Saturday
May 30, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

Math
A company predicts that this years sales will be equivalent to 144% of last years sales. Which value represents 144%? A. 14.4 B. 1 11/25 C. 1.56 D. 14 4/5
Thursday, April 9, 2015 at 12:48pm

math help please
Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. The graph has a greater rate of change.*** The table has a greater rate of change. none of the above 2. y = 2x + 7 The slopes...
Thursday, April 9, 2015 at 11:28am

math
An ice cream store sells 30 different flavours of ice cream and it offers a choice of 3 different kinds of cones. In how many ways can we order a dozen two-scoop ice cream cones if any two of them in one order must differ at least by a flavor or by the kinds of cones? Thanks ...
Thursday, April 9, 2015 at 11:02am

Ib math
The marks of 2376 students in an IB exam are normally distributed with mean 49 marks and variance 225 A) if the mark is 45 estimate the number of candidates who passed the exam? B) if top 7% of students are awarded a 7, find the minimum mark required to obtain a 7? mean=49 ...
Thursday, April 9, 2015 at 10:31am

math
2 3/7 + 3/8
Thursday, April 9, 2015 at 9:25am

Math
Put this matrix in Reduced Row Echelon Form. Make sure that you list the Elementary Row Operations that you use and show every step in order to solve this. [ 1 2 1 -2 -3 1 3 5 0]
Thursday, April 9, 2015 at 8:24am

math
a model rocket is projected straight upward from the ground level. It is fired with an initial velocity of 192 ft/s. How high is the rocket after 10 seconds? When is the rocket at a height of 432 feet? What is the maximum height of the rocket? When will the rocket hit the ground?
Thursday, April 9, 2015 at 2:57am

math
a model rocket is projected straight upward from the ground level. It is fired with an initial velocity of 192 ft/s. How high is the rocket after 10 seconds?
Thursday, April 9, 2015 at 2:49am

Math.
For question 1-4 for the interest. All rates are annual interest rates. 1) principal, $400 rate, 5% time, 1 year. a. $10 b. $20 c. $40 d. $200 2) principal, $1,000 rate, 8.5% time, 3 years a. $255 b. $170 c. $22.5 d. $17 3) principal, $200 rate, 9% time, 1/2 year a. $9 b. $18 ...
Thursday, April 9, 2015 at 2:23am

math (explanation and answer)
A conical drinking cup is made from a circular piece of paper of radius R inches by cutting out a sector and joining the edges CA and CB. Find the radius, height and volume of the cone of greatest volume that can be made this way
Thursday, April 9, 2015 at 2:06am

Math
1. The sum of the ages of two brothers is 46. The younger brother is 10 more than a third of the older brother's age. How old is the younger brother? 2. You have 59 total coins for a total of $12.05. You only have quarters and dimes. How many of each coin do you have?
Thursday, April 9, 2015 at 1:38am

math
What is the value of x in the system shown? y=1/5x+2 y=x-4
Thursday, April 9, 2015 at 1:25am

Math
An ice cream store sells 30 different flavours of ice cream and it offers a choice of 3 different kinds of cones. In how many ways can we order a dozen two-scoop ice cream cones if any two of them in one order must differ at least by a flavor or by the kinds of cones? Thanks ...
Thursday, April 9, 2015 at 1:10am

math
What is the value of y in the system shown? y=12x-3 y=-2x+4 Thanks
Thursday, April 9, 2015 at 12:37am

math
A city park employee collected 600 cents in nickels, dimes and quarters at the bottom of a wishing well. There were 10 nickels and a combined total of 25 dimes and quarters. How many dimes and quarters were at the bottom of the well? I know the answer but need help with what ...
Thursday, April 9, 2015 at 12:12am

math /fraction
a container of fruit punch contains one half apple juice, one third pineapple juice and one sixth orange juice. If the container contains 12 cups how many cups are pineapple juice?
Wednesday, April 8, 2015 at 11:16pm

Math
There are 9 red gum balls, 5 green gum balls, 8 yellow gum balls, and 8 blue gum balls in a machine. Find P(green, then yellow) A. 40/900 B. 5/30 C. 8/30 D. 40/870 Is the answer D? Thank you
Wednesday, April 8, 2015 at 10:46pm

math
a polygon has a perimeter of 30inches. each side is 6inches long. what is the figure
Wednesday, April 8, 2015 at 10:40pm

Math
Solve this system that is represented by the following matrix. [1 -2 -2| -3 0 5 3| 13 0 0 1| 1] Write answer in (x, y, z)
Wednesday, April 8, 2015 at 10:35pm

Math
Thr number cube shown is rolled and the spinner shown is spun. Find P(an odd number and yellow). The cube shows the numbers 1,5,3. The color on the top left square is yellow, the bottom left squares color is blue, the color on the top right square is green, the bottom right ...
Wednesday, April 8, 2015 at 10:34pm

math
use order of operation to simplify 24+20DIVIDED BY 4-(3TIMES2)
Wednesday, April 8, 2015 at 10:18pm

math
A crate is 7ft. Wide 7ft. Deep and 7ft. Tall write the measurements of the crate in exponential notation, standard form, and expanded form
Wednesday, April 8, 2015 at 9:34pm

Math
Solve the equation. Choose the answer in simplest form. 4x = 8/7 a. 1/28 b. 1/7 c. 2/7 d. 7/2 Would the correct answer be b.
Wednesday, April 8, 2015 at 8:29pm

Math
Thomas put 1/4 of the c coins he had in his pocket into the jar under his bed. He put 16 coins into the jar. The equation that models this situation is 1/4c = 16. How many coins did Thomas have in his pocket? a 4 coins b 12 coins c 20 coins d 64 coins The answer would be c.
Wednesday, April 8, 2015 at 8:19pm

Math
Solve the equation 13r = 3/7. Express your answer in the simplest form. a r = 91/3 b r = 7/39 c r = 39/7 d r = 3/91 Is c the correct answer.
Wednesday, April 8, 2015 at 8:12pm

Math
With which letter can you make exactly 2 polygons by drawing 2 more line segments?
Wednesday, April 8, 2015 at 8:02pm

Math
If you were stacking 13 in. boxes in a 58 in. closet, would you round up or round down to determine how many can fit? How many would fit? How do I solve this problem.
Wednesday, April 8, 2015 at 7:51pm

Math
Jill said that an angle is made of any two rays. Is she correct? Explain
Wednesday, April 8, 2015 at 7:42pm

Math
A number cube is shown is rolled and a spinner is spun. Find P(an odd number and yellow) The cube numbers are 1,5,3 that are being shown. The spinners colors are yellow in the top left corner, blue in the left bottom color, green in the top right color, yellow in the bottome ...
Wednesday, April 8, 2015 at 7:30pm

Math
The perimeter of a rectangular garden is (3x + 12) feet. What is the perimeter of the garden in factored form?
Wednesday, April 8, 2015 at 7:28pm

Math didn't post problem right
find the Quotient: 1,754/21 a 1733 b 21 11/83 c 83 11/21 d 1775 Is C the correct answer. I had post the problem wrong. Sorry
Wednesday, April 8, 2015 at 7:24pm

Math
find the quotient: 1,754/12 a 1733 b 21 11/83 c 83 11/21 d 1775 Would C be the correct answer?
Wednesday, April 8, 2015 at 7:14pm

Math
A number cube is rolled and a spooner is spun P(5 and blue) The spinner has four squares The top left corner is yellow the bottome left corner is blue the right top corner is green the bottome right corner is yellow. The spinner is on the green square. The cube numbers showing...
Wednesday, April 8, 2015 at 6:51pm

math
maya thinks the theater sold 1,256 regular-price tickets.jonah says that 1,248 regular-pricetickets were sold.do you agree with either person
Wednesday, April 8, 2015 at 6:39pm

Math
Put this matrix in Reduced Row Echelon Form. Make sure that you list the Elementary Row Operations that you use and show every step in order to solve this. [ 1 2 1 -2 -3 1 3 5 0]
Wednesday, April 8, 2015 at 6:32pm

Math
can prisms that have the same height and same base perimeter have different volumes?
Wednesday, April 8, 2015 at 6:32pm

Math
Trying to find the rule & equation for the function table. x= 1, 2, 3, 5, 10, 12 y= 9, 13, 17, 25, 45, 53
Wednesday, April 8, 2015 at 6:30pm

Math
Which of the following is an example of an independent event? A. Choosing one sock at random from your drawer, putting it on and then choosing another at random. B. Flipping a coin and rolling a number cube. C. Choosing students at random for basketball teams. D. Removing a ...
Wednesday, April 8, 2015 at 6:16pm

Math
The Leaning tower of pisa is 55.9m tall and leans 5.5 degrees from the vertical. If its shadow is 90.0m long, what is the distance from the top of the tower to the top of the edge of it’s shadow? Assume that the ground is level.
Wednesday, April 8, 2015 at 6:02pm

Math
Which of the following is an example of a dependent event? A. Flipping two coins B. Rolling a number cube and spinning a spinner. C. Choosing two scoops of ice cream. D. Choosing a cookie at random,eating it, and then choosing another at random. Is the answer D? Thank you
Wednesday, April 8, 2015 at 5:40pm

Math help
Which expression represents the quotient 3.36/6. A. (3/6)+(0.03/6)+(0.6/6) B. (3/6)+(0.30/6)+(0.06/6) C. (6/6)+(0.03/6)+(0.6/6) D. (6/6)+(0.30/6)+(0.03/6) I think it's B but not sure of how I really got the answer anymore.
Wednesday, April 8, 2015 at 5:31pm

Math
Directions: Does the following inverse of [2 6 exist? 1 3] If it isn't an inverse, explain why.
Wednesday, April 8, 2015 at 5:30pm

math
write a system of equations that is not linear and graph. can this work equation work? 3x+2y=12 3x+2y=6 1. 3x+2y=12 y=-3/2x + 6 2. 3x+2y=6 y = =3x/2+3 when i graph it will be parallel.
Wednesday, April 8, 2015 at 5:11pm

math
Janet has 4} 9 gallon of paint. She uses 1} 8 of the paint she has to cover 3 canvases. She uses the same amount of paint to cover each canvas. What amount of paint does Janet use to cover each canvas?
Wednesday, April 8, 2015 at 5:09pm

math
Aubrey has a shelf full of books. • Exactly 1} 3 of the books on the shelf are mysteries. • Aubrey has read 10 of the mysteries on the shelf. • The number of mysteries Aubrey has read is greater than }1 5 of the number of mysteries on the shelf and less than }1 ...
Wednesday, April 8, 2015 at 5:08pm

math
The cost of a student ticket to the school play is $7. Write an equation that correctly relates the cost, c, for a particular number of student tickets, s, purchased. Identify the independent and dependent variables.
Wednesday, April 8, 2015 at 4:49pm

Algebra 2 math
In triangle GHI, angle H is a right angle, GH = 40, and cos G= 40/41. Draw a diagram and find each value in fraction and in decimal form. a) Sin G b. Sin I c. Cot G d. csc G e. cos I f. sec H - I have no idea how to do this
Wednesday, April 8, 2015 at 4:47pm

Math 141
A pair of fair 6-sided dice is rolled. What is the probability that a 3 is rolled if it is known that the sum of the numbers landing uppermost is less than or equal to 6?
Wednesday, April 8, 2015 at 4:42pm

Math
If it takes 3.5 yds to make 50 items, how many yds would it take to make 3000 items?
Wednesday, April 8, 2015 at 4:38pm

math
How much would it cost to drive 54.2 miles in a car that gets 16 miles per gallon and gasoline costs $2.31 per gallon?
Wednesday, April 8, 2015 at 4:12pm

Finite Math
Juan invested $24,000 in a mutual fund 5 years ago. Today his investment is worth $34,616. Find the effective annual rate of return on his investment over the 5-year period.
Wednesday, April 8, 2015 at 3:57pm

math
A rectangle has a length of 6x+3 units and a width of 8 units. Write a simplified expression for the area, in square units, of this rectangle. So, my answer was 9x+8 please tell me is this correct... Thank you
Wednesday, April 8, 2015 at 3:26pm

Math
Travis is making 5 lasagna using 12 cups of cheese. Which number represents the amount of cheese he will use per lasagna?
Wednesday, April 8, 2015 at 3:23pm

math
A tractor bought for R120 000 depreciates to R11 090,41 after 12 years by using the reducing balance method. Calculate the rate of depreciation per annum if the rate was fixed over the 12 years, and calculate the effective interest rate if interest is 9,8% p.a., compounded ...
Wednesday, April 8, 2015 at 3:05pm

math
To the nearest tenth, what is the distance between (7,4) and (12,5)? a) 4.8 units b) 4.9 units C) 5.0 units d) 5.1 units Please explain. Thank you.
Wednesday, April 8, 2015 at 2:40pm

math
these marbles are placed in a bag and two of them are randomly drawn what is the probability of drawing two pink marbles if the first one is placed back in the bag before the second draw thebag has 10 marbles.2 yellow.3 pink.5 blue
Wednesday, April 8, 2015 at 2:34pm

Math
Pier one had a sale-buy two for $ 12 EACH and get the third free.how much would she spend to get 15 beanbag chairs? Need to show work
Wednesday, April 8, 2015 at 1:50pm

math
Let A = {a, b} and list the four elements of the power set P (A). We consider the operations + to be ∪, · to be ∩, and complement to be set complement. Consider 1 to be A and 0 to be ∅. a). Explain why the description above defines a Boolean algebra. b...
Wednesday, April 8, 2015 at 1:48pm

wisdom house
Math. Change these fraction into as sending order 4/3, 7/8,3/16
Wednesday, April 8, 2015 at 1:40pm

math
3.Graph the points A(–5, 0 ), B(–4, 3), and C(0, –4) on the same coordinate plane. 2. Without graphing, identify the quadrant in which the point (x, y) lies if x < 0 and y < 0. (1 point) 3.Determine which ordered pair is a solution of y = –5x + 10. (1...
Wednesday, April 8, 2015 at 1:10pm

Math---PLEASE, HELP ME!!!
How long will it take to travel 614 km. when you are moving at a rate of 5 cm. per year?
Wednesday, April 8, 2015 at 12:58pm

math
what are the different 4-digit combinations that can be made from using 5, 6, 3, 8, if the number can appear just once?
Wednesday, April 8, 2015 at 12:46pm

Math (Please help ASAP)
How do I solve this equation (q+p^2-33p=9) for the point of elasticity in terms of p? Thank you!
Wednesday, April 8, 2015 at 12:01pm

Math
What value of x makes this equation true? 1/3(9x-2)+1=2(4x+1) a) x=-3 b)x=-1/3 c)x=1/3 d)x=3 Please explain. Having a hard time figuring out.
Wednesday, April 8, 2015 at 11:47am

Math
Q. Ted's dad agreed to take out the eight players on Ted's basketball tea, for ice cream sundaes. Each of the players ordered an ice cream sundae for $2.49. What was the total bill? - A. Do I just mulpite 8 by $2.49?
Wednesday, April 8, 2015 at 11:23am

MATH
Elaine is painting a fence. She knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. How much paint does Elaine need? (Remember 3 feet = 1 yard)
Wednesday, April 8, 2015 at 10:32am

math
solve sinx/2,cosx/2 & tanx/2 of the following:- (a)sinx=1/4 & x lies in second quadrant.
Wednesday, April 8, 2015 at 12:56am

Math
Patterns and colors on seventeenth to nineteenth century kimonos were used to identify the hometown of which of Japanese citizen? A. Farmers B. Nobility C. Warriors D. Lawmakers Is the answer C. Thank you
Tuesday, April 7, 2015 at 11:33pm

math
Five friends picked 7 pounds of apples. They will share the apples equally. How much will each get?
Tuesday, April 7, 2015 at 9:55pm

Math
A 12 foot-high pole casts a 9 foot long shadow, at the same time of day, what would be the length of a shadow cast by a 45 foot-long tree
Tuesday, April 7, 2015 at 9:53pm

finite math
Find the amount of an ordinary annuity for 5 years of quarterly payments of $2,200 that earn interest at 4% per year compounded quarterly.
Tuesday, April 7, 2015 at 9:52pm

math
Janet has 4 }9 gallon of paint. She uses 1 }8 of the paint she has to cover 3 canvases. She uses the same amount of paint to cover each canvas. What amount of paint does Janet use to cover each canvas?
Tuesday, April 7, 2015 at 9:48pm

Math
A multiple-choice question has five possible answers. What are the odds in favor of guessing the right answer? A.2:3 B.4:1 C.1:4 D.3:2 Is the answer C? Thank you
Tuesday, April 7, 2015 at 9:34pm

math
the perimeter of a rectangle is 35.54 inches longer than the perimeter of a square of side 6.75 inches. Find the perimeter of the rectangle to the nearest tenth of an inch.
Tuesday, April 7, 2015 at 9:33pm

math
Aubrey has a shelf full of books. • Exactly 1 }3 of the books on the shelf are mysteries. • Aubrey has read 10 of the mysteries on the shelf. • The number of mysteries Aubrey has read is greater than 1 }5 of the number of mysteries on the shelf and less than 1 }...
Tuesday, April 7, 2015 at 9:32pm

Math
A number cube with the numbers 1 through 6 is rolled. Find P ( number is greater than or equal to 3). A.4\6 B.1\6 C.2\6 D.5\6 Is the answer A? Thank you
Tuesday, April 7, 2015 at 9:17pm

math
(4n-1)^2=16
Tuesday, April 7, 2015 at 9:10pm

Math
There are 35 marbels in a bag: 9 blue marbels, 8 green marbels, 4 red marbels, 8 white marbels, and 6 yellow marbels. Find P(red). Write the probability as a fraction in simplest form, a decimal, and a percent. A. 4\31,0.129,12.9% B. 4\35,0.114,11.4% C. 1\7,0.143,14.3% D. 3\32...
Tuesday, April 7, 2015 at 9:00pm

math
an oatmeal cookie recipe that makes 24 cookies requires 1 cup of sugar if alex needs 30 cookies how many cups of sugar should she use
Tuesday, April 7, 2015 at 8:48pm

Math
the Ruby Snow Company makes custom snowboards. the company's profit can be modelled with the relation y=6x^2+42x-60,where x is the number snowboards sold(in thousands) and y is the profit (in hundreds of thousands of dollars) How many snowboards does the company need to ...
Tuesday, April 7, 2015 at 8:39pm

math
If the product of two numbers is even, and the result is an odd number , what is the numbers ?
Tuesday, April 7, 2015 at 8:34pm

math
A 2-inch length in the scale at the left represent an actual length of 20 ft. What is the scale of the drawing?
Tuesday, April 7, 2015 at 8:18pm

Math
the Ruby Snow Company makes custom snowboards. the company's profit can be modelled with the relation y=6x^2+42x-60,where x is the number snowboards sold(in thousands) and y is the profit (in hundreds of thousands of dollars) How many snowboards does the company need to ...
Tuesday, April 7, 2015 at 7:55pm

Math
How do you find x in y=-5x^2+30.5x without using the formula x=-b+ root b^2-4ac.... They say to factor it. But it's not working for me. The answer is suppose to be x= About 0.7 and 5.4. But I can't get that answer
Tuesday, April 7, 2015 at 7:46pm

Math
You are working as an assistant to a chef. The chef has 6 cups of berries and will use 2/3 cup of berries for each dessert he makes. How many desserts can he make? Where do I start to solve this problem?
Tuesday, April 7, 2015 at 7:33pm

Math
Does a in y=ax^2+bx+c have to be positive?
Tuesday, April 7, 2015 at 7:32pm

math
In constructing a graph that compares average water usage per household in different communities, you choose to use cubes of different sizes. If the cubes are drawn so that their volumes are proportional to the volumes of water usage in different comunities, is the resulting ...
Tuesday, April 7, 2015 at 7:21pm

math
In a local school 34 students are enrolled in a math class, 85 are enrolled in an english class, 58 are enrolled in an art class, and 54 are enrolled in a history class. Construct a pie chart with this data. What is the central angle of the slice representing students ...
Tuesday, April 7, 2015 at 6:53pm

math
A number has an 8 in the hundredths place. The number also contains a digit whose value is 1 } 10 the value of the 8 in the hundredths place. Which could be the expanded form of the number?
Tuesday, April 7, 2015 at 5:57pm

math
a spinner is divided into 10 sectors. the number 1 through5 are each placed in two different sectors. find the probability of each event. P(less than 3) P (5) p (8)
Tuesday, April 7, 2015 at 5:57pm

math
Roger just got a puppy for his birthday. He and his mother will build a fence around an area in the backyard for the puppy to play in. The play area will be 24 square feet. What dimensions could the play area be? Which dimensions would require the least amount of fencing?
Tuesday, April 7, 2015 at 5:41pm

Math
Use the function rule, y = 2x + 5, to find the values of y when x = 1, 2, 3, and 4. Write the answers as ordered pairs that would be used to graph the function. I did 3 I just need help with 1, 2 and 4.
Tuesday, April 7, 2015 at 5:39pm

math
Janice walked around two sides of a square park. The perimeter of the park is 1,200 yards. How many yards did Janice walk? Explain your answer.
Tuesday, April 7, 2015 at 5:38pm

math
Joey's playhouse has a perimeter of 28 feet. What could be the dimensions of the playhouse? Draw a model and label the length and width. Show that the dimensions equal a perimeter of 28 feet.
Tuesday, April 7, 2015 at 5:35pm

math
Ted is helping his father plant their vegetable garden this year. They will put a fence around the garden. Ted measures the length of the garden, which is 6 feet. His father tells him that the width is twice the length. How much fencing do Ted and his father need to buy yo ...
Tuesday, April 7, 2015 at 5:32pm

math
A rectangular piece of construction paper is 11 inches long and 8 inches wide. How could it be cut to make a rectangle that has an area of 32 square inches?
Tuesday, April 7, 2015 at 5:28pm

Math I need help ASAP!
1) Identify the function rule shown in the table. Function Table n - 3, 4, 5, 6 y - 2, 1, 0, -1 a. y = 2 + n b. y = 5n c. y = 5 - n d. not enough information ** 2) What is the values of the function y = -2x - 4 for x = 0,1,2 and 3? a. 0, -6, -8, -10 b. -4, -6, -8, -10 ** c. -4...
Tuesday, April 7, 2015 at 4:57pm

math
(5X+5)^2=125
Tuesday, April 7, 2015 at 4:43pm

MATH PLZ SOMEONE HELP
7. Suppose you earn $10 each hour you babysit. Which function describes the relationship between your total earnings E and the number of hours you babysit, h? (1 point) E(h) = 10h E(h) = h + 10 E(h) = h – 10 h = 10E
Tuesday, April 7, 2015 at 3:48pm

math help
Given F(x)=-6/x-3 -1 1.for which values of x is f(x) undefined? 2.for which values of f will the function have real roots 3.what is the domain of f 4.calculate the x and y intercepts of f
Tuesday, April 7, 2015 at 2:37pm

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