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August 28, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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Math
5x^4=5x Can you please help
Tuesday, June 3, 2014 at 8:21pm

math
draw a picture showing 4 pencils and a number of pens in which the ratio of pencils to pens is 2:3.
Tuesday, June 3, 2014 at 8:18pm

math
Frank was a jacket that cost $60 ESA $43 what is the fraction of the amount that he that he needs to saved
Tuesday, June 3, 2014 at 8:07pm

math 1 question!!!!!!
Which situation best represents a proportional relationship? (1 point) Kelly sold 2 rings for $3 and 3 rings for $6.<----- Lawrence packed 27 plates in 9 boxes and 81 plates in 27 boxes. Jeff ran 4 miles in 20 minutes and 6 miles in 24 minutes. Francesca placed 8 pencils in...
Tuesday, June 3, 2014 at 7:47pm

math 1 question!!!!!!
Which is equivalent to the expression shown when a > 0 and b > 0? -21a^2b/35ab A. 3a/5 B. -3a/5 C. -3ab/5 D. 3a/5b<---
Tuesday, June 3, 2014 at 7:43pm

math
Direct variation Y is proportional to x. Use the x value & y value to find a linear model that relates y and x. x=5, y=9 X=11, y=1.5
Tuesday, June 3, 2014 at 7:38pm

math 1 question!!!!!!
A fence encloses a rectangular field. The field is 4 meters longer than it is wide. The total length of the fence is 144 meters. What is the area in square meters of the enclosed field? 1192 1296 1292 1440
Tuesday, June 3, 2014 at 7:14pm

math 1 question!!!!!!
Tasha is going on a picnic. The probability that it will be sunny is 2/3. The probability that someone will bring potato salad is 7/9. What is the probability that it will be sunny and that someone will bring potato salad? 1/9 4/27 14/27 6/7<------
Tuesday, June 3, 2014 at 7:10pm

MATH
Slope : 3/2; y-intercept : (0,3)
Tuesday, June 3, 2014 at 7:03pm

MATH Graph
Sketch the graph of line y=1/2x+1
Tuesday, June 3, 2014 at 7:02pm

math
x – 3y = 25 x – 2y = 21 find the x and y values i think x=-13 and y=4 am i right?
Tuesday, June 3, 2014 at 6:55pm

Math
Given a 30 meter x 60 meter garden with a circular fountain with a 5 meter radius, calculate the area of the portion of the garden not occupied by the fountain. 30 x 60 = 1800 3.14 x 25 = 78.25/2=39.125 1800 - 39.125 = 1,760.875 but this is incorrect The answer choices are: A...
Tuesday, June 3, 2014 at 6:18pm

Math
A fence encloses a rectangular field. The field is 4 meters longer than it is wide. The total length of the fence is 144 meters. What is the area in square meters of the enclosed field? 1192 1296 1292<---- 1440
Tuesday, June 3, 2014 at 6:11pm

math
An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will be $425,000. If only natural gas is hit, the income will be $155,000. If nothing is hit, there will be no income. If the probability of hitting oil ...
Tuesday, June 3, 2014 at 5:55pm

math
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We find the heights of 60 people. (You may need to use the standard normal distribution table. Round your answers to the nearest whole number.) How ...
Tuesday, June 3, 2014 at 5:55pm

math
Solve the equations by finding the exact solution. 4 = x − 4
Tuesday, June 3, 2014 at 5:54pm

math -logarithm
Write the equations in logarithmic form. (a) 729 = 93(9 to the 3rd power) (b) 25 = 1/5 −2( 1/5 to the -2 power) a = bc ( c squared)
Tuesday, June 3, 2014 at 5:52pm

math -logarithm
Use the definition of logarithm to simplify each expression. log10 10,000 log10 10 log10 10−4
Tuesday, June 3, 2014 at 5:50pm

math
Decide whether you would use a permutation, a combination, or neither. Next, write the solution using permutation notation or combination notation, if possible, and, finally, answer the question. A club with 34 members is to select five officers (president, vice president, ...
Tuesday, June 3, 2014 at 5:48pm

math
Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.37 x 10−5 (10 to the -5 power) watts/cm2(squared)
Tuesday, June 3, 2014 at 5:47pm

math
Find the monthly payment for the loan. (Round your answer to the nearest cent.) $400 loan for 12 months at 14%
Tuesday, June 3, 2014 at 5:45pm

math
Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,650 with factory and dealer rebates of $5,100 a-Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the nearest cent. b-Find the ...
Tuesday, June 3, 2014 at 5:44pm

Math - Data Management
If we take a sample of 2400 families with five children, a) what is the probability that a family will have exactly 2 girls? b) How many of the families would you expect to have exactly two girls?
Tuesday, June 3, 2014 at 5:34pm

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 125 and a variance of 25. The material is considered defective if the breaking strength is less than 113 pounds. What is the probability that a single, randomly selected piece ...
Tuesday, June 3, 2014 at 5:32pm

Math
list three different ways to write 5^11 as the product of two powers. Explain why all three of your expressions are equal to 5^11
Tuesday, June 3, 2014 at 5:17pm

Math
The ratio of adults to girls to boys on a class field trip was 1:4:5. If the trip included 6 more boys than girls, how many adults were with the group? A. 3 B. 4 C. 6 D. 8 E. 12
Tuesday, June 3, 2014 at 4:20pm

Math
Given the function rule f(x) = x2 - 5x + 1, what is the output of f(-3)? A. 7 B. -5 C. 25 D. 5 I think its 7, can you check please? Thanks!
Tuesday, June 3, 2014 at 4:16pm

Math
If f(x) = x^2 + 9 and g(x) = 24 + 4x, what is the value of f(4) / g(-1)? F. 0.75 G. 0.8 H. 1.2 J. 1.25 K. 1.75
Tuesday, June 3, 2014 at 2:47pm

Math ~ Check Answers ~
Explain how to write a function rule from the table below. Then write a function rule. X: 2 | 4| 6 | And: 1 | 0 | -1 | My Answer: y = -1/2 x But, -1/2 (2) = -1, and y(2) = 1, so we need to add 2 at the start. So, y = 2 - 1/2 x
Tuesday, June 3, 2014 at 2:47pm

Math
Two values of m satisfy the equation |5m - 11 | - 3m = 9. What is the result when you multiply these two values together? F. 2.5 G. 2.75 H. 3.2 J. 3.75 K. 4.25
Tuesday, June 3, 2014 at 1:57pm

math
In the word ' home work what percent of the letter are 'o'
Tuesday, June 3, 2014 at 1:57pm

math
a clock reads 4:00 pm. how many degrees will the minute hand turn in 15 minutes?
Tuesday, June 3, 2014 at 1:54pm

Math
An ice cream shop offers 7 toppings. How many 4-topping ice cream sundaes can you make? A)11 B)28 C)30 <-- My answer D)35
Tuesday, June 3, 2014 at 12:30pm

math
Copy of Consider the charged particle S2- Match the first column with the correct number in the second column. Note: •The same number may be used more than once, if necessary.. •Not every number will be used.
Tuesday, June 3, 2014 at 11:26am

Math
What is Numerical expression of nine increased by ten
Tuesday, June 3, 2014 at 11:02am

Math
Solve Y=-0.02x^2+1.3x+8
Tuesday, June 3, 2014 at 10:54am

math!!
A 9-pack of toy cars costs $8.58. What is the unit price, rounded to the nearest cent?
Tuesday, June 3, 2014 at 10:35am

Math
If the height of an equilateral triangle is 9, what is its area? F. 27 G. 54 H. 81 J. 27 sqrt(3) K. 54 sqrt (3)
Tuesday, June 3, 2014 at 10:03am

math
The sum of two numbers is 45 and the mean proportional betweem them is 18.the numbers are
Tuesday, June 3, 2014 at 12:54am

math HELP!!!!!!
Suppose 10% of the flights arriving at an airport arrive early, 60% arrive on time, and 30% arrive late. Valerie used the random-number table to find the experimental probability that of 5 flights, at least 2 will arrive late. The digit 0 represents flights arriving early. The...
Monday, June 2, 2014 at 11:52pm

Math
A system of inequalities may have no solution, but is there a case where there might only be one solution?
Monday, June 2, 2014 at 11:50pm

math ratio
What is the ratio of parents to students of 4:5. If there are 189 total spectators at the game,how many of them are parents. How many of them are students.
Monday, June 2, 2014 at 10:44pm

Math
What is -39 -(-24) -(-64) How do I do this
Monday, June 2, 2014 at 10:16pm

Algebra - Math HW HELP!
1) It is a five-digit whole number. 2) It is a palindrome. 3) Its tens digit is the cube root of a one-digit number. 4) The product of its hundreds digit and its ones digit is 54. 5) The sum of its hundreds digit and its ones digit is 15. 6) It is divisible by 4. 7) The sum of...
Monday, June 2, 2014 at 10:09pm

math ratio
The ratio of parents to students of 4:5. If there are 189 total spectators to the game,how many of them are parents. How many of them are students.
Monday, June 2, 2014 at 10:06pm

math
the table shows the type and number of pieces of each of the first 20 fruit sales at a store. Predict how many oranges will be sold if a total of 120 pieces of fruit are sold
Monday, June 2, 2014 at 10:05pm

Math algebra
You plan a party and spend $26 on decorations. Each of the tables will have 8 party favors and 8 individual flowers. The flowers cost $2.50 each. Which equation can you use to find the cost of each party favor? *please make an equation*
Monday, June 2, 2014 at 9:36pm

algebra
In a math class, 20 students stayed up late to watch the basketball game and 5 did not. What conclusion can you make?
Monday, June 2, 2014 at 9:23pm

math algebra?
Is 1/3 , 3/4 , 0.2 in order from least to greatest or is 5 1/8 , 5 1/4 , 5 2/3 in order from least to greatest?
Monday, June 2, 2014 at 9:22pm

math
A road has a 10% grade (slope).how much does it rise if it is 2 km long?
Monday, June 2, 2014 at 7:47pm

math
factor completely 81x^4 - 81 possible choices are:: (9x^2 + 9)(9x^2 - 9) OR (9x^2 +9)(3x + 3)(3x - 3)
Monday, June 2, 2014 at 7:41pm

algebra
In a math class, 20 students stayed up late to watch the basketball game and 5 did not. What conclusion can you make?
Monday, June 2, 2014 at 7:11pm

math
The t-shirts for the fundraiser will cost $4.00 to make and there is a $25.00 delivery fee. There are two sized wristbands; a large one that will cost $5.00 to make, and a small one that will cost $3.00 to make. If everyone who orders wristbands orders one small and one large ...
Monday, June 2, 2014 at 7:08pm

math [linear equations]
graph the following equation x-y=5
Monday, June 2, 2014 at 7:04pm

math
solve for c A= -3(a + b - 1/3c)
Monday, June 2, 2014 at 6:51pm

math
a man is in a boat 2 miles from the nearest point on the coast. He is to go to point q, 3 miles down the coast and 1 mile inland. If he can row at 2 mi/h and walk 4 mi/h toward what point on the coast should he row in order to reach point q in the least time?
Monday, June 2, 2014 at 6:41pm

math for me!!!!!!
Linda can run 1 mile in 9 minutes. How many miles can she run in 1 hour?
Monday, June 2, 2014 at 5:48pm

Math Helppp
Scores for men on the verbal portion of the SAT-I test are normally distributed with a mean of 509 and a standard deviation of 112. (a) If 1 man is randomly selected, find the probability that his score is at least 579. (b) If 13 men are randomly selected, find the probability...
Monday, June 2, 2014 at 5:29pm

math
The t-shirts for the fundraiser will cost $4.00 to make and there is a $25.00 delivery fee. There are two sized wristbands; a large one that will cost $5.00 to make, and a small one that will cost $3.00. 1. Write an expression to represent the student council's total cost ...
Monday, June 2, 2014 at 5:26pm

math problem
Find an equation of the line that passes through two points. (0,4) and (7,10)
Monday, June 2, 2014 at 5:15pm

math
Lucy is thinking of a number. The number is greater than two hundred twenty-five. Her number is less than 2 hundreds 2 tens 7 ones. What is Lucy's number?
Monday, June 2, 2014 at 5:14pm

math
simplify ^5 square root x^20
Monday, June 2, 2014 at 5:07pm

math 1 question!!!!!!
Which is the best display for the set of the number of daily 911 calls made during a month, if you want to be able to identify the mode? A. Histogram with intervals of 5<----- B. Histogram with intervals of 3 C. Line plot D. Line graph
Monday, June 2, 2014 at 5:05pm

math HELP!!!!!!
2. Researchers at Jackson Hospital asked 40 randomly selected patients about their sleep habits. Sixteen reported sleeping 8 hours or more each night. If their are 700 patients in the hospital, estimate the number of patients who sleep 8 hours or more each night. A.140 B.160 C...
Monday, June 2, 2014 at 4:49pm

math HELP!!!!!!
A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporter's data is valid or not? A. The data is valid for ...
Monday, June 2, 2014 at 4:46pm

Math
A crate with no lid is shaped like a cube with sides that are 0.8 m long. What is the surface area of the crate?
Monday, June 2, 2014 at 4:41pm

MATH!!!
Writing a linear equation You are given the 2012 value of a product and rate at which the value is expected to change during the next 5 years. Use this information to write a linear equation that gives the dollar V of product in terms of the year. (Let t=12 represent 2012). ...
Monday, June 2, 2014 at 4:39pm

Finite math
Scores for men on the verbal portion of the SAT-I test are normally distributed with a mean of 509 and a standard deviation of 112. (a) If 1 man is randomly selected, find the probability that his score is at least 579. (b) If 13 men are randomly selected, find the probability...
Monday, June 2, 2014 at 3:55pm

math
20. Which of the following rectangles is similar to a rectangle that measures 13 units by 25 units?
Monday, June 2, 2014 at 3:48pm

Math
Twenty tires are tested to see if they last as long as the manufacturer claims they do. Three tires fail the test. Two tires are selected at random without replacement for an inspection. Find the probability that both tires fail the test. Which is greater, the probability that...
Monday, June 2, 2014 at 3:44pm

hEALTH CHECK ANSWERS
1. Dante loves swimming but he wants to improve his arm strength. He researches kayaking and decides to participate in this activity. Which location would provide him the best location for training? A. swimming pool B. ocean with friends C. local river with a trained kayaker...
Monday, June 2, 2014 at 3:19pm

Math
Noreen recently took a job helping people register to vote. The job has a mandatory 10-day period of probation during which her success rate is strictly monitored. On her first day, she registered 30 people. Then, for each of the next 9 days, she registered 4 more people than ...
Monday, June 2, 2014 at 1:48pm

Math
A movie theater sold a total of 390 adult and child tickets on a certain day. The theater sold 2.25 times as many adult tickets as child tickets. Each adult ticket cost $8 and each child ticket cost $3. How much revenue did the theater generate in ticket sales that day?
Monday, June 2, 2014 at 1:35pm

math
Fill up the grid with the help of clues given below-
Monday, June 2, 2014 at 1:35pm

Math
When you use a coupon for 15 percent off the original price of a headset, you pay $27. What is the original price of the headset? Please use an equation.
Monday, June 2, 2014 at 12:14pm

Math
If the number of rabbits triple every year, how many rabbits will there be after 6 years if you start off with 2? This is what I have so far: (2x3)^6 I got 46,656 for my answer but it doesn't seem like a realistic answer for the question
Monday, June 2, 2014 at 11:46am

Math
A bag contains the two tiles shown. One tile is drawn at random from the bag. The tile is returned to the bag and again a tile is drawn from the bag. What is the sample space for this experiment? A. {L, M} B. {LL, LM, MM} C. {LL, LM, ML, MM} D. {L}
Monday, June 2, 2014 at 11:05am

Math
Writing a Linear Equation You are given the 2012 value of a product and the rate at which the value is expected to change during the next 5 years. Use this information to write a linear equation that gives the dollar value V of the product in terms of the year. (Let t=12 ...
Monday, June 2, 2014 at 10:27am

math
fifteen less than four times seven
Monday, June 2, 2014 at 7:17am

Algebra Math
Please put this into an equation problem= Chuck has 8.25 gigabytes on his hard drive. Chuck wants to load 3 movies in the drive that take up 3.6,2.8, and 4.1 gigabytes each. To make room for the movies, Chuck plans to delete a 2.3 gigabyte movie. Does Chuck have enough space ...
Monday, June 2, 2014 at 6:51am

algebra math
Equation problem for - the ratings for the tv show I Want to Be a Rockstar dropped a total of 9 points in 6 weeks. What national number represents the average change in points per week?
Monday, June 2, 2014 at 6:36am

Math
An aircraft which is maintaining a constant altitude of 1000 meters is travelling directly away from an observer. At a particular instant the sngle of elevation is 52 degrees and 12 seconds later the angle of elevation is 16 degrees. Find the distance travelled in this time. (...
Monday, June 2, 2014 at 3:39am

Math
what is the percent grade of a hill that rises to an elevation of 1500 m with a run of 16 km?
Monday, June 2, 2014 at 12:59am

Math
What is the slope of a line that goes through the points (4, 8) and (15, 23)?
Monday, June 2, 2014 at 12:58am

math
Edward is buying a pair of shoes. The shoes originally cost $45. If the shirt is marked down 30% what is the new price of he shirt?
Monday, June 2, 2014 at 12:06am

helppppp math helppp!
the fernrod motorcycle company invested 250,000 at 4.5% compounded monthly to be used for the expansion of their manufacturing facilities. how much money will be aviable for the project 3.5 years?
Sunday, June 1, 2014 at 11:34pm

algebra
In a math competition, contestants recieve 8+ points for every correct answer and -5 for every incorrect answer. Boris has 23 correct answers and 5 incorrect answers; bridget has 32 correct answers and 19 incorrect. Who has the higher score?
Sunday, June 1, 2014 at 10:56pm

algebra math!
Equation problem for - the ratings for the tv show I Want to Be a Rockstar dropped a total of 9 points in 6 weeks. What national number represents the average change in points per week?
Sunday, June 1, 2014 at 10:53pm

Math
Hannah made 0.7 of her free throw in a basketball game,abra made 9/10 of her free throws,dena made 3/4 of her free throws,who was the best shooter and explain why you say so
Sunday, June 1, 2014 at 10:50pm

math 221 intro to algebra
When looking at the example of the slideshow, Equivalent Fractions, which is located in the media section of Chapter 1, the presenter divides out the common factor of _____. (Points : 1)
Sunday, June 1, 2014 at 9:12pm

Math
Hi could you please solve this as quick as possible, thanks. A tree 34 m high cast a shadow 12 m long. The angle of the inclination of the sun is closest to: A 70 B 21 C 69 D 19 E 79 Thanks
Sunday, June 1, 2014 at 8:43pm

Math
Please write an equation for the following problem: a seagull is gliding 74 1/2 feet above the surface of water. It then dives 80 feet to catch a fish. How many feet below the surface of the water does the seagull dive?
Sunday, June 1, 2014 at 8:28pm

Math
Prove that cosec 60 degrees cot 30 degrees tan 60 degrees=2secsquared 45degrees cos 30 degree
Sunday, June 1, 2014 at 7:18pm

algebra2/ Trigonometry
A bag contains 24 green marbles, 22 blue marbles, 14 yellow marbles, and 12 red marbles. Suppose you pick one marble at random. What is each probability? A. P(yellow) B. P( not blue) C. P( green or red) Tip: High School Math
Sunday, June 1, 2014 at 7:07pm

MATH HELP!!!!
A searchlight located 200 meters from a weather office is shined directly overhead. If the angle of elevation to the spot of light on the clouds is 35°, how high is the cloud ceiling? Round to the nearest hundredth.
Sunday, June 1, 2014 at 5:29pm

Math
Let A be an event with probability P(A). If E[(IA) ^36217] = Var[2(IA + 36217)]. Find P(A)
Sunday, June 1, 2014 at 4:13pm

math
Carousel Toys has Romper Buckaroos, wooden rocking horses for toddlers, on a 30% markdown sale for $72.09. What was the original price before they were marked down? Round to the nearest cent. $
Sunday, June 1, 2014 at 2:41pm

Math
A cube has a surface area of 24 ft2. What is the length of one edge of the cube? Show Work Please.
Sunday, June 1, 2014 at 2:39pm

Math
A monument consists of two cubical blocks of granite, the smaller resting on the larger. The total height of the monument is 5 feet, and the area of the exposed surface is 61 square feet. Find the dimensions of the blocks. Help please>.< Thank you in advance!
Sunday, June 1, 2014 at 2:02pm

Math
There are 52 coins that consists of pennies, dimes, and quarters. Two stacks have the same number of coins and the third stack has twice as much. The coins equal to $5.98. How many pennies, dimes, and quarters are there? I already found out that two stacks have 13 coins and ...
Sunday, June 1, 2014 at 1:03pm

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