Tuesday
January 24, 2017

# Homework Help: Math

## Recent Math Questions

math
A boy spent one-half of his money for a book and one-third of his money for a pen. The remaining $2.25 he saved. How much money did he have originally? Monday, December 5, 2016 by sid Math Round 123,166,749 to the neartest thousdand Monday, December 5, 2016 by Natleata Math A hot air balloon rising vertically is tracked by an observer located 4 miles from the life off point. At a certain moment, the angles between the observers line of sight and the horizontal is Pi/4 and it is changing at a rate of 0.1. How fast is the balloon rising at this ... Monday, December 5, 2016 by Victoria URGENT 4TH GRADE MATH What is 4,399Ã·6 with a remainder? sorry I am not good with remainders. Monday, December 5, 2016 by Anonymous kid (no name pl VERY, VERY URGENT 4TH GRADE MATH!!!!!!!!!!!!!!!!!! What is 44 divided by 7 with a remainder? Monday, December 5, 2016 by Anonymous kid (no name pl Math A player has 37 hits in 192 times at bat. Write the player's batting average as a decimal. Round to the nearest thousandth. A. 0.192 B. 0.193 C. 0.197**** My answer D. 0.293 Is it correct Monday, December 5, 2016 by Help MATH URGENT!!!!! The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 2x + 1 How much more is the rate of ... Monday, December 5, 2016 by Anonymous fourth grade math What is 271Ã·7 with a remainder? Monday, December 5, 2016 by Anonymous (no name pl Math Can someone explain to me in there own words How is using a conversion factor different than using proportions to convert measurement units and which one is easy because i don't understand Monday, December 5, 2016 by Sid.V Math Two different numbers are randomly selected from the set${ - 2, -1, 0, 3, 4, 5}$and multiplied together. What is the probability that the product is$0$? Monday, December 5, 2016 by Christine Math A student randomly guesses the answers to a four question true or false quiz. Find the probability that the student answers F on at least 2 of the questions Monday, December 5, 2016 by Cheis math One day during flu season, 1/3 of the students in a class were out sick, and only 24 students were left. How many students are in the class? Monday, December 5, 2016 by kendra math sam was exercising on his treadmill. He walked 3/8 of a mile and than ran 2/5 of a mile within 30 minutes. How many miles has sam done on his treadmill? Monday, December 5, 2016 by anna math lucy had 48 balloon for her berthday if 1/4 of the balloon are red 1/3 of then are blue and the rest are yellow how many yellow balloons did she have? Monday, December 5, 2016 by jayzel allen v sayco Math A man purchased eggs at the rate of Rs 48 per tray of 30 eggs . At what rate per hundred should he sell the eggs to gain 15% Monday, December 5, 2016 by K!@#$%^&ij

Math
f(x) = cos(x) + 3x Find f^-1 (1) and (f^-1)' (1) f^-1 (1) = 0 (f^-1)' (1) = 1/3 These are the answers given, but I also don't understand how my teacher got these.
Monday, December 5, 2016 by Dave

Math
f(x) = x^5 + 2x^3 + x - 1 Find f^-1 (3) and (f^-1)' (3) f^-1 (3) = 1 (f^-1)' (3) = 1/12 Those are the answers, but I have no clue how my teacher got them.
Monday, December 5, 2016 by Dave

Math
The ratio of the number of goats in farm x to the number of goats in farm y was 9:4. After 35 goats were transferred from farm x to farm y,there was an equal number of goats in each farm. how many goats were there in each farm at first?
Monday, December 5, 2016 by Anonymous

math
Using fermats little theorm, find the least residue of 8^123 modulo 61
Monday, December 5, 2016 by hasnaa

Math
Recipe needs to make exactly 10 cups. 5 ingredients. Using 1/3 cups and/or 1/4 cups only. Please help.
Monday, December 5, 2016 by Cam

Math
Monday, December 5, 2016 by Anonymous

math
A sphere of radius 7 m is circumscribed about a regular triangular prism. If the base edge of the prism is 1 m, find the volume of the prism (in m3). Round off your answer to four decimal places.
Monday, December 5, 2016 by James

math
the perimeter of a parallelogram is 88 cm and one of its adjacent sides is longer than the other by 10 cm. Find the length of each of its sides
Monday, December 5, 2016 by suman

Math
TanA VYAPAK SLOVED
Monday, December 5, 2016 by Anonymous

Math (statistics)
Suppose an employee starts working after completing her MBA at age 30 at a starting salary of $50,000. She expects an annual salary increase to be at minimum 1%, at maximum 5%, with a uniform distribution. Her retirement plan requires that she contribute 8% of her salary, and ... Monday, December 5, 2016 by Jo math four times a number plus three times the sum of a number and four is equal to negative nine Monday, December 5, 2016 by alice Math grade 10 In triangle ABC with coordinate A(3,4), B(-5,2) and C(1,4) , line segment CF is the altitude of triangle ABC. Determine the equation of the line that collinear to line CF Monday, December 5, 2016 by Unknown Math - Coordinate Geometry Find the equation of the line which cuts the y-axis at -3 and is parallel to 4x-y+=0. Please show working out, thanks. Monday, December 5, 2016 by Anonymous Math If the hot-air balloon shown in the shape of spehre, what is its radius? (Hint: V= 15,000 cubic ft.) Sunday, December 4, 2016 by Alazia math a metalworker has a metal alloy thay is 25% copper and another alloy that is 60% copper. how many kilograms of each alloy should the metalworker combine to create 90kg of a 53% coppet alloy Sunday, December 4, 2016 by shea Math The diagonal of a square is 3 feet long. Find its perimeter. My answer: a^2+b^2=c^2 x^2+x^2=3^3 2x^2=9 divide both side by 2 x^2=4.5 x=âˆš4.5 x=2.1 feet Is this right? Sunday, December 4, 2016 by Taylor Math r=4/(-2-6sinÏ´) 1. What is the eccentricity of the function? 2. What is the distance between the pole and the directrix? 1. A. 2 B. -2 C. 3 D. -3 2. A. 2 B. 2/3 C. 3 D. 6 Sunday, December 4, 2016 by Sade Math Input 48,24,12,6 Output24,12,6,3 Rule? Sunday, December 4, 2016 by Anonymous 6th grade math My question is: Between which two whole integers is -0.5. how do I explain this Sunday, December 4, 2016 by Justin MATH Let F(x) = âˆ«0 to x e^(t^2)dt a) Compute limx â†’ âˆž (xF(x))/ (e^(x^2)) b) Compute limx â†’ 0 F(x)/(xe^(x^2)) Sunday, December 4, 2016 by HELLPPP!!!! math Theresa has a chose of which pack of pencils to buy. At the store 20 pencils cost$4.00, or 12 pencils for $2,70. A) which is the better buy based on its cost per pencil? B) what is the difference of the cost per pencil between each pack? Sunday, December 4, 2016 by Anonymous math r is no less than 1 unit from 24 Sunday, December 4, 2016 by jacob Math Jessica has been given a list of 4 bands and asked to place a vote. Her vote must have the names of her favorite and second favorite bands from the list. How many different votes are possible? Sunday, December 4, 2016 by Sara Math Two parallel lines are cut by a transversal Suppose mâˆ 438Â° Find mâˆ 6 and mâˆ 7 * mâˆ 6 and mâˆ 7 are corresponding angles * Sunday, December 4, 2016 by Sara math Dr. Mallory practices at your hospital and your competitor. Presented below are data for DRG 469 (major joint and limb reattachments, (lower extremity) with MCC that reflects practice patterns for Dr. Mallory at the two hospitals: Your Hospital Competitor ... Sunday, December 4, 2016 by Alfred Johnson Math A company establishes a sinking fund in order to have 100,000 for upgrading office equipments in 4 years. If the company makes fixed monthly payments into an account paying 6.6% compounded monthly, how much should each payment be? How much interest will the account earn in 4 ... Sunday, December 4, 2016 by John Statistics (Math 210) Hi there, I am doing my statistics homework and am having trouble with a few problems. I sincerely appreciate any help I receive! :) According to a local chamber of commerce, in 1993, 5.9% of local area residents owned more than five cars. A local car dealer claims that the ... Sunday, December 4, 2016 by Chris Statistics (Math 210) Hi there, I am doing my statistics homework and am having trouble with a few problems. I sincerely appreciate any help I receive! :) A manufacturer claims the standard deviation of salt in their meat is .5. An SRS of 18 samples shows the standard deviation (s)= .62 (alpha = .... Sunday, December 4, 2016 by Chris Statistics (Math 210) Hi there, I am doing my statistics homework and am having trouble with a few problems. I sincerely appreciate any help I receive! :) A manufacturer claims that the mean lifetime of its lithium batteries if 1200 hours. A homeowner selects 25 of there batteries and finds the ... Sunday, December 4, 2016 by Chris Statistics (Math 210) Hi there, I am working on a few homework assignments and having trouble with a few questions. I sincerely appreciate any and all help! :) A bank claims that the mean waiting time in line is less than 4.1 minutes. A random sample of 60 customers has a mean of 4 minutes with a ... Sunday, December 4, 2016 by Christa Math A college class with 30 sophomores, 18 juniors, and 12 seniors is divided into project groups where each group has the same number of sophomores, juniors, and seniors. What is the greatest number of groups that can be formed? How many sophomores, juniors, and seniors are in ... Sunday, December 4, 2016 by Barbara Math A rectangular Persian carpet has a perimeter of 216 inches. The length of the carpet is 30 inches more than the width. What is the dimension of the carpet Sunday, December 4, 2016 by Matt Math On Sunday Mrs Scott drove for 10 hours at an average speed of 60 miles per hour on Sunday she drove for 10 hours at an average speed of 55 miles per hour her car can travel 25 miles for each gallon of gas how may gallons of gas did Mrs Scott use on both days Sunday, December 4, 2016 by Jenny Math T=r/d What is r? What is d? And how? Sunday, December 4, 2016 by Freddy Math A clock loses 1/2 minute every hour if it is put right at 6:00am on Sunday what time will it show the following Sunday when the correct time is 7:00 am Sunday, December 4, 2016 by Ady math Eldon received 72 on his first calculus test. The marks were normally distributed with a mean of 60 and a standard deviation of 8. He received 80 on the next test, which was normally distributed with a mean of 75 and a standard deviation of 6. Which was the better mark, ... Sunday, December 4, 2016 by josh Math how many different sums of money can be formed by choosing 1 or more coins from 4 different kind of coins? Sunday, December 4, 2016 by NINAA math algebra A tax free municipal bond pays 4.75% compounded continuously. What is the value of a$2,000 bond after 30 years? Round your answer to the nearest cent. [Hint- A=P e^rt where P= present(initial) value, A= future value, r= annual rate, and t= number of years] P.S.The rt is an ...
Sunday, December 4, 2016 by tom

Give quadrilateral EFGH ,with coordinates E(1,4), F(1,2), G(5,0) and H(3,4); verify that EG bisects FH
Sunday, December 4, 2016 by Unknown

math
The Following Table gives the sales for the Sasquatch Men's Shoe store: Shoe Size , Frequency (number of pairs sold) 4 , 8 5 , 12 6 , 31 7 , 50 8 , 58 9 , 46 10 , 37 11 , 14 12 , 11 1)determine the mean for the distribution, correct to 2 decimal places. 2) Determine the ...
Sunday, December 4, 2016 by josh

GCF and LCM of 252, 420, and 180 252: 2,2,3,3,7 420: 2,2,3,5,7 180: 2,2,3,3,5 GCF is 12 and I think LCM is 1260? Can you please tell me if I'm right?
Sunday, December 4, 2016 by Farhin

math help
What is the smallest number i must multiply 315 in order to make it a perfect cube? Please tell me the method you sed and how you got the answer. I've been doing guess and check and it is time consuming.
Sunday, December 4, 2016 by Farhin

math
On May 23, Samantha Best borrowed $4,000 from the Tri City Credit Union at 13% for 160 days. The credit union uses the exact interest method.What was the maturity value of the loan? Sunday, December 4, 2016 by Anonymous math A rational function is defined as this: $$f(X) = \frac{a_0 + a_1X + a_2x^2 + \cdots a_n X^n } {b_0 + b_1X + b_2 X^2 + \cdots + b_mX^M}$$ Which allowing complex numbers can be factored to this:$$f(X) = \frac{a (X - \alpha_1)^{e_1} (X - \alpha_2)^{e_2} \cdots (X - \alpha_r... Sunday, December 4, 2016 by clay Math Please Help Me! The equations below express the relationship between a person's height, H, and femur (thigh bone) length, F. Both measurements are in inches. Males : H=27.5+2.24F Females: H=24+2.32F a) If a man's femur is 20 inches long, about how tall is he? b) If a ... Sunday, December 4, 2016 by Minny math you are dealt 13-card bridge hand from a 52-card bridge deck. what is the probability that you will be dealt exactly 5 hearts? what is the probability that you will dealt at list 2 hearts? what is the probability that you will receive 5 hearts, 4 clubs, 2 diamonds, and 1 spade? Sunday, December 4, 2016 by Alex Math A submarine is at a depth between 100 and 200 feet the surface of the water is represented by the number 0. Which number could represent the depth, in feet, of the submarine? A-225, b-145, c40, d 165.. Sunday, December 4, 2016 by Larry Math If the perrimiter of a regular hexagon is 75 what is the length of each side Sunday, December 4, 2016 by Rose 7th grade math A track is 3/4 mile long . The track is measured in units called furlongs. one furlong is equivalent to an 1/8 of a mile. Ho long is the track in furlongs? Thanks! I think it is 3/4 times 1/8 equal 3/32 Sunday, December 4, 2016 by please check my work math Tony bought some stock for$504. If each share had cost $4 less he could have bought 3 more shares for the same$504. How many shares of stock did he buy
Sunday, December 4, 2016 by jacob

Math
Amman hikes 2 3/4 miles of nature trail in 1 hour and 15 minutes. How many miles of trail does Amman hike per hour?
Sunday, December 4, 2016 by Mo

Math
a number n is divided by 4 and the result is divieded by 3 . The final result is 2. What was the original number?
Sunday, December 4, 2016 by Rifat

Math
If he arranges the chairs and six years of the same morning he has all the chairs left over if he arranges the chairs and four rows of the same link he has 19 years left over how many chairs does Liam have
Sunday, December 4, 2016 by Jimmy

math
When a chemist dilutes pure acid with another substance, the resulting mixture is no longer pure acid. Consistent with the words, pure acid is 100% acid. So, there are 20 grams of pure acid in 20 grams of a pure-acid solution. Laura, a chemist, has 20 grams of a solution that ...
Sunday, December 4, 2016 by Julia

math
The results of a survey of students favorite candy is shown. If 100 students were surveyed. 30% students would prefer which candy? Gummi bears 23% Skittles 30% Jolly Ranchers 32% starburst 15%
Sunday, December 4, 2016 by kk

MATH
a man bought a piece of land for rs 15000.he sold 1/3 of the land at loss 5% and what gain % should he sell the remaining to gain 8% on the whole.
Sunday, December 4, 2016 by KUKU

Math
A basket of flowers weighing 2kg is placed on a flat grassy slope. The coefficient of static friction between the basket and the slope is 0.4, and the basket is on the point of slipping down the slope. Draw a force diagram to indicate forces (including friction) that act on ...
Sunday, December 4, 2016 by s17

Math
Using his driver on the 7th tee, Chris hits an excellent shot, right down the middle of the fairway. The ball follows the parabolic path shown in the figure, described by the quadratic function: h(x)=0.5x-0.002x^2. This relates the height, h, of the ball above the ground to ...
Sunday, December 4, 2016 by Meghan

Math
A boat traveled 36 mi up a river in 3 hours, returning downstream, the boat took 2 hours. What is the boat's rate in still water and what is the rate of the river's current?
Sunday, December 4, 2016 by Raquel

Math
tinku is fond of collecting spiders and insects. He knows spiders have 8 legs and insects have 6 legs. he counted 36 legs. How many of each does he have in hi collection?
Sunday, December 4, 2016 by Har!@#$%^&a Math Using his driver on the 7th tee, Chris hits an excellent shot, right down the middle of the fairway. The ball follows the parabolic path shown in the figure, described by the quadratic function: h(x)=0.5x-0.002x^2. This relates the height, h, of the ball above the ground to ... Sunday, December 4, 2016 by Meghan Math A man weight 72 kg his wife rate is 25% less than his if there's somewhere 10% more than his mother find the son weight Sunday, December 4, 2016 by ICSE mathematics for class 6 math A factory kept increasing it's output by the same percentage every year .find the percentage if it is known that the output is doubled in the last two years. Sunday, December 4, 2016 by daisy Math If a and b are roots of ax^2+2bx+c=0 and p+s and q+s are roots of Ax^2+2Bx+C=0 then prove b^2-ac/B^2-AC=a^2/A^2 Sunday, December 4, 2016 by Aradhna Math geometry Given:segment FJ congruent to segment IJ Conclusion: Reason: Sunday, December 4, 2016 by Dorothy maayas Math The Walters' backyard pool is rectangular in shape and is similar to the rectangle formed by their fenced backyard. The pool measures 10 ft long and 8 ft wide. If the length of the backyard is 35 ft long, what is the width of the backyard? Sunday, December 4, 2016 by marilyn math trapezoid abfe is similar to trapezoid efcd. a 3 b e 4.5 f d c What is the length of ___? DC Sunday, December 4, 2016 by marilyn Math Search: Side of a rectangle is in the ratio 1:1âˆš2 if the length of the larger sides is 12cm then find its area Sunday, December 4, 2016 by Basheera math two number cubes are rolled. what is the probability of getting a sum less than 5? 68/100 =0.68=68% ?? can you explained how to solve showing steps. Sunday, December 4, 2016 by marilyn Math Two debts ---- the first of$800 due six months ago and the second of \$1400 borrowed one year ago for a term of three years at 6.5% compounded annually ---- are to be replaced by a single payment one year from now. Determine the size of the replacement payment if interest is 7...
Saturday, December 3, 2016 by Chris

A rectangular chicken yard was built against an existing barn wall (as shown in the picture). 30 m of fencing was used to enclose the yard. a) Find the dimensions of the yard its area is 108 m! How to solve this problem..?
Saturday, December 3, 2016 by AM

math
A bucket of 20 litres is 35%full.how many litres of water must be put into it so that it is 65% full?
Saturday, December 3, 2016 by nitish kumar

math
The Following Table gives the sales for the Sasquatch Men's Shoe store: Shoe Size , Frequency (number of pairs sold) 4 , 8 5 , 12 6 , 31 7 , 50 8 , 58 9 , 46 10 , 37 11 , 14 12 , 11 1)determine the mean for the distribution, correct to 2 decimal places. 2) Determine the ...
Saturday, December 3, 2016 by josh

math
a) from a to of 12 flatres, 4 are selected at random. if the lot contains 4 defective flares (flares that wilt fire), what is the probability that all 4 will not work? B) what is the probability that at most 2 will not work?
Saturday, December 3, 2016 by josh

math
you are dealt 13-card bridge hand from a 52-card bridge deck. what is the probability that you will be dealt exactly 5 hearts? what is the probability that you will dealt at list 2 hearts? what is the probability that you will receive 5 hearts, 4 clubs, 2 diamonds, and 1 spade?
Saturday, December 3, 2016 by josh

math
n/3+5>4 what is the answer. 3 a-4 less than or equal to 5 What is the answer 25>1-3 d 2 y-2<14 5 z greater than or equal to -75 x/-10>6 you have to read 150 pages and you already read 82 you have to read p many pages more. how many more do you have to read? Answer ...
Saturday, December 3, 2016 by Ginger

Math
A man drives 40 3/8 miles to work each day he stops for coffee at a shop that is 1/2 of the way to his job how far does the man drive before he stops for coffee
Saturday, December 3, 2016 by Jenny

Math
Shawna reduced the size of a rectangle to a height of 2 inch. What is the new width if it was originally 24 inch wide and 12 inch Tall?
Saturday, December 3, 2016 by Ibrianna Gibbs Mattocks

Math
A furniture maker is building a bookshelf she needs to cut rectangular pieces of wood to a length of 5/12 foot and a width of 2/3 foot what is the area of a piece of wood that size
Saturday, December 3, 2016 by Jenny

Math
A construction worker bought 21 7/8 Pounds of nails when those nails were all used she bought 2 1/2 times as many nails as she had bought the first time how many pounds of nails did she buy the second time
Saturday, December 3, 2016 by Jenny

Math
An alloy is made up of 25% copper, 30% iron an rest being zinc. Find the mass of zinc in 720 gm of the alloy
Saturday, December 3, 2016 by Tanya

Math
Kareena got 60% marks in English, 75% in hindi and 130 in maths. The max marks in each of subject are 150,200and 150. Fknd her aggregate marks.
Saturday, December 3, 2016 by Tanya

Math
A man takes commission at the rate of 2% on first 50,000, 7% on next 50,000 and 0.5% on remaining price. Find bis commission on the car that has been silf for 2,38,000.
Saturday, December 3, 2016 by Tanya

Math
Kareena got 60% marks in English, 75% in hindi and 130 in maths. The max marks in each of subject are 150,200and 150. Find her aggregate marks.
Saturday, December 3, 2016 by Tanya