Wednesday

January 28, 2015

January 28, 2015

**Branches of Math**

**Recent Math Questions**

Post a New Question | Current Questions

**Math ques2**

how do you get the range for grouped data that has open ended intervals?
*Sunday, January 25, 2015 at 3:33am*

**Math**

1. If the point (-3,30) is on the graph y=(x-1)^2+14, where will the point be on y=(x-8)^2-6? I don't understand what this is asking and how I can find this. 2. A rental business charges $12 per canoe and averages 36 rentals a day. For every 50-cent increase in rental ...
*Sunday, January 25, 2015 at 12:37am*

**Math .Static**

Consider two events A and B in the same sample space such that P(A)=0.4 and P(B)=0.3. Then A and B are mutually exclusive. True or False
*Saturday, January 24, 2015 at 10:59pm*

**Math**

1. "A bacteria population doubles in number every 3 hours. If there are 40 individuals now, how many in 24 hours?" SO I used the geometric series sum formula, with n=8(24/3=8), t1=40, and r=2, but I got 10200 as the answer, instead of what the answer key solves as ...
*Saturday, January 24, 2015 at 10:40pm*

**math**

The quadratic equation frequently appears in both the equilibrium and acid-base sections of General Chemistry. Therefore, it is useful to refresh the use of the quadratic before applying it to chemistry questions. Which of the following answers is a viable solution to the ...
*Saturday, January 24, 2015 at 10:39pm*

**math **

2x2 + 8x + 3 = 0
*Saturday, January 24, 2015 at 10:25pm*

**MATH Fractions**

I have two marbles. 1/6is blue. How many marbles do I have
*Saturday, January 24, 2015 at 10:08pm*

**Math**

True or false and if false write a true statement 1. A right triangle has three right angles. 2. A triangle that has three sides of the same length is an equilateral triangle. 3. An obtuse triangle has two angles that are acute. 4. In a right triangle the two angles that are ...
*Saturday, January 24, 2015 at 8:01pm*

**Math**

Suppose an object is dropped from a height h0 above the ground. Then its height after t seconds is given by h = −16t 2 + h0, where h is measured in feet. Use this information to solve the problem. A ball is dropped from the top of a building 59 ft tall. (Round your ...
*Saturday, January 24, 2015 at 7:55pm*

**math**

If p pencils cost d dollars, how many pencils can be bought for c cents?
*Saturday, January 24, 2015 at 5:29pm*

**Math**

Atop 50m tower, Jack sees smoke in two areas. One is on a bearing of 40degrees with an angle of depression of 8degrees, and the other on a bearing of 205degrees with and angle of depression of 13degrees. How far apart are the smoke sources? I'm not sure how bearings work ...
*Saturday, January 24, 2015 at 5:05pm*

**math**

At c cents per pound, what is the cost of a ounces of salami?
*Saturday, January 24, 2015 at 4:57pm*

**math**

A piece of fabric is cut into three sections so that the first is three times as long as the second and the second is three times as long as the third. What part of the entire piece is the smallest section?
*Saturday, January 24, 2015 at 4:55pm*

**math**

If 60 feet of uniform wire weighs 80 pounds, what is the weight of 2 yards of the same wire?
*Saturday, January 24, 2015 at 4:49pm*

**Math**

George is making a permanent for his favorite baseball team. He wants the short edge to be 14 inches and the height in the middle of the right triangle to be 24 inches. What is the length of diagonal side AB?
*Saturday, January 24, 2015 at 4:36pm*

**Math**

Q1.A tree was chopped by the Samuels family for the holidays. How tall was the tree originally if the piece they chopped down was 7feet tall, and fell 4 feet from the stump? Q2. Mr pratt's rake is leaning up against a wall. If the top of the rake hits the wall 5 feet above...
*Saturday, January 24, 2015 at 3:41pm*

**Math**

Hi! Can someone help me with these? I just learned about them yesterday but I'm really confused. All my teacher wants me to do is solve each equation and that's all the directions she gave. Thanks so much! 1.) 3cot^2 x-1=0 Location on Unit Circle: Period: General ...
*Saturday, January 24, 2015 at 3:32pm*

**Math**

Cannon wants to make a garden with a border of his yard. He has lumber in several different lengths. Which three lengths could be used to make a right triangle to fit into the corner of his yard? A. 4ft.,6ft.,10ft. B.7ft.,12ft.,15ft. C.5ft.,12ft.,13. D.10ft.,15ft.,20.
*Saturday, January 24, 2015 at 3:27pm*

**Math**

how could you change one of the squares so that a right angle would be created
*Saturday, January 24, 2015 at 3:10pm*

**math**

my sun in thea 1st grade me no understand to much english i need very much help what is 9+10=??? me having very hard time help asap
*Saturday, January 24, 2015 at 2:39pm*

**Math**

What simplified common fraction is equivalent to 0.05757575757
*Saturday, January 24, 2015 at 2:11pm*

**math**

if I save 3200 for 40 years with 9% interest rate how much will I have saved
*Saturday, January 24, 2015 at 11:15am*

**Math**

Check my math please... is the probability of three events with the following individual probs: 1/161x10/100x20/100=0.00012; and that is a 0.012% (1.2%) chance? Thanks
*Saturday, January 24, 2015 at 9:42am*

**math**

what are the next four of the sequence represented by the expression 3n+5?
*Saturday, January 24, 2015 at 8:41am*

**Math**

Hi! Can you check my answers to this worksheet? They're the only questions I'm not positive about my answers on. 1. Compared to its parent function, describe the transformation of the following: y = -x3 + 2 A. Reflected with respect to x-axis, moved up 2. B. Reflected ...
*Saturday, January 24, 2015 at 7:17am*

**math**

Perimeter of rectangle and a square are equal. Perimeter of the square is 96 cm and breadth of the rectangle is 4 cm less than the side of the square. Then two times the area of the rectangle is
*Saturday, January 24, 2015 at 3:19am*

**math**

A box with a square base and no top is to be made from a square piece of cardboard by cutting 4-in. squares from each corner and folding up the sides, as shown in the figure. The box is to hold 324 in3. How big a piece of cardboard is needed?
*Saturday, January 24, 2015 at 12:41am*

**math**

According to the US Bureau of the Census, the world population in the year 1950 was A=2555360972, and in 2000 it was B=6079006982. We'll use A and B so we don't have to keep writing those large and idiosyncratic numbers. We usually use y and x in the equation of a line...
*Friday, January 23, 2015 at 10:32pm*

**business math**

The French company has a beginning inventory of $77,000 and an ending inventory of $80,000. sales were $280,000. assume French's markup rate on the selling price 40%. based on the selling price what is the inventory turnover at cost. please explain?
*Friday, January 23, 2015 at 10:24pm*

**math**

Thank you for you help. The pie chart below shows how the total annual income for a certain family is spent. If the total annual income is 110,000 , what amount is budgeted for Savings, Housing, and Auto combined? Saving is 18%, housing is 21% and auto is 13% combined. after ...
*Friday, January 23, 2015 at 10:11pm*

**math**

The next three problems explore some techniques of data analysis. According to the US Bureau of the Census, the world population in the year 1950 was A=2555360972, and in 2000 it was B=6079006982. We'll use A and B so we don't have to keep writing those large and ...
*Friday, January 23, 2015 at 9:44pm*

**math**

A new apartment building was sold for $125000 4 years after it was purchased. The original owners calculated that the building appreciated $3000 per year while they owned it. Find a linear function that describes the appreciation of the building, if x is a number of years ...
*Friday, January 23, 2015 at 9:36pm*

**Math**

Find the diameter of a circle with a circumfrence of 50 mm. Round your answer to the nearest tenth. A. 16.0mm B. 26.4mm C. 8.4mm D. 33.5mm Is the answer C? Thank you
*Friday, January 23, 2015 at 9:27pm*

**Math**

Find the area of the given circle.Round to the nearest tenth. The diameter of the circle is 12 feet. A.11.0 ft^2 B.38.5 ft^2 C. 42.8 ft^2 D. 113.20 ft^2 Is the answer D? Thank you
*Friday, January 23, 2015 at 9:22pm*

**Math**

Find the circumfrence of the given circle. Round to the nearest tenth. The radius of the circle is 3.5 cm. A. 22.0 CM B. 28.5 CM C. 11.0 CM D. 42.8 CM Is the answer A? Thank you
*Friday, January 23, 2015 at 9:15pm*

**math**

MR NASH GAVE EACH STUDENT 2 PENCIL AND HE HAD 10 PENCIL LEFT. HAVE MANY STUDENT WAS IN A GROUP?
*Friday, January 23, 2015 at 9:14pm*

**Math**

How do I figure up how many days these hours equal up to? Ytd=40.00. Used=8.00. Available 148.00 Ytd=80.00. Used=72.00. Available 8.00
*Friday, January 23, 2015 at 8:18pm*

**applied math**

You are wallpapering a 10-foot long wall. The wall is 10 feet high, and without doors and windows. The solid-colored wallpaper you've selected is 30 inches wide and comes in 20-foot rolls. How many widths of paper will it take to cover the wall? How many rolls of wallpaper...
*Friday, January 23, 2015 at 8:08pm*

**Math Help**

Mr Timely drove 19 miles to his office in 1/2 hour. What was his average driving speed in miles per minutes? Express your answer as a common fraction.
*Friday, January 23, 2015 at 7:40pm*

**Math**

THE POINT (8,-3)LIES ON THE CURVE Y=3/(7-X) (a)IF Q IS THE POINT (x,3/(7-X)) USE YOUR CALCULATOR TO FIND THE SLOPE OF THE SECANT LINE PQ CORRECT TO SIX DECIMAL PLACES FOR THE VALUE OF X. (i)7.9 Mpq? (ii)7.99 mPQ? (iii)7.999Mpq? (iV)7.9999 MPQ?
*Friday, January 23, 2015 at 7:04pm*

**math**

The consumers will demand 32 units when the price of a product is $59, and 50 units when the price is $42. Find the demand function (express thr price p in terms of the quantity q), assuming it is linear.
*Friday, January 23, 2015 at 6:58pm*

**business math**

It costs $5,600 to manufacture a Jet Ski. If the desired percent markup based on cost is 48%, how much should each Jet Ski sell for?
*Friday, January 23, 2015 at 6:46pm*

**math**

The employment percentages for men versus women in a computer company last year were 80% and 40%, respectively. At the beginning of this year, they had 150 men and 60 women currently hired. The owner of the company wishes to check their hiring practices and ensure that the ...
*Friday, January 23, 2015 at 6:17pm*

**math**

Ron ran 450 meters round a track in 3 minutes. What was his average running speed in km/h?
*Friday, January 23, 2015 at 5:36pm*

**Math**

A triangle is graphed in the coordinate plane. The vertices of the triangle have coordinates (5, 1), (1, 1), and (1, 7). What is the perimeter of the triangle? 28 24 14---- my answer 10
*Friday, January 23, 2015 at 5:19pm*

**Math (factors and products)**

for what integral value(s) of K can the trinomial x^2 + kx +12 be factored? my English is limited, I not sure what the question is asking, can everyone help me? Thank You!
*Friday, January 23, 2015 at 5:19pm*

**math**

Determine the value of k in y=kx^2-5x+2 that will result in the intersection of the line y=-3x+4 with the quadratic at a) two points (1 mark) b) one points (1 mark) c) no point (1 mark)
*Friday, January 23, 2015 at 5:15pm*

**Math**

i have a qusetion i really tried my best if a number is on a number line such as 6 what is its opposite is it 12 since 6+6 is 12?
*Friday, January 23, 2015 at 5:01pm*

**math**

The distance between -2 and 4 on the number line can be found by which expression?
*Friday, January 23, 2015 at 4:45pm*

**math**

For what value of b will the line y=-2x+b be tangent to the parabola y=3x^2+4x-1 ? (Show your work - 2 marks)
*Friday, January 23, 2015 at 4:36pm*

**math**

Please Help!!! Ben needs to buy orange juice. He can buy 64fl oz at the grocery store for $2.00, or he can buy 256 fl oz at the wholesale club for 7.50. find the unit price for the wholesale club orange juice: round your answer to the nearest thousandth . Find the unit rate ...
*Friday, January 23, 2015 at 3:54pm*

**Math**

Find a way to estimate the time to flip a coin 10,000 times; 100,000 times.
*Friday, January 23, 2015 at 3:43pm*

**Math (Statistics)**

What causes experimental probability to match theoretical probability?
*Friday, January 23, 2015 at 3:42pm*

**math**

What is the value of the 30th term in the following arithmetic sequence? 12, 6, 0, -6, ...
*Friday, January 23, 2015 at 3:41pm*

**math**

For what value of b will the line y=-2x+b be tangent to the parabola y=3x^2+4x-1 ? (Show your work - 2 marks)
*Friday, January 23, 2015 at 3:12pm*

**math**

The UV index on a sunny day can be modeled by the function f(x)=-0.15(x-13)^2+7.6 where x represents the time of day on a 24-h clock and f(x) represents the UV index. At what time(s) was the UV index 7? (2 marks)
*Friday, January 23, 2015 at 3:05pm*

**math**

Write the ratio has a unit rate 8 meters to 10 seconds 1)0.8 meter per second 2)1.125 meters per second 3)2 meters per second 4)80 meters per second
*Friday, January 23, 2015 at 3:04pm*

**math**

the distance that a body falls through when dropped from a certain height varies directly with the square of the time of fall. A body falls through a total of 500m in 10 seconds. find the distance it falls through, in 9th second (in m) Please help me solve this
*Friday, January 23, 2015 at 2:37pm*

**Math**

Hi! If someone can help me with these, that would be great! Thanks! Directions: Solve each equation. 1.) 2cosx+sqrt2=0 Location on Unit Circle: Period: General Solution: 2.) 3cot^2x-1=0 Location on Unit Circle: Period: General Solution:
*Friday, January 23, 2015 at 2:03pm*

**math**

Emma is using connecting cubes to make a rectangular model with a height of one connecting cube. With her cubes she can make the model in exactly 3 different ways. If Emma has more than 12 but fewer than 17 cubes, how many cubes does she have?
*Friday, January 23, 2015 at 1:38pm*

**math**

Solve the system of equations by elimination. (2 marks) y=2x^2-2x-3 y=-x^2-2x-3
*Friday, January 23, 2015 at 1:29pm*

**math**

suppose a sample of 2404 tenth graders is drawn.Of the sampled, 601 read at or below the eighth grade level. using the data, construct the 98% confidence interval for the population proportion of tenth graders reading at or below the eighth grade level.
*Friday, January 23, 2015 at 12:54pm*

**math**

Can you check my answers? A box of crackers has 24 grams of fat. The box contains 8 servings. What is the unit rate? 1)16 grams of fat per serving 2)8 grams of fat per serving 3)4 grams of fat per serving 4)3 grams of fat per serving I chose 4 A 16-fl oz bottle of juice cost 2...
*Friday, January 23, 2015 at 11:56am*

**math**

Suppose babies born in a large hospital have a mean weight of 3181 grams, and a standard deviation of 526. If 97 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would differ from the population mean by greater ...
*Friday, January 23, 2015 at 11:43am*

**math( ratios)**

which ratio is equivalent to 3/7? 1)6 to 10 2)9:21 3)12/35 4)7 to 3
*Friday, January 23, 2015 at 10:59am*

**Math (Statistics)**

Hi! Can someone help me with these two questions? Thanks a bunch! :) 1.) What causes experimental probability to match theoretical probability? In theory heads and tails occur 50/50. 2.) Find a way to estimate the time to flip a coin 10,000 times; 100,000 times.
*Friday, January 23, 2015 at 9:18am*

**math**

which is better 1 ticket for 5.00 or 8 tickets for 5.00 to win
*Friday, January 23, 2015 at 9:08am*

**math**

When Nikita sold her old two wheeler vehicle she got Rs 17150 after paying her agent 2% commission. What is the selling price of the vehicle.
*Friday, January 23, 2015 at 9:06am*

**Math**

Which of the following describes an exponential growth? a. a population grows 5% each year b. the area of a square of side s c. the cost of an apple per kilogram d. the height of a person with respect to his age. Is A the right answer?
*Friday, January 23, 2015 at 8:05am*

**Math**

Complete the table of values for the function y = 4(1^x/2)^x: x -3 -2 -1 0 1 2 3 y ___ ____ _____ ____ ____ ____ __
*Friday, January 23, 2015 at 8:04am*

**math**

Determine the sum of the folowing series 2+6/7+18/49+...+2(3/7)^8
*Friday, January 23, 2015 at 5:21am*

**math**

the distance that a body falls through when dropped from a certain height varies directly with the square of the time of fall. A body falls through a total of 500m in 10 seconds. find the distance it falls through, in 9th second (in m) Please help me solve this
*Friday, January 23, 2015 at 1:24am*

**6th grade math**

how can i put fractions and decimals in greatest to least or least to greatest?
*Friday, January 23, 2015 at 1:22am*

**ENGLISH**

1.Is the group of words a simple sentence, a compound sentence, a run-on sentence, or a sentence fragment? Her computer has new software, it runs much faster now. A. run-on sentence B. sentence fragment** C. compound sentence D. simple sentence 2.Is the group of words a simple...
*Friday, January 23, 2015 at 1:00am*

**Math**

Identify the solution(s) of the system of equations, if any. x + 5y = 7 4x - 5y = 13
*Friday, January 23, 2015 at 12:04am*

**Math**

Theo drove a slow car 996 miles to Oregon last spring and used a total of 40 gallons of gasoline. what was the average miles driven per gallon of gasoline? Do I divide 40/996 to get this answer?
*Thursday, January 22, 2015 at 11:24pm*

**Math**

Three consecutive integers are such that the sum of the largest number and 2 times the middle number is 27 more than twice the smaller number
*Thursday, January 22, 2015 at 11:23pm*

**Math**

You decide to start a cool craft project using orange cord. You need to cut 15 pieces of cord, each 32 inches long. How many feet of cord do you need to purchase for the project? Do I multiple for this answer?
*Thursday, January 22, 2015 at 11:18pm*

**Math**

preparing to make 4 white tents you discover each one will require 2.5 square yards of silk. If each square yard of silk costs $4.00, how much will it cost to make all the tents? Do I multiple 2.5 times $4.00 to get the answer?
*Thursday, January 22, 2015 at 11:14pm*

**Math**

You find out your faucet is leaking 10 pints of water every 3 hours. After 6 hours, how many gallons of water will have leaked from the faucet? How do I solve this problem?
*Thursday, January 22, 2015 at 11:11pm*

**Math**

The temperature one spring day was 78 degrees. Starting at 1:15 pm the temperature drops 0.25 degrees per minute. What temperature will it be at 1:25 pm? Do I divide 0.25/1:25 to get the answer?
*Thursday, January 22, 2015 at 11:00pm*

**math**

Summers garden is rectangle.4m long &2m wide she wants to put a fence around it.the fence post should be 2 m apart.How many fence post will Summer needs?
*Thursday, January 22, 2015 at 10:56pm*

**Math**

the chocolate pie recipe needs 4 cups of flour, 4 eggs and 1.5 cups of water. to double the recipe, 30% more water should be added. How many cups of water should be added to double the recipe? How do I solve this one?
*Thursday, January 22, 2015 at 10:34pm*

**math: ratios**

By the end of the year Kieran's savings is 9/2 of Simon's savings. a) what is the ratio of Kieran's savings to their total savings? b) how manytimes the total amt of money saved is Kieran's savings? c) how many times the total amt of money saved is Simon's ...
*Thursday, January 22, 2015 at 10:21pm*

**math**

good evening, he pie chart below shows how the total annual income for a certain family is spent. If the total annual income is 140,000 , what amount is budgeted for Auto, Insurance, and Entertainment combined? Auto,12%, ins 10% and enter is 13%. I know the three are 35 do I ...
*Thursday, January 22, 2015 at 9:54pm*

**math**

John had mangoes. He ate 5 and shared the remaining among her 6 friends. He however found that he needed 2 more mangoes if each of the friends was to get 4 mangoes. How many mangoes had he at the beginning?
*Thursday, January 22, 2015 at 9:34pm*

**Math please, please help**

Charlotte is planning a trip from her house in City A to the State Fair in City B. She uses 2 maps, each with a different scale & places them together so that they show her route. First map's scale is 2 3/4 inches with 3/4 inch equaling 30 miles. Second map's scale is ...
*Thursday, January 22, 2015 at 9:14pm*

**math**

A balanced coin is tossed 12 times and heads appears each time. What is the probability that tails will appear on the next toss?
*Thursday, January 22, 2015 at 9:13pm*

**math**

Lin borrowed $950 for a new laptop. She will pay $25.80 each month for the next 48 months. Find the simple interest rate for her loan. (Rounded to the nearest 10th of a percent.)
*Thursday, January 22, 2015 at 8:48pm*

**MAth**

The pumpkin pie was sliced into 6 equal peices After 1 piece was taken what was the fraction of the pie left?
*Thursday, January 22, 2015 at 8:47pm*

**math**

TJ had a car loan for $5800. Over the course of the loan, he paid a total of $1508 in interest at a rate of 6.5%. Over how many months did TJ pay off the car loan?
*Thursday, January 22, 2015 at 8:46pm*

**math**

a gear on a bicycle has the shape of a circle one gear has a diameter of 4 inches and a small one has a diameter of 2 inches Justin says that the circumferences of the larger gear is 2 inches more than the circumferences of the smaller gear do you agree explain your answer
*Thursday, January 22, 2015 at 8:44pm*

**Math**

Gabe placed $2000 in a certificate of deposit. He earned $10 in interest each month for the next 36 months. Find the annual simple interest rate for his certificate of deposit.
*Thursday, January 22, 2015 at 8:43pm*

**Math**

If an airplane is traveling at 900 km/hr and slows to 450km/hr in 2.5 minutes. What is the plane's acceleration?
*Thursday, January 22, 2015 at 8:30pm*

**Math**

Samuel and Jason 3/4 of the combined earnings from Wednesday to buy a gift. how much do they spend? Is there enough left over from Wednesday's earnings to buy a card that costs $3.25?
*Thursday, January 22, 2015 at 8:25pm*

**Math**

An open box is to be made from a flat piece of material 9 inches long and 6 inches wide by cutting equal squares of length x from the corners and folding up the sides. Write the volume Vof the box as a function of x. Leave it as a product of factors, do not multiply out the ...
*Thursday, January 22, 2015 at 8:22pm*

**Math**

How do I graph inequality on a number line? How do I work the problem out? x < 8 (there is a little line under the greater than sign)
*Thursday, January 22, 2015 at 8:13pm*

**Conceps of development**

Which of the following is the crux of the interrelationship between mathematics and science? A. About half of the basic math concepts are related to science concepts. B. The basic concepts of mathematics are the basic process skills of science. C. Basic mathematics process ...
*Thursday, January 22, 2015 at 7:34pm*

**math**

6 people with 4 bananas how much for each person
*Thursday, January 22, 2015 at 6:51pm*

**math**

6 people with 2 sticks of butter how much each in tbsp
*Thursday, January 22, 2015 at 6:47pm*

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