Homework Help: Math

Branches of Math

Recent Homework Questions About Math

math
It costs $35 for 5 friends to go it for lunch. How much is the total bill including 8% tax? How much will each person pay if everyone pays an equal amount?
Saturday, April 6, 2013 at 5:18pm

math
The ratio of yellow paint to blue paint is 3 quarts to make the color green to paint my bathroom. I need a total of quarts of yellow paint. How many quarts of blue paints I need?
Saturday, April 6, 2013 at 5:14pm

math
Please help me find the rule input 0 output 2 then input 1 output 4 next input 2 output 6 then input 3 output 8 last input 4 output 10 Thanks
Saturday, April 6, 2013 at 5:05pm

math
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension. No there is no common side (lets say.) Thanks
Saturday, April 6, 2013 at 4:49pm

math
2y = 4/3 simplify
Saturday, April 6, 2013 at 3:52pm

math
Jenny wants to buy cereal that comes in large and small boxes. The 32 ounce box costs $4.16and the 14 oz ox costs $2.38.which box is less expensive per oz?
Saturday, April 6, 2013 at 3:33pm

math
A model of a park was built on scale of 1.5cm to 50m. If the distance between two trees in the park is 150m, what is the distance on the model?
Saturday, April 6, 2013 at 3:25pm

math help
Select the values of x that are solutions to the inequality 0 > x^2 + 5x -2
Saturday, April 6, 2013 at 3:00pm

math
Find the volume of this triangular prism. base 3, width 2, height 4 Type number answer only.
Saturday, April 6, 2013 at 2:59pm

math
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2x^2 + 5x + 7. a) {3.50, –1.00} b) {-2, 5} c) {–2.50, –3.50} d) {–0.29, 0.71}
Saturday, April 6, 2013 at 2:53pm

math help please
Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -2x^2 + 9x + 9. a) {–0.22, 1.00} b) {-2, 9} c) {–4.50, –4.50} d) {–0.84, 5.34}
Saturday, April 6, 2013 at 2:52pm

math
Which of the following conclusions is true about the statement below? x^2 = √x a) The statement is always true. b) The statement is true when x is negative. c) The statement is true when x=0. d) The statement is never true.
Saturday, April 6, 2013 at 2:47pm

Math
Simplify the expression (square root) √45/144 Thanks.
Saturday, April 6, 2013 at 1:45pm

math
There are 3 reds, 4 blues, 6 whites and 5 yellows in a bag. What is the probability that the first two you draw are both red if you do not replace the first one?
Saturday, April 6, 2013 at 1:36pm

Math
The number of red cards in Lyle's trading card collection is directly is proportional to the number of yellow cards. At one point, Lyle's collection consisted of 56 red cards and 224 yellow cards. If r represent the number of red cards, and s represents the number of ...
Saturday, April 6, 2013 at 1:09pm

Annuity math
Calculate the future value of S of an annuity using the following formula: S =R(1+i)^n-1/i) given R=250,i=0.001;n=13 please show the workout thankyou
Saturday, April 6, 2013 at 11:58am

Math
if alpha and beta are the zeroes of the polynomial f(x)=x^2-3x-2 , find a quadratic polynomial whose zeroes are 1/2(alpha)+beta and 1/2(beta)+alpha ? Please... i have no idea !!
Saturday, April 6, 2013 at 11:18am

Calculus (Gr.12) Math
I am not sure how to do this question I know I have to take the derivative but then I am left w/ to unknowns. If a projectile is shot up hill the distance (range) of the landing point up the hill depends on the initial speed of the projectile,v, the angle of inclination, a, ...
Saturday, April 6, 2013 at 10:39am

math
Calculate the future value of S of an annuity using the following formula: S =R(1+i)^n-1/i) given R=250,i=0.001;n=13 please show the workout thankyou
Saturday, April 6, 2013 at 10:37am

Math 112 Please my last chance
Can you use the numbers 1 - 9, along with any math symbols and operations, to arrive at the answer of 100 when the 6 and 9 have a negative sign in front of them? I'm not sure how my teacher wants this to be done
Saturday, April 6, 2013 at 10:23am

College math
I really need to know the answer to this extra credit problem. Please help! A quantity, W, is directly proportional to X and the square of Y and inversely proportional to the cube of Z. W=3 when X=4, Y=2 and Z=4. What is the value of W when X=8, Y=9 and Z=6? Give answer to 3 ...
Saturday, April 6, 2013 at 9:06am

Math
1. If -1/infinity = infinity or -infinity ? 2. If lim x->infinity^- = infinity & lim x->inifinity^+ = -infinity, then lim x->infinity = does not exist. Am i right? If im wrong please tell me the reason why?
Saturday, April 6, 2013 at 3:59am

Math
Given table, X (1+x)^(1/x) -0.5. 4 -0.1 2.8680 -0.01 2.7320 -0.001 2.7196 0.001 2.7169 0.01 2.7048 0.1 2.5937 0 5 2.25 From the table, show that lim x->infinity (1+x)^(1/x)=e. Plz someone show me the step how to show it based on the table. Hope u can read the given table ...
Saturday, April 6, 2013 at 3:46am

Math
A survey about the student government program at a school finds that of 245 students: 218 students like the program 27 students think the program is unnecessary If a circle graph were made from this data, what would the measure of the central angle be for the group that likes ...
Saturday, April 6, 2013 at 1:08am

math
Let 2^a = 5 and 2^b = 3. Using exponent rules, solve the equation in terms of a and b. 0.4^x = 27
Saturday, April 6, 2013 at 1:04am

math
the angle of elevation from point on the ground to the top of a pyramid is 20 degrees 20 degrees the angle elevation from a point 189 feet farther back to the top of the pyramid is 10 degrees 20 degrees. find the height of the pyramid
Saturday, April 6, 2013 at 12:57am

Math Ms. Sue Help plz!
Activity Boys Girls Total Walk 3 6 Bike 5 3 Skateboard 2 1 Total _________________________________________ 3. What percentage of the total students chose skateboarding? (1 point) 10% 20% 30% none of these 4. What percentage of the boys chose walking? (1 point) 30% 45% ...
Saturday, April 6, 2013 at 12:39am

grade 6 honors math
Of 150 sixth graders choosing electives for next year, 50 signed up for theater, 65 signed up for art and 70 signed up for band. Some students did not choose an elective. Represent this information using Venn Diagrams.
Friday, April 5, 2013 at 11:54pm

math
row a;1,2,3,4,5............................rowb;1,2,4,8,16...........................row c;2,4,7,12,21.........................what is the first entry in row c which is greater than 100 is most likely to be ?
Friday, April 5, 2013 at 11:05pm

math
john is the age that sally was 3 years ago,13 year old elissa is 3 years older than sally,how old will john be on his next birthday?
Friday, April 5, 2013 at 11:02pm

math
tom,jack and joe are the fastest runners in the school.if they race one another,without dead heats,how many combinations can they finish in if they occupy the first 3 places ?
Friday, April 5, 2013 at 11:00pm

math
in how many different orders can 4 children be arranged in a line,if john and julie refuse to stand next to one another ?
Friday, April 5, 2013 at 10:55pm

Math
Can you use the numbers 1 - 9, along with any math symbols and operations, to arrive at the answer of 100 when the 6 and 9 have a negative sign in front of them?
Friday, April 5, 2013 at 10:50pm

math
Jose, Paul,and Dan went fishing. It was a good day, and all three of them caught a fish. Dan's fish weighed four times as much as Paul's fish, and Jose's fish weighed half as much as Dan's fish. Altogether, the three fish weighed 21 pounds. How much did each ...
Friday, April 5, 2013 at 10:43pm

math
it takes 7 men 10 days to build a garage.Halfway through building the garage they get some help from 3 people and continue to work at the same rate a)How long will it take to finish of the garage b)How long did it take
Friday, April 5, 2013 at 10:38pm

math
A backery makes loaves of bread for $1.40 and sells them for $1.75 per loaf. What is the percent markup on each loaf based on cost?
Friday, April 5, 2013 at 10:16pm

college math
A quantity, W, is directly proportional to X and the square Y, and inversely proportional to the cube of Z. W=3 when X=4, Y=2 and Z=4. What is the value of W when X=8, Y=9 and Z= 6? Give answer to 3 decimal places. Thanks in advance! I appreciate all the help! :)
Friday, April 5, 2013 at 9:28pm

Discrete Math
For sets A, B, C is a subset of U, prove or disprove (with a counter-example) the following: If A is a subset of B, B is not a subset of C, then A is not a subset of C,
Friday, April 5, 2013 at 8:39pm

math
The square yard you are mowing has an area of 9600 ft^2. What is the side length of the yard? Round your answer to the nearest tenth of a foot if necessary. Please solve and explain
Friday, April 5, 2013 at 8:00pm

Math
Mike had some pieces of wood to build a doghouse. He cut each piece in fourths. Then he had 24 pieces of wood. How many whole pieces of wood did Mike have to start with?
Friday, April 5, 2013 at 6:06pm

Math
Tom has some baseball cards and football cards. He had four times as many football cards than baseball cards. He has 12 football cards. How many baseball cards does Tom have?
Friday, April 5, 2013 at 6:05pm

math
If gasoline costs $0.42 a liter, approximately how much will it cost to fill a 40 gallon tank?
Friday, April 5, 2013 at 5:56pm

math
If Deborah ate five pieces of a pizza that was cut into 16 pieces, what percentage of the pizza did she eat?
Friday, April 5, 2013 at 5:32pm

Math
1. What type of graph does not show the number of times a response was given? (1 point) box-and-whisker plot line plot stem-and-leaf plot bar graph 2. Which of the following types of information is suited for display on a scatter plot? (1 point) relationship between favorite ...
Friday, April 5, 2013 at 5:19pm

Math
A scientist is mixing a chemical solution for an experiment. The solution contains 3/8 ounce of a chemical and 1/6 ounce saline solution. What is the unit rate of chemical to saline solution?
Friday, April 5, 2013 at 4:38pm

math
i am less than a hundred the sum of my digits is seventeen i am an even number
Friday, April 5, 2013 at 4:19pm

MATH
a baseball team has 15 members, 3 of whom always play and bat at the top of the batting order. For the game Sunday, the starting lineup of nine players will be filed out from the remaining members and a batting order will be set. How many possible betting orders can be made?
Friday, April 5, 2013 at 4:01pm

math
PROCESSING CLAIMS. Joe takes x hours on the average to process a claim. whereas Ellen's average is 1 hour longer. a) write a rational function C(x) that gives the number of claims that they process while working for an 8-hour shift. b) Find C(c)
Friday, April 5, 2013 at 3:46pm

Math
I need 120 pieces of wire that are 18 inches long. How much wire should I buy? Thanks!
Friday, April 5, 2013 at 3:34pm

college math
A quantity, W, is directly proportional to x and the square of y and inversely proportional to the cube of z. W-3 when x=4,y=2 and z=4. What is the value of w, when x=5, y=5 and z=4. Give answer to three decimal places. Thanks so much!
Friday, April 5, 2013 at 3:04pm

college math
It takes Mike 8 minutes to walk to the store from his house. The return trip takes 13 minutes because he walks 1mph slower due to the bags he is carrying. How fast did Mike walk on his way to the store? Carry out one decimal place. Thanks in advance!
Friday, April 5, 2013 at 2:34pm

Algebra Binomial Theorem
Hi, can somebody help me with this math problem I am stuck on? How do I use binomial theorem to expand(2x – 5y)^3. I need to show my word so any help you can provide would be greatly appreciated.
Friday, April 5, 2013 at 1:12pm

math
Ricky is 5 years older than Sara. Three years ago he was twice her age. How old is Ricky? Thanks for the help!
Friday, April 5, 2013 at 1:03pm

Math
How do you get the big number on a runaway math puzzle worksheet
Friday, April 5, 2013 at 12:38pm

Math
If the floor plan of a new building is shown the building cost $35.00 a saqure foot to construct you need to obtain insurance for the new building .how much insure?
Friday, April 5, 2013 at 12:25pm

math
Factor the following polynomials. (1 point each) 9. 3x2 – 12 10. 5x3y + 35x2y + 45xy
Friday, April 5, 2013 at 12:14pm

math
a man walks a distance 2 1/2 km in 30 minutes what is his speed in km/hours?
Friday, April 5, 2013 at 12:13pm

math
at what rate of interest a certain sum will be doubled in 8 year?
Friday, April 5, 2013 at 12:10pm

math
in what time a certain sum will become 3 1/4 time at 5%?
Friday, April 5, 2013 at 12:08pm

math
what sum will amount to rs 1116 in 4 years at 6%p.a.?
Friday, April 5, 2013 at 12:05pm

math
1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension. 2) A container company is designing on open-top, square-based, rectangular...
Friday, April 5, 2013 at 11:59am

college math
I posted this problem earlier, but I still can't figure it out. It is for extra credit. I was hoping if someone could please solve it. I would greatly appreciate it. A bourbon that is 51 proof is 25.5% alcohol by vol. while one that is 82 proof is 41% alcohol by vol. How ...
Friday, April 5, 2013 at 11:39am

math
what is 25.515 rounded to the nearest cent?
Friday, April 5, 2013 at 11:30am

Math
please help!!!!Apply newtons method to approximate the x-values of the indicated points of intersection of the 2 graphs. continue the process until 2 successive approximations differ by less than 0.001. (Hint: Let h(x)=f(x)-g(x)) f(x)=x^6 g(x)=cos(x) 1)x= ??? (smaller value) 2...
Friday, April 5, 2013 at 9:16am

MAth
the measurement on one side of a right triangle is found to be 9.5 inches inches, and the angle opposite that side is 27 degrees,45' with a possible error of 15'. (round answers to two decimal places) a) Approximate the percent error in computing the length of the ...
Friday, April 5, 2013 at 9:11am

Math
Please help me with this problem: A bourbon that is 51 proof is 25.5% alcohol by volume while one that is 82 proof is 41% alcohol. How many liters of 51 proof bourbon must be mixed with 1.0 L of 82 proof bourbon to produce a 66 proof bourbon? Give answer to 3 decimal places. ...
Friday, April 5, 2013 at 8:33am

math
Suppose z=a+bi, where a and b are integers and i is the imaginary unit. We are given that |1+iz|=|1−iz| and |z−(13+15i)|<17. Find the largest possible value of a+b.
Friday, April 5, 2013 at 7:53am

math
Let f(x)=2x2+40x+25. Given that f(x) leaves the same remainder when divided by x−a as when divided by x+2a for a positive integer a, what is the value of a?
Friday, April 5, 2013 at 7:52am

math
What is the largest possible integer that can be chosen as one of five distinct positive integers whose average is 10?
Friday, April 5, 2013 at 7:51am

math
Find a positive integer N, such that when N is added to 98, it gives the same result as N multiplied to 98.
Friday, April 5, 2013 at 7:50am

math
The three terms x+12, 3x+5 and 2x+25 are the first three terms of an arithmetic progression. What is the value of x?
Friday, April 5, 2013 at 7:47am

math
n is a digit such that the 5-digit number n878n is divisible by 9. What is the value of n?
Friday, April 5, 2013 at 7:46am

math
Able starts off counting at 13, and counts by 7. What is the 11th number that Able will say?
Friday, April 5, 2013 at 7:45am

Math
I am having trouble finding an article that incorporates research of confidence intervals to market a new product. I will need to Summarize the information and suggest if is it wise to go ahead and market the product. Do you any suggestions on a article I can use?
Friday, April 5, 2013 at 7:43am

Discrete Math
Let n be positive integer greater than 1. We call n prime if the only positive integers that (exactly) divide n are 1 and n itself. For example, the first seven primes are 2, 3, 5, 7, 11, 13 and 17. (We should learn more about primes in Chapter 4.) Use the method of exhaustion...
Friday, April 5, 2013 at 7:41am

Math
I have some white and black marbles in a box. There are 30 white marbles. There are 14 more white marbles than black marbles. How many black marbles do I have?
Friday, April 5, 2013 at 4:49am

math
make out a bill for 4 new car tyres at k54.75 each?
Friday, April 5, 2013 at 2:26am

math
a railway train 100m long is runing at the speed of 50km/hour in what time will it pass pole near the line
Friday, April 5, 2013 at 2:25am

math
a railway train 100 m long is runing at the speed of 50km/hour in what time will it pass pole near the line?
Friday, April 5, 2013 at 2:23am

math
a railway train 100 m long is runing at the speed of 50km/hour in what time will it pass pole near the line?
Friday, April 5, 2013 at 2:22am

Math
Solve 3cosx+1=2secx
Friday, April 5, 2013 at 1:50am

Math
A certain United States flag has a perimeter of 58 feet . The length of the flag is 9 feet longer than the width . What are the dimensions of this flag?
Friday, April 5, 2013 at 1:13am

Math
Justin rides his bike in a rectangular route. He knows the total distance is 6,188 yards and the length of the shorter side of the route is 741 yards. What is the length of the longer side ?
Friday, April 5, 2013 at 1:13am

Math
Henry is a quality control inspector. He is watching the production line for Barb's Raisin Cookie. Henry will reject a cookie with less than 8 raisins. In the past, one out of every 100 cookies had less than 8 raisins. Find the probability that the first cookie Henry ...
Friday, April 5, 2013 at 12:19am

Simple Math
Please explain to me what I need to do . A cable 35 feet long runs from the top of a utility pole to a point on the ground 30 feet from the base of the pole. How tall is the utility pole ?
Friday, April 5, 2013 at 12:05am

Math
Find the APR (true annual interest rate), to the nearest half percent, for the following loan. Amount Financed = $1200 Finance Charge = $90 Number of Monthly Payments = 12
Thursday, April 4, 2013 at 11:42pm

Colelge Math (Fibonacci)
"Start with a pair of rabbits, (one male and one female) born on January 1. Assume that all months are of equal length and that : 1. rabbits begin to produce young two months after their own birth; 2. after reaching the age of two months, each pair produces a mixed pair...
Thursday, April 4, 2013 at 11:14pm

math
Ed has $15,000 invested in stocks paying 8%. How much additional money should he invest in certificates of deposit paying 4% so that the average return on the two investments is 6%?
Thursday, April 4, 2013 at 10:57pm

math
A survey of cat owners showed that 3 our of 16 owners got their cats from animal shelters. Of thee 80 cat owners surveyed, how many did NOT get there cats from shelter?
Thursday, April 4, 2013 at 10:28pm

math
the sum of the lengths of any two sides of a triangle must be greater that the length of the third side. what are the possible valuse of x for this triangle. if the sides are (x+5)cm, and (3x)cm, and 40cm
Thursday, April 4, 2013 at 10:27pm

Math
A catalog company sells two styles of kitchen towels, plain and stiped. In order to have the correct numbers of each style in stock, the purchasing department studied recent orders. These orders showed that the ratio of plain towels to total towels sold was 2:3. They also ...
Thursday, April 4, 2013 at 9:55pm

Math
If There Are 3 Runners On The Track And Runner 1 Has Done 3 1/2 Laps, Runner 2 Has Done 4 3/4 Laps And Runner 3 Has Done 2 1/8 Laps, How Many Laps Have All 3 runners Done Combined?
Thursday, April 4, 2013 at 9:43pm

Math
A garden supply company sells cages for tomatoes. The cages come in either black or silver. To decide how many of each color to stock, the purchaser looks at the sales from last year. He finds that 1/3 of the cages sold were black. Last year the company sold 240 black cages. ...
Thursday, April 4, 2013 at 9:43pm

Math
SCR, Short Constructed Response, What Does S.S.S Stand For ?
Thursday, April 4, 2013 at 9:41pm

Math
When You Add Fractions You Just Add Numerators And Denominators. true Or False
Thursday, April 4, 2013 at 9:36pm

Math
All Even Numbers Are To The Right Of Zero On A Numberline. True Or False
Thursday, April 4, 2013 at 9:36pm

math ugh.
at a small private collage, 9/20 of the students are female. there are 2160 female students, then how much are male?
Thursday, April 4, 2013 at 9:35pm

Math
A drama teacher needs to make 6 costumes for dancers in a play. Each costumes takes one and a half meters of cloth.The cloth is sold only by the yard.What is the best estimate of the number of yards the teacher must buy to make sure she has enough cloth for the six costumes?
Thursday, April 4, 2013 at 9:32pm

Math
For n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x successes. Round your answer to four decimal places n = 10, p = 1/7, x = 3 A. 0.1189 B. 0.1546 C. 0.1308 D. 0.1427
Thursday, April 4, 2013 at 9:32pm

Math
When Multiplying Rational Numbers You Count The Numbers Of Decimal Place Values In The Fact. True Or False
Thursday, April 4, 2013 at 9:31pm

Math
When Adding A Negative Number On A Numberline You Move Left On the Number Line. True Or False
Thursday, April 4, 2013 at 9:30pm

Math
At a banquet, the ratio of hot drinks to cold drinks was 5 to 3. A total of 400 drinks were served. How many were hot?
Thursday, April 4, 2013 at 9:27pm

Math
3 4/5 = 5*3+4/5. True Or False
Thursday, April 4, 2013 at 9:25pm

Math
When Multiplying Fraction You Must Find A Common Denominator. True Or False
Thursday, April 4, 2013 at 9:24pm

Math
- 1/4 Is Greater Than -8
Thursday, April 4, 2013 at 9:23pm

Math
Always Line Up Decimal Points When Adding Rational Numbers. True Or False
Thursday, April 4, 2013 at 9:22pm

Math
A cafeteria manager needs to know how many apples and bananas to place in a cafeteria vending machine. He conducted a survey, and all students who respended chose either an apple or banana as their preferred fruit. The survey results show that 3/4 of the students who responded...
Thursday, April 4, 2013 at 9:21pm

math
how do i find the diameter of a circle c=44
Thursday, April 4, 2013 at 9:20pm

Math
Alicia went on a steamboat ride up the Mississippi River. The boat travels 20 miles per hour in still water. How long will it take her to travel 60 miles upstream if the current of the river is 8 miles per hour?
Thursday, April 4, 2013 at 9:10pm

Math
The Additive Inverse Of 7 Is -7. True Or False
Thursday, April 4, 2013 at 9:09pm

Math
When Subtracting A Negative Number You Move Left On the Number Line. True Or False
Thursday, April 4, 2013 at 8:59pm

Math
A tea company is making a special blend of two teas for aa customer. The ratio of Kenyan tea to Darjeeling tea in the blend is 4 to 5. How much Darjeeling tea is in 90 ounces of the blend?
Thursday, April 4, 2013 at 8:52pm

math
A bourbon that is 51-proof is 25.5% alcohol by volume while one that is 82-proof is 41% alcohol by volume. How many liters of 51 proof bourbon must be mixed with 1.0-L of 82 proof bourbon to produce a 66 proof bourbon? Give answer to three decimal places.
Thursday, April 4, 2013 at 8:38pm

math
4xsquared=32
Thursday, April 4, 2013 at 8:34pm

Math Statistical Concepts for Research
I am having trouble finding an article that incorporates research of confidence intervals to market a new product. I will need to Summarize the information and suggest if is it wise to go ahead and market the product. Do you any suggestions on a article I can use?
Thursday, April 4, 2013 at 8:25pm

Calculus- Vectors
I've come across this math problem and need help on working it out. Ropes 3 m and 5 m in length are fastened to a holiday decoration that is suspended over a town square. The decoration has a mass of 5 kg. The ropes, fastened at different heights, make angles of and with ...
Thursday, April 4, 2013 at 8:20pm

math
nadia can paint a room in 5 hours Nat can paint the same room in 7 hours how long will it take for both of them to finish painting the same room
Thursday, April 4, 2013 at 8:16pm

math
5 seamstresses can make shirts in 3 days so how many can 7 make in 10 days??
Thursday, April 4, 2013 at 8:12pm

Math
13% of what number is 16.25?
Thursday, April 4, 2013 at 8:03pm

Discrete Math
If n is a positive integer and n > 1, prove that (n over 2)+ (n-1 over 2) is a perfect square.
Thursday, April 4, 2013 at 7:55pm

Math
One week, Mrs. Peterson went to her health club on Monday, Wednesday, and Friday. Each day she went to the club, she jogged on the treadmill for 3/5 hour, lifted weights for 1/4 hour, and then cooled down by stretching for 1/4 hour. On Saturday, she rode her bike for 3/4 hour...
Thursday, April 4, 2013 at 7:41pm

Math
Prove by induction : if n < =(2^k) -1 then we can find the number with k guesses
Thursday, April 4, 2013 at 7:35pm

Math
Prove by induction : if n < =(2^k) -1 then we can find the number with k guesses
Thursday, April 4, 2013 at 7:34pm

math
find the circumference of a frisbee that has a diameter of 4 inches?
Thursday, April 4, 2013 at 7:33pm

Math
Mr.Algieri Needs 4 1/2 Yds Of Dirt For A Planting Job. The Gravel Yard Sells A Yard Of Dirt For $ 27.95. How Much Will It Cost Mf. Algieri For The Dirt? If Mr. Algieri Has $ 125.00 To Pay For The Materials, Does He Have Enough Money?
Thursday, April 4, 2013 at 7:30pm

Math ms sue please help
A store is selling a sweater on sale for $17.90. The regular price is $22.95. What percent of the regular price is the sale price?
Thursday, April 4, 2013 at 7:30pm

Discrete Math
If n is a positive integer and n > 1,prove that (n) + (n-1) is a perfect sq (2) ( 2 )
Thursday, April 4, 2013 at 7:21pm

Math
Find the dimensions of a rectangular cover plate if its length is 8 inches longer than its width if its parameter is 60 inches(Hint:P=2L=2W)
Thursday, April 4, 2013 at 7:20pm

Math
4 * (-6)
Thursday, April 4, 2013 at 7:13pm

Math
Write an expression for 5 and m more
Thursday, April 4, 2013 at 7:13pm

math 140
Use differences to find a pattern in the sequence. 1,1,11,36,81,151,251 Assuming the pattern continues, the eight term should be.
Thursday, April 4, 2013 at 7:11pm

math 140
If 5 is added to a number the sum is tripled, the result is 31 more than the number. Find the number.
Thursday, April 4, 2013 at 7:08pm

Math
(-8)*7
Thursday, April 4, 2013 at 7:08pm

Math
(8/8)-(6/8+1/8)=
Thursday, April 4, 2013 at 6:52pm

math
A baseball diamond has 90 ft. between each base. A softball diamond has 60 ft between each base. How many yards longer is the space between bases on a baseball diamond than a softball diamond?
Thursday, April 4, 2013 at 6:47pm

Math
There Is 3/4 Of Class 218 Going To Art And 1/8 Going To Gym. The Rest Of The Class Is Going To Computer Class. What Fraction Of The Class Is Going To Computers ?
Thursday, April 4, 2013 at 6:43pm

math 140
7(3x+9)+(x+3)=11
Thursday, April 4, 2013 at 6:31pm

Math
The advertised size of a pizza is the length of its diameter. What is the area of the curst of a 16-ince pizza?
Thursday, April 4, 2013 at 6:28pm

math 140
4-5z=19
Thursday, April 4, 2013 at 6:12pm

math
Which number makes this inequality true? 5•9<3•m
Thursday, April 4, 2013 at 5:37pm

Math Stem and leaf plots
Stem Leaf 2 9 3 6 6 7 8 9 4 4 5 5 7 9 5 1 4 9 6 1 3 5 Between what numbers are most of the points earned? 6
Thursday, April 4, 2013 at 5:35pm

math
There are 12 girls in one of the fifth grade classes. The number of girls is two-thirds the number of boys, b. The number of boys can be found using the equation 2/3b=12. How many boys are in the class?
Thursday, April 4, 2013 at 5:22pm

math 114
A store mixes Kentucky bluegrass worth $11 per pound and ryegrass worth $14 per pound. The mixture is to sell for $13 per pound. Find out how much of each should be used to make a 588 pound mixture. How many pounds of the Kentucky bluegrass should be in the mixture?
Thursday, April 4, 2013 at 4:13pm

Math
Collision insurance is insurance that safeguards the owner of the vehicle from damages that occur from vandalism, weather, or theft. A. True B. False
Thursday, April 4, 2013 at 3:47pm

Math
A bag holds 2 yellow, 1 green, and 2 red marbles. If you were to draw a marble from the bag 150 times, and replace it after each draw, how many yellow marbles would you expect to draw? (1 point) A:50 B:60 C:30 D:38 I say it's B or A
Thursday, April 4, 2013 at 3:40pm

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