Friday
July 31, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

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 by Anonymous

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 by Anne

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 by Anonymous

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 by Anonymous

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 by Anonymous

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 by Anonymous

Math 222
How do I graph these two problems? y = −x2 g(x)= sqrt x-1
Sunday, May 3, 2015 by Tika-PLEASE HELP

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 by sharon

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 by LBA1mt

Math
Evaluate the following expressions tan(−22/15π)
Sunday, May 3, 2015 by Anonymous

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 by Mirella

math
what formular do you use to find the area of an angle PQR
Sunday, May 3, 2015 by sheron

Math
Integral of (1/root over 1-x^2)*(1/inverse of sin x*dx) .what is the value?
Sunday, May 3, 2015 by Srikar reddy

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 by Anonymous

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 by M

Math
I need help proving this identity 1/cosx - cosx = sinxtanx
Saturday, May 2, 2015 by Anonymous

Math - Trigonometry
I need help proving this identity 1/cosx - cosx = sinxtanx
Saturday, May 2, 2015 by Anonymous

Math - Trigonometry
I need help proving this identity 2sin^2x - 1 = sin^2x - cos^2x
Saturday, May 2, 2015 by Anonymous

Math - Trigonometry
I need help proving this identity cscx + secx = (cosx + sinx)(secx)(cscx)
Saturday, May 2, 2015 by Anonymous

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 by Anonymous

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 by Anon101

MATH
which equation can be used to find the measure of an angle that is supplementary to m EGB?
Saturday, May 2, 2015 by Giana

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 by sindy

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 by Brittany

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

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 by john

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 by Tina

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 by Jorge

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 by Anonymous

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 by shalanda

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 by Anonymous

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 by chevlios

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 by Pinkie

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 by autumn

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 by Anon101

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 by How the heck am I suppose to solve this

math
3x3−27x2+60x
Friday, May 1, 2015 by mary

Math
How to find the asymptotes of k(x) = 0.5csc(2x)?
Friday, May 1, 2015 by Anonymous

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 by Anonymous

Math (pleaseplease help)
hey MRS Sue
Friday, May 1, 2015 by Gabe

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 by july

math
hey ms sue can i talk to you
Friday, May 1, 2015 by alyssa

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 by Amber

math
what is 3,563-3,957
Friday, May 1, 2015 by alyssa

math
what is 630/3
Friday, May 1, 2015 by alyssa

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 by alyssa

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 by Caleidoscope

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 by Chasidy

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 by desaray

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 by Serra

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 by Bernice

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 by Anyone please help

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 by Preia

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 by Preia

Math
Write the following ratio as a simplified fraction or improper fraction. 22 nickles to 7 quarters
Friday, May 1, 2015 by Preia

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 by Preia

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 by Preia

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 by Preia

Math
Shelly and Andy are playing a game using a number cube and flips the coin. What are all possible outcomes during one turn? How many outcomes are in the sample space?
Thursday, April 30, 2015 by Pat

Math
A painting shaped like a circle had a diameter of 20 inches. A circular frame extends 2 inches around the edge of the painting. How much wall space does the framed painting need? Use 3.24 for pi.
Thursday, April 30, 2015 by J J

Math
If I were to graph this equation y= 2x + 0.5 would I graph x as 2 and y as .5?
Thursday, April 30, 2015 by Island Grandma

5th grade math
Jeff put small box that is 12 inches long, 8 inches wide, and 4 inches tall inside a box that's 20 inches long, 15 inches wide, and 9 inches high. How much space is left in the larger box?
Thursday, April 30, 2015 by Chris

math
Small cubes with edge lengths of 1/4 inch will be packed into the right rectangular prism. The dimensions are 4 1/2 inches in length, 5 inches in width, and 3 3/4 inches in height. Each cube is 1/4 inches. How many small cubes are needed to completely fill the right ...
Thursday, April 30, 2015 by Troy

Math
THE CIRCUMFERENCE OF A CIRCLE IS 31.4 centimeters. What is the area of the circle?
Thursday, April 30, 2015 by Jimmie

Math
-3(9+x)=33
Thursday, April 30, 2015 by Christine

math
a person had to drive 1417 miles. They drove 9 hours a day for 3 days. How many miles per hour did they drive?
Thursday, April 30, 2015 by Allie

Math
Find the approximate area of each circle. Use the value of pi that makes the math the simplest for you. In the example, it's a circle with 14cm written on it in the middle. I'm
Thursday, April 30, 2015 by Kimm

Math
Small cubes with edge lengths of 1/4 inch will be packed into the right rectangular prism. How many small cubes are needed to completely fill the right rectangular prism? The height is 3 3/4 inches, the width is 5 inches, length is 4 1/2 inches. ( the small cubes will be 1/4 ...
Thursday, April 30, 2015 by Jay

math
What will the graph look like for a system of equations that has no solutions? A. The lines will be perpendicular. B. The lines cross at one point. C. Both equations will form the same line. D. The lines will be parallel. Is the answer B?? Thank you
Thursday, April 30, 2015 by Claire

Math 12
What is the probability of being dealt four cards of a kind in a five card hand? I know it is 0.00024, but I need this as a fraction and I don't know how to do that.
Thursday, April 30, 2015 by Anonymous

math
X|-1|0|1|2| y|-2|1|4|7| What is the rule for the function shown in the table? A.y= 1/3x+1 B.y=3x+1 C.y=1/3x D.y=1/2x+1 Is the answer B??
Thursday, April 30, 2015 by bad with math

Math
Which of the following expressions is equivalent to (-2x^5 y^2)^4 A. -16x^20 y^8 B. -8x^10 y^8 C. -8x^9 y^6 D. 16x^9 y^6 E. 16x^20 y^8
Thursday, April 30, 2015 by Anonymous

Math
Find the volume of the solid generated by revolving the region bounded by y=x+(x/4), the x-axis, and the lines x=1 and x=3 about the y-axis. I've drawn the graph and I understand which part is being rotated, but I'm having trouble setting up the equation. Because there...
Thursday, April 30, 2015 by Eliana

Consumer Math- HELP
1. Fred salmon purchased six 1,000 bonds at 92. The bonds pay 6.5% What was the cost of the bonds? What was the total annual interest? What is the yield (to the nearest percent)? 2. John Tucker is interested in purchasing stock. He wants to determine the costs. Number of ...
Thursday, April 30, 2015 by Lauren

math
The cost of a minibus was Shilling 950,000. It depreciated in value by 5% per year for the first two years by 15% per year for the subsequent years. (a) Calculate the value of the minibus after years (b) After 5 years the minibus was sold through a dealer at 25% more than its ...
Thursday, April 30, 2015 by kudu

Math
Kaya drove 200 miles in 5 hours of actual driving time. By driving an average of 10 miles per hour faster, Kaya could have saved how many hours of actual driving time? A. 1 / 6 B. 2 / 3 C. 7 / 10 D. 1 E. 4
Thursday, April 30, 2015 by Anonymous

math
The ferris wheel shown makes 12 revolutions per ride.how far would someone travel during one ride
Thursday, April 30, 2015 by Anonymous

Math
The manager of the theater wants to sell the popcorn in a cone with a diameter of 7 inches. What does the height of the cone need to be in order to hold the same amount of popcorn as the cylinder?
Thursday, April 30, 2015 by Alanda

math
A ship leaves an island (5°N, 45° E) and sails due east for 120 hours to another island. Average speed of the ship is 27 knots. (a) Calculate the distance between the two islands (i) In nautical miles (ii) In kilometers (b) Calculate the speed of the ship in kilometers...
Thursday, April 30, 2015 by kudu

Consumer math
A deposit of 4,000 at 9.5% for 270 days
Thursday, April 30, 2015 by Alexis

math
There are two sign posts A and B on the edge of the road. A is 400 m to the west of b. A tree is on a bearing of 060° from A and a bearing of 330° from B. Calculate the shortest distance of the tree from the edge of the road.
Thursday, April 30, 2015 by kudu

Math
Anna saved $20 in a jar each month for 2 1/2 years. She spent 75% of her savings on a computer. How much money did Anna have left in the jar?
Thursday, April 30, 2015 by Sarah

Math
You and a friend go to the movies and split the cost of the movie tickets and snacks. You pay the bill. You tell your friend he owes only $9 because you owed him $4 from the last time you went to the movies. How much was the total bill? Let b represent the total bill. Identify...
Thursday, April 30, 2015 by Priscilla

Financial math
Taylor is purchasing a home for $235,000. She is putting 20% down. She has qualified for a 30 year mortgage at 4.5% APR. Calculate her monthly payment.
Thursday, April 30, 2015 by Kay

Discrete Math
3. A club with 8 women and 6 men needs to choose two different members to be president and vice president (combination or permutation). a. In how many ways is this possible? b. In how many ways is this possible if women will be chosen as president and a man as vice president? ...
Thursday, April 30, 2015 by Peace

Discrete Math
Determine where the big O(g(x)) for following functions • F(x)=2xlogx+1 • F(x)=3x -2x +1 • F(x)=4x -2x -3x +4 • F(x)=( x +1)/( x +4) • F(x)=(x+1)/(x-4
Thursday, April 30, 2015 by Peace

Discrete Math
15 Please calculate P(E|F) given P(F|E)=0.3, =0.25 and P(E)=0.6
Thursday, April 30, 2015 by Peace

Discrete Math
14 There 2 dies. One is 8 sides (octahedral die) and another is 6 sides (normal). All are fair dies. a. What is the expected value when the 2 dies tolled together b. What is the variance when the 2 dies tolled together
Thursday, April 30, 2015 by Peace

Discrete Math
13 Define F as failed in the diagnostic test that P(F)=0.08 and A as failed in the real test. Given a student was failed in the diagnostic test, the probability he/she is also failed P(A|F)=0.90. The conditional given the student was not failed in the diagnostic test and not ...
Thursday, April 30, 2015 by Peace

Discrete Math
12 A computer science department has a probability of 0.35 that a senior receives a job offer in IT before graduation. Random select 8 senior students • What is the probability that 5 students received offers before graduation? • What is the probability only 1 ...
Thursday, April 30, 2015 by Peace

Discrete Math
There are 8 black balls and 8 white balls in a box and cannot be seen through: • How many balls must be picked up in order to guarantee there are three balls having the same color • How many balls must be picked up in order to guarantee there are three white balls
Thursday, April 30, 2015 by Peace

Math
Writing to Explain Yuri says that the difference between the least amount of time it takes a student to say the alphabet and the greatest amount of time is 4 1/2 seconds. Do you agree? Explain.
Thursday, April 30, 2015 by Mits

Math
Reason A new student joins Ms. Sousa's class. That student can say the alphabet in 3 1/2 seconds. What is the new difference between the greatest length of time and the least length of time? A. 4 1/2 seconds B. 4 seconds C. 3 1/2 seconds D. 3 seconds
Thursday, April 30, 2015 by Mits

Math
Allie's plant has a height of 6 meters. rayon's plant grows 3/10 meter higher . How high does Rajon's plant grow?
Thursday, April 30, 2015 by Smita

Math
Which is NOT true about the Table? x: 1 | 2 | 3 | 4 | y: 1 | 4 | 9 | 16 | A. it shows a linear function B. x increases by 1 each time C. the rate of change is not constant D. y increases by a different value each time D please check
Thursday, April 30, 2015 by Anonymous

Math
In 1982 , the California Minimum wage was $3.35.Suppose that a bartender in 1982 makes minimum wage plus $80 per night in tips,and that they work full time(8 hrs per day, 5 days per week, 50 weeks per year) Considering a standard inflation rate of 4.5% what was his annual ...
Thursday, April 30, 2015 by Preia

Math
Mr. Register went out for enchiladas. After eating as much as he could consume the bill ended up being $317.24( they were really good enchiladas, and there were alot of them)The tax rate is 8.5 % and a gratuity of 15% was automatically added ( after tax) to the bill. Because ...
Thursday, April 30, 2015 by Preia

Math
Using the formula. I =Prt ,calculate the simple interest where t=1/n and n is the number of periodd per year for compounding. You have $20,000 and wished to invest it in one of two ways. Option A: You may invest it in a certificate of deposit for 10 years at an interest rate ...
Thursday, April 30, 2015 by Preia

math help me
Solve: 6C3 (1 point) 120 720 20 240 2. Which is not a combination? (1 point) choosing 3 toppings for your pizza lining 3 students up in a row choosing 2 desserts from a tray of 10 choosing 5 students to represent a class of 30 3. How many ways can you choose 3 dishes from a ...
Thursday, April 30, 2015 by maddi

Math
For each of the following, simplify by combining like terms : a) p ( q - r ) - q ( p -r ) - r ( p -q ) b) 23ab - 12bc^2 - 12ba - 13bc^2
Thursday, April 30, 2015 by Preia

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