Friday
September 30, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

math
The average salary of four managers in a firm is BDT 500000 per annum.every year all ten supervisors of that firm are paid BDT 200000each.what is the overrall yearly salary drawn by them in BDT?
Saturday, July 16, 2016 by Rashid

math
20 red marbles cost$3 while 40 marbels are available at$4.how much would it cost someone to buy 10 red marbles and 50 green marbles? 1.$3.50 2.$4.00 3.4.50 4.5.00 5.5.50
Saturday, July 16, 2016 by tashi

math
Thewhat is the difference between the mean and median of the first four prime numbers that are more than 4? The mean=9 and the median =11.so the ans should be -2.but in the answer sheet the ans is 0..how?
Saturday, July 16, 2016 by tanu

math
What is the difference between the mean and median of the first four prime numbers that are more than 4?
Saturday, July 16, 2016 by tanu

math
two groups of students went into the shop. the first group bought four hot dogs and six juices and paid $71. The second group bought three hot dogs and seven juices and paid $67. What were the prices for these items?
Saturday, July 16, 2016 by munyaradzi

math
find the trigonometric form of the complex number - (square root) 3 + i
Saturday, July 16, 2016 by laura

math
find the trigonometric form of -12-12(square root)3i a. 24(cos2pi/3 + isin 2pi/3) b. 24(cos4pi/3 + isin 4pi/3) c. 12(cos 4pi/3 + isin 4pi/3) d. 12(cos12pi/3 + isin 2pi/3) e. 12(squareroot) 2 (cos4pi/3 + isin 4pi/3)
Saturday, July 16, 2016 by laura

math
find the standard form of the complex number shown below 9(cos 11pi/6 + isin 11pi/6) a. 2/9 - 2(squareroot)3/9 i b. -4(squareroot)3/9 + 4/9 i c. 9/2 - 9(squareroot)3/2 i d. 9(squareroot)3/2 - 9/2 i e. -9(squareroot)3/4 - 9/4 i
Saturday, July 16, 2016 by laura

Math
Given that Force 1 = 70 pounds and Force 2 = 120 pounds , find the angle between the forces if the magnitude of the resultant force is 90 pounds . Round answer to the nearest degree. Hi steve, I asked this question earlier and you kindly helped me with it, giving me the answer...
Saturday, July 16, 2016 by oleg

math
Jason is considering purchasing a new machine to make plastic silverware. The machine produces 1,000 pieces of silverware in two hours. One box contains 50 pieces of silverware and sells for $3.00. If the machine costs $9,000, and runs for 24 hours a day, how many days will it...
Saturday, July 16, 2016 by mpho

Math
Lenth of side of isosceles triangle is 10 cm and angle between them is 30 degree. Find the area of the triangle?
Saturday, July 16, 2016 by Atreyee

Math
95 is the product of vidya's savings and 5
Saturday, July 16, 2016 by Paul

math 101
assume that a set of test scores is normally distributes with a mean of 120 and a standard deviation of 25. use the 68-95-99.7 rule to find the percentage of scores greater tha 145
Friday, July 15, 2016 by amy

Math linear equations
5(2x-3)-3(3x-7)=5
Friday, July 15, 2016 by Aditya

math ratios
mark is growing tomatoes in his greenhouse and needs to fill them with fertiliser. The ratio of concentrated fertiliser to water is 1:6. If mark needs 21 litres of diluted fertiliser, how much concentrated fertiliser and water will he need?
Friday, July 15, 2016 by alisha

Business Math
Solve the following by using the present value formula. Compound Amount- $700 Time Period(years)-8 years Nominal Rate (%)- 1.5 Interest Compounded monthly Compound Amount___________? Compound Interest _________?
Friday, July 15, 2016 by Tracey

Business Math
Solve the following by using the present value formula. Compound Amount- $675 Term of Investment-15 months Nominal Rate (%)- 2.7 Interest Compounded quarterly Present Value ___________? Compound Interest _________?
Friday, July 15, 2016 by Tracey

MATH
Carl walked 4 m west and 5 m south. Calculate how far he is from his starting point?
Friday, July 15, 2016 by maan

Math
A big can contains some milk pots of 2 liters, 4 liters, 5 liters capacity are to be filled whole number of time from each. What can be the least capacity of the big can.
Friday, July 15, 2016 by Agrajit

Math
Given that x and y are integers, then for the equation x+y= 2xy how many solutions are there?
Friday, July 15, 2016 by Nimish

Math
A tank, when one-fifth full, holds 75 litres of water. How many litres will it hold when full?
Friday, July 15, 2016 by Shanique

Math
In Mary class 9 children own cats, 7 children own dogs and own birds.What is the ratio of bird owners and cat owners in Marry class?
Friday, July 15, 2016 by Niraj

Math
There are 7girls in front of amarda and 3girls after her
Friday, July 15, 2016 by Anonymous

Math
There are 7girls in front of amarda and 3girls after her
Friday, July 15, 2016 by Anonymous

Math
Hello, can I please have help on how to find the area of a hexagon by knowing the apothem is 4 and the square root of 3? Thank you!
Friday, July 15, 2016 by Kai

math
in quadrilateral kite two equal angles are 70degrees and 80 degrees each . find other two angles.
Friday, July 15, 2016 by deepti

Math
The sound intensity of a soft whisper is about 1/200000 of the sound intensity of a shout. What is the decibel level of a whisper if a shout has a loudness level of about 85 dB? L = 10log(i1/10^-12)
Thursday, July 14, 2016 by Bob

Math
Write an equation for a log functions base 2 whose graph has the following properties: vertical asymptote of x=-6 Domain of x<-6 Passing through (-8,3)
Thursday, July 14, 2016 by Stacy

Strayer Math
Latoya ran for president of the chess club, and she received 18 votes. There were 40 members in the club. What percentage of the club members voted for Latoya?
Thursday, July 14, 2016 by Pearl

Math
A taco stand sells tacos with any three ingredients for a flat price of $1.25. Additional ingredients cost $0.50 each. There are ten different possible ingredients. How many different types of tacos costing $2.25 can be made at the stand? A. 160 B. 252 C. 345 D. 452 E. 610
Thursday, July 14, 2016 by Anonymous

Math
A taco stand sells tacos with any three ingredients for a flat price of $1.25. Additional ingredients cost $0.50 each. There are ten different possible ingredients. How many different types of tacos costing $2.25 can be made at the stand? A. 160 B. 252 C. 345 D. 452 E. 610
Thursday, July 14, 2016 by Anonymous

MATH
true or false: log (x-y) = log (x) - log(y) I don't know the the first part, but looking at the second part, wouldn't log (x) - log (y) = log x/y so based on that the first part is false?
Thursday, July 14, 2016 by Redgy

Math
A record playa with a speed of 33 1/3 revolutions per minute, meaning that a needle in a groove around te edge of the record will make 33 and 1/3 circuits around the record in one minute. If the diameter of the record is 40 centimeters, how many centimeters does the needle ...
Thursday, July 14, 2016 by Anonymous

MATH
if log_a 3 = log_b 27 then show that b=a^3 log_a mean log base a.
Thursday, July 14, 2016 by Anonymous

math
A isosceles right triangle has leg of 15. What is its area
Thursday, July 14, 2016 by jason

Math
Write an equation for a log functions base 2 whose graph has the following properties: vertical asymptote of x=-6 Domain of x<-6 Passing through (-8,3)
Thursday, July 14, 2016 by Stacy

Math
A record playa with a speed of 33 1/3 revolutions per minute, meaning that a needle in a groove around te edge of the record will make 33 and 1/3 circuits around the record in one minute. If the diameter of the record is 40 centimeters, how many centimeters does the needle ...
Thursday, July 14, 2016 by Anonymous

MATH
Suppose the annual expected mortality rate from coronary disease is 500 per 100,000 individuals. In a specific community of 600,000 individuals, how many deaths are expected to be attributed to coronary heart disease over a one year period? my work: 600,000/100,000=6 6x500= ...
Thursday, July 14, 2016 by Redgy

Math(help please)
Alexis has a pencil bag containing one of more of each of the following: red pens, blue pens, mechanical pencils, and black markers. He knows that there is a 4% chance he will pull a red pen out of the bag if he chooses randomly. What is the number of total pens, pencils, and ...
Thursday, July 14, 2016 by Anonymous

Math
Line a intersects line b, forming angles of 135 degrees and 45 degrees. A third line,line c, is perpendicular to line a and forms triangle ABC. What is the measure of the angle between lines b and c? a. 35 degrees b. 45 degrees c. 90 degrees d. 135 degrees e. Can't be ...
Thursday, July 14, 2016 by Gina

Math
equation log_b a = c. a) If 0 < a < 1 < b, what can you conclude about c? b) If a < 0 < 1 < b, what can you conclude about c? Please help !
Thursday, July 14, 2016 by Stacy

Math
Mr.Adams had a coin collection including only nickels, dimes, and quarters He had twice as many dimes as nickels and half as many quarters as he had nickels. If the total face value of his collection was $300.00, how many quarters did the collection contain? A) 75 B) 100 C) ...
Thursday, July 14, 2016 by Emily

MATH
What f-1(x) of f(x)=(1/3)^x
Thursday, July 14, 2016 by Anonymous

Math
Determine u⋅v if u =5, v =3,and θ =π/3 ,where θ is the angle between u and v. A) 7.50 B) 12.99 C) 10.61 D) 10.25 E) 9.05
Thursday, July 14, 2016 by Max

Math
On Feb. 27th, 2010, an earthquake of magnitude 8.8 occurred off the coast of Chile lasting up to 3 minutes. Five months later, a 2nd earthquake occurred with magnitude of 5.3. How much more intense was the first earthquake compared to the 2nd earthquake?
Thursday, July 14, 2016 by Chris

math
Given that Force 1 = 70 pounds and Force 2 = 120 pounds , find the angle between the forces if the magnitude of the resultant force is 90 pounds . Round answer to the nearest degree.
Thursday, July 14, 2016 by oleg

Math
If I travel 200 feet in 2.92 seconds what is speed I'm traveling at
Thursday, July 14, 2016 by Anonymous

Math
Mapping Notation for y=2log _3(-3x +9)-2 log_3 mean log base 3
Thursday, July 14, 2016 by Matt

Math
For what value of k will the following function have y-intercept of 5. log{base 3} (-5x +k^2)-1
Thursday, July 14, 2016 by Stacy

Math
After solve a function I get these X>_-1(greater than equal to) X>_3 & X>_2?what will be it's domain?
Thursday, July 14, 2016 by X

Math
In phythagorean triplet how to find numer 7
Thursday, July 14, 2016 by Monesh

Math
If a family plans to have four kids what is the probability that they will have at least one girl
Thursday, July 14, 2016 by Cathy

Math
Three dozen eggs, 25% broken. How many left? ( Answer with working outs) please.
Thursday, July 14, 2016 by Luciana Brix

math
a number rounds off to 4000.The digit in the hundreds place is twice the digit in the tens place.The sum of the digits is 12.The number uses only two different digits.Find the number.
Thursday, July 14, 2016 by rosemarie

math
What is the volume of a balikbayan box with a length of 21√5 inches, width of 12√3 inches and a height of a 25√3 inches? Thank youu!!
Thursday, July 14, 2016 by Ari

Math
When an object is droped from a certain height , it's distance from the starting point varies as the square of the time it has been falling . If a body falls through 288m in 6 seconds then what is the distance covered by the object in the tenth second?
Thursday, July 14, 2016 by Sarvesh

Math
If the battalion of soldiers is formed into a solid square,there would be sixteen fewer men in the front than there would be if they were formed into hollow square four deep. What is the required number of the soldiers.?
Thursday, July 14, 2016 by Nitesh

Math
The expenses of orphanage are party constant and partly vary as the number of the boys in the orphanage. The expenses were Rs. 10,000 for 150 boys and Rs. 8,400 for 120 boys . Find the expenses for 330 boys.
Thursday, July 14, 2016 by Madhura

Math
The ratio of a triangle's sides is 4:3:6. If the length of the hypotenuse is 1/4, what is the value of the length of the short leg of the triangle subtracted from the length of the long leg of the triangle? Help please?
Wednesday, July 13, 2016 by Jane

Math (PLEASE HELP!)
A ferris wheel has a radius of 13 m. It rotates once every 24 seconds. A passenger gets on at the bottom of the wheel from a ramp which is one metre above ground level. a) If the height of the passenger is measured from the ground, determine an equation for the height of the ...
Wednesday, July 13, 2016 by Anonymous

Math
Daniel drives 30 mph to the toy store and 45 mph back home, taking the same route both ways. If the total trip took two hours, how many total miles does he drive on the round-trip from home to the store and back? Can you please explain how to do it?
Wednesday, July 13, 2016 by Gina

Math (PLEASE HELP!)
How do you solve sin2θ−cosθ=0 between -pi/2 less than or equal to θ less than or equal to 3pi/2?
Wednesday, July 13, 2016 by Anonymous

math
The side of a triangle are in the ratio 2:3:4.If the shortest side measure 6cm,what is the perimeter of the triangle?
Wednesday, July 13, 2016 by pratikshya

Math (PLEASE HELP!)
A ferris wheel has a radius of 13 m. It rotates once every 24 seconds. A passenger gets on at the bottom of the wheel from a ramp which is one metre above ground level. a) If the height of the passenger is measured from the ground, determine an equation for the height of the ...
Wednesday, July 13, 2016 by Anonymous

Math
The Fahrenheit temperature of a certain city has never dropped below 50 degrees how would you describe this using Celsius temperature and has never dropped below how many degrees Celsius simplify your answer type an integer or decimal rounded to the nearest tenth as needed
Wednesday, July 13, 2016 by Carol

math
Felicia left Rome at 8am and drove her Ferrari at 8mph from Rome to Sorrento. she then took the boat to Capri for the day, returning to Sorrento 5 hours later. on the return trip from Sorrento to Rome she averaged 60mph and arrived in Rome at 8pm. How far is it from Rome to ...
Wednesday, July 13, 2016 by laiche

math
Robin flies to San Francisco from LA in 4 hours. she flies back in 3 hours. if the wind is blowing from the north at velocity of 20mph during both flights, what was the airspeed of the plane (it's speed in the air)?
Wednesday, July 13, 2016 by brat

math
show solution. in a certain eatery, there are 5 glass racks having 24 glasses and 8 left over. The answer says there are 130 glasses in all.
Wednesday, July 13, 2016 by shawn

Math
If a run is 10 feet and the slope 1% what is the rise?
Wednesday, July 13, 2016 by Mark

Math
A minor league baseball team plays 95 games in the season if the team won 15 more than three times as many games as they lost how many wins and losses did they the team have I need the losses
Wednesday, July 13, 2016 by Carol

math
solve (x-1) (d^2 y)/〖dx〗^2 +2dy/dx=0 using series method
Wednesday, July 13, 2016 by yusuph

math
Write 3.027 in expanded form
Wednesday, July 13, 2016 by Anonymous

Math
If 18 gallons of gas costs X dollars what is the expression to represent the cost in dollars of 3 gallons
Wednesday, July 13, 2016 by Angie

math
What is the height of a cylinder with a volume of 384π cubic inches and a radius of 8 inches? Round to the nearest tenth of an inch.
Wednesday, July 13, 2016 by anon

Math
Given that Force 1 = 70 pounds and Force 2 = 120 pounds , find the angle between the forces if the magnitude of the resultant force is 90 pounds . Round answer to the nearest degree. A) 48° B) 40° C) 53° D) 45° E) 60° I think it is answer B
Wednesday, July 13, 2016 by Katya

Math
Mrs. Kumar bought 27 apples. She bought 15 more oranges. How many oranges did she buy?
Wednesday, July 13, 2016 by Primary 1 Math

math
Find the slope of the line whose parametric equations are x=2-t and y=1=2t fi this line passes through (2,y) find the value of y compute also the value of t
Wednesday, July 13, 2016 by johnel

Math
A student was asked to divide a number by 12. Instead he divided the number by 24. In doing so he got a quotient which was 16 less than the original number. Which of the following cannot be the value of that number. A) 394 B) 398 C) 396
Wednesday, July 13, 2016 by Madhura

Math
1/11 of 132 Evaluate
Wednesday, July 13, 2016 by Kavi

math
a messenger traveling 65 miles per hour pursues a truck which has a start of 2 hours and overtakes it in 3 hours. find the truck speed.
Wednesday, July 13, 2016 by jessa

Math
The sum of two decimals is 100. Their difference is 18.50. What are the numbers?
Wednesday, July 13, 2016 by alzo

Math
A court is to be surrounded by plastic stripping 30m long. One side of the court does not need the stripping because it is a brick wall. What must be the dimensions of the court in order to obtain a maximum area? What is the maximum area? Thank you! :)
Wednesday, July 13, 2016 by Gennelle

Math
Find two numbers which have a difference of 7, and a product that is a minimum. Thank you! :)
Wednesday, July 13, 2016 by Gennelle

Math
laura spent 20 percent of her money on a dress. she spent 2/5 of the remainder on a book. she had $72 left. how much money did she have at first?
Wednesday, July 13, 2016 by Stephanie

math
find the value of k so that k-3,k+1,4k-2 form a geometric sequence.
Wednesday, July 13, 2016 by peejhay

math
A boy reaches his school 1.4km away in 1hr 40mins at what speed does he travels?
Wednesday, July 13, 2016 by karan

Math
Find a polynomial of degree 3 with real coefficients and zeros of -3, -1, and 4, for which f(-2) = 24.
Tuesday, July 12, 2016 by DeniseG

math
Are trigonometric functions taught in 11th grade, if so ,is it wrong that i wasn't tought that topic in 11th grade????plz help!!!!
Tuesday, July 12, 2016 by Lauren

Math
2x+9square root of x-5=0
Tuesday, July 12, 2016 by Anonymous

Math
Square 40 acres of land must be fenced and a rectangular 40 acres of land must also be fenced. Witch of the 2 will use more fencing?
Tuesday, July 12, 2016 by Reynhard

MAth
what is the greatest common factor of the terms of 24m^9-27m^7-24m^5
Tuesday, July 12, 2016 by Shyan

bus math
Solve the problem. Express answers as a percent rounded to the nearest tenth. 20) Complete a vertical analysis on the balance sheet for Jake's Janitorial Service for December 31 of last year. The company assets are cash $20,000, accounts receivable $48,000, merchandise ...
Tuesday, July 12, 2016 by damerius

math
A home with a market value of $320,000 is insured for $288,000 in a policy that contains an 80% coinsurance clause. Find the part of a loss due to fire that the insurance company will pay
Tuesday, July 12, 2016 by damerius

Math
Amy have 69 shells she put them into 8 groups how many shells are there? 8.625
Tuesday, July 12, 2016 by kate

Studying for math test
Multiply; then use fundamental identities to simplify the expression below and determine which of the following is not equivalent. (sin x + cos x) ^2 a. 1+2sinxcosx b. sec^2x−tan^2x+2cosxsinx c. sec x + 2 sin x/sec x d. sin^2x+cos^2x e. 1+2cos (pi/2 -x) cosx
Tuesday, July 12, 2016 by Lottie

Math
Calculate y' and y'' at the point (1,1) on the curve 5 xy^2+9 y-14 = 0 I got the first part (-5/19) but I can't get the answer for the second
Tuesday, July 12, 2016 by Ed

math
Emmanuel wants to tile his rectangular floor. one of which is larger than the other. a)what area will be covered by the "8x8"tile? "16x16" tile?
Tuesday, July 12, 2016 by Anonymous

Math - Studying for Pre Calc exam!
Approximate the solutions (to three decimal places) of the given equation in the interval (- pi/2, pi/2) 6 sin 2x − 8 cos x + 9 sin x = 6 Can you help with this please? I am studying for my Pre Calculus 1 exam and am stuck on this question...! The answer options are a. x...
Tuesday, July 12, 2016 by Lottie

math
Find the orthogonal trajectories of family of the circle x2+y2=a2 where a is a parameter
Tuesday, July 12, 2016 by mahesh

Math
Find all solutions of the given equation in the interval [0, 2pi) cos x/2 - sin x = 0 Hi, I am struggling with this question. Can anybody help me please? Thanks!
Tuesday, July 12, 2016 by Lottie

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