Thursday
May 23, 2013

# Homework Help: Math

Branches of Math

math
You expect to receive \$16,000 three years from today. If the present value of this amount is \$12,701.13, what is the APY? What is the monthly return?
Wednesday, April 3, 2013 at 5:26pm

math
Rachel cut a length of rope 4 1/3 meters into two pieces. The length of one piece of rope is 2 1/2 meters. What is the length of the second piece of rope. Please answer and explain.
Wednesday, April 3, 2013 at 5:23pm

math
why is 1/6 greater than 1/8 but less than 1/3? EXPLAIN
Wednesday, April 3, 2013 at 5:05pm

math x
8. The Chicago Public School system has about 680 schools. About 130 of the schools will be closed. If five schools are chosen at random find the probability that at least 3 of them will be closed.
Wednesday, April 3, 2013 at 4:59pm

math
Danny has 75 marbles in red color and blue color. He found out number of red marbles is 15 less than twice of the blue marbles. What are the numbers of red and blue marbles does danny have?
Wednesday, April 3, 2013 at 4:50pm

math
the dollar card is \$3 per month and 10cents per minute How much would the monthly bill for \$85 minutes be with the dollar card?
Wednesday, April 3, 2013 at 4:37pm

math
What is 3 fracture each fourth...5 fracture each half...3 fracture each third?
Wednesday, April 3, 2013 at 4:30pm

math
32 subjects in a study were recruited by advertisements to participate in a study of attitudes and values toward wine. What assumption are you making about these subjects? (I noticed that the problem does not state it is a SRS.)
Wednesday, April 3, 2013 at 4:23pm

math
Make a table and graph the function: Yards are a function of feet.
Wednesday, April 3, 2013 at 4:21pm

Math
Solve Mentally with conversion to decimals, no calculation of common denominators. Place the following in ascending order(smallest to largest) 1/4 8/9 7/10 9/21 7/16 2/3 2/47 5/6 3/4 3/5 1/13 1/8
Wednesday, April 3, 2013 at 3:57pm

math
The average price of gasoline lately has been hovering lately at \$3.80. What is the standard deviation if the probability that a gallon of gas costs less than \$3.00 is 15%?
Wednesday, April 3, 2013 at 3:52pm

math statistic
The Chicago Public School system has about 680 schools. About 130 of the schools will be closed. If five schools are chosen at random find the probability that at least 3 of them will be closed.
Wednesday, April 3, 2013 at 3:51pm

MATH
An engineering consultant bids on jobs where he can make \$10000 profit. If in a certain month, he has a 20% probability of getting a contract, 30% probability of getting 2 contracts, 40% probability of getting 3 contracts, and 10% probability of getting 4 contracts, what is ...
Wednesday, April 3, 2013 at 3:50pm

math
35% of North Americans do not think that college education is a contributory factor to economic success. A random sample of seven North Americans is selected. Find the probability that: a. Exactly 3 people will agree with that position (taken by the 35% of the population) b. ...
Wednesday, April 3, 2013 at 3:49pm

Math
"Jack has a collection of nickels and quarters. He has a total of 50 coins worth \$10.30. How many of each coin does he have?" I got the answer of 39 quarters and 11 nickels by trial and error. Can someone tell me the correct way to set the problem up? Thank you.
Wednesday, April 3, 2013 at 3:06pm

math
How do I find the sum of 256,14,632, and 25
Wednesday, April 3, 2013 at 2:56pm

math
a recipe call for 8/9 of a cup of granola. you only want to make 1/9 of the recipe. How much granola do you need?
Wednesday, April 3, 2013 at 2:55pm

math
A diagram shows the design of the 12 in quilt (12" x 12") block that a quilter is sewing. What are the dimensions of each triangle in the quilt block? What are the dimensions of each triangle to the nearest tenth of an inch?
Wednesday, April 3, 2013 at 2:33pm

math
Operations with radical expressions: Simplify each quotient. -3/sq rt 2 + sq rt 5
Wednesday, April 3, 2013 at 2:04pm

math
three frinds are sharing 36 cookies . jerry wants 25% of the cokies , gary wants 1/2 of the cookies and terry wants o.75 of the cookies . how many cookies does each person want? can they get what they want ? explain your answer
Wednesday, April 3, 2013 at 1:37pm

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be moving to the ...
Wednesday, April 3, 2013 at 1:11pm

math
The sides of a rectangle are in a ratio. What is the length of the shorter sides of the rectangle if its perimeter is 42 cm?
Wednesday, April 3, 2013 at 1:09pm

Math
A carpenter agrees to work under the conditions that he is to be paid \$5.50 every day he works, but must pay \$6.60 every day he does not work. At the end of 30 days he finds he has paid out as much as he has received. How may days did he work?
Wednesday, April 3, 2013 at 12:50pm

math
if sin^-1>cos^-1 then x belongs to which interval
Wednesday, April 3, 2013 at 12:15pm

math
tan^-1a+tan^-1b+tan^-1c=pi,yhen prove that a+b+c=abc
Wednesday, April 3, 2013 at 12:12pm

math
Two fair dice, one blue and one red, are tossed, and the up face on each die is recorded. Define the following events: E : { The sum of the numbers is even } F : { The numbers are equal } Find the following probabilities: (a) P(E) = (b) P(F) = (c) P(E|F) = Are events E and F ...
Wednesday, April 3, 2013 at 12:03pm

Math
A merchant visited 3 fairs. At the first, he doubled his money and spent \$30; at the second he tripled his money and spent \$54; at the third, he quadrupled his money and spent \$72, and then had \$48 left. How much money had he at the start?
Wednesday, April 3, 2013 at 11:50am

math
(6p + 4q)(-2p + 9q) simplify help
Wednesday, April 3, 2013 at 11:47am

math
(8x^4 - 6x^2) + (2x^2 - 8)(2x^2 + 8) Simplify help
Wednesday, April 3, 2013 at 11:46am

math
(5t^4 + 6t^3 – 3t^2 + 4t - 11) - (-9t^4 – 6t^3 + 5t^2 + 3t + 8) Simplify Help
Wednesday, April 3, 2013 at 11:45am

math
(7b + 6c)(-2b + 10c) Simplify
Wednesday, April 3, 2013 at 11:44am

math
What is the value of t in the solution to this systems of linear equations? 2s – 3t = –1 3s – 4t = 0 a)–5 b)3 c)-7/3 d)4
Wednesday, April 3, 2013 at 11:42am

Math
30 flasks--10 full, 10 half-empty, and 10 entirely empty--are to be divided among 3 sons so that flasks and contents should be shared equally. How may this be done?
Wednesday, April 3, 2013 at 11:30am

Math (Combinatorics)
A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
Wednesday, April 3, 2013 at 11:20am

math
PLEASE HELP!!!(: There are 9 red gum balls, 5 green gum balls, 8 yellow gum balls, and 8 blue gum balls in a machine. Find P(green, then yellow). (1 point) A. 400 over 900 B. 5 over 30 C. 8 over 30 D. 40 over 870
Wednesday, April 3, 2013 at 11:16am

Math
How would I find the confidence level (in %) if I am given the standard deviation, size of the random sample, and confidence interval?
Wednesday, April 3, 2013 at 10:51am

math
Am I missing something here. They way I read this is that the answer is already given 9.5m. or are they after the angle of the ground to guy wire? The guy wire is 13.4m long. It supports a vertical power pole. The wire is fastened to the ground 9,5m from the base of the 8.7m ...
Wednesday, April 3, 2013 at 10:14am

Math
A goat is tethered (tied up) to a stake in the ground with a 5 m rope. The goat can graze to the full length of the rope a full 360 around the stake. How much area does the goat have in which to graze?
Wednesday, April 3, 2013 at 9:57am

Math (Percentage)
In a class of 40 , 12 students failed the exam. What was the passing rate of the said class?
Wednesday, April 3, 2013 at 9:27am

math
Assume that aclass room is arectangular box where the floor is 8metres long and 6metres wide.If the distance from the floor to the ceiling(height of the room)is 3metres,find the diagonal distance between acorner of the room on the floor and the opposite corner on the ceiling.
Wednesday, April 3, 2013 at 7:49am

math (Algebra)
(c+x)squared ----------------- 2y c= -8 x= 10 y= 6
Wednesday, April 3, 2013 at 7:49am

Math (Algebra)
A jar contains x nickels and y quarters only. What percentage of the total number of coins are quarters?
Wednesday, April 3, 2013 at 6:44am

Math
A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
Wednesday, April 3, 2013 at 6:43am

Help!!!! math
An hiking group wanted to travel a long chapter of the Appalachian Trail for 4 days. They planned to hike 6 hours per day and wanted to complete a trail chapter that was 60 miles long. what rate of speed would they have to average to complete the trail chapter as planned?
Wednesday, April 3, 2013 at 4:36am

math
tan^-1(x/√a^2-x^2)=sin^-1(x/a)
Wednesday, April 3, 2013 at 3:41am

math
Flight Path. In this problem you will use a cosine function to model the flight path of a plane that begins its descent from 20000 ft when it is 45 miles from the airport. Find the fuction p(x)= ACos(wx)+B that that gives the altitude in ft when the plane is x miles from the ...
Wednesday, April 3, 2013 at 3:02am

math
7.49plus2.05divide0.50less0.59
Wednesday, April 3, 2013 at 1:56am

Math
If a salesman sold 2 cars in his first month, 8 cars in his second month, and 32 cars in his third month, using the same sequence how many cars would he sell in month 4, month 5, and month 6
Wednesday, April 3, 2013 at 12:59am

Math-Calculus
Consider two ships which are joined by a cable attached to each ship at the water line. Suppose the two ships are 200 metres apart, with the cable stretched tight and attached to a pulley which is anchored halfway between the ships at a depth of 45 metres. If one ship moves ...
Wednesday, April 3, 2013 at 12:28am

Math
I need to verify this equation and I get stuck after trying everything I can think of. Help! cos(4x)=4[sin(x)cos(x)-sin^3(x)cos(x)]
Tuesday, April 2, 2013 at 11:49pm

math 141
Three machines turn out all the products in a factory, with the first machine producing 40% of the products, the second machine 35%, and the third machine 25%. The first machine produces defective products 12% of the time, the second machine 3% of the time and the third ...
Tuesday, April 2, 2013 at 11:20pm

math
George painted his room yesterday. he use 1/8 of the paint in can in the morning and 5/8 of the paint in the afternoon.his much of the did he use?
Tuesday, April 2, 2013 at 11:19pm

math
George painted his room yesterday. he use 1/8 of the paint in can in the morning and 5/8 of the paint in the afternoon.his much of the did he use?
Tuesday, April 2, 2013 at 11:18pm

math
find the solution of the following system of equations x-y=0 x+y=4
Tuesday, April 2, 2013 at 11:14pm

math
Jeremiah made a pitcher of iced tea. Which is most likely the capacity of the pitcher?
Tuesday, April 2, 2013 at 10:47pm

math
Subjects were asked to taste two wine samples in sequence. Both samples given were the same wine although subjects were expecting to taste two different samples. Of the 32 subjects in the study, 22 selected the wine presented first when presented with two identical samples. A...
Tuesday, April 2, 2013 at 10:47pm

math
a) A linear function f(t)=b + mt has a slope of -4 and vertical intercept of 20. Find its equation. b) An exponential function g(t)=Ca^t has a decay factor of 1/4 and an initial value of 20. Find its equation. Plot both functions
Tuesday, April 2, 2013 at 10:44pm

finite math
What is the present value of an ordinary annuity which has payments of \$1100 per year for 19 years at 5% compounded annually.
Tuesday, April 2, 2013 at 10:33pm

math
the length of a photograph is 1 cm less than twice the width. the area is 28 cm squared. find the dimensions of the photograph.
Tuesday, April 2, 2013 at 10:28pm

math
When at rest, two trains have sirens that emit a frequency of 300 Hz. The trains travel toward one another and toward an observer stationed between them. One of the trains moves at 30.0 m/s, and the observer hears a beat frequency of 3.6 beats per second. What is the speed of ...
Tuesday, April 2, 2013 at 10:25pm

Math
Triangle Lmn is similar to triangle xyz. Triangle LMN has a side of 5 and 3. The scale factor of triangle Lmn to triangle xyz is 2:5. What is triangle xyz's length? Helppppp Meeeeeeeeeee!!!
Tuesday, April 2, 2013 at 10:21pm

math
Identify the initial value and growth or decay factor in each of the following exponential functions: a) y= 350 x 5^x b) Q= 25000 x (1/2)^t c) P=(7 x 10^3) x 4^t d) N= 5000 x (9/10)^t
Tuesday, April 2, 2013 at 10:18pm

math
you are looking for a safe place to put 30,000.00 for one yr. Bank A offers 2.46% interest rate continuously. Bank B offers 2.48% quarterly and Bank C offers 2.47% monthly. Find the most effective rate of each to determine which would earn you the most interest at the end of ...
Tuesday, April 2, 2013 at 9:58pm

math
sonya spent 2/5 of her money and then had \$18 left. how much money did she originally have?
Tuesday, April 2, 2013 at 9:53pm

MATH
Jack usually mows his lawn in 3 hours. Marilyn can mow the same yard in 5 hours. How long would it take them to mow the lawn together?
Tuesday, April 2, 2013 at 9:51pm

math
A long distance trucker traveled 300 miles in one direction during a snow strm. The return trip in rainy weather was accomplished at double the speed and took 5 hours less time. What was the speed going?
Tuesday, April 2, 2013 at 9:49pm

math
10cm^3 of a normal specimen of human blood contains 1.2g of hemoglobin. How many grams does 47cm^3 of the same blood contain?
Tuesday, April 2, 2013 at 9:46pm

Math 1 question
Tuesday, April 2, 2013 at 9:37pm

math
T and S share a digital music player that randomly selects songs to play. Together T and S have loaded 3476 songs. T and S want to know if each have loaded a different proportion of songs. When in random-selection mode, 22 of first 30 songs selected were loaded by S. Let p ...
Tuesday, April 2, 2013 at 9:33pm

math
random sample of 9600 students. Multistage design effect similar to an SRS (for those still in school) 46% had at least one parent who was a college graduate. Estimate with 99% confidence the proportion of all students who had at least one parent who was a college grad. b) ...
Tuesday, April 2, 2013 at 9:27pm

Math
A stock opened at 62 1/4 points and closed at 57 5/8 points. Find the change in the stock price 4 10/16
Tuesday, April 2, 2013 at 9:14pm

Math
Need help with one more question. Which best describes a statistical question? a. a question that contains numbers b. a question about numbers c. a question about designing an experiment d. a question about a population or sample. I was thinking it might be D. Thanks...
Tuesday, April 2, 2013 at 9:12pm

math
one gallon of paint will cover 200 squar feet of wall. the room has walls 7.5 feet high. what is the greatest lengh of wall that can be covered by one gallon of paint?
Tuesday, April 2, 2013 at 9:04pm

Math
Need help on the question below. Which of the following questions is best suited for an experiment? a. what conditions do peppers need to grow? b. do peppers grow taller with 10ml of daily watering or with 15ml of daily watering c. what conditions do plants need to grow? d. ...
Tuesday, April 2, 2013 at 9:01pm

Math
What property is this? 4(7+9)=(4x7)+(4x9)
Tuesday, April 2, 2013 at 8:56pm

Math
One half of 9.76
Tuesday, April 2, 2013 at 8:52pm

Math
The sunglasses that Ramon wants to buy are 50% off the original price of 85\$ .How much did he have to pay?
Tuesday, April 2, 2013 at 8:37pm

Math
What is a attribute?
Tuesday, April 2, 2013 at 8:18pm

exponential functions in math
my daughter needs some help studying for a unit test using exponential functions in math
Tuesday, April 2, 2013 at 8:07pm

math
find the ratio of the circumference 44ft to the diameter 14ft of a circle. write answer as a fraction in simplest form
Tuesday, April 2, 2013 at 8:07pm

Math
Paul baby sat for 4 1/5 hours on Friday and 2 1/4 hours on Saturday how many more hours did he baby sit on Friday 1 19/20
Tuesday, April 2, 2013 at 8:00pm

math
in her coin collection, holly has 1/3 more coins than jim has in his collection. if the number of coins in 1/2 of holly's collection is 10 more than the number of coins in 1/3 of jim's collection, how many coins does each have?
Tuesday, April 2, 2013 at 7:49pm

Math 112
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?
Tuesday, April 2, 2013 at 7:48pm

math
Please help 1. 3 x (8 + 5) + 2 2. 9 x (8 / 4 x 5) By the way / means dividing
Tuesday, April 2, 2013 at 7:48pm

Math
Paula invested into two accounts; one pays 5% simple interest and the other 6% simple interest. She invested \$3000 more in the account paying 6% than in the other account 5%. At the the end of the first year, Paula total return was 730. How much did she invest in each account?
Tuesday, April 2, 2013 at 7:48pm

Math
Point A represents what fraction 0 1/8 2/8 3/8 4/8 A 6/8 7/8 1 5/8? Write a symbol > < or = to compare the fractions 3/4___17/20 < Add. Simplify 3 5/8+2 2/3 1 7/24
Tuesday, April 2, 2013 at 7:43pm

Math
Find the mode of the data set 48 52 29 38 29 36 42 29 Charlotte read five books with the following number of pages 185,212,146,165,and 197. What was the mean number of pages in the books 181 Enochs scores on seven tests were 85 68 91 75 82 79 and 93 What was the range 25
Tuesday, April 2, 2013 at 7:41pm

math
in her coin collection, holly has 1/3 more coins than jim has in his collection. if the number of coins in 1/2 of holly's collection is 10 more than the number of coins in 1/3 of jim's collection, how many coins does each have?
Tuesday, April 2, 2013 at 7:22pm

math
find mean median and mode of 10 1 10 15 1 7 10 10 1 6 13
Tuesday, April 2, 2013 at 7:19pm

Math
The basketball team scored 38,48,42, and 38 points in four games. What was the average points scored 41 Find the median of the data set 59 64 42 51 55 55 The noon temperature for last four days were 62 58 70 and 66. What was the range and mean range is 12 mean is 64
Tuesday, April 2, 2013 at 7:03pm

Math
Coach Hank has two children. Her daughter is twice as old as her son. The sum of their ages is 15. How old is her son? 5
Tuesday, April 2, 2013 at 7:02pm

Math
16.Four students are in line to perform in the talent show. Sally is ahead of Kevin. Marcus is behind Kevin. Sally is behind Jenny. Who is first in line Jenny
Tuesday, April 2, 2013 at 6:59pm

Math
1A piece of fabric 3/10 of a meter long was but from a bolt that held 9/10 of a meter of fabric.How much fabric was left on the bolt? Express your answer in simplest terms 7/10 2Add.Simplify 5 3/16+2 7/16 7 5/8 3Subtract.Simplify 5-2 1/2 I dont know how to do it 4.Hope is ...
Tuesday, April 2, 2013 at 6:42pm

MATH!!
Andy, Barbara and Chrisy play a game. Their probabilities of winning are 1/2, 1/3, and 1/6 respectively. What is the probability that each wins exatly one of the first three games played? Express your answer as a common fraction.
Tuesday, April 2, 2013 at 6:42pm

math
What is the value of u in the following system of linear equations? 4u + 3v = –1 3u + 2v = 1 a) 5 b)-11/2 C)-7 d)19/3
Tuesday, April 2, 2013 at 6:42pm

A 182 cm tall man is digging a hole in the ground. He stops for a moment and says: "I am done with one quarter of the hole. When I finish the job the top of my head is going to be three times as far under the ground as far it is above the ground now." How deep is the...
Tuesday, April 2, 2013 at 6:37pm

Math
1.During the last 5 shifts, Gary delivered 9,8,14,17, and 12 pizzas. What is the mean number of pizzas delivered during a shift? 12 2.Stephie's science experiment produced the following results:183,204,179,191,186.What is the range? 26 3.What is the mode of the city league...
Tuesday, April 2, 2013 at 6:28pm

Math HELP!!!
The booster club sold tickets to a high school basketball game. They sold 700 student tickets and 500 general admission tickets, and raised a total of \$5000. The combined cost of one student ticket and one general admission ticket was \$8. The equations and graph below can be ...
Tuesday, April 2, 2013 at 6:26pm

math
Between which two consecutive integers is the value of this irrational number? square root of 117? A. 8 and 9 B. 10 and 11 C. 14 and 15 D. 20 and 21
Tuesday, April 2, 2013 at 6:25pm

math
What is the value of t in the solution to this systems of linear equations? 2s – 3t = –1 3s – 4t = 0 a)–5 b)3 c)-7/3 d)4
Tuesday, April 2, 2013 at 6:22pm

math
Max,Owen,Elise, and Cara went to a school carnival. They each played the dart throw,ring toss,water shoot,and basketball throw. Each student won a different game. CLUES:*Max didn't score any points at the dart throw. * Elise correctly tossed 2 rings, but did not win the ...
Tuesday, April 2, 2013 at 6:20pm

Math
Lou eats 6/8 of a pizza. What fraction of pizza is left over?
Tuesday, April 2, 2013 at 6:20pm

math
How do you find 60% of 20?
Tuesday, April 2, 2013 at 6:18pm

math
Students submitted pictures for the school yearbook. Only 4/5 of the submitted pictures fit in the yearbook. There were 105 pictures that did not fit. Approximately how many total pictures were submitted for the yearbook? A. 105 B. 210 C. 420 D. 500
Tuesday, April 2, 2013 at 6:08pm

math
Emily,Zeke,Harry,& Brook each conducted surveys on the number of books people have in their homes. Then they answered the question below. "MUST ALL MEASURES OF CENTRAL TENDENCY APPEAR AS A NUMBER IN A SET OF DATA COLLECTED? A. Emily says this is always true because all ...
Tuesday, April 2, 2013 at 6:04pm

math
What is the value of t in the solution to this systems of linear equations? 2s – 3t = –1 3s – 4t = 0 a)–5 b)3 c)-7/3 d)4
Tuesday, April 2, 2013 at 6:04pm

math
If Jo is supposed to read one-half of a 100-page book for an English assignment and she has finished 38 pages, what percent of the assignment does she have left to do? Please answer and explain.
Tuesday, April 2, 2013 at 6:04pm

math
What is the value of u in the following system of linear equations? 4u + 3v = –1 3u + 2v = 1 a) 5 b)-11/2 C)-7 d)19/3
Tuesday, April 2, 2013 at 6:03pm

math
Which statement is true? A. All vertical lines have a slope of zero. B. All vertical lines have a slope positive slope. C. All vertical lines have a negative slope. D. All vertical lines have a undefined slope. WHY?
Tuesday, April 2, 2013 at 5:53pm

math
A box contains 4 red pencils, 3 blue pencils, and 3 yellow pencils. What is the probability that a student randomly selects a blue pencil, keeps it, then a second student randomly selects a yellow pencil? A. 1/10 B. 3/10 C. 6/10 D. 9/10
Tuesday, April 2, 2013 at 5:46pm

math
A lab needs a 20 liters of a 15% acid solution. The lab only has a 10% acid solution and a 30% acid solution. How much of the 10% acid solution will they need to mix with the 30% solution to obtain 20 liters of a 15% solution?
Tuesday, April 2, 2013 at 5:42pm

math
which shape will create tessellation using only translations? A. scalene triangle B. regular hexagon C. equilateral triangle D. isosceles trapezoid
Tuesday, April 2, 2013 at 5:42pm

math
Consider the pair of linear equations below. 4x+6y=12 2x+3y=6 Part A: What is the relationship, if any, between 12 and 6? Part B: Do the two equations have one solution, no solution, or infinitely many solution? Explain. Part C: How can you verify your answers to Part A and B ...
Tuesday, April 2, 2013 at 5:31pm

Math
A computer technician keeps track of his earnings throughout each month. the technician observes that his earnings are a linear function of the number of hours he works during the month. The technician finds that when he works 55 hours during the month, he earn \$2,125 and when...
Tuesday, April 2, 2013 at 5:30pm

Math
What is 120.06 / 24? We started a new unit, dividing decimals and I find it hard to understand.
Tuesday, April 2, 2013 at 5:21pm

8th Math - Probability
A basket contains 5 green lollipops, 12 red lollipops, and 7 orange lollipops. When a lollipop is taken from the basket, it is not replaced. What is P(orange, then orange)? I know the answer. It's 42/552. But HOW do I figure this out? I can do the first p(orange) but if it...
Tuesday, April 2, 2013 at 4:50pm

Math 7
What type of angle is angle x is clock is used to display the time of 7:15. Each minute represents 6 degrees A. Obtuse B. Acute C. Straight D. Right
Tuesday, April 2, 2013 at 4:32pm

MAth
14% of students say they love school. If 8 students are chosen at random, what is the probability that at least one of them loves school?
Tuesday, April 2, 2013 at 3:40pm

MAth
14% of students say they love school. If 8 students are chosen at random, what is the probability that at least one of them loves school?
Tuesday, April 2, 2013 at 3:37pm

math
A rectangular room has an area of 120ft squared. Marge drew a scale drawing of the pool using the scale 1.5cm=2ft. What was the area of the scale drawing? a) 213.3cm2 b) 67.5cm2 c)53.3cm2 d)1.5cm2 I don't think any of the choices match the answer (90cm2)?
Tuesday, April 2, 2013 at 3:35pm

math
find the exact value of [sec(-30 degrees)- cot 120 degrees]/1-cosec^2(45 degrees) Find the exact value of [sin^2(355 degrees) + cos^2 (355 degrees)]/ tan^2 (30 degrees)
Tuesday, April 2, 2013 at 2:56pm

math
Flight Path. In this problem you will use a cosine function to model the flight path of a plane that begins its descent from 20000 ft when it is 45 miles from the airport. Find the fuction p(x)= ACos(wx)+B that that gives the altitude in ft when the plane is x miles from the ...
Tuesday, April 2, 2013 at 2:52pm

math
if i had 7 bags of sand that were 2/3 full and i had 14 pounds of sand how much would it take to fill each one?
Tuesday, April 2, 2013 at 2:10pm

Math
David and Joseph have a total of 328 marbles. Matthew and David have 176 marbles. Joseph has 5 times as many marbles as Matthew. How many marbles does Davis have?
Tuesday, April 2, 2013 at 2:04pm

math
Look at the revenue for videos rented (v) on a given day at two different video rental stores below r = 2v + 10 r = 1.6v + 18 After how many video rentals will the revenues of both stores be equal? a)25 b)45 c)70 d)20
Tuesday, April 2, 2013 at 1:57pm

math
If line 1 passes through (2, -6) and (-2, -2) and line 2 passes through (-3, 2) and (2, 12), where will line 1 and line 2 intersect? a)(-4,0) b)(-2,-3) c)(-6,2) d) (-2,-2)
Tuesday, April 2, 2013 at 1:56pm

math
2y(4y-2) simplify help
Tuesday, April 2, 2013 at 12:38pm

math
A gardener is mowing a 20 yard-by-40 yd rectangular pasture using a diagonal pattern. He mows from one corner of the pasture to the corner diagonally opposite. What is the length of this pass with the mower? Give your answer in simplified form. Please explain to me how to ...
Tuesday, April 2, 2013 at 12:05pm

math
how much is 12 quarters?
Tuesday, April 2, 2013 at 11:45am

Math
A state lottery requires you to choose 4 cards from an ordinary deck: I heart, 1 club, 1 diamond, and 1 spade in that order from the 13 cards in each suit. If all four choices are selected by the lottery, yo win \$5,000. It costs \$1 to play. Find the expected payback.
Tuesday, April 2, 2013 at 11:39am

Math
A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
Tuesday, April 2, 2013 at 11:08am

math
A walking path is shaped like a rectangle with a width 7 times its length "l". What is a simplified expression for the distance between opposite corners of the walking path?
Tuesday, April 2, 2013 at 11:04am

math
A carpenter is building rectangular walls for a room addition. The width of a section of wall is two times the height h. Each section has a brace that connects two opposite corners of the section. What is a simplified expression for the length of a brace?
Tuesday, April 2, 2013 at 11:02am

Math
A newly designed international airport is planning to label its gates. Each gate must be assigned a letter from the alphabet from A to M (13 in all), and a number from 1 to 15. To avoid confusion, any two gates must be assigned a different letter, or a different number (or ...
Tuesday, April 2, 2013 at 10:56am

Math
if kelly gave 1/3 of a pizza to holly and 1/5 to diane how much did she have left
Tuesday, April 2, 2013 at 10:45am

MATH
Below are some sale prices for soda .Which offers the best price ? a. 6 for \$1.75 b.8 for \$1.90 c.12 for \$3.15 d.30 for \$7.50
Tuesday, April 2, 2013 at 10:35am

math
HOW YOU CAN PREPAIR 1M OF SODIUM CHROLIDE IN 250CMCUBE
Tuesday, April 2, 2013 at 10:33am

Math
Algebraic factorization 1) (x+3)^2 - (x+1)^2 2) (x-4)^2-16(x+2)^2 3) 4(x+1)^2 -(2-x)^2
Tuesday, April 2, 2013 at 10:25am

Math algebraic factprization
1) (x+3)^2 - (x+1)^2 2) (x-4)^2 - 16(x+2)^2
Tuesday, April 2, 2013 at 10:23am

math
y1=6+2x x1 y1 -3 ? -2 ? -1 ?
Tuesday, April 2, 2013 at 10:07am

Math
Let f(x)=x2−1. How many distinct real roots are there to f(f(f(x)))=0?
Tuesday, April 2, 2013 at 9:03am

math
Which of the following could NOT represent the intersection of a plane and a triangular prism? A. a triangular prism B.a triangle C. a rectangle D. a point I had D, a point because if you cut a triangle in half you can not get a point out of it. If this is wrong can you ...
Tuesday, April 2, 2013 at 8:43am

Math
If y = sin−1 x, then sin y = x,−π/2 ≤ y ≤ π/2. Therefore, to find y = sin−1(−3/22, we must find an angle y whose sine is -3/2. There are many possible angles with this sine, but the range of y = sin−1 x is restricted to...
Tuesday, April 2, 2013 at 5:35am

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be moving to the ...
Tuesday, April 2, 2013 at 1:30am

math
Flight Path. In this problem you will use a cosine function to model the flight path of a plane that begins its descent from 20000 ft when it is 45 miles from the airport. Find the fuction p(x)= ACos(wx)+B that that gives the altitude in ft when the plane is x miles from the ...
Tuesday, April 2, 2013 at 1:13am

Math
Jeremy and Cynthia leave at the same time to travel 75 miles to an area. Jeremy drives 15 miles in 12 minutes. Cynthia drives 26 minutes in 20 minutes. If they continue at the same rates, who will arrive at the area first?
Tuesday, April 2, 2013 at 12:10am

math
Inflation is currently causing the cost of items to increase by about 2.5% per year. In 2009 a litre of gasoline costs approximately \$0.90. What will it cost to fill a 60 litre gas tank 10 years from now. Round your answer to the nearest dollar. Name at least one thing other ...
Tuesday, April 2, 2013 at 12:04am

math
1) An antique dresser was purchased for \$7500 in 2005. The dresser increases in value by 9% per year. Find the value of the dresser in 2025. 2) a) Find the slope of the secant to the curve f(x) = 0.25(4)^(x) - 2 between: p1) x=0 and x = 1 p2) x=0 and x=0.5 p3) x=0 and x=0.1 p4...
Tuesday, April 2, 2013 at 12:01am

math
Please simplify and explain to me how to do each of these. Greatly appreciated. x = multiply sign (not a variable) a)((9)^(1/2) (4)^2) / 24 b) (16)(2)^(x+2) The x here is a variable, not multiplication sign) c) (3)^(-8)/ (3)^(-6) (3)^(-5) d) ((4)^(-2) + (2)^(-4))^(-1) Thank ...
Monday, April 1, 2013 at 11:56pm

math
For a rock, paper, scissors experiment, there are 30 tries with a partner. I won 16/30 times. What's the probability of winning between 10 and 16 times inclusively? How do you solve this?
Monday, April 1, 2013 at 11:37pm

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