be humid up to about 18,000 ft for a hurricane to form. write an inequality to represent this altitude a of the air above the ocean
Monday, March 9, 2015 at 5:59pm

Math
write an inequality representing the temperature t of the ocean water during the formation of the hurricane if the ocean water is above 80 degrees farenheit
Monday, March 9, 2015 at 5:56pm

Math Help Please
If a mother has three bananas, two pears, and two oranges, in how many different ways can she give the fruit to her daughter in one week, one piece of fruit per day? Be sure to say how you could use this with your students and mention any adaptations that may be necessary.
Monday, March 9, 2015 at 5:49pm

Math
7. Which of the following is a true statement? (1 point) It is possible for two rectangles to have the same area, but only if they also have the same perimeter. It is possible for two rectangles to have the same area without having the same perimeter. It is possible for two ...
Monday, March 9, 2015 at 5:48pm

Math, Help
sqrt5-sqrt3/sqrt5+sqrt3
Monday, March 9, 2015 at 5:37pm

Math Please Help
In a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many students do not like banana...
Monday, March 9, 2015 at 5:31pm

math
The area A equals = πr^2 of a circular oil spill changes with the radius. At what rate does the area change with respect to the radius when r equals= 3ft? This is 9pie right? not 6pie?
Monday, March 9, 2015 at 5:21pm

math Functions
The function h(t) = 2 + 50t -1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. A) What is the maximum height reached by the ball (would it be 1.862) B) How long ...
Monday, March 9, 2015 at 5:19pm

math
Scientific notation is most effective when used with _____ a. very small numbers b. very large numbers c. imaginary numbers d. very large and very small numbers D or B
Monday, March 9, 2015 at 5:14pm

Math
in a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many students do not like banana...
Monday, March 9, 2015 at 5:09pm

MATH
Money in a bank account that compounds interest by some percentage acts _______.? A.linearly B.exponentially C.negatively D.like a fraction Is it B?
Monday, March 9, 2015 at 4:59pm

math
Leslie needs 324 inches of fringe to put around the edge of a tablecloth. The fringe comes in lengths of 10 yards. If Leslie buys 1 package of fringe, how many feet of fringe will she have left over?
Monday, March 9, 2015 at 4:45pm

MATH
How can you calculate the square root of 1.8E-5 without a calculator
Monday, March 9, 2015 at 4:45pm

math
The height of a cylinder with a fixed radius of 10 cm is increasing at the rate of 0.5 cm/min. Find the rate of change of the volume of the cylinder (with respect to time) when the height is 30cm.
Monday, March 9, 2015 at 3:55pm

Math
josh says that 2/3 is always the same as 4/6. Meghan says that 2/3 and 4/6 are equivalent fractions, but they could be different amounts. Which student is correct? Explain. Pleaseeeeeeeeeeee help!!!!!!!!!
Monday, March 9, 2015 at 3:55pm

math
The probability that Ryan chooses Spanish is 0.86 and the probability that Riley chooses Spanish is 0.73. State the probability that: a. they both chose Spanish b neither of them choose Spanish c. only one of them chooses Spanish d. at least one of them chooses Spanish
Monday, March 9, 2015 at 3:41pm

math
A boat is travelling south at a rate of 18 km/h. A man walks across the deck from east to west at a rate of 16 km/h. Find the magnitude and direction of his velocity.
Monday, March 9, 2015 at 3:38pm

math
A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = (x^2)h cm^3. Find the rate at which the volume of the box is changing when the edge length of the base is 10 cm, the edge length of the base is ...
Monday, March 9, 2015 at 3:25pm

Math
If the total cost function for producing x lamps is C(x) = 90 + 36x + 0.1x^2 dollars, producing how many units will result in a minimum average cost per unit? PLEASE EXPLAIN YOUR WORK Thank you
Monday, March 9, 2015 at 3:15pm

math
Stem/Leaf --------------- 4 /3, 5 5 /0, 5, 6 6 /2, 2, 4 7 /1, 3 8 /0, 4 Key 4/3=4.3 What was the shortest distance, in miles, that a student ran? A)4 B)4.3 C)43 D)43.5
Monday, March 9, 2015 at 12:28pm

Math
A ship leaves port and sails northwest for 2 hours, and then sails N35degreesE for three hours. If it does not change speed, what direction must the ship sail to return directly to port? How long will this return trip take?
Monday, March 9, 2015 at 12:13pm

Math
A flower planter is to be made from landscape ties that are 4 feet long, four inches high and six inches wide. Each planter is 4 ties high. Describe how to build the planters so that they are square
Monday, March 9, 2015 at 12:10pm

math help needed bad
how do I make a box and whisker plot with the numbers 13,13,20,21,21,22,24,27? I put them all in order but since there is only 8 numbers i do not know how to find the median,the lower quartile,upper quartile the lowest value and the highest value. Please dont yell at me I have...
Monday, March 9, 2015 at 11:46am

Math
f(x)=2x+10 f(3)...?
Monday, March 9, 2015 at 11:32am

math
Mary Jo Prenarie is a office manger with the gross earning of $1600 semimonthly. if her company switches pay schedules from semimonthly to biweekly earning. what is Mary Jo new gross earning
Monday, March 9, 2015 at 11:28am

math
the order of the pole of sin(z)/((z-3)^4 * (z^2 + 3)^2) at z=3.
Monday, March 9, 2015 at 10:54am

math/econs
determine the first derivative of:Y=3+10X+5X2
Monday, March 9, 2015 at 6:20am

math
find the absolute error in measuring 12.25ml of water in a container
Monday, March 9, 2015 at 3:58am

math
a group of 3 friends shared the cost of a tape recorder. if andy, barbara, and donna each paid $12, $30 and $18, respectively, then donna paid what percent of the cost of the tape recorder?
Monday, March 9, 2015 at 12:42am

Math
What factors does X3-X have for all X
Monday, March 9, 2015 at 12:09am

Business Math
Ned’s Sheds purchases building materials from Timbertown Lumber for $3700 with terms of 4/10, 2/15, n/30. The invoice is dated October 17. a) List the time periods, as well as the payment and percent discount for each period. b) On November 1, a partial payment of $2000 ...
Sunday, March 8, 2015 at 8:54pm

Math
The bottom end of a 14 foot loading ramp is 10.7 feet away from the entrance to the building. Find the angle the ramp makes with the ground.
Sunday, March 8, 2015 at 8:49pm

Math
If a ten foot tower casts a thirteen foot shadow on the ground, what is the angle of elevation of the sun?
Sunday, March 8, 2015 at 8:47pm

Math
The cost (in thousands of dollars) of the production of scooters can be representedby x^2 - 10x + 27, where x is the number of scooters produced. What is the minimum number of scooters that can be produced for $6 thousand?
Sunday, March 8, 2015 at 8:40pm

math
Sorry, another question. ** Determine whether parallelogram ABCD is a rhombus, a rectangle, or a square. List all that apply. Explain your reasoning. 1) A(12,0), B(6,-6), C(0,0), D(6,6) I know to do this. I just dont know if it's a rhombus, rectangle, or a square. For AB I...
Sunday, March 8, 2015 at 8:24pm

Math
How do you solve the following question? **QRST is a rectangle. If m<QTR = 2x to the power of 2 - 7 and m<SRT = x to the power of 2 + 18, find m<QTR.
Sunday, March 8, 2015 at 8:19pm

math
a punter kicked the football into the air with an upward velocity of 62 ft/s. Its height h in feet after t seconds is given by the function h= -16t ^2 + 62 t + 2. How long does it take for the ball to hit the ground?
Sunday, March 8, 2015 at 8:14pm

math
(ASAP!!) can somebody tell me the answers to the measurement test on Connexus academy lesson 17 unit 2 measurement test, so I get a good grade.
Sunday, March 8, 2015 at 7:42pm

Math
The surface of the ocean is 33 degrees. Every 3m you go down it gets colder. Sharks can live in temperatures between 6 and 27 degrees. What is the shallowest and deepest waters the Sharks can swim in, in meters?
Sunday, March 8, 2015 at 7:37pm

Math
Use the figure to answer the following questions. figure for questions 1–3 1. Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign2 angle sign3 and angle sign4 angle sign1 and angle sign6 2. If mangle sign1 = 37°, what ...
Sunday, March 8, 2015 at 7:20pm

Math
I have the same problem as Marita. Can someone tell us what equation to use. Horizon has a cell phone plan for $28.00 per month plus $.30 per minute with unlimited anytime network minutes and a free flip phone for new customers. How do I put this in an equation. Sprint has a ...
Sunday, March 8, 2015 at 7:10pm

math
can someone give me the answers to the math lesson 17 measurement unit test? please.
Sunday, March 8, 2015 at 7:04pm

math
a punter kicked the football into the air with an upward velocity of 62 ft/s. Its height h in feet after t seconds is given by the function h= -16t ^2 + 62 t + 2. How long does it take for the ball to hit the ground?
Sunday, March 8, 2015 at 7:00pm

math
estimate the answer to 4/6 + 1/9
Sunday, March 8, 2015 at 6:34pm

Math
a punter kicked the football into the air with an upward velocity of 62 ft/s. its height in feet after t seconds is given by the function h = -16t^2 + 62t +2. What is the maximum height the ball reaches? How long will it take the football to reach the maximum height? How long ...
Sunday, March 8, 2015 at 6:28pm

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