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statistics
a mathematically defined curve that is the comparison distribution used n ANOVA is called the?
maths
if f(x)=(x^2)(e^x) prove by induction that the nth derivative is (x^2 +2nx +n(n-1)(e^x) thanks
Math
x'2+ 10= 3x+17. Use the quadratic formula to solve.
math
12 gallons of paint 9 gallons of paint _______________ =_____________ 8,329 ft2 1,240 ft2
Math
Find each rate 240 pounds of fertilizer __________________ 6 lawns
Math
1.If a person jogs at a rate of 5 1/2mi/h for 3 1/2 h in a week, how many calories do they burn? 2. If a person runs in place for 15 minutes, how many calories will be burned? 3. If a person cross-country skis for35minutes, how many calories will be burned? 4. How many hours w...
math
Crafts. Marc took 3 hours (h) to mow a lawn while Angelina took 150 minutes (min) to mow the same lawn a week earlier. Write the ratio of Marc’s time to Angelina’s time as a ratio of whole numbers.
Math
Use linear approximation, i.e. the tangent line, to approximate 1.6^3 as follows: Let f(x) = x ^3. The equation of the tangent line to f(x) at x = 2 can be written as y=12x-16 Using this, we find our approximation for 1.6 ^3 is ???????
Math
Business and finance. A store has T-shirts on sale at 2 for $5.50. At this rate, what do five T-shirts cost?
Math
12 gallons of paint 9 gallons of paint _______________ =_____________ 8,329 ft2 1,2402 ft2
Math
Determine whether each pair of fractions is proportional. 5 75 _ ? __ = 8 120
Math
Which is the better buy: 5 lb of sugar for $4.75 or 20 lb of sugar for $19.92?
Math
Find each rate 240 pounds of fertilizer __________________ 6 lawns
Math
Crafts. Marc took 3 hours (h) to mow a lawn while Angelina took 150 minutes (min) to mow the same lawn a week earlier. Write the ratio of Marc’s time to Angelina’s time as a ratio of whole numbers.
Math
The ratio of 7 times to 3 quarters
Math
Write each of the following ratios in simplest form. The ratio of 5 3/5 to 2 1/10
Math
Consider the function f(x) = 7 x + 3 {x ^ -1 }. For this function there are four important intervals: (-infinity, A], [A,B),(B,C), and [C,infinity) where A, B and C are either critical numbers or points at which f(x) is undefined. Find A, B and C
Math
A fence 4 feet tall runs parallel to a tall building at a distance of 2 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?
Math
3xsquared-9x-11 How to map unto a graph
math
y=(x+3)(x-1)
Math (calc)
Given the function: f(x)=x^3(x-2)^2 , on the interval [-1,3] find the domain and Asymptotes ...Isn't the domain (-1<x<3) ? and as for the asymptotes I thought you could only find them for rational functions and since that function is not rational I guess there aren&#...
MATH
Rename each fraction as a mixed number. 17/4.
math
Mr. hernandez had to interview a total of 63 households in his assignment. H has already finished 28. what percentage of the households in his assignments has he finished? (round your answer to the nearest tenth of a percent.)
maths
differentiate using product, chain and quotient rule ln x / 5x-7 and e^x / 2x^3 - 1 could you help me out with the first and just point me in the right direction for the first i cant seem to get the steps in the right order and then it gets all muddled thank you A!
maths grade 1
Tom has half as many pennies as Sue. Sue has 20 pennies. How many pennies does Tom have ?
Math
Use Pascal’s triangle to read off the coefficients of the powers of x in the expansion of (1 + x)n for different values of the positive integer n. Check the results for n = 3 by expanding (1 + x)3.
Math
Draw a diagram to represent the identity (a + b)2 = a2 + 2ab + b2.
math
Rationalise the expression 1/(ã2 + ã3).
math
Melons cost QR1.5 each and apples cost QR3.75 per kilogram. A man buys apples and melons at the supermarket. Write a formula to describe the total cost of his purchase. Investigate how many melons and how many kilograms of apples he could buy for QR30. **QR is a currency :)
math
At noon, ship A is 40 nautical miles due west of ship B. Ship A is sailing west at 18 knots and ship B is sailing north at 23 knots. How fast (in knots) is the distance between the ships changing at 4 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.)
math
a)The sales representative tells you they also have two floor plans available, but they only have 38 homes available. Write an equation that illustrates the situation. Use x and y to denote floor plan #1 and floor plan #2 respectively. b)The representative tells you that floo...
math
Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a)The sales representative informs you that there are two floor plans still available, and that there are a total of 56 houses available. Use x to...
math
Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a)The sales representative informs you that there are two floor plans still available, and that there are a total of 56 houses available. Use x to...
Math
At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
Math
At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
Math
At a quality control checkpoint on a manufacturing assembly line, 8% of the items failed check A, 10% failed check B, and 2% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product failed check B, what is...
math
The London Eye is a large ferris wheel. Each sealed and air-conditioned passenger capsule holds about 25 passengers. The diameter of the wheel is 135 m, and the wheel takes about half an hour to complete one revolution. a) Determine the exact angle, in radians, that a passenge...
math
When a pilot banks an aircraft moving at a speed, v, in metres per second, at an angle a, the radius of the turn that results is given by the formula: r = v^2/g * tan(pi/2 - a) where g is the accelatation due to gravity, or 9.8 m/s^2. Use an appropriate equivalent trigonometri...
Math
Create a polynomial of degree 3 that has x-int at -1, 1, 3
math
y=16+x, for x
math
1.Explain why there is no number that can replace N to make the equation |n| = -1 true. 2. List the integers that can replace N to make the statement -|8| < n < -|-5| true. I don't really get what am I supposed to do?
math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all male kittens
math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all made kittens
math
your cat is expecting a litter of kitten.suppose the probability of a male kitten is 1/2.what is the probabilty that a litter of five kittens contain all made kittens
math
your aunt is building a garden in her backyard.she has 90ft of fencing to surroud it.if she wants the lenght to be 15 ft onger than the width , what should the dimensions of her garden be
math
start with 1, multiply by 2. then multiply the result by 3.then continue to alternate multiplying by 2 and by 3.what is the ones digit after the twelfth multiplication
math
suppose a license plate contains 4 digits.the probability of plate number having an even or an odd digit is the same.what is the probabilty of having a license plate with all even digits.
math
a dog owner has 200ft of fencing and wants to enclose the greatest possible rectangular area for her dog .what dimension should she use
math
The London Eye is a large ferris wheel. Each sealed and air-conditioned passenger capsule holds about 25 passengers. The diameter of the wheel is 135 m, and the wheel takes about half an hour to complete one revolution. a) Determine the exact angle, in radians, that a passenge...
math
a true or false test has 5 questions. what is the probability of guessing exactly four out of the five answers correstly.
Math-Answer included
{9, 7, 13, 24, 32, 45, 47} First you have to find the mean The mean is 9+7+13+24+32+45+47=177/7=25.2857=25.29 Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. {9, 7, 13, 24, 32, 45, 47} (25.29-9)^2=16.29^2=265....
math
You buy a belt for $10 and some socks.Each pair of socks cost $3.The total shipping cost $3.What is the total cost if you buy 11 pairs of socks
math (word problem) last one
The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and 2007. In what year will t...
math
A salesperson bought a caase of pens.On Monday, he sold 1/2 of the pens.On Tuesady, he sold 30 more.On Wednesday, he sold 1/3 of the pens that were left.On Thursday, he sold the remaining 40 pens.How many pens were originally in the case,
math
1) a company manufactures and sells a specialty watch. the financial reserach department detemines that at the price of $88 each, the demand would be 2,000 watches and at $38 each the demand will be 12,000 watches. A) assuming a linear relationship between price and demand, fi...
math (word problem)
In 1994, the life expectancy of males in a certain country was 65.7 years. In 2000, it was 69.0 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994 the linear function E(t) that fits the data is E(t)=?t+? use the function to...
math algebra
im not good with fractions when you have to graph them ........ graph the equation using the slope and the y-intercept. Y=5/3x+7
math algebra
The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and 2007. In what year will t...
math
1) a company manufactures and sells a specialty watch. the financial reserach department detemines that at the price of $88 each, the demand would be 2,000 watches and at $38 each the demand will be 12,000 watches. A) assuming a linear relationship between price and demand, fi...
math
What is the slope of the line perpendicular to the line whose equation is y= -2/3x-5?
math algebra
Trains A and B are traveling the same direction on parallel tracks. Train A is traveling at 100 mph and train B is traveling 110 mph. Train A passes a station at 6:10 A.M. If train B passes the same station at 6:40 A.M. at what time will train B catch up with Train A?
math
what is 12/3
Math: Pre-Calc
A right triangle has hypotenuse 5 inches long. Its area is 4 square inches. How long are the other sides?
SCIENCE/MATH
Land growing continuous grain corn as a cash crop loses soil at a rate of 14.0 metric tonnes ha-1 yr-1. This is a fertile soil, which has an organic matter content of 3.8% and nitrogen content of 0.35% (both by mass). a)Calculate how long it will take to erode the entire Ah ho...
math115
is the following set of numbers a perfect triple? 13, 15, 18
math
-3(2x-7)-12+10x=
math
Find the partial sum S_n for a geometric series such that a_{4} = 216, a_{9} = 52488, and n = 10.
5th Grade Math
Nick and Isaiah both run a mile. Nick runs in 8 minutes and Isaiah runs it in 10 minutes. How long would it take Nick to run pass Isaiah for a second time. I think the answer is 16 mintues. The LCM =40
math
Rusty the elephant was thirsty, despite the fact that water made up 85% of his body weight. After drinking a considerable amount of water, Rusty weighed 1350 pounds, and water made up 86% of his body weight. What was Rusty's weight before he had his drink? What was the wei...
9th grade Math
Tittle: Police Officer Salary: $3,142/month Average work hours per week:40 School Loan:$15,000 Responsible for patrolling an assigned area to prevent and discover crime and to enforce regulations.Duties may include:conducting investigations,making arrests,and testifying in cou...
math
why did king kong eat a truck?
math
Find the common ratio and write out the first four terms of the geometric sequence bracket (3 to the power of n-1)/(10) bracket ???? please help me!
Algebra 1
Mary's class took two tests last week. 80% of the class passed the math test, 90% of the class passed the English test, and 72% of the class passed both. What is the probablility that a randomly selected student in Mary's class failed both tests? Express your answer as...
Math
Find the 6th term of the geometric sequence with a4=256/625 and a11=-4194304/48828125
math
what is the exact value of 7pi/6
Math
I need help with this problem. In decimal form, write the ratio of the first 8 consecutive square numbers. 1 squared:2 squared, 2 squared:3squared, 3 squared:4 squared
Math radicals
What is the cube root of 24 plus the fith root of 192
math
Solve the quadratic equation. 3x^2 - 15x + 18 = 0
math
Give the equation of the line that passes through point (-5, -1) and is parallel to the line y = -1/4x- 7.
math
A woman has $1.70 in dimes and nickels. She has 5 more dimes than nickels. How many nickels does she have?
math
what is the fraction as an equvalent decimal of 20/25
Math
how would i do this problem 7 4/40 - 2 30/40
Math
The population of termites and spiders in a certain house are growing exponentially. the house contains 100 termites the day you move in. After 4 days, the house contains 200 termites. Three days after moving in, there are two times as many termites as spiders. Eight days afte...
math
900/400=?
math
9-5n+1=15
Math
Which is a better test score: 121/150 or 28/35 How do I figure?
Math
Conner estimated that the radius of one of the circles on the playground was 2 yards. If Conner was correct then: a. the radius was how many feet? b. the diameter was how many feet? Thanks!
5TH GRADE MATH
44 TIMES N =368....FIND N
5TH GRADE MATH
368/44
5TH GRADE MATH
211 DIVIDED BY 36?
math
a group has 6 fifth-graders, 7 sixth-graders, & 4 eighth-graders. One member of the group will win a prize. Describe the chances that the winner will be a sixth-grader
5th grade math
What is the least common multiple for the following? 1.) 7,8,10 2.) 2,5,6 3.) 3,4,7 Thank you
math
I need to know if i did these questions right. The main problem: A certain Metropolitan area is building a new Performing Arts Center with two auditoriums to be used as concert venues. Budget: 89,200,000 for construction cost 5,300,000 for land 1. What integer represents the t...
math
Helppp me! Need this in about 10 min. earlier the better!!!! pleaseee:) anyways... neg. 9/10 plus neg. 1/6 =?
math
how do you solve 34x(nx2)=680
Math
What is neg. 9/10 + neg. 1/6? Pleaseee help im stuck:/
Math
Can someone please check to see if I got these right. A store receives $400 cash after offering a chain discount of 10/10/5 on a good. What was the list price? $492.20 $519.82 $533.33 $612.00 Answer: $533.33 A merchant buys a good for $275. Their store's operating expenses...
math algebra (plz help ty)
The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and 2007. In what year will t...
5th grade math
Please find the least common multiple for each set of numbers: 7,8,10 2,5,6 3,4,7 _______________________________________ Beth has $0.60 more than Suzy. Together they have $8.20. How much money does each girl have? Thank you very much
Last Math problem I promise
a cellular phone company offers a contract for which the cost C, in dollars of t minutes of telephoning is given c=0.25(t-300)+65.95 where it is assumed that t >== 300 minutes what times will keep costs between 106.20 and 139.20? I am already lost at word problems... please...
pre- algebra(MATH)
I need help with pre-algebra solving equations by multiplying or dividing. Can you help me with this homework for free?
Math
Please tell me if the answers I posted are correct with the questions given. I am terrible at math. A certain Metropolitan area is building a new Performing Arts Center with two auditoriums to be used as concert venues. Budget: $89,200,000 for construction costs $5,300,000 for...
Math
5/3x+1/3x=3x+40/3+7/3x 3(5/3x+1/3x)=3(3x+40/3+7/3x) 7x+1x=9x+9+7x 7x=17x+9x=9
Math Inequalities
4(r-7)+2>5(r+3)-28 I tend to make things too difficult.. can someone please check my answer? {r l r > 31/4}
math
One canned juice drink is 25% orange juice another is 5% orange juice. How many liters of each should be mixed together in order to get 20L that is 24% orange juice? How many liters of the 25% orange juice should be in mixture? How many liters of the 5% orange juice should be ...
Math
In 1987, the population of Mexico was estimated at 82 million people, with an annual growth rate of 2.5%. The 1987 population of the United States was estimated at 244 million with an annual growth rate of 0.7%. Assume that both populations are growing exponentially. When will...
math
One canned juice drink is 25% orange juice another is 5% orange juice. How many liters of each should be mixed together in order to get 20L that is 24% orange juice? How many liters of the 25% orange juice should be in mixture? How many liters of the 5% orange juice should be ...
math115
I have tried and tried I just do not get it 6-5(3x-4)=-49 6-15x+20=-49 11-15x=-49 11-15=-49-49 15x=-98 x=6
Math Inequalities
One canned juice drink is 25% orange juice another is 5% orange juice. How many liters of each should be mixed together in order to get 20L that is 24% orange juice? How many liters of the 25% orange juice should be in mixture? How many liters of the 5% orange juice should be ...
Math Inequalities
-9/8x greater than or equal to -1/16 can someone please check my answer? my answer is x greather than or equal to 1/18 is this correct? if not what is the correct answer and what is the correct way to solve this problem..maybe I missed a step or did not do math correctly....
math
can someone please help me? I am stuck on a problem it deals with inequalities but it is in a word problem which makes it worse for me, how would I solve this problem? Miguel's insurance company will replace his car if repair exceeds 80% of the car's value. The car rec...
math115
3y-10+y+46=8y+40-6y I thought the answer was 3 or 3.33
8th grade
unscramble math words:goatnoc
math213
A student reports that it is impossible to mark a product up 150% because 100% of something is all there is. What is your response?
Algebra (math)
The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and 2007. In what year will t...
To Gunjan
Your posts have been removed. In the future, please remember these things: 1. This is a homework help website; please put your subject (math, science, English, or ??) in the subject line to make it faster for each teacher to find those questions in his/her areas. An even bette...
algebra 2.
Mr. Green, the Herbarium's owner, has come to you with another problem to solve. He wants to create a new sales display featuring giant potted plants and plants in smaller hanging baskets. He wants to set up the display in such a way that he can maximize his profit from th...
math
If the odds against an event A are 15 to 1, what is the probability associated with event A occurring?
math
Two cards are drawn without replacement from an ordinary deck of 52 playing cards. What are the odds against drawing a club and a diamond?
math
Two cards are drawn without replacement from an ordinary deck of 52 playing cards. What are the odds against drawing a club and a diamond?
math
Two dice are rolled. Find the odds that the score on the dice is either 10 or at most 5.
math
A basketball player with a free throw shooting percentage of 60% gets fouled and goes to the line to shoot two free throws. What are the odds in favor of her making her first shot?
math
Suppose you buy 1 ticket for $1 out of a lottery of 3000 tickets. If the prize for the one winning ticket is to be $500, what are your expected winnings?
science
Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters -12000J 2. pulling a television wei...
math
what should you say when you meet an angel
Algebra (math)
The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and 2007. In what year will t...
Maths
Three bananas cost the same as two oranges. If oranges are half the price of peaches, how many bananas could I get for the price of 3 peaches? My answers is 18 banannas. Is this correct? Thanks
Algebra (math)
1. The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and 2007. In what year wil...
Math
-15u=45
Maths
Two brothers Sam and Matt decide to buy a new game for their Xbox.Sam is going to pay twice as much as Matt.The cost of the game is $60.00.How much does each brother have to pay?
math
If a line is vertical, the definition of slope doesn't work for it. Why not?
math
If the linear velocity of a club head in the golf swing is 50m/s at impact, what was the angular velocity if the club is .95m long?
math
A cyclist completes 3.2 cycle revolutions in 1.4s. What is the angular velocity in radians per second?
math
An ice skater rotating around a vertical axis increases in angular velocityfrom 450degrees/s to 610degrees/s in 2.3 seconds. Find the angular acceleration
math
A hammer thrower releases the hammer after reaching an angular velocity of 14.9 rad/s. If the hammer is 1.6m from the shoulder joint, what is the linear velocity at release?
math
An object is spinning at 4 rev/s and starts deccelarting at .9 rev/s^2. How long will it take the object to stop?
math
if a skater is rotating a spin at a constant angular velocity at 2.5 rad/s for 1.1s, what is the angular acceleration?
math
what number would it be? question: If I have 500 pearls in my bag, and I ask you to take a number of pearls that when subtracted by 1 will be divisable by the numbers from 2 to 7 excluding 4, then how many pearls will be left in the bag?
Math
What times on a clock form an acute angle.. 2:00 6:40 1:30 12:50?
To: Economyst
I did mean Q Suppose you are the manager of a small chemical company operating in a competitive market. Your cost of production can be expressed as C = 100 + Q2, where Q is the level of output and C is total cost. a. Is this a short-run cost function? b. What is the marginal c...
To: Economyst
Hi there. You helped me with a couple of questions regarding Econ. I appreciate the help but my issue is I don't understand how you calculate the minimum average variable cost or the output that maximizes profit. I do understand that the price is more than the AVC so they ...
Math
In chess, a knight can move either two squares horizontally plus one vertically or two squares vertically plus one horizontall. a) If a knight starts from one corner of a standard 8*8 chessboard, how many different squares could it reach after i) one move? ii) two moves? iii) ...
5th grade Math
what is the greatest common factor for 7 & 35? is it 1 or 7? What is the greatest common factor for 12 & 36? Is it 6 or 12? Thank you.
Mathmatics
how do i solve 5(3-2n)=65
Mathmatics
add 14 to what subtract 2x to what and divide 3 by what rain
Mathmatics
how do i solve 7m=4m+21
Mathmatics
how do i solve 5x-14less than or greater to 2x+7
math
how do i solve -2(m+7)=-22
Math.
8.)10/x + x = 7 15.) s= 4+15/3 --------- -4(1)+1 idontknow if you get the dotted line but its suppose to be like a stright line under thoose numbers.
mathematics
12a^2b over 4 times 4a+8b over 20a^2b^3
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