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July 24, 2014

July 24, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

1. An architect draws house plans for a client using the scale 1in= 4ft. How long shall the architect draw a wall that will be 22ft long Ans 5 1/2 in 2. If a coin is flipped 5 times, the probability of getting heads all 5 times is Ans 1/32 3. a bag of marbles contains 4 red, 3...
*Thursday, June 19, 2014 at 8:06am*

**Math**

Compare and contrast the solutions of ax^2 + h = 0 to the solutions of ax^2 = h, where a and h are positive.
*Thursday, June 19, 2014 at 5:57am*

**math**

find the value of sin 60degree/cos*cos 45degree- Cot 30degree+15cos90degree
*Thursday, June 19, 2014 at 5:17am*

**Math**

I am working on word problems and trying to figure this one out and need help. One mile is 5280 feet. Justin has a stride of 32 inches. How many steps will he take to run a 26 mile marathon? 5280 x 26 = 137,280 and I am stuck.
*Thursday, June 19, 2014 at 4:54am*

**math**

1. An architect draws house plans for a client using the scale 1in= 4ft. How long shall the architect draw a wall that will be 22ft long Ans 5 1/2 in 2. If a coin is flipped 5 times, the probability of getting heads all 5 times is Ans 1/32 3. a bag of marbles contains 4 red, 3...
*Thursday, June 19, 2014 at 12:06am*

**Math**

Victor bought a brand new car for P750,000. If the value of the car depreciates 20%per year, what will it be worth during the fourth year?
*Wednesday, June 18, 2014 at 9:01pm*

**Math**

1. What is the tenth term of the geometric sequence whose first term (a1) is 16 and the common ratio (r) is –½? 2. Given the terms a10 = 3 / 512 and a15 = 3 / 16384 of a geometric sequence, find the exact value of the first term of the sequence.
*Wednesday, June 18, 2014 at 8:59pm*

**Math**

How much will it cost to carpet a room that's 12ft by 15ft if the carpet cost $25 per square yard
*Wednesday, June 18, 2014 at 8:55pm*

**Math**

Given: ________, – 243, – 226, – 209, – 192, – 175, … The 67th term of the sequence is __________. The series of the first 27 terms of the sequence is __________.
*Wednesday, June 18, 2014 at 8:41pm*

**math please help**

Limit as x approaches zero of (sinx-(x^3/6)/x^5)
*Wednesday, June 18, 2014 at 7:50pm*

**Math**

Four coins fall onto the floor. Find the probability that (a) exactly three coins land heads up (b) all coins land tails up (c) two or more coins land heads up (d) no more than two coins land tails up (e) at least one coin lands tails up
*Wednesday, June 18, 2014 at 7:30pm*

**Math**

At this year's State Fair, there was a dice rolling game. If you rolled two dice and got a sum of 2 or 12, you won $20. If you rolled a 7,you won $5. Any other roll was a loss. It cost $3 to play one game with one roll of the dice. What is the expectation of the game?
*Wednesday, June 18, 2014 at 6:58pm*

**Math**

A 15 ft ladder is leaning against the wall. The top of the ladder reaches 10ft up the wall. What is the angle that the ladder makes with the ground?
*Wednesday, June 18, 2014 at 5:57pm*

**Math**

You start your shift as a cashier with your drawer containing ten $1 bills, 5 $2 bills, three $5 bills, one $10 bill and one $100 bill. Find the expectation if one bill is selected.
*Wednesday, June 18, 2014 at 5:55pm*

**math**

A group of friends consist of 3 girls and 5 boys. If that group of friends is separated into a group containing 1 girl and 2 boys, how many combinations of the original 8 friends could be made into the smaller group?
*Wednesday, June 18, 2014 at 5:34pm*

**Math**

While cleaning her dorm room, Monica mistakenly pushed three coins off the desk. When they land on the chair below, find the odds (a) in favor of getting exactly three heads (b) in favor of getting exactly three tails (c) against getting exactly two heads (d) against getting ...
*Wednesday, June 18, 2014 at 5:30pm*

**finite math**

A baseball player hit 59 homeruns in a season. Of the runs, 22 went to right field, 15 went to right center field, 8 went to center field, 8 went to left center field and 6 went to left field. What is the probability that a randomly selected home run went to left field.
*Wednesday, June 18, 2014 at 5:18pm*

**finite math**

A probability experiment was conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12}, event F= {6,7,}, and event G={9,10,11,12}. Assume that each outcome is equally likely. List the outcomes of F and G?. find P(F or G) by counting the number of ...
*Wednesday, June 18, 2014 at 5:16pm*

**finite math**

The probability that a 3-year old garter snake will reach 4 years old is 0.62719. (a) what is the probability that two randomly selected will reach 4 years old? What is the probability that five randomly selected 3 year old garter snakes will reach 4 years old?
*Wednesday, June 18, 2014 at 5:01pm*

**finite math**

Among 38-43 year old, 25% say they have written an editorial letter while under the influence of peer pressure. Suppose two 38-43 year old are selected at random. (a )what is the probability that at least one has not written under the influence of peer pressure. (b) what is ...
*Wednesday, June 18, 2014 at 4:57pm*

**math **

okay so I have to work out this problem for school work and I don't understand it. the problem is : if the perimeter of an isosceles triangle is 2x + 10, what is the length of one of the congruent sides ? PLEASE HELP ME !
*Wednesday, June 18, 2014 at 3:46pm*

**math**

a boy travels in a boat at an angle of 20 degrees to the river bank.if he travels 200m before reaching the opposite bank,calculate the width of the river
*Wednesday, June 18, 2014 at 1:52pm*

**math**

The number of students who attended the class from monday to saturday were consecutive integers the average number of students attending class from monday to wednesday is 34. find average number of students attending class from thursday to saturday
*Wednesday, June 18, 2014 at 11:34am*

**Math**

A number whose digit in the ten billions place is 5 less than 8
*Wednesday, June 18, 2014 at 9:37am*

**math**

I am a decimal between 2 and 3. The digit in my thousandths place is the sum of the digits in my tenths and hundredths place. The digit in my tenths place is the difference of the digits in my thousandths and hundredths place. The digit in my hundreths place is one less than ...
*Wednesday, June 18, 2014 at 9:32am*

**math**

Write an expression for the problem, then evaluate. Tickets for children in a carnival cost 150. A teacher of a class of 48 pupils gets for the whole class but only 43 pupils buy. Is it right for the teacher to say that she has 6,350 for the tickets of the children? Why
*Wednesday, June 18, 2014 at 7:56am*

**math**

an open box is to be formed out of a rectangular piece of cardboard whose length is 8 cm longer than its width to form the box,a square of side 4 cm will be removed from each corner of the cardboard then the edges of the remaining cardboard will be turned up.
*Wednesday, June 18, 2014 at 7:55am*

**math**

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. Is it right? Why?
*Wednesday, June 18, 2014 at 7:55am*

**math**

remove the irrationality in the denominator (i) 1/1+√2+√3
*Wednesday, June 18, 2014 at 7:22am*

**Math**

state whether each relation y=f(x) describes a quadratic function or not y=3-x^2
*Wednesday, June 18, 2014 at 6:35am*

**Math**

state whether each relation y=f(x) describes a quadratic function or not
*Wednesday, June 18, 2014 at 6:34am*

**math**

12x0x3x1
*Wednesday, June 18, 2014 at 5:00am*

**math**

8x12x0x3=
*Wednesday, June 18, 2014 at 4:56am*

**math**

How to solve first question using a t table please help answer question really stuck on wok new answers 19 or170 can you tell me which is right showing work please thank you whole lot - jessica ledesma
*Wednesday, June 18, 2014 at 2:56am*

**math**

At the faculty costume party , each teacher from Transylvania Middle school came dressed as his of her favorite creepy creature . The teachers arrived one at a time , and when a new teacher came in , each of the teachers already there lined up at the door and shook hands with ...
*Wednesday, June 18, 2014 at 2:39am*

**Math**

Prove the identity csc^2x = 2sec2x / sec2x - 1 Sorry i really tried. I got : LS = 1 - (cos^2x/sin^2x) but thats it. please help
*Tuesday, June 17, 2014 at 11:21pm*

**math**

un Lanes Bowling charges a fee of $4 to use their shoes and $6 for each game played. Salim wants to figure out how much it will cost him to bowl. Part 1: Write an equation representing this problem. Let x be the number of games bowled, and let y be the total cost. Part 2: Is x...
*Tuesday, June 17, 2014 at 11:08pm*

**finite math**

The probability that a randomly selected individual in a country earns more than 75,000 per is 10.5%. the probability that a randomly selected individual in a country earns more than 75,000 per year, given that the individual has earned a bacholer’s degree is 21.5%. The ...
*Tuesday, June 17, 2014 at 11:05pm*

**finite math**

Suppose that E and F are two events P(E and F)=0.1 and P(E)=0.4 what is P(F/E)?
*Tuesday, June 17, 2014 at 11:03pm*

**finite math**

8. Among 38-43 year old, 25% say they have written an editorial letter while under the influence of peer pressure. Suppose two 38-43 year old are selected at random. (a )what is the probability that at least one has not written under the influence of peer pressure. (b) what is...
*Tuesday, June 17, 2014 at 11:03pm*

**finite math**

The probability that a 3-year old garter snake will reach 4 years old is 0.62719. (a) what is the probability that two randomly selected will reach 4 years old? What is the probability that five randomly selected 3 year old garter snakes will reach 4 years old?
*Tuesday, June 17, 2014 at 11:01pm*

**finite math**

A golf ball is selected at random from a golf bag. If the bag contains 3 black balls, 8 orange balls, and 4 brown balls, find the probability of the event. That the golf ball will be black or orange.
*Tuesday, June 17, 2014 at 11:00pm*

**finite math**

Find the probability of P(E or F) if E and F are mutually exclusive P(E)=0.25 and P(F)=0.47
*Tuesday, June 17, 2014 at 10:59pm*

**math**

Lily designed a deck in her backyard that is in the shape of a quadrilateral that has only 1 pair of parallel sides. What is the shape of the deck?
*Tuesday, June 17, 2014 at 10:57pm*

**finite math**

A probability experiment was conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12}, event F= {6,7,}, and event G={9,10,11,12}. Assume that each outcome is equally likely. List the outcomes of F and G?. find P(F or G) by counting the number of ...
*Tuesday, June 17, 2014 at 10:56pm*

**finite math**

A baseball player hit 59 homeruns in a season. Of the runs, 22 went to right field, 15 went to right center field, 8 went to center field, 8 went to left center field and 6 went to left field. What is the probability that a randomly selected home run went to left field.
*Tuesday, June 17, 2014 at 10:55pm*

**finite math**

According to a certain countries 44.5% of 3 year olds are enrolled in daycare. What is the probability that a randomly selected 3 year old is enrolled in daycare.
*Tuesday, June 17, 2014 at 10:54pm*

**finite math**

Suppose a coin is tossed 100 times 57 heads and 43 tails what is the probability the next one will be heads.
*Tuesday, June 17, 2014 at 10:54pm*

**math**

Determine whether the system of equation is in row-echelon form. x-y+3z=-11 y+8z=-12 z=-2
*Tuesday, June 17, 2014 at 10:39pm*

**MATH**

what is answer of this problem set X={X/X IS A BOY}
*Tuesday, June 17, 2014 at 10:05pm*

**Math **

Use back substitution to solve the system of linear equations x-2y+z=8 y+z=5 z=2 **I tried to solve it eventho im still confused/lost. 1=3 idk ugh
*Tuesday, June 17, 2014 at 9:55pm*

**Math**

– 11 is the __________ term of the arithmetic sequence – 847, – 836, – 825, – 814, – 803, …
*Tuesday, June 17, 2014 at 9:54pm*

**Math**

Find the value of x so that 3x – 2, 2x – 1 and 4x – 3 form an arithmetic sequence.
*Tuesday, June 17, 2014 at 9:04pm*

**Math**

Black Eyed Peas’ 2011 Live Concert is to take place in a circular park. Due to the shape of the area, seats are set up so that the innermost row has 64 seats and each successive row has 17 more seats than the row before it. The park’s open area can accommodate 17 ...
*Tuesday, June 17, 2014 at 9:03pm*

**Math **

Hi, I needed help with this improper integral. lower limit : 2 upper limit : infinity integral of (lnx)/(x+1) dx Thank You so much :D
*Tuesday, June 17, 2014 at 8:54pm*

**Math**

Find the 12th term of the arithmetic sequence 2, 6, 10, … .
*Tuesday, June 17, 2014 at 8:47pm*

**Math**

Solve for the 101st term of the sequence whose 1st term is x-y and d=2x+y-3.
*Tuesday, June 17, 2014 at 8:46pm*

**Math**

The entire can needs to be painted, including the top and bottom. If the diameter of the lid (x) is 5 cm, and the height of the can (y) is 9 cm, what is the approximate total surface area that will need to be painted?
*Tuesday, June 17, 2014 at 8:08pm*

**MATH **

Solve the system of linear equations 2x+y-3z=4 4x+2z=10 -2x+3y-13z=-8 *im so lost (all these numbers are in one problem)
*Tuesday, June 17, 2014 at 7:51pm*

**math**

what is the vertex of y=x^2-4 ??
*Tuesday, June 17, 2014 at 7:00pm*

**math**

Shipping dimensions given by the distributor are 10 cm x 20 cm x 22 cm. What will you enter in ‘Shipping dimensions’ field in our system? Shipping dimensions = ?
*Tuesday, June 17, 2014 at 6:01pm*

**Math PLZ help me**

Hi, I needed help with this improper integral. lower limit : 2 upper limit : infinity integral of (lnx)/(x+1) dx Thank You so much :D
*Tuesday, June 17, 2014 at 5:34pm*

**Math**

The class with the greatest mean sales in a spring fundraiser will win a prize. The mean for Eric's class is $148. The mean for Natalia's class is $152. Natalia's sales total $150. If Natalia moves to Eric's class, the mean for each class increases. Explain why?
*Tuesday, June 17, 2014 at 5:02pm*

**finite math **

According to a certain countries 44.5% of 3 year olds are enrolled in daycare. What is the probability that a randomly selected 3 year old is enrolled in daycare. edited
*Tuesday, June 17, 2014 at 2:20pm*

**Math **

Write the quadratic function in standard form (if necessary) and sketch its graph. Identify the vertex. f(x)=x^2+3x+1/4
*Tuesday, June 17, 2014 at 2:15pm*

**Math**

A hair product company sells three types of hair products for $30, $20, and $10 per unit. In one year, the total revenue for the three products was $800,000, which corresponded to the sale of 40,000 units. The company sold half as many units of the $30 product as units of the...
*Tuesday, June 17, 2014 at 2:08pm*

**MaTh..**

Determine whether the system of equations is in row-echelon form. x-y+3z=-11 y+8z=-12 z=-2
*Tuesday, June 17, 2014 at 2:03pm*

**finite math**

Suppose that E and F are two events P(E and F)=0.1 and P(E)=0.5. what is P(F/E)?
*Tuesday, June 17, 2014 at 1:48pm*

**finite math**

Among 26-31 year old, 29% say they have written an editorial letter while under the influence of peer pressure. Suppose six 26-31 year old are selected at random. (a) that at least one has not written under the influence of peer pressure. (b) what is the probability of that at...
*Tuesday, June 17, 2014 at 1:47pm*

**finite math **

The probability that a 3-year old garter snake will reach 4 years old is 0.94461. (a) what is the probability that two randomly selected will reach 4 years old? What is the probability that five randomly selected 3 year old garter snakes will reach 4 years old?
*Tuesday, June 17, 2014 at 1:46pm*

**finite math**

A probability experiment was conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12}, event F= {3,6,7,}, and event G={9,10,12}. Assume that each outcome is equally likely. List the outcomes of F and G. find P(F or G) by counting the number of ...
*Tuesday, June 17, 2014 at 1:42pm*

**finite math**

A baseball player hit 54 homeruns in a season. Of the runs, 17 went to right field, 16 went to right center field, 8 went to center field, 8 went to left center field and 5 went to left field. What is the probability that a randomly selected home run went to left field.
*Tuesday, June 17, 2014 at 1:33pm*

**finite math**

According to a certain countries 43.8% of 3 year olds are enrolled in daycare. What is the probability that a randomly selected 3 year old is enrolled in daycare.
*Tuesday, June 17, 2014 at 1:32pm*

**finite math (probability**

suppose you toss a coin 100 times and get 57 heads and 43 tails. Based on the results what is the probability that the next toss will be head.
*Tuesday, June 17, 2014 at 1:28pm*

**math**

Mr. Simon landscapes new houses for a building contractor. He charges by the square meter of yard space plus a setup fee. He billed the contractor $2,150 for a 400-square- meter yard and $1,650 for a 300-square-meter yard. Write an equation in the form y = mx + b that can be ...
*Tuesday, June 17, 2014 at 12:54pm*

**math**

Evan is making a table that will be created in the shape of the figure below. The table top is a triangle attached to a rectangle. To purchase the right amount of paint, he needs to know the area of the table top. He can only spend $10 on paint, which is enough to cover 150 ...
*Tuesday, June 17, 2014 at 11:04am*

**math**

'a gardener plants an orchid with 5776 trees. in each row there were as many trees as the number of rows. find the number of rows'
*Tuesday, June 17, 2014 at 10:54am*

**math**

e. Felix Baumgartner is a daredevil famous for breaking the sound barrier during a freefall on October 14, 2012. Aided by a weather balloon, he climbed to a height of 128,100 feet. More than 24 miles in the air, he was so high up that he could see Earth’s curvature. He ...
*Tuesday, June 17, 2014 at 10:54am*

**Liberal Arts Math**

Marie sells magazine subscriptions. She earns $15 a week plus $3 for each subscription she sells. How many subscriptions must she sell to earn $90 in one week?
*Tuesday, June 17, 2014 at 10:43am*

**math**

Approximately how much principal would need to be placed into an account earning 3.575% interest compounded quarterly so that it has an accumulated value of $68,000 at the end of 30 years?
*Tuesday, June 17, 2014 at 9:59am*

**math apr **

A car with a sticker price of $42,650 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the nearest cent.) (b) Find the monthly payment if financed at 2.5% add-on interest for 60 months. (Round ...
*Tuesday, June 17, 2014 at 9:54am*

**math**

57865 - blank + 23129 = 48675
*Tuesday, June 17, 2014 at 8:41am*

**math**

57865-blank+23129=48675
*Tuesday, June 17, 2014 at 8:40am*

**math**

blank + 5277-9384=2240
*Tuesday, June 17, 2014 at 8:38am*

**math**

maria runs 7 miles in 80 minutes. At the same rate, how many miles would she run in 64 minutes
*Tuesday, June 17, 2014 at 6:33am*

**math**

Mike's number is 2000 more than Jerry's which is 400 less than Barry's. Larry's number is 1500 more than Sam's, which is 443. Sam's number is 60 less than Barry's. WHat is each boy's number?
*Tuesday, June 17, 2014 at 6:16am*

**math**

Mike's number is 2000 more than Jerry's which is 400 less than Barry's. Larry's number is 1500 more than Sam's, which is 443. Sam's number is 60 less than Barry's.
*Tuesday, June 17, 2014 at 6:13am*

**math**

limim bought 2.5 metres of cloth.Each dress used 3/4 metres. If she made 3 dresses, how much cloth was left.
*Monday, June 16, 2014 at 10:46pm*

**math**

Becky works 40 hours each week and makes $320. How much does she make per hour? Use a number line to solve this problem. I have a number line is labeled 0-320 but I cant seem to figure this one out.
*Monday, June 16, 2014 at 9:55pm*

**Math: Trig**

What is Arcsec(-2) equal to and how can you find the correct answer? I got 2pi/3 but it was marked wrong on my test and I'm not sure why it's wrong. Can you please explain this to me? Thanks!
*Monday, June 16, 2014 at 7:38pm*

**Math**

A spinner with 10 equal sections, numbered 1 to 10, is spun. Then a coin is flipped. What is the probability that the spinner will land on 3 and the coin will land on heads?
*Monday, June 16, 2014 at 5:45pm*

**MATH**

what is the integration of e^-|x| from negative infinity to x ?
*Monday, June 16, 2014 at 5:18pm*

**Math**

Evaluate the algebraic expression: 6x+2= 3x-4= 9x+6=
*Monday, June 16, 2014 at 4:22pm*

**Math**

Simplify: sin60/tan30
*Monday, June 16, 2014 at 4:00pm*

**math**

A bottle of water costs $1.50. Explain how you would make a graph of four ordered pairs to model the total cost of the water in terms of the number of bottles.
*Monday, June 16, 2014 at 10:04am*

**Math**

Find the equation of a line which passes through point P(10, 12) and // to y=x/2 + 4
*Monday, June 16, 2014 at 6:50am*

**math**

find the height in feet of a ball after 6 seconds in the air. after one second the ball is 148 feet in the air; after 2 seconds it is 272 feet in the air
*Monday, June 16, 2014 at 1:52am*

**math**

When four times the number is added to 7 times the number, the result is 33, what is the number?
*Sunday, June 15, 2014 at 9:30pm*

**Math**

1. Find the 12th term of the arithmetic sequence 2, 6, 10, … . 2. Solve for the 101st term of the sequence whose 1st term is x-y and d=2x+y-3. 3. In the sequence 2, 6, 10, … , what term has a value of 106?
*Sunday, June 15, 2014 at 9:02pm*

**Math**

Solve for the 101st term of the sequence: 6-p, 4+p, 2+3p, 5p, … .
*Sunday, June 15, 2014 at 9:01pm*

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