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December 21, 2014

December 21, 2014

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**math**

how to do you do missing digits to make each number sentence true
*Wednesday, August 21, 2013 at 5:13pm*

**Math (Finance)**

Can someone please help me with these questions? I do not know how to solve them. I need them by 4:00pm PST. Thanks in advance. Problem 6.19 Trigen Corp. management will invest cash flows of $772,380, $776,008, $982,094, $818,400, $1,239,644, and $1,617,848 in research and ...
*Wednesday, August 21, 2013 at 3:26pm*

**math**

wt is the input output of 40
*Wednesday, August 21, 2013 at 2:54am*

**Math**

Find an equation of the tangent line to the circle x^2+y^2=25 at the point (4,-3)
*Tuesday, August 20, 2013 at 11:44pm*

**MAth **

find equation of line which passes through the points (5,7) and (5,-8).
*Tuesday, August 20, 2013 at 11:03pm*

**math**

Use the formula t = (0.25) s1/2 to find the time t in seconds it will take a stone to drop a distance s of 200 feet. Round your answer to the nearest tenth of a second.
*Tuesday, August 20, 2013 at 11:03pm*

**math**

you have a full cylindrical glass of water that stands8inches tall and has a radius of1.5inches.if you pour the water into a larger cylindrical glass that stands12tall and has a radius of2.5inches,howmuchmore water would the larger glass be able to hold?nearest hundredth.
*Tuesday, August 20, 2013 at 10:29pm*

**math**

find the circumference of the circle.round to nearest hundredth.4.5ft
*Tuesday, August 20, 2013 at 10:17pm*

**Chemistry/lab math**

For an AST determination, 0.2 mL of serum was used. The change in absorbance (ΔA) was measured at 340 nm with a 3 mL reaction mixture. The initial reading was 0.54 A, the reading after 5 minutes was 0.32 A. Report the AST value in IU. Equation to use when time is other ...
*Tuesday, August 20, 2013 at 10:06pm*

**Chemistry/lab math**

I think I have these figured out correctly but I'm not sure if I might have converted in the wrong direction; The rate of the enzyme activity of a certain reaction is a. 0.0027 μmol/min/mL. Express it as __ μmol/min/L My answer: 2.7 μmol/min/L b. 15,000 &#...
*Tuesday, August 20, 2013 at 9:40pm*

**Math**

Twelve students sit for an exam which has a maximum score of 100. The average of twelve scores achieved by the students in the exam was 95. What is the minimum mark a student could have scored?
*Tuesday, August 20, 2013 at 9:26pm*

**math**

the measurement of an angle is 5times the measurement of its supplement.what is the measurement of the angle?
*Tuesday, August 20, 2013 at 9:06pm*

**math**

solve for x x-7/6=x+3/7
*Tuesday, August 20, 2013 at 8:43pm*

**Math**

How do I solve b+12<31 using an inverse operation?
*Tuesday, August 20, 2013 at 6:54pm*

**Math**

Describe the intervals on which the following function is continuous. If not continuous, state "where" the discontinuity occurs and state the TYPE of discontinuity. f(x)= (x^2-x-12)/(x^2-6x+8) I just don't understand how to find the intervals. Thanks~
*Tuesday, August 20, 2013 at 4:45pm*

**Math ASAP **

Volume of Prisms: Volume: 150 cubic inches Top Area: 10 square inches What is the height? {5-sided prism}
*Tuesday, August 20, 2013 at 4:09pm*

**math**

15. City Cellular purchased $28,900 in cell phones on April 25. The terms of sale were 4/20, 3/30, n/60. Freight terms were F.O.B. destination. Returned goods amounted to $650. What is the net amount due if City Cellular sends the manufacturer a partial payment of $5,000 on ...
*Tuesday, August 20, 2013 at 3:49pm*

**Math**

Jackson say he has an odd number of model car.he has 6 car on one shelf and 8 cars on another shelf.is jackson. Correct? Explaint
*Tuesday, August 20, 2013 at 3:30pm*

**math**

Who discovered the Worlds Smallest Glacier?
*Tuesday, August 20, 2013 at 2:33pm*

**Math**

Denise took a total of 80 calls on her shift at work today. Of those 80 calls, 55% were resolved, 15% escalated to a supervisor, and 10% required that a technician be sent out to the customer's house. What is the total number of calls that Denise resolved on her shift ...
*Tuesday, August 20, 2013 at 2:26pm*

**Math**

Find the intervals which proves that function is upward/increase. a) f(x)=1-x2 b) f(x)=x2-2x
*Tuesday, August 20, 2013 at 1:52pm*

**Math Help? Check my answers.**

Simplify 6 x 3 divide 3 - 1. Pre-Algebra? Answers: 2 3 5 6 My answer: 5
*Tuesday, August 20, 2013 at 1:25pm*

**Math**

How do you show your work with 0.39 * 0.03 = 0.0117
*Tuesday, August 20, 2013 at 12:54pm*

**business math**

Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 25/15/10 . What is the dollar amount of the trade discount?
*Tuesday, August 20, 2013 at 10:18am*

**math**

show that the altitudes of equivilent root3/2 of a side
*Tuesday, August 20, 2013 at 10:07am*

**Math**

After 150 thousand years, only 1/8 of the original amount of a particular radioactive waste will remain. The half-life of this radioactive waste is how many thousand years?
*Tuesday, August 20, 2013 at 9:23am*

**Math**

Raisin sell for $3.99 per pound. How much will 33 1/3 pounds of raisins cost?
*Tuesday, August 20, 2013 at 3:05am*

**Math**

For what positive integer n is 2n+3n+4n=nn?
*Tuesday, August 20, 2013 at 3:03am*

**Math**

If x and y are positive integers such that xy =8, what is the maximum possible value of x + y?
*Tuesday, August 20, 2013 at 3:00am*

**math**

Half of a third of x equals a fourth of y plus a fifth of y. If'x=27, what is the value of y?
*Tuesday, August 20, 2013 at 2:59am*

**Math**

A state creates license plates that each contain two letters followed by three digits. The first letter must be a vowel and duplicate letters and digits are allowed. How many different plates are possible?
*Tuesday, August 20, 2013 at 2:56am*

**math**

What percent of the first 50 positive integers contain no odd digits?
*Tuesday, August 20, 2013 at 2:55am*

**math**

If 1 bucket + 5 jars = 1 tub, and 3 buckets + 2 jars = 2 tubs, how many jars are equal to 1 tub?
*Tuesday, August 20, 2013 at 2:54am*

**Math**

Is IB Math Studies the same as Pre-Calculus? I heard that IB Math Studies is for students who have a low background in math. Is that right?
*Tuesday, August 20, 2013 at 2:02am*

**MATH**

For each of the following angles, find a coterminal angle with measure (theta symbol) such that 0 degrees is greater than or equal to theta symbol < 360 degrees. a) -100 degrees. I really do not understand how to work this problem and I need help
*Monday, August 19, 2013 at 10:50pm*

**Math**

For each of the following angles, find a coterminal angle with measure (theta symbol) such that 0 degrees is greater than or equal to omega symbol < 360 degrees. a) -100 degrees. I really do not understand how to work this problem and I need help.
*Monday, August 19, 2013 at 10:48pm*

**MaTh**

Need help with another word problem The swim team sold tickets to their skit night to earn money to go to the finals in another city that was 200 miles away. They sold 4 adult tickets for each child's ticket. If they sold 155 tickets, how many adults bought tickets? Is ...
*Monday, August 19, 2013 at 10:22pm*

**math - geometry**

Austin wants to sketch the graph of a circle represented by the given equation. (x - 4)2 + (y + 7)2 = 64 Using complete sentences, describe the steps used to sketch the circle on a coordinate grid
*Monday, August 19, 2013 at 9:39pm*

**math**

use the digits 3, 7, 1, 5 to write a number that rounds to each of the following; 2, , 3,500, 6,000, 7,400
*Monday, August 19, 2013 at 9:28pm*

**Math**

In Class A there are 80 the Boy to Girl ratio is 3 to 5. In Class B the boy to girl ratio is 3 to 2. If the 2 classes combined have an equal number o fboys and girls how many students are in class B?
*Monday, August 19, 2013 at 9:22pm*

**math**

On a 9-hour trip home from winter break, Mary was forced to drive on a stretch of highway that had a lot of construction. At first she had to go 55 miles per hour for a certain amount of time, but then she was able to go 65 miles per hour for the rest of the trip and in total ...
*Monday, August 19, 2013 at 9:18pm*

**math**

What two numbers between 40 and 50 that have a greatest common factor of 7, the digits of one number is the sum of 6, the digits of the other number is the sum of 13, what are the two numbers?
*Monday, August 19, 2013 at 9:12pm*

**math**

2(x-3/4)+3(x+2/3)+4(x-1/5)=9x+17
*Monday, August 19, 2013 at 8:15pm*

**math**

6 runners run in a 500 yard dash. Prizes are awarded for 1st, 2nd, and 3rd place. Assume there are no ties, how many different orders can the runners finish 1st, 2nd, and 3rd?
*Monday, August 19, 2013 at 8:08pm*

**Math**

The Product of 2 consecutive odd numbers is 783. What are the numbers?
*Monday, August 19, 2013 at 8:01pm*

**Math**

How do you express the quotient of 15 and y? Is it 15 over y
*Monday, August 19, 2013 at 7:55pm*

**Math**

Need help with word problem. Stan and Oliver have a lawn mowing business. If Stan earns $3.00 for every $1.00 that Oliver earns, how much is Oliver's share for the day that they earned $75.00? Stan 3x(1) & Oliver x x+3x(1)= 75 4x(1)= 75(1) Is the equation set up correctly?
*Monday, August 19, 2013 at 7:48pm*

**MaTh**

so it should be 3x-2 + x = 30 3x-2+2+x = 30+2 3x+x = 32 4x = 32 4x/4 = 32/4 x=8
*Monday, August 19, 2013 at 7:41pm*

**math**

6(x-1)=18x
*Monday, August 19, 2013 at 7:26pm*

**Math**

How do you express the quotient of 15 and y? Is it 15 over y?
*Monday, August 19, 2013 at 6:57pm*

**math (finance)**

can you help me with these questions and show me how to solve them??? PLEASE can you double check my answers. Problem 5.17 Your finance text book sold 49,000 copies in its first year. The publishing company expects the sales to grow at a rate of 21.0 percent for the next three...
*Monday, August 19, 2013 at 6:55pm*

**Math (Finance)**

can you help me with these questions and show me how to solve them??? PLEASE can you double check my answers. Problem 5.17 Your finance text book sold 49,000 copies in its first year. The publishing company expects the sales to grow at a rate of 21.0 percent for the next three...
*Monday, August 19, 2013 at 6:49pm*

**math**

if you drive for 3hours at 60mph and then for 2hours at 70mph,how far will you travel?
*Monday, August 19, 2013 at 6:42pm*

**math**

Assume the average height and weight of a female in your math class is 5'5" and 140 pounds. Use this information to write a variation equation then use it to find the weight of the female below if they had the same body type as the average female. Round answer to the ...
*Monday, August 19, 2013 at 6:31pm*

**MaTh**

I need help with a word problem. Stella's sock drawer contains 30 pairs of socks. There are 3 times less 2 the number of pink socks than blue socks. How many pairs of pink socks and blue socks does Stella have? 2-3x + x = 30, 2+2-3x + x = 30 +2, 4x/4 = 32/4, x=8, 8 blue & ...
*Monday, August 19, 2013 at 6:13pm*

**Math**

When a student sold an xbox on ebay for $153, she was charged a two part final value fee: 5.25% of the first $25.00 of the selling price plus 3.25% of the remainder of the sell price over $25.00. Find the fee to sell the xbox on ebay.
*Monday, August 19, 2013 at 2:08pm*

**Math**

(i dont know if i posted but im just doing it again just in case) A 17 foot pipe is cut into three sections. The longest section is three times as long as the shortest and the middle sized section is two feet longer than the shortest. Find the length of each section to the ...
*Monday, August 19, 2013 at 1:47pm*

**Math**

A 17 foot pipe is cut into three sections. The longest section is 3 times as long as the shortest and the middle sized section is 2 feet longer than the shortest. Find the length of each section to the nearest foot
*Monday, August 19, 2013 at 1:44pm*

**Math **

What is the unit vector in R^2 which makes an angle of π4 with both the x- and y-axes?
*Monday, August 19, 2013 at 6:52am*

**MATH**

Ned’s Sheds purchases building materials from Timbertown Lumber for $3,700 with terms of 4/15, n/30. The invoice is dated October 17. Ned’s decides to send in a $2,000 partial payment. By what date must the partial payment be sent to take advantage of the cash ...
*Sunday, August 18, 2013 at 4:39pm*

**math**

The relation {(2,11), (-9, 8), (14, 1), (5, 5)} is NOT a function when which ordered pair is added to the set? a. (8, -9) c. (0, 0) b. (6, 11) d. (2, 18)
*Sunday, August 18, 2013 at 2:27pm*

**math**

medical math guestion
*Sunday, August 18, 2013 at 1:42pm*

**math**

Karen and Wayne need to buy a refrigerator because theirs just broke. Unfortunately, their savings account is depleted, and they will need to borrow money in order to buy a new one. Sears offers them an installment loan at 15% (add-on rate). If the refrigerator at Sears costs...
*Sunday, August 18, 2013 at 1:36pm*

**Math 117b**

describes h(x), the height of a part of a rollercoster track,where x is the horizontal distance in feet from the center of this section of the track. The towers that support this part of the track are the same height and are 150 feet apart .Which is the best estiamate of the ...
*Sunday, August 18, 2013 at 1:28pm*

**Math Geometry**

Starting from the point (0,0), a grasshopper makes a series of leaps on the coordinate plane. The grasshopper's first leap takes her to (3,4). After a move which adds (x,y) to the grasshopper's coordinates, her next move adds either (x,y-1) or (x-1,y) to her ...
*Sunday, August 18, 2013 at 12:54pm*

**Algebra 1-Math**

There's a table that says Company A charges $0.36 plus 0.03. And Company B charges $0.06 per minute. The question Im having problems with are: How long is a call that costs the same amount no matter which company is used? Be sure to show your thinking?
*Sunday, August 18, 2013 at 11:57am*

**basic math**

Does 5+(11+8)=5+8+11 illustrate the commutative or associative property?
*Sunday, August 18, 2013 at 11:05am*

**math**

The Christmas Tree Store has a parking lot that will hold l,000 vehicles. 2/5 of the spaces are for cars. When you went to buy your tree, there were 200 cars and some trucks in the parking lot. The parking lot was 3/4 full. How many trucks were in it?
*Sunday, August 18, 2013 at 10:45am*

**Math**

What is the quotient of x+ 4/ x-1 / x^2 + x/x-1. A. x + 4 / x ( x + 1 ) B. x + 4 / ( x - 1 ) ^2 C. 1 / x D. x^2 + 4 x + 4 / 2 x My answer I pick was ( A.) What the sum of x / 3 x - 6 + 1 / 8 A. x / 24 ( x - 2 ) B. 1 + x / 3 x + 2 C. x / 24 x - 48 D . 11 x - 6 / 24 ( x - 2 ) ...
*Sunday, August 18, 2013 at 9:10am*

**math**

what is the solution for this problem $125,000 at 5.5% for 20 years =
*Sunday, August 18, 2013 at 3:41am*

**math**

Consider the experiment of drawing two cards from a deck in which all pictures cards have been removed and adding their values (with ace =1). A. Describe the outcomes of this experiment. List the elements of the sample space. B. What is the probability of obtaining a total of ...
*Sunday, August 18, 2013 at 1:38am*

**math**

Consider the experiment of drawing two cards from a deck in which all pictures cards have been removed and adding their values (with ace = 1). A. Describe the outcomes of this experiment. List the elements of the sample space. B. What is the probability of obtaining a total of...
*Saturday, August 17, 2013 at 11:36pm*

**math **

Rounding to the nearest thousands make me 8000.and the sum of my digit is 24. what number can i be?
*Saturday, August 17, 2013 at 11:36pm*

**Math**

Define bound and free variables?
*Saturday, August 17, 2013 at 9:18pm*

**Math**

n^3+2n is the multiple of 3 prove it by math induction method
*Saturday, August 17, 2013 at 9:16pm*

**Math**

Consider the experiment of drawing two cards from a deck in which all picture cards have been removed and adding their values (with ace = 1). A. Describe the outcomes of this experiment. List the elements of the sample space. B. What is the probabilit of obtaining a total of 5...
*Saturday, August 17, 2013 at 8:23pm*

**math**

A conical tent made of canvas has a base that is 26 feet across and a slant height of 14 feet. To the nearest whole unit, what is the area of the canvas, including the floor? Use 3.14 for p.
*Saturday, August 17, 2013 at 8:09pm*

**math**

Which situation can be modeled by tossing a coin three times? a. choosing which one of sixteen teams will win a tournament c. selecting a desk from thirty-six in a classroom b. deciding which English teacher of eight will win a trip to London d. picking one of six math teachers
*Saturday, August 17, 2013 at 7:10pm*

**Math**

In the equation (8a^5)/b, how would you bring the b to the numerator and get rid of it in the denominator?
*Saturday, August 17, 2013 at 5:14pm*

**MATH**

Starting from the point (0,0), a grasshopper makes a series of leaps on the coordinate plane. The grasshopper's first leap takes her to (3,4). After a move which adds (x,y) to the grasshopper's coordinates, her next move adds either (x,y-1) or (x-1,y) to her ...
*Saturday, August 17, 2013 at 4:06pm*

**Math**

Select the relation that is a function. a. {(21, 11), (21, 10), (21, 9), (21, 8)} c. {(-6, -5), (3, 2), (10, 8), (3, 3)} b. {(-2, -1),(5, -1), (16, 3), (-3, -9)} d. {(5, 10), (-3, 10), (-3, -10), (4, 7)}
*Saturday, August 17, 2013 at 3:17pm*

**MATH**

Suppose 81^x = 64. What is 27^{x+1}? Give me a clear explanation with the answer. Thanks! :)
*Saturday, August 17, 2013 at 2:41pm*

**Math**

The base of a triangle is (6h+16) centimeters. The height of the triangle (3h-8) is centimeters. Find the area of the triangle.
*Saturday, August 17, 2013 at 12:32pm*

**math**

The temperature in the evening was 68 degrees fahrenheit. The following morning, the temperature was 39 degrees fahrenheit. What is the difference between the two temperatures?
*Saturday, August 17, 2013 at 12:24pm*

**math**

5 hockey pucks and three hockey sticks costs $23. 5 hockey pucks and 1 hockey stick costs $20. How much does 1 hockey puck cost?
*Saturday, August 17, 2013 at 10:38am*

**math**

If you choose 1 scoop of ice cream from 12 flavors and any 1 topping from a choice of 8, how many different ice-cream sundaes can you make?
*Saturday, August 17, 2013 at 1:17am*

**math**

After a 15% pay raise, Scott Walker now earns $27,600. What was his salary before the raise?
*Friday, August 16, 2013 at 10:41pm*

**math**

4/57(x+8)=1/3
*Friday, August 16, 2013 at 9:37pm*

**math**

Given ABCD with A = (1,1),B = (4, 2), C = (4, 5), and D = (1, 4),what are the coordinates for Point D' if the y-axis is the reflecting line?
*Friday, August 16, 2013 at 4:45pm*

**Math**

If a boat uses 22 gallons of gas to go 63 miles how many miles can the boat travel on 66 gallons of gas
*Friday, August 16, 2013 at 3:29pm*

**Math**

56 is ______% of 125.
*Friday, August 16, 2013 at 10:07am*

**Math-Algebra**

How do I solve this equation? (m - 2) / 3 = -1
*Friday, August 16, 2013 at 2:55am*

**math**

Consider all three-digit numbers that are greater than the sum of the squares of their digits by exactly 543. What are the last three digits of the sum of these numbers?
*Friday, August 16, 2013 at 2:19am*

**math**

A television set listed at $160 is offered at a 12 1/2% discount during a store wide sale. If an additional 3% is allowed on the net price for payment in cash, how much can Josh save by buying this set during the sale for cash ?
*Thursday, August 15, 2013 at 11:16pm*

**math help**

A gear with 20 teeth revolving at 200 revolutions per minute is meshed with a second gear turning at 250 revolutions per minute. How many teeth does this gear have ?
*Thursday, August 15, 2013 at 9:11pm*

**math**

Two boys weighing 60 pounds and 80 pounds balance a seesaw. How many feet from the fulcrum must the heavier boy sit if the lighter boy is 8 feet from the fulcrum ?
*Thursday, August 15, 2013 at 9:09pm*

**math**

The local pizzeria is advertising a special where you can get a large pizza with up to 3 different toppings for only $10. If the pizzeria offers 11 different toppings, how many different types of pizza can you get in this special deal?
*Thursday, August 15, 2013 at 8:45pm*

**Business Math**

Three of every seven sales transactions at Dollar Discount are on credit cards. What percent of the transactions are NOT credit card sales? (Round percentages to the nearest tenth.)
*Thursday, August 15, 2013 at 7:48pm*

**math**

If 7 3/4 dozen 1/2" connector fittings cost $31.00, what is the cost per dozen?
*Thursday, August 15, 2013 at 7:38pm*

**math**

a rectangle with a perimeter 70 feet can have an area of 150 ft^2. use A(x) to demonstrate this fact algebraically and graphically.
*Thursday, August 15, 2013 at 7:17pm*

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