Friday
August 26, 2016

Homework Help: Math

Branches of Math

Recent Math Questions

Math please help!!
In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF such that AB=DE, BC=EF, and ∠A=∠D, then we cannot deduce that ABC and DEF are congruent. However, there are a few special ...
Tuesday, July 19, 2016 by Bob

math
if a cone is cut through the centre where it makes perpendicular to the vertex.what will be the surface area of the obtained half the cone
Tuesday, July 19, 2016 by kelvin

Math
Tia is investing $2500 that she would like to grow to $6000 in 10 years. At what annual interest rate, compounded quarterly, must Tia invest her money? Round your answer to two decimal places.
Tuesday, July 19, 2016 by Dw about it

Busn math
What is the whole number or simplified answer to 3/35 divided by 9/7
Monday, July 18, 2016 by Trace

N.E.S. math
Add.reduce the sum to lowest terms whenever possible 4/10+2/10+2/10
Monday, July 18, 2016 by Kendrick

Math
A rope of 17 1/2 feet long is cut into 7 pieces. If the pieces are the same length, what is the length of each piece?
Monday, July 18, 2016 by ?

math
Find the area of a square that has the same perimeter as a rectangle whose length is 48m and the ratio of length to the breadth is 3:1.
Monday, July 18, 2016 by Parben Alam Khan

Math
If an individual saves $5,700 and elects to place the total dollar amount into a savings account earning​ 2.75% APR compounded​ monthly, how much will the original deposit grow to in 12​ years?​
Monday, July 18, 2016 by Chuck

MATH
three consecutive terms of a geomentric progression series have product 343 and sum 49/2. fine the numbers. HOW WILL ONE SOLVE THAT? THANKS
Monday, July 18, 2016 by Archiebald

MAth
6sin^2(x) - 5sin(x) + 1 = 0 solve
Monday, July 18, 2016 by Anonymous

Math (PLEASE HELP!)
The function g(x) is a transformed image of the graph of f(x)=2^x. Write the equation of the transformed function g(x) in the form g(x)= b^x-h+k. f(x) (0,1) (2,4) g(x) (-1,2) (-3,-1)
Monday, July 18, 2016 by Anonymous

Math - Trig
Solve for exact or to 1d.p of x E [0 ,2pi] 4cos^2x-3
Monday, July 18, 2016 by Anonymous

math
Phone company A charges $20 per month plus $.15 per minute used. Phone company B charges $35 per month plus $.10 per minute used. Write and solve an equation to find the number of minutes you must use to have the same cost for both phone palns
Monday, July 18, 2016 by emma

Math
Hi, I have a question regarding simplifying the following expression: (1/x)/((1/3)x^(-2/3)) = 3/3sqrtx The last expression reads three over cube root of x. I don't understand how to get from the expression on the left side of the equal sign to the one on the right. Could ...
Monday, July 18, 2016 by Constantine

math
A spinner is divided into 8 equal parts. They are numbered 1-7 and the 8th has a star. What is the probability of it landing on the star?
Monday, July 18, 2016 by Mimi

math
In an interbarangay basketball league the team from barangay Culiat has won 12 out of 25 games a winning percentage of 48% .We have seen that they need to win 8 games consecutively to raise their percentage to at least 60%. What will be their winning percentage if they win 10 ...
Monday, July 18, 2016 by Queen

math
Prove that cos^6A+sin^6A=1/4(1+3cos^22A)
Monday, July 18, 2016 by raginichakravorty

Math
In an interbarangay basketball league the team from barangay Culiat has won 12 out of 25 games a winning percentage of 48% .We have seen that they need to win 8 games consecutively to raise their percentage to at least 60%. What will be their winning percentage if they win 10 ...
Monday, July 18, 2016 by Queen

MATH
A quiz consists of 90 multiple-choice questions, each with 4 possible answers (A, B, C and D). For someone who makes random guess , A is the correct answer for all the questions. If each right answer carries 4 marks and each wrong answer gives -1/4 marks, what probable marks ...
Monday, July 18, 2016 by ANUP

MATH 70
3 is less than or equal to y , and y is less than or equal to 4
Monday, July 18, 2016 by Anonymous

Math
How much pure antifreeze must be added to 18 liters of a 20% solution to make a 40% solution ?
Sunday, July 17, 2016 by Jesse

Math
A COMPANY CHARGES $20.00 PER DAY PLUS 64 CENTS A MILE YOU DRIVE 100 MILES HOW MUCH DO YOU OWE?
Sunday, July 17, 2016 by ALFRED

Math
ABC is an equilateral triangle with side length 4. M is the midpoint of BC, and AM is a diagonal of square ALMN. Find the area of the region common to both ABC and ALMN.
Sunday, July 17, 2016 by Bob

Math
If Jane walks North for 3 miles, turns 45 degrees to the right, and then walks another 4 miles, how many miles will Jane be from her starting point? Give your answer as a decimal rounded to the nearest hundredth. Plz help!!!!
Sunday, July 17, 2016 by Bob

Math
Two airplanes leave Dallas, Texas traveling in opposite directions. One is traveling 28 mph faster than the other airplane. How fast is the faster airplane traveling if the two airplanes are 2,320 miles apart after 2 hours and 30 minutes?
Sunday, July 17, 2016 by Mike

math
The region in the first quadrant bounded by the 𝑦-axis and the curve 𝑥 = 2𝑦2 − 𝑦3 (graph please) is revolved about the 𝑥-axis. Find the volume?
Sunday, July 17, 2016 by ANON

MATH
A quiz consists of 90 multiple-choice questions, each with 4 possible answers (A, B, C and D). For someone who makes random guess , A is the correct answer for all the questions. If each right answer carries 4 marks and each wrong answer gives -1/4 marks, what probable marks ...
Sunday, July 17, 2016 by ANUP

MATH
A quiz consists of 90 multiple-choice questions, each with 4 possible answers (A, B, C and D). For someone who makes random guesses for all of the answers, find the probability of getting A as right answer. A is the correct answer for all the questions
Sunday, July 17, 2016 by ANUP

Math
At 5:00 in the evening, a man who was 71 inches tall cast a shadow that was 163 inches tall. At the same time a flagpole cast a 756 inches shadow. How tall was the flagpole? Express your answer in two decimal places.
Sunday, July 17, 2016 by Jennifer

Math
The shorter edges of a 36 cm x 20 cm metalsheet are joined to form the vertical surfaces of a square base prism. What is the volume of the prism? what is the area of metal sheet required to make the top and the bottom of the prism.
Sunday, July 17, 2016 by John

math
In order for Mateo to walk 1000 meters in his rectangular backyard, he must walk the length 25 times or the perimeter 10 meters. What is the are of his backyard in square meters? Thanks!
Sunday, July 17, 2016 by Anonymous

math
A circle and two separate lines are sketched on a sheet of paper. What is the largest possible number of points of intersection of these 3 figures?
Sunday, July 17, 2016 by Anonymous

MAth
In one area of the Bay of Fundy, the tides cause the water level to rise to 7.2 m above average sea level and to drop to 7.2 m below average sea level. The time between the peak and the trough is approximately 6 hours. Determine the equation of a sinusoidal function that would...
Sunday, July 17, 2016 by Anonymous

MATH
A quiz consists of 90 multiple-choice questions, each with 4 possible answers (A, B, C and D). For someone who makes random guesses for all of the answers, find the probability of getting A as right answer.
Sunday, July 17, 2016 by ANUP

Math
The temperature is 12 degrees lower that 4 hours ago. Write an integer equation for the situation and what is the average temperature change per hour? 12/4= 3 3 degrees is the average temperature change per hour.
Sunday, July 17, 2016 by Grace

math
The difference between two natural numbers is 6.adding 10 to the twice of the larger number,we get 2 less than 3 times of the smaller number.find these numbers.
Sunday, July 17, 2016 by Faisal

math
In how many ways can a student select three couses from seven available courses?
Sunday, July 17, 2016 by Rashid

Math
Teo cars are 635 km apart.they start at the sane time and drive toward each other .The first car travels at a rate of 70 kph and the second car travels 57kph .In how many hours will the two hours meet??
Sunday, July 17, 2016 by Queen

math
If earth rotates at about 1000 mph and it rotates constantly each day. How many rotations will it complete after 4th hour, 8th hour and 24th hour.
Sunday, July 17, 2016 by gieian

Math
i am an even numbers. my hundreds place is five less than tens and my ones is even more than my hundreds. the sum of my numbers is what number i am? 12?
Sunday, July 17, 2016 by Sisi

Math
john wrote a three digit number on a piece of paper it is between 600 and 700 write down a number which john could possibly written
Sunday, July 17, 2016 by Anonymous

Math
2 groups of students in a shop. 1st group buys 4 hotdogs and 6 juices for $71. What are the prices of juices and hotdogs
Sunday, July 17, 2016 by Mizah

math
what percent of the two digit whole numbers are primes ?1.21 2.23 3.25 4.29? explain the ans
Sunday, July 17, 2016 by tasu

math
A salesman may draw a fixed salary of $10000 per month and a 2% commission sales or he can draw a fixed salary of $4000 per month and a 12% commission on sales.what volume of sales would he earn him the same amount of money in both rates??pls explain the answer
Sunday, July 17, 2016 by tish

math
let A be defined as the set of all two digit integers that are more than 20 and let P be defined as the set of all prime numbers .how many numbers are there that belong to both these sets? 1.13 2.17 3.21 4.25 explain the ans please
Sunday, July 17, 2016 by dany

math
A trained bulldog can run for 5 hours at a rate of 20 mph while it can run for for only 2 hours at a speed of 25 mph.the distance covered by running at the slower speed is what percent more than the distance covered by running at the faster speed?
Sunday, July 17, 2016 by tish

math
9x+3y-4z=35 x+y-z=4 2x-5y-4z+48=0
Sunday, July 17, 2016 by unni

math
A can finish a work in 24 days , B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days.The remaining work was done by A in ? any idea please i used work rate concept but i did not reach to the answer
Sunday, July 17, 2016 by kelvin

Math
A university had an enrollment of 8500 students in the tear 1995. Each year the enrollment increased by 350 students. What was the enrollment in the year 2000? How many students were enrolled from 1995 to 2000?
Sunday, July 17, 2016 by Lamby

math
what is the greatest common factor of the terms of 90x^6y^6+18x^4y^4+27x^2y^2
Sunday, July 17, 2016 by Anonymous

math
your report card comes out on the day the 8millionth second passes in the new (non-leap) year. what day is that?
Saturday, July 16, 2016 by Anonymous

Math
Find the surface area of the right prism with the given features: A right triangle with legs of length 12 a base of length 9 and height equals 23.
Saturday, July 16, 2016 by Jennifer

math
20 red marbles cost $3 while 40 green marbles are available at$4.how much would it cost someone to buy 10red marbles and 50 green marbles?
Saturday, July 16, 2016 by Rashid

math
If x^2-11x+3x<0 then which of the following could be the value of x?
Saturday, July 16, 2016 by Rashid

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

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