Friday
May 29, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

math
One ounce of icing covers an area of about 12 inches2. How many ounces of blue icing are needed to cover the top of a round cake that has a diameter of 14 inches?
Monday, May 4, 2015 at 5:46pm

Math
1. Given the function rule f(x)= x^2 - 3x + 2, what is the output of f(-2)? A. 12 B. 4 C. -8 D. 0 2. 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? A. E(h) = 10h B. E(h...
Monday, May 4, 2015 at 5:38pm

Math
Sam shares $2 of her $12 dollar allowance every week. What fraction of her allowance does she share? 1/2 1/3 1/6 1/12
Monday, May 4, 2015 at 5:37pm

math 0312
The current in a stream moves at a speed of 9 mph. A boat travels 17 mi upstream and 17 mi downstream in a total time of 13 hrs. What is the speed of the boat in still water?
Monday, May 4, 2015 at 5:34pm

math
dan loves fruit dan paid $4.53 for berries ,and $1325 for peaches with a $20 bill . how much change did dan received
Monday, May 4, 2015 at 5:08pm

Math 222
This is the second part to my first question A quadratic function Graph the function g(x) = 4 − x2, and state the domain and range. Solution We plot enough points to get the correct shape of the graph. See Fig. 11.10 for the graph. The domain is (−‡, &#...
Monday, May 4, 2015 at 5:01pm

Math 222
How do I graph this problem? g(x)= sqrt x-1
Monday, May 4, 2015 at 5:00pm

Math
Carmen and Susan are members of their school’s running club. The length of the circular track at the school is 1/10 of a mile. In the time it takes Carmen to run 3 times around the track, Susan runs 4 times around the track. A. In the time it takes Carmen to run 12 times ...
Monday, May 4, 2015 at 4:54pm

Math
Andrew's dog Bubba has an exercise area behind the house. A stake in the ground has a 12 foot rope tied to it. The other end of the rope is fastened to Bubba's collar. If Bubba travels in a circular path around the stake. What is the largest Circumference allowed by ...
Monday, May 4, 2015 at 3:58pm

math
a recipe calls for 2/3 cups of chocolate chips, how many batches can be made with 6 cups of chocolate chips?
Monday, May 4, 2015 at 3:29pm

math
Joe starts a gym. In the first year, 300 people join. If the membership grows at an annual rate of 4%, how many members will there be after 5 years?
Monday, May 4, 2015 at 2:22pm

Math
1. A bag contains 9 tiles numbered 1 to 9. P(4) = (1 point) experimental; the result is found by repeating an experiment. experimental; the result is based on the number of possible outcomes. theoretical; the result is found by repeating an experiment. theoretical; the result ...
Monday, May 4, 2015 at 1:54pm

math functions
1. Find the next three terms in the sequence. 30,22,14,6… a. -3,-12,-21 b. -1.-8,-15 c. -1,-2, 3 d. -2,-10,-18 2. Write a rule for the sequence. 4,8,16,32,….. a.Start with 4, and multiply by 2 repeatedly. b.Start with 4, and add 8 repeatedly. c.Start with 4, and add ...
Monday, May 4, 2015 at 1:19pm

math
If you roll a pair of number cubes 50 times, what would be the experimental probability of P(odd and odd)
Monday, May 4, 2015 at 10:56am

math
A farmer has $5200 to spend on fencing to make a pen along a river. A local company tells the farmer that they can build the pen for $6.50/m. The manager suggests a pen in the shape of a right triangle with the hypotenuse along the river. What are the dimensions.
Monday, May 4, 2015 at 10:14am

math
1. A(-3;4) is a point on a circle with centre at the origin. a.determine the coordinates of B, if AB is a diameter. b. Show that point C(0;5) lies on this circle. c.show that ACB has a magnitude of 90degrees. 2.a.ddetermine the equation of the circle with AC as diameter, if A ...
Monday, May 4, 2015 at 9:23am

Math 222
This is the second part to my first question A quadratic function Graph the function g(x) = 4 − x2, and state the domain and range. Solution We plot enough points to get the correct shape of the graph. See Fig. 11.10 for the graph. The domain is (−‡, &#...
Monday, May 4, 2015 at 8:33am

Math 222
How do I graph these two problems? y = −x2 g(x)= sqrt x-1
Monday, May 4, 2015 at 8:29am

math
The side of a square is measured to be 16 ft with a possible error of ±0.1 ft. Use differentials to estimate the error in the calculated area. Include units in your answer.
Monday, May 4, 2015 at 3:18am

math
A new car is purchased for the price of $35,000. If the value of the car depreciates at a rate of 12% per year, when will the car be worth half of the original rate? I put down (this was wrong): 35000 (0.12/12) = 75000 350 (0.12/12) 175 = 612.5 = about 6 years
Monday, May 4, 2015 at 2:48am

math
What is the maximum volume in cubic inches of an open box to be made from a 12-inch by 16-inch piece of cardboard by cutting out squares of equal sides from the four corners and bending up the sides? Your work must include a statement of the function and its derivative. Give ...
Monday, May 4, 2015 at 2:20am

math
The position function of a particle in rectilinear motion is given by s(t) s(t) = t3 – 9t2 + 24t + 1 for t ≥ 0. Find the position and acceleration of the particle at the instant the when the particle reverses direction. Include units in your answer.
Monday, May 4, 2015 at 1:31am

calc (please help)
A wedge is cut from a right circular cylinder of radius r by two planes, one perpendicular to the axis of the cylinder and the other making an angle (beta) with the first. Find the volume of the wedge by slicing perpendicular to the y-axis. Please show all steps Note: this is ...
Sunday, May 3, 2015 at 11:14pm

Math--ONE QUESTION
Use arrow notation to describe the translation of point P(-9 , 8) to point (-14, 0). (x,y) -> (x + 5,y -8) (x,y) - > ( x - 8, y + 5) (x,y) -> (x - 5, y + 8) (x,y) -> (x - 5, y - 8 )
Sunday, May 3, 2015 at 10:49pm

Math Trigonometric Identities
1/sinx - sinx = cosx/tanx
Sunday, May 3, 2015 at 10:34pm

Math Trigonometric Identities
Is this correct? (sinx - cosx)^2 = 1 - 2sinxcosx LS = sin^2x - 2sinxcosx + cos^2x = 1 - cos^2x - 2sinxcosx + cos^2x = 1 - cos^2x + cos^2x - 2sinxcosx = 1 - 2sinxcosx LS = RS
Sunday, May 3, 2015 at 10:10pm

Math HELPPP!
Andrew's dog Bubba has an exercise area behind the house. A stake in the ground has a 12 foot rope tied to it. The other end of the rope is fastened to Bubba's collar. If Bubba travels in a circular path around the stake. What is the largest Circumference allowed by ...
Sunday, May 3, 2015 at 10:08pm

Math
The solution set of radical(x - 1) (is greater than sign) 5 is the set of all real numbers x such that: F. x (is greater than sign) 4 G. x (is greater than sign) 6 H. x (is greater than sign) 24 J. x (is greater than sign) 25 K. x (is greater than sign) 26
Sunday, May 3, 2015 at 9:51pm

Math
The measure of each interior angle of a regular polygon with n sides is [(n - 2)180 / n] degrees. What is the measure of each interior angle of a regular polygon with n sides, in radians? A. (n - 2)pi / 4n B. (n - 2)pi / 2n C. (n - 2)pi / n D. (n - 2)2pi / n E. (n - 2)4pi / n
Sunday, May 3, 2015 at 9:47pm

Math
You draw five cards from a standard deck of 52 cards. P(heart) = 4/5 (fraction). What type of probability is illustrated and why? Theoretical; the result is based on the number of possible outcomes** Theoretical; the result is found by repeating an experiment Experimental; the...
Sunday, May 3, 2015 at 9:38pm

Math
If tan A = a / b, a (is greater than sign) 0, b (is greater than sign) 0, and 0 is (less than sign) A (is less than sign) pi / 2, then what is cos A? a. a / b B. b / a C. a / radical(a^2 + b^2) D. b / radical(a^2 + b^2) E. radical(a^2 + b^2) / b
Sunday, May 3, 2015 at 9:35pm

Math trigonometric Identities
Is this correct? (sinx - cosx)^2 = 1 - 2sinxcosx LS = sin^2x - 2sinxcosx + cos^2x = 1 - cos^2x - 2sinxcosx + cos^2x = 1 - cos^2x + cos^2x - 2sinxcosx = 1 - 2sinxcosx LS = RS
Sunday, May 3, 2015 at 9:24pm

Math 222
Why is it so difficult to get help when someone has posted a question 8 hours ago???
Sunday, May 3, 2015 at 8:24pm

Math
Pearland Medical Center owns a small satellite clinic, specializing in General Practice, located at nearby Pearland airport. General Practice Clinic’s sole payor is Air Health, a health care plan that covers the airport employee population. Air Health has been paying on a...
Sunday, May 3, 2015 at 6:47pm

Math
For $4.50 a grocer buys a case of fruit which contains 14 dozen. She knows that four dozen will spoil before sells them. At what price per dozen must she sell the good ones to gain 1/3 of the whole cost.
Sunday, May 3, 2015 at 6:35pm

Math
Three individuals form a partnership and agree to divide the profits equally. X invests $4,500, Y invests $4,500, and Z invests $1,000. If the profits are $1,500, how much less does X receive than if the profits were divided in proportion to the amount invested?
Sunday, May 3, 2015 at 6:19pm

Math
What is the next number in this series? 2 1 .5 .25 .125
Sunday, May 3, 2015 at 6:12pm

math
In printing an article of 21,000 words, a printer decides to use two sizes of type. Using the larger type, a printed page contains 1,200 works. Using the smaller type type, a page contains 1,500 words. The article is allotted 16 full pages in a magazine. How many pages must be...
Sunday, May 3, 2015 at 6:08pm

Math
The ratio of a to b is 3 to 4, and the ratio of c to b is 1 to 2. What is the ration of a to c? F. 1 to 1 G. 3 to 1 H. 3 to 2 J. 3 to 8 K. 6 to 1
Sunday, May 3, 2015 at 6:07pm

math
When wire is selling at $.0125 a foot, how many feet can you buy for $1.00?
Sunday, May 3, 2015 at 5:47pm

Math. first and last repost. please help
Find the function that has the greater rate of change As x increases by 1, y increases by 3. The graph has a line and 3 dots. the dots are labeled- x: -1 | 0 | 1 y: 0 | 2 | 4 A. the slopes are equal B. the graph has a greater slope C. the function rule has a greater slope**** ...
Sunday, May 3, 2015 at 5:46pm

Math
A train travels 70 feet in 1/10 second. At this same speed, how many feet will it travel in 3 1/2 seconds?
Sunday, May 3, 2015 at 5:38pm

Math
Thomas and Jonelle are playing darts in their garage using the board with the point values for each region shown below. The radius of the outside circle is 10 inches, and each of the other circles has a radius 2 inches smaller than the next larger circle. All of the circles ...
Sunday, May 3, 2015 at 5:35pm

Math please help.
Find the function that has the greater rate of change As x increases by 1, y increases by 3. The graph- x: -1 | 0 | 1 y: 0 | 2 | 4 A. the slopes are equal B. the graph has a greater slope C. the function rule has a greater slope**** D. none of the above
Sunday, May 3, 2015 at 5:27pm

Math
What would the grapg of 10/x look like? A. a straight line B. a parabola C. a curve*** D. none of the above What would the graph of y=3/4x - 7/8 look like? A. a straight line*** B. a parabola C. a curve D. none of the above y=x2 + 1 look like? A. straight line B. a parabola...
Sunday, May 3, 2015 at 5:05pm

math
which function has the greater rate of change? x-axix: -1 | 0 | 1 | 2 | y-axis: 0 | 1 | 2 | 3 | the graph has a line and 3 dots on the line. the first dot is 0, -1 the second dot is 0, 1 the third dot is 1, 2 A. the rates of change are equal B. the graph has a greater rate of ...
Sunday, May 3, 2015 at 5:01pm

Math
On September 1, a dress was priced at $90. On October 1, the price was reduced by 20%. On November 1, the price was further reduced by 25% of the October 1 price and marked FINAL. What percent of the original price was the FINAL price? F. 40% G. 45% H. 55% J. 60% K. 77.5%
Sunday, May 3, 2015 at 4:48pm

Math
(sinx - cosx)(sinx + cosx) = 2sin^2x -1 I need some tips on trigonometric identities. Why shouldn't I just turn (sinx + cosx) into 1 and would it still have the same identity?
Sunday, May 3, 2015 at 2:25pm

Math 222
How do I graph these two problems? y = −x2 g(x)= sqrt x-1
Sunday, May 3, 2015 at 1:52pm

math
the path of a cliff diver as he dives into a lake is given by the equation y=-(x-10)power of 2 + 75...where y meters is the divers height above the water and x metres is the horizontal distance travelled by the diver. what is the maximum height the diver is above the water?
Sunday, May 3, 2015 at 1:43pm

Math-Probability
In 2008, 1.01% of returns were audited, 85.6% returns received a refund, 49,907 the number examined resulting in a refund, 1,342,674 number examined resulting in no refund. If a taxpayer receives a refund, what is the likelihood that the taxpayers return will be examined? How ...
Sunday, May 3, 2015 at 1:01pm

Math
Evaluate the following expressions tan(−22/15π)
Sunday, May 3, 2015 at 11:40am

math
stuck on this problem. i started with x-2y+4z=23. here is the problem: Three men, each having denarii, found a purse containing 23 denarii. The first man said to the second, “If I take this purse, I will have twice as much as you.” The second said to the third, “...
Sunday, May 3, 2015 at 11:36am

math
what formular do you use to find the area of an angle PQR
Sunday, May 3, 2015 at 10:25am

Math
Integral of (1/root over 1-x^2)*(1/inverse of sin x*dx) .what is the value?
Sunday, May 3, 2015 at 9:57am

Math
Is 8x^2 + x^2 - 7x - x + 2x + 5y - 3y equal to 9x^2 - 8x + 2y or 9x^2 - 6x + 2y?
Sunday, May 3, 2015 at 1:30am

math
A wall in Marcus's bedroom is 8 2/5 feet high and 18 1/3 feet long. If he paints 1/2 of the wall blue
Sunday, May 3, 2015 at 12:33am

Math
I need help proving this identity 1/cosx - cosx = sinxtanx
Saturday, May 2, 2015 at 11:18pm

Math - Trigonometry
I need help proving this identity 1/cosx - cosx = sinxtanx
Saturday, May 2, 2015 at 10:17pm

Math - Trigonometry
I need help proving this identity 2sin^2x - 1 = sin^2x - cos^2x
Saturday, May 2, 2015 at 10:03pm

Math - Trigonometry
I need help proving this identity cscx + secx = (cosx + sinx)(secx)(cscx)
Saturday, May 2, 2015 at 9:35pm

Math
Barb is going to cover a rectangular area 8 feet by 10 feet with rectangular paving blocks that are 4 inches by 8 inches by 2 inches to make a flat patio. What is the minimum number of paving blocks she will need if all the paving blocks will face the same direction? (Note: ...
Saturday, May 2, 2015 at 7:08pm

Math HELP! Ms.Sue
The stem-and-leaf plot shows the heights in centimeters of Teddy Bear sunflowers grown in two different types of soil. Soil A| |Soil B | 5 |9 5 2 1 1| 6 |39 510| 7 |023678 21| 8 |3 0| 9 | Key: 9|6 means 69, Key: 5|8 means 58 a) Describe the overlap of the two sets of data. b) ...
Saturday, May 2, 2015 at 6:31pm

MATH
which equation can be used to find the measure of an angle that is supplementary to m EGB?
Saturday, May 2, 2015 at 6:21pm

consumer math
Mentros has an income of $1240 he spends on expences $744 how much can he spend on other things?
Saturday, May 2, 2015 at 3:53pm

math 1
jake wanted to measure the length, l, of the pond,so he drew this diagram of two similar triangles. what is the approximate length, l, of the pond
Saturday, May 2, 2015 at 2:43pm

math
What am I doing wrong? Problem: 2x^2(5x^2-1x-4) Answer: 10x^4-2x^3-8^2
Saturday, May 2, 2015 at 2:14pm

math
You were given 10 math problems for homework. You completed 310 of them at school. Which equation shows how to find the fraction of the problems you still must do to complete your homework?
Saturday, May 2, 2015 at 12:16pm

math
an artist intends to paint a 60-square-foot mural on a large wall. find the dimensions of the mural if the artist leaves a border of uniform width around it.
Saturday, May 2, 2015 at 2:22am

Math Calc
If a ball is thrown vertically upward from the roof of 48 foot building with a velocity of 112 ft/sec, its height after t seconds is s(t)=48+112t–16t^2. What is the maximum height the ball reaches "in ft"?What is the velocity of the ball when it hits the ground...
Friday, May 1, 2015 at 11:04pm

Math
A fan with a diameter of 10cm is spinning at 25 revolutions per minute clockwise. The fan's reference blade starts pointing directly upwards. Determine an equation for a sinusoidal function that represents the fan's reference blade's vertical distance from the ...
Friday, May 1, 2015 at 10:40pm

math
Sandra deposits $3000 in an ordinary annuity at the end of each semiannual period at 8% interest compounded semiannually. Find the amount she will have on deposit after 17 years
Friday, May 1, 2015 at 10:10pm

Math- Trigonometric Functions
A fan with a diameter of 10cm is spinning at 25 revolutions per minute clockwise. The fan's reference blade starts pointing directly upwards. Determine an equation for a sinusoidal function that represents the fan's reference blade's vertical distance from the ...
Friday, May 1, 2015 at 9:09pm

MATH
given A(a,2) B(3,4) and C(-2,1). if A is at the same distance to the point B and C find a
Friday, May 1, 2015 at 8:17pm

Math
A woman has twice as many dimes as quarters in her purse. If the dimes were quarters and the quarters were dimes, she would have $1.20 more than she now has. How many of each does she have?
Friday, May 1, 2015 at 8:11pm

math
Kevin uses 1 1/4 cups of milk to make 1 cake . what is the total amount of milk Kevin needs to make 6 of these cakes ?
Friday, May 1, 2015 at 7:07pm

Math HELP! Ms.Sue
Gather a set of data. Choose a small sample, between 10 and 20 pieces of data, and a simple value to measure, such as the ages of visitors in a park, or the number of text messages each person in your family receives in one day. Choose a display for your data, such as a ...
Friday, May 1, 2015 at 4:46pm

math
Kelly is 13 years younger than twice Jane's age. Write an expression for Kelly's age. Let x represent Jane's age. I tried every thing and I could still not get this right.
Friday, May 1, 2015 at 3:24pm

math
3x3−27x2+60x
Friday, May 1, 2015 at 2:39pm

Math
How to find the asymptotes of k(x) = 0.5csc(2x)?
Friday, May 1, 2015 at 2:28pm

math .
louisville is 14 mi due north of farmville, stanton is due east of farmville, and louisville is 25 mi from stanton. how far apart are farmville & stanton? round to the nearest tenth (of a mile). -- im not sure how to do this problem
Friday, May 1, 2015 at 2:22pm

Math (pleaseplease help)
hey MRS Sue
Friday, May 1, 2015 at 1:23pm

math
the scale on a map is 1 inch equals 5 feet. what is the distance between two points on the map that are 8 1/2 inches apart on the map
Friday, May 1, 2015 at 1:18pm

math
hey ms sue can i talk to you
Friday, May 1, 2015 at 12:55pm

Math
The scores of 10 students on their midterm exam (x) and on their final (y) yielded the following data. Σx = 638 Σx2 = 43,572 Σy = 690 Σy2 = 49,014 Σxy = 44,636
Friday, May 1, 2015 at 12:47pm

math
what is 3,563-3,957
Friday, May 1, 2015 at 12:45pm

math
what is 630/3
Friday, May 1, 2015 at 12:32pm

math
60 people are coming to a event. 7 rows of seats. 8 seats in each row. what does the p represent?
Friday, May 1, 2015 at 12:13pm

Math (pleaseplease help)
Rolinda's first five Spanish test scores are 85, 85, 60, 62, and 59. a. Find the mean, median and mode of the scores. Round to the nearest tenth, if necessary.* b. Which of these measures best supports Rolinda's claim that she is doing well in her Spanish class? c. Why...
Friday, May 1, 2015 at 11:42am

Math
ack's science teacher gave each student in his class 15.0 grams of an unknown substance to identify. Each student was required to verify the mass of their substance by taking four measurements. Which of Zack's measurement was the most accurate of the four recorded?
Friday, May 1, 2015 at 11:33am

math
The boundary of a park is shaped like a circle. The park has a rectangular playground in the center and 2 square flower beds, one on each side of the playground. The length of the playground is l and its width is w. The length of each side of the flower beds is a. Which two ...
Friday, May 1, 2015 at 10:06am

Math
Using the dot plot for the hours students spend watching TV, where do you think the center of the data is? Explain how you found your answer.
Friday, May 1, 2015 at 9:17am

Math
A transport company charges an artist $6 for each picture safety delivered but had to pay the artist $21 for every picture damaged during the delivery.if. The artist paid a total of $6246.66 inclusive of 7 percent GST to the company for the delivery of 1000 pictures were ...
Friday, May 1, 2015 at 2:32am

math ( help please instantly )
Find the LCM of the following : 1)m^2 - 7m + 12 and m^3 - 2m^2 - 2m -3 2) (r - 1) ^3 and r^4 + r^2 +1 and r^3 - 1 3) 3(p^3 - 1) and (4p^2 - 1 ) and 6(2p^2 + 3p - 2 )
Friday, May 1, 2015 at 2:21am

Math
For each of the following perform the given operations. If possible , write your answer as a Mixed Number. a) 9 9/10 × 8 8/9 b) -5 5/12 ÷ 3 1/18 c) 15 11/15 + 14 5/9 + 7 3/5 d) 42 7/24 -23 19/30
Friday, May 1, 2015 at 12:26am

math
For eacg of the following , perform the given operations. Make sure to Reduce. a) 19/20 -5/8 + -7/10 b)24/40 ÷ (30/14)(25/63) c) (-24/25)(-25/-26)(-26/27)(-27/-28)(-28/2​9)(-29/-30)
Friday, May 1, 2015 at 12:16am

Math
Write the following ratio as a simplified fraction or improper fraction. 22 nickles to 7 quarters
Friday, May 1, 2015 at 12:10am

Math
A rectangle has a base of 32 inches and a height of 14 inches. What is the area and perimeter of the rectangle?
Friday, May 1, 2015 at 12:00am

Math
Use the order of operations to simplify each of the following : a) 4*3^3- 54÷6+5^2 b)314-3 [2^5 -(9- 4 ) ^2 +3]^2
Thursday, April 30, 2015 at 11:55pm

Math
A square which is 7 inches on a side is removed from a triangle which is a base and height of 14 inches. What is the area of the remaining region?
Thursday, April 30, 2015 at 11:50pm

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