Thursday
May 26, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math
You run a small furniture business. You sign a deal with a customer to deliver up to 500 chairs, the exact number to be determined by the customer later. The price will be $120 per chair up to 400 chairs, and above 400 the price will be reduced by $0.25 per chair (on the whole...
Wednesday, May 4, 2016 by Lucas

math
solve log(2+x)-log(x-3)=log2
Wednesday, May 4, 2016 by sarah

Math
The amount of Jen’s monthly phone bill is normally distributed with a mean of $50 and a standard deviation of $10. Find the 25th percentile. A. About $46.30 B. About $43.30 C. About $43.40 D. about $43.20 Answer : B---43.30
Wednesday, May 4, 2016 by angela

Math
Decide which of the described variables is/are likely to have a normal or near-normal distribution. a) The heights of corn stalks in one row of corn that is half a mile long b) The numbers of viewers of each of the channels from 202 to 550 on Direct TV at 7:00 PM CDT on the ...
Wednesday, May 4, 2016 by angela

Math
If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, use the 68-95-99.7 rule to approximate the percentage of light bulbs having a life between 2000 hours and 3500 hours? A. About 13.5% B. About 50% C. About ...
Wednesday, May 4, 2016 by angela

Math
If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours? A. About 25% B. About 50% C. About 75% D. About 68% Answer B
Wednesday, May 4, 2016 by angela

Math
Write twenty million, five hundred ten thousand in expanded notation using exponents.
Wednesday, May 4, 2016 by Elizabeth

Math
The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.25 inches and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.24 inches? A. 79.13% B. 82.46% C. 84.13% D. 84.46% answer:C
Wednesday, May 4, 2016 by angela

Math
The systolic blood pressure of 18-year-old women is normally distributed with a mean of 120 mm Hg and a standard deviation of 12 mm Hg. What percentage of 18-year-old women have a systolic blood pressure that is within 3 standard deviations of the mean on either side? Apply ...
Wednesday, May 4, 2016 by angela

Math
Draw 2 different rectangles with a the perimeter of 8cm. One rectangle has the least area. The other rectangle has the greatest area.
Wednesday, May 4, 2016 by Iya

math
The area of a plot of land is 2496 square meters. A small part of the land is fenced. The ratio of the area of the plot of land to the area that is not fenced is 48:31. What is the area of the land that is not fenced? (5th grade math)
Wednesday, May 4, 2016 by ben

math
I think of a number double it and add 14. The result is 36. What is the number? With working
Wednesday, May 4, 2016 by Doniqua

math
evaluate |-8| + |2| does it mean 8 + 2?
Wednesday, May 4, 2016 by maya

math
evaluate |-8| + |2|
Wednesday, May 4, 2016 by may

math literacy, life science, history,sotho
What careers can I study for, where and how much will it cost????
Wednesday, May 4, 2016 by pitso ROFIWA

Math
he ate 1/8 of the cereal then ate 1/6 of what was left next day. how much did he eat the second day
Wednesday, May 4, 2016 by Nico

Math
space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) (6,1)|(6,2)|(6,3)|(6,5)|(6,5)|(6,6) ...
Wednesday, May 4, 2016 by Till a

math
the volume of a prism is 56cm^3 if the length is 7cm and the width is 4 cm what should be the height?
Wednesday, May 4, 2016 by may

math
write a phrase for y+9.
Wednesday, May 4, 2016 by M&M

Math
3+3=-+2
Wednesday, May 4, 2016 by Bella

Math
Jim wants to give 4 friends 3/5 of pizza how many pizzas will he need
Wednesday, May 4, 2016 by Faith

Math
1. Write the number of permutations in factorial form. Then simplify. How many different ways can you and six of your friends sit in your assigned seats in math class? A.6!; 120 B.6!; 720 C.7!; 2,520 •• D.7!; 5,040 Correct me
Wednesday, May 4, 2016 by Till a

Math
a trading token is in the shape of a trapezoid and has an area of 25 square centimeters and the bases are 3 and 7 centimeters what is the height of the token.
Wednesday, May 4, 2016 by Angleo

math
Is the relation a function? 4 -> 8 7 -> 11 10 -> 14 12 -> 10 A. yes B. no
Wednesday, May 4, 2016 by emily

Math Please Help ASAP
(m^2-m-3)+(m-4) m^2+m-1 m^2+2m-7 m^2-7 m^2-1 please help, is it D?
Wednesday, May 4, 2016 by random person who probly takes the same class as you

math
I think of a number double it and add 14. The result is 36. What is the number? With working
Wednesday, May 4, 2016 by Doniqua

Math
Maria wants to cover the box shown below with paper.Which of the following could be the dimensions of the paper so that Maria has enough to cover the box, including the ends, with a little left over? Shape: Rectangular Prism Length:8 in Width: 2 in Height: 2 in A) 8 in x 4 in ...
Wednesday, May 4, 2016 by Sally

Math
Which best describes best describes your ability to graph inequality
Wednesday, May 4, 2016 by Emma

Math
Write and simplify the polynomial represented by the model. (Model shows: 3 big blank squares, 2 long black rectangles, 3 small blank squares, 1 big black square, 6 small black squares) a. -2x^2 + 2x + 3 b. 2x^2 - 2x - 3 c. 3x^2 - 2x - 3 d. 2x^2 - 2x + 3
Wednesday, May 4, 2016 by jai

Math
The solutions to nx^2 + px + q=0 are 4 and -2/5. What information does this tell you about the graph of f(x)= nx^2 + px +q? If you could answer this for me, that would be great. Thanks in advance :)
Wednesday, May 4, 2016 by Heaven

math
find the area of prism 5 millimeters 6 meters 13 meters not drama scale A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared
Wednesday, May 4, 2016 by Larry vandermark

Math
9 hundreds + 18 tens +13 ones
Wednesday, May 4, 2016 by Shakeya

math
Eight players P:I, P2,. ..... P8 play a knock-out tournament. It is known that whenever the players Pi and Pj play; the player Pi will win if i < j. Assuming that the players are paired at random in each round, what is the probability that the player P4 reaches the final ?
Wednesday, May 4, 2016 by please please please help me solve this urgently

MATH HELP ASAP
For questions 1–4, find the slope of the following graphs. 1. a. 1/2 b. 2 c. 2 d. -1/2 2. a. 3/2 b. 1 c. -1 d. -3/2 3. a. 2/3 b. 3/2 c. 3 d. -2/3 4. a. 0 b. 1 c. -1 d. undefined For questions 5 and 6, find the slope of the line that goes through the following points. 5. x...
Wednesday, May 4, 2016 by Anon

math
If the mean wage of a part time lecturer in a college is 250.00 per month and standard deviation of 25.00.find these probabilities for a randomly selected lecturer,assuming the variable is normally distributed, a.the lecturer earns more than 280.00. b.the lecturer earns more ...
Wednesday, May 4, 2016 by farahan

math
find the area of prism 5 millimeters 6 meters 13 meters not drama scale. A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared help
Wednesday, May 4, 2016 by Larry vandermark

Math
The following data set is the GPAs of the students in a statistics class. 1.93, 1.99, 2.00, 2.04, 2.12, 2.34, 2.55, 2.55, 2.75, 2.75, 2.80, 2.80, 2.85, 3.02, 3.12, 3.22, 3.31, 3.33, 3.45, 3.69 What percentile is a GPA of 2.34? A. About the 6th B. About the 15th C. About the ...
Wednesday, May 4, 2016 by angela

Math
Consider the distribution of mathematics SAT scores of students in honors calculus at a liberal arts college. What would you expect the shape and variation of the distribution to be? A. Symmetric with little variation B. Symmetric with large variation C. Skewed right with ...
Wednesday, May 4, 2016 by angela

math
find the area of prism 5 millimeters 6 meters 13 meters not drama scale A. 48 meters squared B. 346 meters squared C. 780 meters squared D. 195 meters squared help
Wednesday, May 4, 2016 by Larry vandermark

Math please help me i need this answer ASAP
Using the same two number cubes numbered one through six, think about the event of rolling a sum that is greater than 10. This event would consist of all of the outcomes where the sum is greater than 10.
Wednesday, May 4, 2016 by FluttershyK22

Math
Suppose that your income is at the 81st percentile of wage earners in the United States. What percent of wage earners make more than you do? A. 19% B. 81% C. Cannot be calculated from the information given D. None of the above Answer:A
Wednesday, May 4, 2016 by angela

Math
Maria wants to cover the box shown below with paper.Which of the following could be the dimensions of the paper so that Maria has enough to cover the box, including the ends, with a little left over? Shape: Reactangular Prism Length:8 in Width: 2 in Height: 2 in A) 8 in x 4 in...
Wednesday, May 4, 2016 by Sally

math
estimate the radius of a circle with circumference of 272.2 inches use 3.14 for pi round to the nearest tenth. A. 43.3 B.136.1 C.86.7 D.5887.2
Wednesday, May 4, 2016 by Larry vandermark

Math (Mrs. Sue, please help?)
A system of equations is given below: y = 3x + 4 2x + 3y = 10 Which of the following steps could be used to solve by substitution? (4 points) 3x + 4 = 2x + 3y 2x + 3(3x + 4) = 10 2(3x + 4) + 3y = 10 3(y = 3x + 4) (I don't understand this at all and I've read through ...
Wednesday, May 4, 2016 by Reb

math
estimate the radius of a circle with circumference of 272.2 inches use 3.14 for pi round to the nearest tenth A. 43.3 B.136.1 C.86.7 D.5887.2
Wednesday, May 4, 2016 by Larry vandermark

math
a locker combination two nonzero digits and the digits can be repeated the first number is 3. what is the probability that the seconds number
Wednesday, May 4, 2016 by fontiae

MATH
Write an inquality for the situation. Sam scored at least 26 points. A. K > 26 B. K => 26 C. K =< 26 D. K> 26 Hey guys please help. ASAP
Wednesday, May 4, 2016 by Minnie

MATH
Write an inquality for the situation. Sam scored at least 26 points. A. K > 26 B. K => 26 C. K =< 26 D. K> 26 Hey guys please help. ASAP
Wednesday, May 4, 2016 by Minnie

Math
Aimi is making Valentine’s Day cards for everyone in her class. She plans to use a whole sheet of paper for each of her 6 closest friends. She will use 1/8 of a sheet of paper for everyone else in the class. She has 34 sheets of paper. How many of the smaller cards can ...
Wednesday, May 4, 2016 by Martin1162

Math
he federal government requires a car manufacturer to have a minimum miles per gallon (mpg) average over the models it makes. Suppose that the mpg’s for the five models of a manufacturer are 19, 21, 22, 28, and 18, and the government requirement is 27 mpg. The last of the ...
Wednesday, May 4, 2016 by angela

Math
Consider the distribution of mathematics SAT scores of students in honors calculus at a liberal arts college. What would you expect the shape and variation of the distribution to be? A. Symmetric with little variation B. Symmetric with large variation C. Skewed right with ...
Wednesday, May 4, 2016 by angela

Math
The graph below was drawn with output on the vertical axis and input on the horizontal axis. What does the graph indicate about the relationship between the input and the output?
Wednesday, May 4, 2016 by Val

math
How much money should be invested now (rounded to the nearest cent), called the initial investment, in a Treasury Bond investment that yields 4.75% per year, compounded monthly for 10 years, if you wish it to be worth $20,000 after 10 years?
Wednesday, May 4, 2016 by jjiiddss 0-0

math
make each of the following the subject of the formula n,s,c in (1-n√s/c)*100/1
Wednesday, May 4, 2016 by david

math
estimate the radius of a circle with circumference of 272.2 inches use 3.14 for pi round to the nearest tenth A. 43.3 B.136.1 C.86.7 D.5887.2
Wednesday, May 4, 2016 by Larry

math
Suppose the daily high temperature in a town is 3 degrees above average one day, then 5 degrees below average the next day, then 2 degrees above average, then 1 degree below average, then 6 degrees above average, then equal to the average the next day. Find the mean deviation ...
Wednesday, May 4, 2016 by Julie

Math
the room is rectangular and measures 9 feet on one side and 15 feet on the other. she needs 0.5 ounces of paint per spuare foot. how much paint does she need?
Wednesday, May 4, 2016 by Dennis

Math
If a seed is planted, it has an 85% chance of growing into a healthy plant.if 8 seeds are planted what is the probability that exactly 3 don't grow ?
Wednesday, May 4, 2016 by Amy

math
Triangle ABC below is translated 1 unit right and 2 units down. What are the coordinates of the translated triangle? Use arrow notation to write a rule for this translation.
Wednesday, May 4, 2016 by doglover

math
A girl has 5 books that she wants to read. She wants to read the nonfiction book first and the mystery book last. In how many orders can she read the books?
Wednesday, May 4, 2016 by Armaan butler

math
A boat takes 2 hours to go 40 km down the stream and it returns in 4 hours . Find the speed of the boat in still water and the speed of the stream
Wednesday, May 4, 2016 by Anonymous

math
Triangle ABC is reflected over the y-axis what are the coordinates of the reflected triangle describe in words what happens to the x coordinates and the y coordinates of the original triangle's vertices as a result of this reflection.
Wednesday, May 4, 2016 by doglover

Math
What force do you have to apply weighing 1000 ibs to have it accelerate to .2 m sec
Wednesday, May 4, 2016 by Ro

SAT math
The population of a city can be modeled using the formula P=100,000e^(0.05t), where t is the number of years after 2012 and P is the city's population. Which of the following equations can be used to find the number of years after 2012 that the population will triple to ...
Wednesday, May 4, 2016 by Anonymous

math
the brown family boarded a train at 3:55 P.M. to go home from the county fair. it took them 25 minutes to get to the train station from the fair. they spent 75 minutes at the fair. what time did they arrive at the fair
Wednesday, May 4, 2016 by Joseph

Math
If you compose the two congruent triangles shown below into a single figure, which term(s) best describes the new polygon?
Wednesday, May 4, 2016 by Desiree Hall

math
Martin works 32 hours a week for $7.50 an hour. Calculate his straight time pay over a 4-week period.
Wednesday, May 4, 2016 by jjiiddss 0-0

Math
Difference between two numbers is 5 and the product is 6 find the numbers
Wednesday, May 4, 2016 by Anonymous

math nid this asap tyy
(Velocity and acceleration.) The acceleration of gravity on the surface of the Moon is a = 1.6 m/s2, as opposed to g = 9.8 m/s2 on Earth. An Olympic high-jumper can jump to about 2.35 m on the surface of the Earth. What height could an Olympic high-jumper reach on the surface ...
Wednesday, May 4, 2016 by Than

math REPLY ASAP :(
Match the parametric curve to its description. Be careful: It is possible that the same description fits more than one parametric curve! (a) (t + 1,4t−2) (1) A portion of a parabola. (b) (t2,3t2) (2) A straight line traversed at constant speed. (c) (cost,2(cost)2...
Wednesday, May 4, 2016 by BIBO

math
Mdm Lee gave Nathan and Jasper some money on Friday.On Saturday,Nathan gave 1/3 of the amount he had to Jasper.On Sunday,Jasper gave 1/3 of the amount he had to Nathan.In the end,Nathan had $96 and Jasper had $120.How much did each of them have at first?
Wednesday, May 4, 2016 by Crystal

math, functions
f(x) = 1/(1−x) is given. From this we produce two new functions: g(x) = f(f(x)) and h(x) = f(g(x)). (a) For which values of x is f(x) undefined? (b) Find a formula for g(x), and simplify it. (c) For which values of x is g(x) undefined? (d) Find a formula for ...
Wednesday, May 4, 2016 by (A question about functions.) The function

HELP MATH ASAP
For questions 1–4, find the slope of the following graphs. 1. (1 point) 2 –2 – 2. (1 point) 1 –1 – 3. (1 point) 3 – 4. (1 point) 0 1 –1 undefined For questions 5 and 6, find the slope of the line that goes through the following points. 5. (1 ...
Wednesday, May 4, 2016 by Anon

MATH HELP ASAP
identify the sequence as arithmetic, geometric, or neither. please explain answer 1.6,0.8, 0.4, 0.2,...
Wednesday, May 4, 2016 by Anon

math
Peanut butter cookies. 1 3/8 cup of butter and 5/8 cup of peanut butter. How much more butter is needed than peanut butter?
Wednesday, May 4, 2016 by jaylen

MATH HELP ASAP
use the expression to find the value of the 20th term. a. 24 b. 76 c. 80 d. 84
Wednesday, May 4, 2016 by Anon

Math
Please solve y=3x2 the 2 represents the exponent, because I don't know how to place the exponent in the equation.
Tuesday, May 3, 2016 by Larry

Math
John bought 8 apples and 10 oranges for a total of $41.60. An orange cost 70 cents less than an apple. What was the total cost of the apples?
Tuesday, May 3, 2016 by Max

MATH HELP ASAP
identify the sequence as arithmetic, geometric, or neither 3, 4.5,6,7.5,...
Tuesday, May 3, 2016 by Anon

Math
Zoe can feed six horses in one hour. Matt takes three times as long to feed that many horses. How long will it take them together to feed 32 horses? a) 2 hours b) 3 hours c) 4 hours d) 6 hours
Tuesday, May 3, 2016 by Meg

Math
Gym1 has $40 fee + $10 towel fee + $25 per month. Gym2 has $50 fee + $15 per month + $10 Zumba class per month - solve by elimination or by graphing when do the two gyms cost the same? 40 + 10 + 25m 50 + 15m not sure what to do with the 10m as this wont always be spent? Have ...
Tuesday, May 3, 2016 by debbala

Math
Determine whether the statement is true or false. Explain. "The median divides the box of a box-and-whisker plot in half." I think it is true but I can't think of an explanation.
Tuesday, May 3, 2016 by Helen

Math
Find the surface area of the prism. Rectangular Prism L=13 m W=6 m H=5 m A) 48m B)346m**** C)780m D)195m Please help!
Tuesday, May 3, 2016 by Sally

math
A company paid $48 for 2 cases of printer paper. Each case contained 12 packages of paper. Next month the company’s office manager needs to order 180 packages of the same paper. If the price per package does not change, what would be the total cost of next month’s ...
Tuesday, May 3, 2016 by may

math
. At a concert, 20% of the audience members were teenagers. If the number of teenagers at the concert was 360, what was the total number of audience members?
Tuesday, May 3, 2016 by may

math
The eight bills in Mike's pocket are worth less than $30 what possible12 combinations could he have only using ten dollars $5 and $1 bills
Tuesday, May 3, 2016 by Naima

Math
The function f(x)= 3^x was replaced with f(x)+k resulting in the function graphed to the right. What is the value of k?
Tuesday, May 3, 2016 by Koki

Math
The function f(x) = 3x+7 represents the cost to rent x movies each month from Netflix. Alex has $15 now. How many more dollars does he need to rent 9 movies next month?
Tuesday, May 3, 2016 by Koki

Math
The pizza slices served at Connors pizza palace are1/4 off a whole pizza. There are 3 pizzaso ready to be served.14 children come in for lunch is there enough pizza for every child?
Tuesday, May 3, 2016 by Ramon

Math
In square ABCD, E is the midpoint of Iine BC, and F is the midpoint of line CD. Let G be the intersection of line AE and line BF. Prove that DG = AB
Tuesday, May 3, 2016 by Uniqua

math
how do you do 234.5 x 567.9
Tuesday, May 3, 2016 by sckid30

math
Grade 5 will plant 1/3 of the whole school garden. So far, they have planted ¼ of the whole school garden. What fraction of the school garden still needs to be planted by grade 5?
Tuesday, May 3, 2016 by Drequan

Math
A cannon ball is shot out of a cannon buried 2m in the ground. The height of the cannonball can be approximated by the equation h=-5t^2+35t-2 where is the height of the cannonball in meters and t is the time in seconds. a)how long will it take the cannonball to reach ground ...
Tuesday, May 3, 2016 by Math Man

math
The current in a stream moves at a speed of 4 mph. A boat travels 24 mi upstream and 24 mi downstream in a total time of 14 hrs. What is the speed of the boat in still water?
Tuesday, May 3, 2016 by lauren

math help me asap
whats 12! divide by (4!8!) i dont know the answer please help
Tuesday, May 3, 2016 by Anon

Math
hello, write a quadratic equation in the form y=ax^2+bx+c, where a,b,c are all integers and the graph opens downward, whose roots are 3 and -6 steps in order to do this?
Tuesday, May 3, 2016 by Hi

math
The roof of a home rises vertically a distance of 8 ft through a horizontal distance of 12 ft. Find the pitch (slope) of the roof plz help ASAP
Tuesday, May 3, 2016 by Anonymous

math
The roof of a factory rises vertically 6ft through a horizontal run of 27 ft. What is the pitch of the roof?
Tuesday, May 3, 2016 by Anonymous

Math
Solve the system of equations algebraically . show all your steps. Y=x^2+2x Y=3x+20
Tuesday, May 3, 2016 by Subhanhassan

Math
Consider the distribution of mathematics SAT scores of students in honors calculus at a liberal arts college. What would you expect the shape and variation of the distribution to be? A. Symmetric with little variation B. Symmetric with large variation C. Skewed right with ...
Tuesday, May 3, 2016 by angela

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