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April 1, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

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math
Point X is on side of line AC of triangle ABC such that <AXB = <ABX, and <ABC - <ACB = 39 degrees. Find <XBC in degrees.?
Saturday, March 21, 2015 at 7:40pm

Math
1. Rishi ram obtained an installment loan for $3,000.00. He agreed to repay the loan in 6 monthly payments. His monthly payments is $516.50. What is the APR? MY ANSWER=0.33% 2. Tim Newman took out a simple interest loan of $1500 at a 10 percent interest for 12 months. After 4 ...
Saturday, March 21, 2015 at 7:36pm

math
A box contained some red, blue, and green markers. For every 5 red markers, there were 2 blue markers. For every 3 blue markers, there were 5 green markers. a.​​Find the ratio of red markers to blue markers to green markers. b.​When 6 red markers were removed...
Saturday, March 21, 2015 at 7:31pm

math
There are 32 more apples than oranges in a box. 3/5 o​f the oranges and 1/3 o​f the apples are overripe. If the number of overripe apples and the number of overripe oranges are the same, how many pieces of overripe fruit are there?
Saturday, March 21, 2015 at 7:30pm

Math help check
Which polynomial does the model represent? The model shows 1 black square block, 2 white thin blocks, 1 black thin block, 1 white small square block, 3 black small blocks. a –x³ + 2x² – 3x + 2 b. x² + x – 2 c. –x² – x + 2 d. –x...
Saturday, March 21, 2015 at 6:26pm

Math check
1.(2x)(10x) A)20x* B)12x C)20x^2 D)5x 2.-3m(m + 8) A)-3m^2 + 24 B)-3m^2 - 24m C)-24m D)-4m + 5* 3. 4d(2d-9) A)8d - 36d* B)-d C)-28d^2 D)8d^2 - 36d 4. (3x + 4)(x-2) A)3x^2 - 2x - 8 B)x - 8 C)3x - 2x - 8* D)3x^2 + 2x + 8 5. (2y - 1)(4y - 3) A)-2y + 3* B)8y^2 - 10y - 3 C)8y^2 - ...
Saturday, March 21, 2015 at 5:41pm

Math
1. Michael Koepler received his bank statement and canceled checks for October. His previous balance was $998.41. In October, he deposited $177.00 and wrote checks totaling $378.00. What was the ending balance for that month? MY ANSWER- I am unsure if the answer is $797.41 or...
Saturday, March 21, 2015 at 5:08pm

math
What would be the final cost of a theater ticket that cost $6.00 and a discount rate of 15 percent was added to it?
Saturday, March 21, 2015 at 3:26pm

Math
Amanda Sabino's taxable income is $20,900.00. How much will she pay in state tax? Tax Table- First $2,000: 2.0% rate Next $4,000: 3.0% rate Next $4,000: 4.5% rate Over $10,000: 6.0% rate My answer-$1254 Am I correct? Thank you!!
Saturday, March 21, 2015 at 2:45pm

Math
Hello I need some help with these questions. A survey of 115 children found that 39 liked The Little Mermaid 43 liked 101 Dalmatians 56 liked Mickey Mouse 7 liked The Little Mermaid and 101 Dalmatians 10 liked The Little Mermaid and Mickey Mouse 16 liked 101 Dalmatians and ...
Saturday, March 21, 2015 at 2:41pm

Math
A document that measures 28 centimeters by 20 centimeters is enlarged by a scale factor of 3/2. What are the dimensions of the enlarged documents?
Saturday, March 21, 2015 at 2:32pm

math
adult tickets are $17, student tickets are $9. how many adult and student tickets need to be sold to make a profit of $4,400?
Saturday, March 21, 2015 at 1:53pm

Math
Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y < 6 x > 0 ...
Saturday, March 21, 2015 at 12:40pm

math
Solve the initial value problem d^2x/dt^2+2dx/dt-3x = 0, x(2π) =1, x(2π) = 13
Saturday, March 21, 2015 at 12:35pm

math
Rectangle WXYZ is drawn on triangle ABC, such that point W lies on segment AB, point X lies on segment AC, and points Y and Z lies on segment BC, as shown. If <BWZ=26 degrees and <CXY=64 degrees, what is<BAC, in degrees?
Saturday, March 21, 2015 at 12:24pm

math
ABC is an isosceles triangle inscribed in a circle. If AB and AC equal to 2.5cm and BC is 14cm find the radius of the circle
Saturday, March 21, 2015 at 11:54am

math
Assume that on a weekday one telephone number out of every ten being called is busy. If 6 randomly selected numbers are called what is the probability that at least three of them be busy?
Saturday, March 21, 2015 at 11:50am

math
If a power failures occur according to a poisson distribution with an average of 3 failures every twenty weeks,calculate the probability that there will not be more than one failure during a particular week.
Saturday, March 21, 2015 at 9:40am

Math, Intergration
C(T)=0.78125-0.5e^(-0.64T) (T+1.5625) Using this equation, I don't understand 'Intergration by parts' to show this and what it means Any help is appreciated!
Saturday, March 21, 2015 at 9:26am

Math
Hi I'm having a bit of trouble if anyone is able to help, thanks! Using the substitution u =1-2t^2, show that A = -1/4 ∫_1^(-7)▒e^u du
Saturday, March 21, 2015 at 7:33am

math
Calculate the mean value for the number of heads appearing in a simultaneous throw of 3 coins.
Saturday, March 21, 2015 at 7:04am

math
The arrow is spun several times until it stops at a number 4. Find the probability that this happens on the third spin.
Saturday, March 21, 2015 at 6:54am

math - URGENT
I'm don't understanding how to solve this question: The graph of a line passes through the x-intercept of y-20=2/11(x-31) and is perpendicular to the line y=1/7x+7 . The equation of the line, written in Slope-Point form, is y-p = m(x-q). what is the value of m*q ?
Saturday, March 21, 2015 at 2:43am

MATH!!!
What is the equation for the line that passes through W(-10,-9) and is parallel to y=5/32x-10 ? Thank you....
Saturday, March 21, 2015 at 2:34am

math -ans check
two points on the graph of a linear function are (-3,5) and (-1,4). Determine the equation of the function in slop-point form. ans: m=-1/2 I pick a point (-1,4) y-y1=m(x-x1) y-4=-1/2(x-(-1)) y-4=-1/2(x+1) Thank you ^^
Saturday, March 21, 2015 at 1:35am

math _ HELP !!
two points on the graph of a linear functions are (-3,5) and (-1,4). Determine the equation of the function in slope form ? can someone help explain in step ? Thanks
Saturday, March 21, 2015 at 12:15am

Math
Skate boarding boys= 2 girls=1 What percentage of the total students chose skateboarding? A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank you
Saturday, March 21, 2015 at 12:01am

Math
a horse race has 14 entries and one person owns 3 of those horses. assuming that there are no ties, what is the probability that those three horses finish first, second and third?
Friday, March 20, 2015 at 11:36pm

math
if I bought 3 items at 24.95 and 2 items at 45 and they were all 30% off, If I had bought these 5 items without the 30$ off what would I have paid
Friday, March 20, 2015 at 10:55pm

math
There are 32 more apples than oranges in a box. 35 o​f the oranges and 13 o​f the apples are overripe. If the number of overripe apples and the number of overripe oranges are the same, how many pieces of overripe fruit are there?
Friday, March 20, 2015 at 9:21pm

math
A box contained some red, blue, and green markers. For every 5 red markers, there were 2 blue markers. For every 3 blue markers, there were 5 green markers. a.​​Find the ratio of red markers to blue markers to green markers. b.​When 6 red markers were removed...
Friday, March 20, 2015 at 9:20pm

Math
There are red and blue marbles in a jar. There are 2 more red marbles than blue. There are 8 marbles in all. How many red marbles? How many blue marbles?
Friday, March 20, 2015 at 9:03pm

math
Silvia has twice as much money invested at 5% simple interest as she does at 4%. If her yearly income from the two investments is $266, how much does she has at each rate? 4% = 5% =
Friday, March 20, 2015 at 7:25pm

College Math
An open-topped rectangular box is to be constructed from a 24 inch by 36 inch piece of cardboard by cutting out squares of equal sides from the corners and then folding up the sides. What size squares should be cut out of each of the corners in order to maximize the volume of ...
Friday, March 20, 2015 at 6:07pm

math
A store mixes peanuts worth $10 per pound and biscuit worth $13 per pound. The mixture is to sell for $12 per pound. Find how much of each should be used to make a 432 pound mixture.
Friday, March 20, 2015 at 4:27pm

math
Mary and John are 128 miles apart. A car leaves Mary traveling towards John and another car leaves John at the same time traveling towards Mary. The car leaving Mary averages 10 miles per hour more than the other car and they meet after 1 hour and 36 minutes. What are the ...
Friday, March 20, 2015 at 4:22pm

math
Seven people rowed 12 miles downstream with the current in 1.5hrs. Coming back upstream against the current covered the same distance but took 4 hours. Find the people rowing rate in the still water and the rate of the current
Friday, March 20, 2015 at 4:16pm

math
Beans meal is 16% protein flour meal is 8% protein. How many pounds of each should be mixed together to get 32 pounds mixture that is 13% protein how many pounds of the flour meal should be in the mixture
Friday, March 20, 2015 at 4:12pm

math
June has twice as much money invested at 5% simple annual interest as she does at 4 %. If her year income from the two investment is $315 how much does she have at each rate?
Friday, March 20, 2015 at 4:05pm

math
Mr Jacob has twice as much money invested at 5% simple annual interest as he does at 4%. If his yearly income from the two investment is $126, how much does he has at each rate?
Friday, March 20, 2015 at 3:24pm

math
A conducting rod of mass 30 g and length 48 cm has holes drilled near each end so that it is free to slide in a vertical direction along two conducting rails as shown in the figure below. A current of 240 A is made to flow through an identical rod at the bottom of the assembly...
Friday, March 20, 2015 at 2:19pm

math
My car gets 26 miles per gallon, I have to drive 36 miles, gas price is $3.10 per gallon. How much money will I need?
Friday, March 20, 2015 at 1:31pm

math
Trent wants to build a rectangular pen for his animals. One side of the pen will be against the barn; the other three sides will be enclosed with wire fencing. If Trent has 400 feet of fencing, what dimensions would maximize the area of the pen?
Friday, March 20, 2015 at 12:06pm

Math
Connie made deposits of $2000 at the beginning of each year for four years. The rate she earned is 5% annually. What is the value of Connie's account in four years?
Friday, March 20, 2015 at 10:51am

Tsi math
A rectangular room measures 20 by 7 feet Find the cost of installing a strip of wallpaper around the room if the wallpaper costs $0.98
Friday, March 20, 2015 at 9:42am

math
3/5 of the people at a funfair were children. 3/4 of the remaining people were men. There were 140 more children than women. How many people went to the funfair?
Friday, March 20, 2015 at 9:26am

math
Sam had 80 foreign stamps and local stamps. After giving away13of his foreign stamps and 10 local stamps, he had an equal number of foreign stamps and local stamps left. How many local stamps did he have in the beginning?
Friday, March 20, 2015 at 9:25am

math
Solve the following ordinary differential equations. I) (2y+x^2+1)dy/dx+2xy-9x^2=0 ii) d^2/dx^2+3day/DX+2y=x^2
Friday, March 20, 2015 at 5:12am

math
An object of mass 100g is thrown vertically upward from a point 60cm above the earths surface with an initial velocity of 150cm/sec. It rises briefly and then falls vertically to the earth, all of which time it is acted on by air resistance that is numerically equal to 200v (...
Friday, March 20, 2015 at 2:23am

Math
1. A carton contains b boxes of paper plates, and each box contains n plates. If the carton costs c dollars, what is the cost per paper plate, in dollars, when the plates are bought by the carton? a. cbn b. c/bn c. bn/c d. cn/b e. n/cb I do not know which. I got something like...
Friday, March 20, 2015 at 2:07am

math
building A is 180 feet shorter than building B. The total height of the two building is1480 feet. find the length of each building
Friday, March 20, 2015 at 1:51am

math 5th grade
A snail is crawling up the side of a wall that is 3 meters high. Each day, he crawls up 40cm. The first night, he slips back down 2cm; the second night he slips down 4cm; the third night he slips down 6cm; and so on at the same rate.(He was getting more tired each night!) How ...
Friday, March 20, 2015 at 1:00am

math
Point X is on side AC of triangle ABC such that <AXB =<ABX, and <ABC - <ACB = 39 degrees. Find <XBC in degrees.
Thursday, March 19, 2015 at 10:53pm

math(Discrete)
Give the negation of the statement ∃! x ∈ U [P (x)].
Thursday, March 19, 2015 at 10:51pm

math
Point X is on side AC of triangle ABC such that <AXB =<ABX, and <ABC - <ACB = 39 degrees. Find <XBC in degrees.
Thursday, March 19, 2015 at 10:46pm

math
This can be proven by using congruent triangles. Because ACX=YCB are two adjacent angles, one angle is <ACB and the other being an angle that forms an equilateral triangle (which is 60 degrees), it means that ACX=<YCB=<ACB+60. Now we can see that AC=YC, and CX=CB, ...
Thursday, March 19, 2015 at 10:31pm

math(Discrete)
Determine whether the statement ∀x ∈ Z, ∃y, z ∈ Z[x = 5y + 7z] is true or false. Explain.
Thursday, March 19, 2015 at 9:54pm

Math Help Please!!!
Use the function rule to complete the table Table= x= -2, -1, 0, 1, 2 y= (figure out y) Function rule= -10x+y=4
Thursday, March 19, 2015 at 9:42pm

math
Travel 35mph,to reach spot 27 miles away, traveling 2/3 of hour will I reach spot? How long will it take to reach spot?
Thursday, March 19, 2015 at 9:26pm

Math
A rectangular garden dimensions 30m by 20m and is divided into 4 parts by two pathways that run perpendicular from its side. One pathways has a width 8dm and 7dm. What is the total useble area of the garden?
Thursday, March 19, 2015 at 7:55pm

Math
A taxi ride costs $3 plus $2.50 per mile. Write the equation.
Thursday, March 19, 2015 at 7:43pm

math
on a weekend road trip the jensen family drove 210 miles on highways, where their car gets 35 miles for each gallon of gas and 54 miles on city streets where their car gets 18 miles for each gallon. How many gallons of gas did they use?
Thursday, March 19, 2015 at 7:04pm

math
The sum of two consecutive integers is –49. Write an equation that models this situation and find the values of the two integers.
Thursday, March 19, 2015 at 7:03pm

Delete Question
Is it possible to have this question deleted since I figured out how to do it? Thanks! Subject: Math Date: Thursday, March 19, 2015 Time: 3:13 PM
Thursday, March 19, 2015 at 6:49pm

Math
Determine whether the statement ∀x ∈ Z, ∃y, z ∈ Z[x = 5y + 7z] is true or false. Explain.
Thursday, March 19, 2015 at 6:39pm

Math
Give the negation of the statement ∃! x ∈ U [P (x)].
Thursday, March 19, 2015 at 6:34pm

Math
Zain goes swimming. He swims the first length of the pool in 2.5 minutes. The time he takes to swim each length is 10 seconds more than he took to swim the previous length. A. Find the time Zain takes to swim the fifth length. B. Find the time taken for Zain to swim a total of...
Thursday, March 19, 2015 at 6:28pm

Math
A photo is 6 in wide and 3 in tall. If it is reduced to a height of 1 in, how wide will it be?
Thursday, March 19, 2015 at 6:27pm

Math
A photo is 6 in wide and 3 in tall. If it is reduced to a height of 1 in, then how wide will it be?
Thursday, March 19, 2015 at 6:20pm

Math
A ball is dropped vertically. It reaches a height of 1.6m on the first bounce. The height of each subsequent bounce is 80% of the previous bounce. A. Find the height the ball reaches on the 6th bounce. B. Find the sum of the first seven terms of this sequence.
Thursday, March 19, 2015 at 6:14pm

Math
the back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic one day. what is the difference between the age of the oldest patient seen by doctor 1 and the age of the oldest patient seen by doctor 2. AGE OF DOCTORS PATIENTS Doctor...
Thursday, March 19, 2015 at 6:10pm

math
1/4 of the plants are pepper, 1/3 of the peppers are yellow peppers what fraction of the plants are yellow peppers?
Thursday, March 19, 2015 at 6:03pm

Math
A ball is placed on a long inclined ramp. It rolls down the ramp as shown in the diagram. The equation d = 23 · t2 represents the distance in feet, d, the ball travels in t seconds. Part A How far does the ball travel in 5 seconds? Show your work. Part B How many ...
Thursday, March 19, 2015 at 5:58pm

math
two small pizzas are shared by three people how much pizza does each person get
Thursday, March 19, 2015 at 5:23pm

Math
The equation d = 23 · t2 represents the distance in feet, d, the ball travels in t seconds. Part A How far does the ball travel in 5 seconds?200 feet in 5 seconds. Show your work. Part B How many seconds would it take for the ball to travel 25 feet? Show your work. Part...
Thursday, March 19, 2015 at 5:22pm

Math
A retangular prism has a volume of 7,168 cm^3. It's base has an area of 512 cm^2. what is it's height?
Thursday, March 19, 2015 at 4:37pm

Math
Could 7 be part of the solution set for the inequity? 5x > 40? Explain your reasoning
Thursday, March 19, 2015 at 4:01pm

Math check please
1. Solve the system of equations y=2x^2-3 y=3x-1 a)no solution b)(-1/2,5),(2,-5/2) c)(-1/2,-5/2),(2,5)**** d)(1/2,5/2),(2,5) 2. How many real number solutions are there to the equation 0=-3x^2+x-4? a)0 ***** b)1 c)2 d)3 3.solve the equation by completing the square. if ...
Thursday, March 19, 2015 at 3:58pm

Math
The quantity Q of radioactive carbon remaining in a 300 - gram wood sample at time t is given by the expression Q(t) = 300 e^{- 0.000324*t}. How much radioactive carbon remains in the sample after (a) 200 years, (b) 50000 years, (c) 125500 years?
Thursday, March 19, 2015 at 3:43pm

Math
Hi! I really need help with these two practice problems. If someone could show me how to do both, that would great. Directions: Decide whether the statements are true or false by using partial fraction decomposition. If it is false, show the correct way to decompose the ...
Thursday, March 19, 2015 at 3:13pm

Math
If 50 books is $86.45 for each Books and 150 books is $80.95 for each book what is the cost for 60 books?
Thursday, March 19, 2015 at 3:06pm

math
Suppose a 25-foot ladder is leaning against a wall making a 63 degree angle with the wall. How high up th wall is the end of the ladder?
Thursday, March 19, 2015 at 3:00pm

math
A diamond is purchased for $3500. Its value increases 4% each year. Find the value of the diamond at the end of the sixth year of ownership.
Thursday, March 19, 2015 at 2:26pm

Math
An atom of gold has a mass of approximately 3.25 times 10^-22 grams. What is the mass of 3000 atoms of gold?
Thursday, March 19, 2015 at 2:04pm

Math
38 ounces=____lb ____oz
Thursday, March 19, 2015 at 1:47pm

Math
Ron wants to buy a used car and needs to have a down payment of 25%. If the car Ron wants to buy costs $5,100, how much down payment will he need?
Thursday, March 19, 2015 at 1:47pm

MATH SUPER HELP!
I have 2 questions which measure correctly completes the statement. 1,127.5 milligrams = ? grams (1 point) which measure correctly completes the statement 627.532 L= / ml a sunflower was 1.8 meters high one week ago. in 7 days it grew 12 centimeters. find the current height of...
Thursday, March 19, 2015 at 1:42pm

Math i need someone awesome to help! ASAP
I have 2 questions which measure correctly completes the statement. 1,127.5 milligrams = ? grams (1 point) which measure correctly completes the statement 627.532 L= / ml a sunflower was 1.8 meters high one week ago. in 7 days it grew 12 centimeters. find the current height of...
Thursday, March 19, 2015 at 1:29pm

Math
Which associations best describe the data in the table? Variable m 9 6 5 1 3 4 2 8 7 Variable n 33 24 18 3 10 14 7 32 26 Choose exactly two answers that are correct. A. linear association B. negative association C. nonlinear association D. positive association
Thursday, March 19, 2015 at 12:01pm

Math
If I have test scores of 82, 89, & 77% what is my aveage?
Thursday, March 19, 2015 at 10:28am

math
You want to make a graph to show how you spend your time each day. What would be the best graph for this data? A. Circle graph B. Line graph C. Histogram D. Stem_and leaf plot Is the answer A? Thank you
Thursday, March 19, 2015 at 9:03am

math help please
Which of the following types of information is suited for display on a scatter plot? A. Relationship between favorite color and age. B. Relationship between number of pets and favorite TV show C. Relationship between hours of exercise and number of siblings. D. Relationship ...
Thursday, March 19, 2015 at 8:58am

math help please
What type or graph does not show the number of times a response was given? A. Box_and _whisker plot B. Line plot C. Stem and leaf plot D. Bar graph Is the answer A?
Thursday, March 19, 2015 at 8:41am

Math Help
Directions: Decide whether the statements are true or false by using partial fraction decomposition. If the statement is false, show the correct way to decompose the partial fraction. 3/x^2+x-2=-1/x+2+1/x-1
Thursday, March 19, 2015 at 8:12am

Math
Solve the following system of equations. Then, write the final answer in (x, y, z) form. -12x+y-x=-20 -2x-4y+2z=10 x+2y+2z=25
Thursday, March 19, 2015 at 8:09am

math
For more than 4000 years the Great Pyramid of Giza stood as the tallest structure in the world. After it was completed, the pyramid stood an amazing 481 feet high. Y 9 th. grade math Semester Project: The Great Pyramid of Giza
Thursday, March 19, 2015 at 7:46am

Math
On Monday at noon, the temperature was 23oF. By 9 pm it was -4oF. On Tuesday at noon, it was 18oF. By 9 pm it was -11oF. On which day did the greater temp. change occur?
Thursday, March 19, 2015 at 6:51am

Math
Solve the following equations 7f+f^2=60 6x^2-x-15=0 6(y-3)^2-(y-3)-15=0
Thursday, March 19, 2015 at 5:54am

math
20 men can do a piece of work in 24 days. After working for 6 days, additional men are employed to finish the work in 21 days from the beginning. Find the number of additional men
Thursday, March 19, 2015 at 3:43am

math
32, k 3 , are three consecutive arithmetic terms find k
Thursday, March 19, 2015 at 3:27am

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