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July 25, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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math
income is subject to federal taxes
Friday, May 9, 2014 at 10:43pm

math
Your income tax withholding is dependent on
Friday, May 9, 2014 at 10:42pm

math
What is the area of a parallelogram where the base= 3x+1 and the height= 9. I know the area is base*height but does that mean you distribute the 9?
Friday, May 9, 2014 at 10:42pm

Math
In a circle whose radius is 13 cm, a central angle intercepts an arc that measures 65o. What is the arc length? Round your answer to the nearest hundredth of a centimeter.
Friday, May 9, 2014 at 10:22pm

Math
The radius of the inscribed circle is 5. If the length of the hypotenuse of the right triangle ABC is 19, what is the perimeter of the triangle?
Friday, May 9, 2014 at 10:22pm

Math
What's the answer to 1^2-(2-x)^2=2^2-x^2 The answer said x =7/4 But no matter how I tried. I couldn't get that
Friday, May 9, 2014 at 9:33pm

Math
n-2n^2=0
Friday, May 9, 2014 at 9:20pm

math
Marley drives to work every day and passes two independently operated traffic lights. The probability that both lights are red is 0.35. The probability that the first light is red is 0.48. What is the probability that the second light is red, given that the first light is red?
Friday, May 9, 2014 at 8:42pm

Math
For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was 5 cents, and the number of reserved seats sold was 1/25 of the number of unreserved seats sold.If, at a second game, the price of the reserved seats is to be ...
Friday, May 9, 2014 at 7:38pm

Math
Simplify!! 54 a^2 b^3 ___________ 81 a^3 b^2 Choices are:: A. 2/3 a^2 b B. 2a^2 ____ 3b
Friday, May 9, 2014 at 7:09pm

math
An industrial machine made 63 shirts. If it takes 7 minutes to make each shirt, how many minutes was it working. A. 63+7 B.63-7 C.63x7. My answer is C.
Friday, May 9, 2014 at 7:07pm

Math
12.5 of 180 = ?
Friday, May 9, 2014 at 6:46pm

Math
Is 0.67676768 a terminate or a repeat ?
Friday, May 9, 2014 at 6:10pm

Math ~ Check Answers ~
#5 X: 0, 1, 2, 3 Y: -4, -3, -2, -1 a.) -1 b.) 1 c.) -4 d.) -7 (My Answer)*** #6 X: -1, 0, 1, 2 Y: -4, -1, 2, 5 a.) -5 b.) -3 (My Answer)*** c.) -1/3 d.) 3
Friday, May 9, 2014 at 5:18pm

math
The grade 8 class at Wheatly Middle School sold 77 boxes of almond chocolates. This is 22% of all the boxes of chocolate sold. a) Estimate the total number of boxes sold. b) Calculate how many boxes were sold.
Friday, May 9, 2014 at 4:28pm

Math
Identify the sequence as arithmetic, geometric, or neither. Explain your answer. 1.6, 0.8, 0.4, 0.2 . . .
Friday, May 9, 2014 at 4:09pm

math
The enrollment in a university is now 52,500, an increase of 5% over the enrollment last year.By how many students did the enrollment increase this year? a. 2500 b. 47,500 c. 50,000 d. 55,000 e. 57,750 f. 60,000
Friday, May 9, 2014 at 2:27pm

math
If the operation # is defined by the equation x # y = 2x + y,what is the value of a in the equation 2 # a = a # 3 ? a. 0 b. -1 c. 1 d. 1.5 e.-1.5 f. 2
Friday, May 9, 2014 at 2:21pm

math
Four similar glass tumblers just fit into a cubical box.The area of the top of the circular cover of any one of the tumblers is 4 pi.The area of each side of the box is a. 16 b. 32 c. 32 pi d. 64 e. 64 pi please answer and explain
Friday, May 9, 2014 at 2:05pm

math
George has 6 black pens, 4 red pens, and 12 pencils in his desk drawer. If he reaches into his desk drawer and randomly selects something to write with, what is the probability that he will grab a pen?
Friday, May 9, 2014 at 1:59pm

math
can you help me out with this one Ms. Sue Explain how to write a function rule from the table below. Then write the function rule. x 2 4 6 y 1 0 -1
Friday, May 9, 2014 at 1:55pm

math
The ratio of boys to girls in a senior class is 5:3. If 9/10 of the boys may graduate and all the girls may or may not graduate, what is the maximum part of the senior class that may graduate? a. 3/5 b. 7/8 c. 15/16 d. 2/3 e. 27/50 please answer and explain
Friday, May 9, 2014 at 1:49pm

math
Given a circle A whose diameter is 2 ft.and a rectangular piece of tin B,10ft by 4 ft.Find, correct to the nearest square foot, the tin that will be left after the greatest possible number of circles of the size of A have been cut from B. a. zero b. 1 sq.ft c. 2 sq.ft d. 9 sq....
Friday, May 9, 2014 at 1:46pm

math
19. a prototype rocket burns 159 gallons of liquid hydrogen fuel each second during a regular launch. Make a table that shows how many gallons of fuel are burned after 2,3,5 and 10 seconds. (3 points) can you help me Ms.Sue
Friday, May 9, 2014 at 1:29pm

Math
Wellesville must meet a budget of $27,000. All of the city's income is derived from property tax. What rate of tax must they use if the assessed value of the taxable property is $1,173,913? (Answer to tenths) how do you work this out?
Friday, May 9, 2014 at 1:26pm

Math
Susan's property is assessed at $27,500. The property tax rate in her city is 3.25%. Find her property tax. how do i find it?
Friday, May 9, 2014 at 1:25pm

math
In triangle ABC, AB=2 square root 2, BC=8,angle ABC=45 degrees.Find area ABC. a. 4 square 2 b. 8 c. 8 square 2 d. 16 e. 16 square 2 please answer and explain
Friday, May 9, 2014 at 1:20pm

math
A picture 15 inch x 30 inch is surrounded by a mat 2 inch wide.The aea of the mat in swuare inches is a. 60 b. 94 c. 124 d. 128 e. 196 I know the answer is e, but i don't know how to do it, anyone can tell me how to do it, thank you
Friday, May 9, 2014 at 12:49pm

math
A cow is attached to a rope 10 feet long in a pasture bordered by two fence( more than 10 feet long) meeting at an angle of 60 degree. What is the area of the space in which the cow is grazing? a. 20 pi b. 5 pi /3 c. 20 pi /3 d. 50 pi /3 e. 100 pi please answer and explain
Friday, May 9, 2014 at 12:30pm

Math
For amounts between $10,000 and $24,999, a credit union pays a rate of 2.5% on term deposits with maturities in the 91- to 120-day range. However, early redemption will result in a rate of 1.75% being applied. How much more interest will a 91-day $20,000 term deposit earn if ...
Friday, May 9, 2014 at 12:12pm

math
ABCD is a rectangle. If AC = 2(5a + 1) and BD = 2(a + 1), find the length of each diagonal.
Friday, May 9, 2014 at 10:02am

math
Suppose that you are taking a course that has three exams which count for three-fifths of your grade and a final which counts for two-fifths of your grade. On your first three tests your scores on were 84, 72, and 96. To get an B in the course, you must have an average of at ...
Friday, May 9, 2014 at 9:07am

MATH
Please help I am supposed to verify that cot^2x+tan^2x =sec^2xcsc^2x-2 I just can't seem to get the two equations to equal to each other.
Friday, May 9, 2014 at 7:17am

math
Naomi has 50 red beads and white beads together the # of red beads is 1 more than 6 times the# of white beads how many red beads does naomi
Friday, May 9, 2014 at 6:06am

Math
Billy is riding on a 20 meter diameter Ferris wheel that is making 3 revolutions per minute. What are your linear velocity and your angular velocity? If there are 8 equally spaced seats on the ferris wheel then what is the length of the arc between two adjacent seats?
Friday, May 9, 2014 at 5:38am

math
Katy babysat to make some money, but Katy has not worked any hours so (x=0), she has not earned any wages so (0,0) would be one coordinate. Katy earns 10 dollars an hour. She then worked 3 hours, so she now has $30.00, so (3,30)is another point. Katy worked 15 hours earning ...
Friday, May 9, 2014 at 12:12am

maTH
I NEED HELP REALLY BAD 5. Directions: Select all the correct answers. Nancy is studying constellations in science class. Two things are strongly supported by all random samples of the number of stars in a constellation. Most constellations have from three to seven stars in ...
Thursday, May 8, 2014 at 11:46pm

Math (Calculus)
Use the shell method to set up and evaluate the integral that gives the volume of the solid generated by revolving the plane region about the y-axis. y=4-x^2, y=0
Thursday, May 8, 2014 at 10:55pm

Math (Calculus)
Use the shell method to find the volume of the solid generated by revolving the plane region about the indicated line. y=4x-x^2, y=0, about the line x=5
Thursday, May 8, 2014 at 10:53pm

Math (Calculus)
Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the y-axis. (Use Disc Method) y=3(2-x), y=0, x=0
Thursday, May 8, 2014 at 10:52pm

math
Telephone company A charges $3.00 for the first minute of any long distance call and $0.50 for each additional minute. Telephone company B charges $2.00 for the first minute of any long distance call and $0.70 for each additional minute. If the cost of a call lasting x minutes...
Thursday, May 8, 2014 at 10:37pm

Math
How is 1/(x-2) = (2x - 6)/(x + 6) + 1 rewritten as 1/(x - 2) = 3x/(x + 6)? I don't understand.
Thursday, May 8, 2014 at 10:14pm

math
A picture 16" x 24" has a frame 1" wide.Approximately how many times greater than the area of the frame is the area of the picture? a. 5 b. 45 c. 48 d. 80 e. 84 please answer and explain
Thursday, May 8, 2014 at 10:09pm

math
Abe can mow the lawn in 15 minutes.Ben can mow the lawn in 20 minutes.Carl can mow the lawn in 30 minutes.They work together for 5 minutes.What part of the lawn was mowed? a. 1/4 b. 2/3 c. 3/4 d. 4/5 e. all of it please answer and explain
Thursday, May 8, 2014 at 10:03pm

Grade 12 Math
if a and b are unit vectors, and magnitude of vectors a +b = sq. root of 3, determine (2a-5b) dot (b+3a).
Thursday, May 8, 2014 at 9:34pm

math
A 40m deep well with radius 3.5m is dug and the earth taken out is evenly spread to form a plat form of dimension 28m by 22m. Find the height of the platform.
Thursday, May 8, 2014 at 9:30pm

math
Some friends share a pizza.if they cut the pizza into fourths, will the slices be larger or smaller than if they cut the pizza into halves?
Thursday, May 8, 2014 at 9:25pm

Math
Three dimes to five nickels ratio if three to five total 120 coins how many are fimes
Thursday, May 8, 2014 at 9:06pm

Math
3. What are the next three terms of the sequence 6, 12, 18, 24 a; 28, 34, 40 b; 30, ,34, 38 c; 30, 36, 44 d; 30, 36, 42 --------------------------- 14. The sale price of ground beef at a local grocery store is $1.49 for the first pond and $1.09 for each additional pound. Which...
Thursday, May 8, 2014 at 9:04pm

Math
Dorothy and Rosanne are baking cookies for a party. Working alone, Rosanne can finish the cookies in 6 hours. Dorothy can finish them in 8 hours if she is working alone. How long will it take them to bake the cookies if they are working together? Round your answer to the ...
Thursday, May 8, 2014 at 8:54pm

Math
I know some of these are really simple, and I can figure them out easy enough, but please answer all questions. I'm learning this subject, but I have to complete the entire school year within a month and I'm up to my head in homework and I just don't have time to ...
Thursday, May 8, 2014 at 8:45pm

Math - Pleeeease
Two planes take off at a ny airport. The first plane climbs at an angle of 45 degrees with respect to the ground and reaches an altitude of 5600 feet. The second plane climbs at an angle of 60 degress with respect to the ground and reaches an altitude of 8200 feet. To the ...
Thursday, May 8, 2014 at 8:37pm

Math
1-)A passenger boat which travels 6 mph faster than a freighter required 3 days less time to make a trip of 2592 miles. Find the rate of the passenger boat. 2-)For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was...
Thursday, May 8, 2014 at 8:24pm

Math
How is 1/(x-2) = (2x - 6)/(x + 6) + 1 rewritten as 1/(x - 2) = 3x/(x + 6)? I don't understand.
Thursday, May 8, 2014 at 8:22pm

math
A room is18 ft long 14 ft wide and 8 ft high. Find the cost of carpeting the floor with carpet $5\ft2
Thursday, May 8, 2014 at 8:17pm

math
There were 744 tickets sold for a basketball game. The activity cardholder's tickets cost $1.75 and the non-cardholders tickets cost $2.25. The total amount of money collected was $1477.50. How many of each kind of ticket were sold?
Thursday, May 8, 2014 at 8:12pm

math
What magic trick dies mr.utterbunk perform every evening
Thursday, May 8, 2014 at 8:08pm

Math
Eva is making bran muffin. She measures5/4 cups of bran, 1/4 cup of flour, and 7/4 cups of oats. What is the order of the ingredients from least to greatest amounts?
Thursday, May 8, 2014 at 7:44pm

Math Word Problem %
lisa spend 3 hours driving to and from work each work day. what percent of her day does she spend driving to and from work each work day?
Thursday, May 8, 2014 at 7:24pm

math
An actor invests some money at 7%, and $44000 more than three times the amount at 10%. The total annual interest earned from the investment is $41770. How much did he invest at each amount
Thursday, May 8, 2014 at 7:16pm

Math 10
Myrtle throws a ball upward from a second-floor balcony, 6 m above the ground with an initial velocity of 2 m/s. In this situation, u = 2 and ho = 6, so the relation that models the height of the ball is h = -5t2 + 2t + 6. Myrtle knows that changing the velocity with which she...
Thursday, May 8, 2014 at 6:57pm

7th grade math
Computer catalog has a computer monitor that is 19 inches. The 19 inches is the diagonal distance across the screen. If the screen is 10 inches in height, what is the width of the screen to the nearest inch?
Thursday, May 8, 2014 at 6:44pm

Math
Two vans leave a parking lot at the exact same time. A few minutes later, car 1 is 8 miles due east of the parking lot and car 2 is 15 miles due south of the lot. How far a part are the two cars in miles?
Thursday, May 8, 2014 at 6:34pm

math
Calculate the amount of interest earned in 10 years on $1000.00 invested at 3.00% per annum, compounded monthly.
Thursday, May 8, 2014 at 6:23pm

Math
A boxs width is 1/4 its length. The perimeter of the box is 30 inches. What are the boxs length and width?
Thursday, May 8, 2014 at 6:16pm

math
Calculate the final value after 10 years if you invest $5000.00 at 2.5% per annum, compounded annually.
Thursday, May 8, 2014 at 6:10pm

Math
An investment earning simple interest at a rate of 1.10% per annum for a term of 5 years earned $82.50 in interest. What was the principal?
Thursday, May 8, 2014 at 6:08pm

MATH PLS HELP CHECK ANSWERS
3. What is the rule for the function shown in the table? (1 point) x = -1, 0, 1, 2 y = -2, 1, 4, 7 A.y = 1/3x + 1 B.y = 3x + 1 C.y = 1/3x D.y = 1/2x + 1 4. What is the function rule for the following situation? rex paid $20 for a membership to the pool and pays $3.00 each time...
Thursday, May 8, 2014 at 5:19pm

Math
25. A metal cube with an edge of one foot is melted into rectangular solid one-eighth of a foot in height. What is the area of the top of the top of the new solid. Please show work/explain A. 1/64 sq.ft. B. 1/8 sq.ft. C. 1/4 sq.ft. D. 4 sq.ft. E. 8 sq.ft.
Thursday, May 8, 2014 at 5:14pm

Math
Mrs. Reed is decorating wreaths. She needs 24 in. of gold ribbon and 45 in. of white ribbon to tie around each wreath. The white ribbon is sold by the foot. About how many feet of white ribbon will Mrs. Reed need to make 18 wreaths?
Thursday, May 8, 2014 at 5:08pm

Math
36. A clock gains 20 minutes each day. if the correct time is indicated now , in how many days will it again show the first correct time? Please show work/explain A.8 B.18 C.20 D.36 E.72
Thursday, May 8, 2014 at 5:02pm

Math
The distance s in feet that a body falls in t seconds is given by the formula s=16t^2. If a body has been falling for 5 seconds, how far will it fall during the 6th second? Please show work/explain A. 16 ft. B. 80 ft. C. 176 ft. D. 400 ft. E. 576 ft.
Thursday, May 8, 2014 at 4:57pm

Math ~ Check Answers ~
***PS: I can't put the diagram so I type it.*** The diagram below shows the contents of a jar from which you select marbles at random. Inside the jar there is 16 marbles. Inside the jar there is 4 red marbles. 7 blue marbles. 5 green marbles. a. What is the probability of ...
Thursday, May 8, 2014 at 4:54pm

Math
o is the center of the regular pentagon ABCDE. How many degrees are there in OAB? Please explain or show work A.36 B.54 C.72 D.108 E.126
Thursday, May 8, 2014 at 4:50pm

math lit ,geography,history,life science,LO
Am in grade 10 and am doing these subjects and I dnt knw what kind of career choice I can choose please guys help me out please
Thursday, May 8, 2014 at 4:34pm

Math
***PS: I can't put the diagram so I type it.*** The diagram below shows the contents of a jar from which you select marbles at random. Inside the jar there is 16 marbles. Inside the jar there is 4 red marbles. 7 blue marbles. 5 green marbles. a. What is the probability of ...
Thursday, May 8, 2014 at 3:58pm

math
Joan moves into her apartment and wants to purchase a new couch. She wants to determine if there is any difference between the average cost of couches at two different stores. Test the hypothesis that there is no difference at a=0.05 Store 1 Store 2 x(sample mean).........$650...
Thursday, May 8, 2014 at 3:53pm

math
Andre picks a card at random. Without putting the first card back, he picks a second card at random. What is the probability that both cards will be hearts. The cards showing are three hearts and two diamonds
Thursday, May 8, 2014 at 3:48pm

Math
A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. a. Find the theoretical probability of selecting a pink rubber band. b. Find the ...
Thursday, May 8, 2014 at 2:44pm

Math Help!
1. Find the 4th term in the binomial expansion.(2x + 3y)^6 2. Use synthetic division and the remainder theorem to find P(a). P(x)= x^5 + 3x^4 + 3x − 7; P(-1) 3. Factor the expression on the left side of the equation. Then solve the equation. x^6 + 128x^3 + 4096 = 0 4.) ...
Thursday, May 8, 2014 at 2:35pm

Algebra 2
Hello! I need help with these four math problems. Thanks so much! :) 1.) ƒ(x) = (x^4)/4 − 3x^3 + (23x^2)/2 - 15x. Find the x values where the extremes occur. 2.) On a 10 question exam each question is worth 10 points (no partial credit). How ways can you make a 70...
Thursday, May 8, 2014 at 2:29pm

math
The current river flows at rate of 4mph. In order for a boat to travel 24 miles up river and then return in a total of 5 hours how fast must the boat be able to travel in still water?
Thursday, May 8, 2014 at 2:27pm

Math
Triangle L'M'N' is a dilation of triangle LMN. If the scale factor of the dilation is 1/5, which of the following statements is true? Triangle L'M'N' is a rotation of triangle LMN. Triangle L'M'N' is the same size as triangle LMN. Triangle L...
Thursday, May 8, 2014 at 2:21pm

math probability
A bag contains 12 marbles, 7 red and 5 green. The reds are numbered 1-7 and the green are numbered 1-5. If you pick 4 without replacing what is the probability that 2 of the 4 are numbered 5?
Thursday, May 8, 2014 at 1:28pm

Math
The distance require to stop a car varies directly as the square of its speed. If 250 feet are required to stop a car traveling 60 miles per hour, how many feet are required to stop a car traveling 96 miles per hour!
Thursday, May 8, 2014 at 1:04pm

Math
I have no idea how to calculate z scores Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box of vegetables to be 180 oz. with a standard deviation of 8 oz. He wonders what percent of the vegetable ...
Thursday, May 8, 2014 at 12:45pm

math
A customer is withdrawing $890 and wants as many $50 bills as possible. How many $50 bills should the Teller give her?
Thursday, May 8, 2014 at 12:36pm

Math
The trapezoid above has a base of 38 m and a height of 12 m. Which set of dimensions would produce a similar figure? A. base = 114 m, height = 36 m B. base = 38 m, height = 36 m C. base = 119 m, height = 36 m D. base = 109 m, height = 36 m
Thursday, May 8, 2014 at 11:41am

Math
Rectangles ABCD and EFGH are similar figures because angles A, B, C, and D are congruent to angles E, F, G, and H, respectively. If DA equals 19 units, AB equals 8 units, and HE equals 133 units, what does EF equal? A. 56 units B. 122 units C. 7 units D. 315.88 units
Thursday, May 8, 2014 at 11:25am

math
The shadow of a 5-foot tall post is 10 feet long. At the same time a tree casts a shadow that is 24 feet long. What is the height of the tree? A. 2 feet B.14 feet C. 12 feet D. There is not enough information to solve the problem
Thursday, May 8, 2014 at 11:19am

math
Consider the line 9x - 7y =4 What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this line?
Thursday, May 8, 2014 at 9:29am

Math
There is an expression some people use that says, “What you put into it is what you get out of it.” People might use this expression to describe your skills at a sport or activity and how that relates to the amount of time and effort you spend practicing that ...
Thursday, May 8, 2014 at 9:23am

Math
A satellite dish in storage has parabolic cross sections and is resting on its vertex. A point on the rim is 4 ft high and is 6 ft horizontally from the vertex. How high is a point which is 3 ft horiozntally from the vertex? Draw a sketch and solve.
Thursday, May 8, 2014 at 8:36am

math
two forces of magnitudes 7N and 9N act at an angle alpha such that sin alpha=0.4. Find the magnitudes of the two possible resultants
Thursday, May 8, 2014 at 8:34am

Math
The numerator of a simple fraction is 2 less than its denominator. The sum of this fraction and its reciprocal is 2 4/35. Find this fraction.
Thursday, May 8, 2014 at 8:27am

Math
Two forces of magnitude 15N and 4root2N are acting in the directions 3i-4j and i+j respectively, find the magnitude of the resultant of the two forces.
Thursday, May 8, 2014 at 8:19am

Math - Algebra
In a thin rectangular tin sheet 8x12 sheet, you have to cut a rectangular opening. The area of the opening has to be 45 feet, and its edges have to have an equal distance from the edges of the sheet. Determine this distance.
Thursday, May 8, 2014 at 8:05am

(19) Chemistry - Science (Dr. Bob222)
Use the following information to answer this question: Cu+(aq) + e- → Cu(s) E° = 0.521V Cu2+ (aq) + e- → Cu+ (aq) E° = 0.153 V. Given these half cell reactions, an aqueous solution of Cu+ ion in the absence of O2(g) : A. will be thermodynamically stable B. ...
Thursday, May 8, 2014 at 7:08am

Math
How many different ways can the digits 1,2,3,4,5 be arranged to create a five digit password
Thursday, May 8, 2014 at 7:02am

math -promissory notes
1.Joanne borrowed RM5000 for 180 days at a discount rateof 8 1/2 %.find the proceeds. 2.A businessman needs RM12000 for four months. What should be the size of the loan if his bank charges a discount rate of 9.5%.
Thursday, May 8, 2014 at 6:24am

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