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March 29, 2015

Homework Help: Math

Branches of Math

Recent Math Questions

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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

Math
Each of three pumps A, B, C can pump water either into, or out of, a swimming pool. Pump A can fill the pool in 6 hours, while pumpp B works twice as fast. Pump C however takes one third more time than pump A to fill the pool. 1. All three pumps together pumping in water will ...
Thursday, March 19, 2015 at 2:58am

math
Find three mixed numbers so that the sum is 18 and the difference between the greatest number and the least number is 5 1/5.
Thursday, March 19, 2015 at 2:47am

Quick math help
Which of the following is a like term to 3wx^3? A.8wx^3 B.3w^3x^3 C.-3wx D.8wx^4 I'm thinking its a.
Thursday, March 19, 2015 at 1:15am

Math
1. What is the remainder when 2^190 is divided by 5? How do I approach these questions; do I write it down on paper, or use my calculator(how do I see the remainder?)? 2. Figure: A large right triangle, shortest base in on the ground, shorter height is vertical, longest ...
Wednesday, March 18, 2015 at 11:54pm

Math
a cone and a hemisphere share the base that is a semicirclee with radius 3 and the cone is inscribed inside the hemisphere. find the volume of the region inside the hemisphere
Wednesday, March 18, 2015 at 11:36pm

Math
The diagram: it is a large triangle labelled ACD(AC a line horizontal, then AD and CD joining at the tip going down-so the triangle is "upside down" with the base up) with a line drawn that connects point E, which intersects segment CD at the middle(a median), with ...
Wednesday, March 18, 2015 at 11:14pm

Math
(-3,5) (-2,-6) I do not understand equation of a line
Wednesday, March 18, 2015 at 10:50pm

Math
A garden is edged with landscaping tiles that are 9.2 cm wide. The length of the garden is 6.2 m and the width of the garden is 5.6 m. What is the perimeter of the garden inside the landscaping tiles, to the nearest tenth of a meter?
Wednesday, March 18, 2015 at 10:01pm

math
Determine the quadratic function of the following: Congruent to y=-12x2; opens up; vertex at (-3,2)
Wednesday, March 18, 2015 at 9:57pm

MATH
I am trying to find the rule for a function table with input 2, output 30; input 3, output 48; input 4, output 66.
Wednesday, March 18, 2015 at 9:07pm

math
Use the following situation to answer the question. The number of letters (n) which can be typed on a sheet of paper varies inversely as the square of the size (s) of the letters used. What is the relationship connecting n and s?
Wednesday, March 18, 2015 at 9:04pm

math
kurt cut pizzas into wedges measuring 40 degrees if each person eats one slice of pizza how many could he feed with two whole pizzas
Wednesday, March 18, 2015 at 9:00pm

Math help
What type of graph does not show the number of times a response was given? box-and-whisker plot line plot stem-and-leaf plot bar graph Is the answer A? Thank you for your help
Wednesday, March 18, 2015 at 8:50pm

business math
Stereo Inc. sells a stereo system for $500 down and monthly payments of $60 for the next 4 years. If the interest rate is 1.75% per month, find: a) The cost of the stereo. b) The total amount of interest paid.
Wednesday, March 18, 2015 at 8:46pm

Math Answer Check
P is a point on the terminal side of θ in standard position. Find the exact value of the six trigonometric functions for θ. P(-8, -8) Ans: cotangent: 1 secant: negative square root 2 cosecant: negative square root 2 sin: square root 2 / 2 cosine: square root 2 / 2 ...
Wednesday, March 18, 2015 at 7:49pm

Math
A mail truck picks up two boxes of mail from the post office. The total weight of the boxes is 32 pounds. One box is 8 pounds heavier than the other box. How much does each box weigh?
Wednesday, March 18, 2015 at 7:28pm

math
what are the procedures on how to measure the length of an object with a ruler?
Wednesday, March 18, 2015 at 6:51pm

Math
Q. Tickets to the rodeo sell for $12 each. If they are bought in groups of 10 or more, you revice 1/4 (fraction) off the price of each ticket. Julie wants to buy 14 tickets. How much will her total cost for the 14 tickets. A. Do I add 12 + 14? and minus the answer with 1/4 ? (...
Wednesday, March 18, 2015 at 6:42pm

Math
Q. On Friday night 2,950 people attended the rodeo, and 3,159 people attended on Saturday night. If the staudim seats 4,000 people, how many empty seats were there for two nights? - A. So do I add 3,159 + 2,950 = 6,109 and subtract 6,109 - 4,000 = 1,891?
Wednesday, March 18, 2015 at 6:38pm

Math
Nat has 5 pieces of string. Each piece is 7/8 inch long. How many inches of string does Nat have?
Wednesday, March 18, 2015 at 6:37pm

3rd grade math
what is the standard form of 213
Wednesday, March 18, 2015 at 6:32pm

Math
If you divide this mystery number by 4, add 8, and multiply by 3 you get 42. What is the mystery number?
Wednesday, March 18, 2015 at 6:24pm

math
541,641,741.what is the next number.
Wednesday, March 18, 2015 at 6:09pm

Math
Is 2, 3, 5, 8, 12 arithmetic, geometric, neither, or both?
Wednesday, March 18, 2015 at 6:08pm

Math
7 7/8 + 2 11/12
Wednesday, March 18, 2015 at 5:58pm

Math
The function h(t) = 2 + 50t -1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. A) What is the maximum height reached by the ball (i got 1165.8, is this correct) ...
Wednesday, March 18, 2015 at 5:48pm

Math
What is the reference angle for θ = -195 degrees? Is it 75 degrees?
Wednesday, March 18, 2015 at 5:36pm

Math
Write two mixed numbers with a sum of 3.
Wednesday, March 18, 2015 at 5:29pm

4th grade math
What is the fomula to figure out the reasoning to this question? "Kurt cut pizzas into wedges measuring 40 degrees. If each person eats one piece of pizza, how many people could he feed with two whole pizzas?
Wednesday, March 18, 2015 at 5:26pm

math
How many 50 centimeter pieces of ribbon can Casey cut from a roll of 60 meters long?
Wednesday, March 18, 2015 at 5:04pm

Math
Hi! I need help with this question. Thanks! Directions: Try to find the number of solutions for the following system of equations then determine if it is Dependent, Inconsistent or Consistent. -3x-2y=6 x=-2-2/3y
Wednesday, March 18, 2015 at 4:58pm

Math
Solve these system of equations. Then, write the final answer in (x,y) form. 1.) x-y=7 3x+2y=6 2.) 2x-4y=3 -3x+5y=1
Wednesday, March 18, 2015 at 4:57pm

math
How many different permutations can be created when anne, Becky,Carlo, dan and Esi line up to buy movie tickets, if Esi always stand behind becky?
Wednesday, March 18, 2015 at 4:56pm

business math
This question is based on a standard modeling problem in business. The unit cost of a item (or drink or chemical) affects how much of the thing is sold. The revenue is the amount of money raised from sales. Hence, raising price should drop sales, but that may result in more ...
Wednesday, March 18, 2015 at 4:52pm

math
the graph of y=f(x) is transformed into y=-f(1/3x+9)+8. a.Describe the transformations in correct sequence. b.Is there any other sequence of transformations that could produce the final graph? If so, describe all possible ones.
Wednesday, March 18, 2015 at 4:49pm

math
Solve for n: (n-2)!/(n-3)!=15 and (n-2)!/(n-1)=12
Wednesday, March 18, 2015 at 4:46pm

Math
The theater offers a yearly membership for which customers pay a fee of $50 after which they pay only $1 per movie Create an equation for the membership deal Use C for the cost in dollars and N for the number of movies rented
Wednesday, March 18, 2015 at 4:13pm

7th grade math
For questions 1, 2 identify each sentence as arithmetic, geometric both or neither. 1) 7, 9, 11, 13 ...... A) arithmetic B) geometric C) both D) neither (my answer) 2) 2, 1, 1/2, 1/4, .... A) arithmetic B) geometric C) both (my answer) D) neither
Wednesday, March 18, 2015 at 3:26pm

math
Given the proportion 3x+2y/7=2x+3y/8, determine the value of xy^2-x^2y/x^3+y^3 This is what I got so far... 3x+2y/7=2x+3y/8=k 3x+2y=7k 2x+3y=8k And that's where I'm stuck at solving this math question.
Wednesday, March 18, 2015 at 3:17pm

math
the perimeter of a paved area being built at a playground it's going to be 46 meters is the land and went are each a whole number of meters what should the length and width of the area be to cover the greatest possible area draw a picture and make an organized list to solve
Wednesday, March 18, 2015 at 2:42pm

MATH
How do I write one equations in slope-intercept form, and three other lines in slope-intercept form that are perpendicular to the first line ?? for ex. If I pick the equation y=2/3x+4 for the first equation. and for the second line , the slope -2/3x +4 , how about the 3rd and ...
Wednesday, March 18, 2015 at 2:08pm

math
This is a continuous from my last question Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2) with x ≠ 2. On what intervals is the graph of g concave down? Justify your answer. ...
Wednesday, March 18, 2015 at 2:06pm

math
How do you solve? what is the area if it is 32. times smaller that 3003.014cm?
Wednesday, March 18, 2015 at 1:45pm

math
Mary invested $3,750 for 42 months at a simple interest rate of 3.85%. How much interest did she earn?
Wednesday, March 18, 2015 at 1:31pm

math
Berkley has 10 pieces of ribbon that are 2 yards each. She uses 8 pieces that are 3 feet long. How many feet of ribbon does Berkley have?
Wednesday, March 18, 2015 at 12:13pm

Math
Jane collected 53 dollar notes for the competition of which x are $2 notes and y is $10 notes. The total value of the dollar notes is $394. Form 2 equations in terms of x and y. Solve the equations and hence find the number of $2 notes
Wednesday, March 18, 2015 at 11:19am

Math
A painter bought some paint for $500. He paid $x for each litre of paint. He accidentally spilt 5 liters of paint and sold the remainder of the psint for $2/litre more than he paid for it. If he made a profit of $40, find the amount he paid for each litre of paint.
Wednesday, March 18, 2015 at 11:16am

Math
3x^2+5xy-2y^2=0, where y is not the same as 0. Find the possible values of x/y
Wednesday, March 18, 2015 at 11:13am

math
what is set-up for three dollars less than half of $128. ?
Wednesday, March 18, 2015 at 10:42am

EDUC2120
Treena is a personable student in Mr. Jordan’s math class. Mr. Jordan can see that Treena is popular with her peers. He regularly sees her conversing animatedly with her friends in the cafeteria and before and after school. She does well in class also. Her homework is ...
Wednesday, March 18, 2015 at 10:25am

math
25 % of a class of 40 students are girls. When some new girls joined the class, the percentage of girls increased to 40 %. How many new girls are joined the class
Wednesday, March 18, 2015 at 10:05am

Math
Find the future value of an ordinary annuity that calls for depositing $100 at the end of every 6 months for 15 years into an account that earns 7% interest compounded semiannually. (Round your answer to the nearest cent.)
Wednesday, March 18, 2015 at 9:42am

Math
The concentration (in milligrams per liter) of an antibiotic in the blood is given by the geometric series A + Aekt + Ae2kt + + Ae(n − 1)kt where A is the number of milligrams in one dose of the antibiotic, n is the number of doses, t is the time between doses, and k is ...
Wednesday, March 18, 2015 at 9:32am

math
Limx-0 sinx/tanx+tanx.sinx
Wednesday, March 18, 2015 at 8:41am

Math
An agent receives a monthly salary of 1500 plus a 4% commission on every home sold what amount of monthly sales will he earn at least 5000
Wednesday, March 18, 2015 at 7:53am

Math - 7th grade (repost)
Can someone please help? I'm given a box and whisker plot that represents the cost, in dollars, of 12 CDs. How can I determine how many CD's cost between $14.60 (Q1 value) and $26 (Q3 value) and how many CD's cost less than $14.60?
Wednesday, March 18, 2015 at 7:08am

Math
Solve the simultaneous equation 1/p minus 1/q = 3/2 1/p plus 1/q = 4
Wednesday, March 18, 2015 at 6:36am

Math
y is directly proportional to the cube of x. If x is increased by 50% show that the percentage increase in y is 237.5%
Wednesday, March 18, 2015 at 6:30am

math
a person's heart may beat at 75 beats per minute. how many beats would that translate into a day?
Wednesday, March 18, 2015 at 5:03am

Math
Show that log base b [(x + (sqrt x^2-5))/5] is equal to -log base b (x-(sqrt x^2-5))
Wednesday, March 18, 2015 at 4:08am

Math
If m ≥ n > 1, what is the largest possible value of log base m (m/n) + log base n (n/m)?
Wednesday, March 18, 2015 at 4:07am

math
Limx-0 sinx/tanxsecx+tanx.sinx
Wednesday, March 18, 2015 at 2:02am

math
Let f(x) = −3x + 5. For what value of x does function f have the given value? f(x) = −1
Wednesday, March 18, 2015 at 1:34am

math
Suppose you borrowed $15000 to buy a car at an interest rate 7.2% compounded monthly. What will the monthly payments be on loans of 36, 48 and 60 months if you do not have to put any money down on the financing?
Wednesday, March 18, 2015 at 1:09am

math
Aisha invests twice the amount invested the previous month. If she invested $26.25 during the 1st month, how much did she invest during the 6th month?
Wednesday, March 18, 2015 at 12:49am

math
Evaluate using L'Hopital Rule? lim as x approaches x from left (1-x)^(3/x)
Wednesday, March 18, 2015 at 12:14am

math
in a spin circle are numbers 10, 2, 4,6, 2, 8, what is the probability of spinning a 2 at first spin.
Wednesday, March 18, 2015 at 12:06am

math.
y=2/5x+c, determine the value of c if the line passes through the point P(-2,-4). answer: c=-16/5 ?
Tuesday, March 17, 2015 at 11:42pm

Math - 7th grade
I'm given a box and whisker plot that represents the cost, in dollars, of 12 CDs. How can I determine how many CD's cost between $14.60 (Q1 value) and $26 (Q3 value) and how many CD's cost less than $14.60?
Tuesday, March 17, 2015 at 11:36pm

Math
order of operation (100-7 x 2+3) /10
Tuesday, March 17, 2015 at 11:25pm

Math
Theo made the table below to show the number of middle school students who attended the last football game. If the data were displayed in a circle graph, how many degrees would be in the sector representing the eigth graders? Grade 6 Number of students in attendance 375. Grade...
Tuesday, March 17, 2015 at 11:10pm

Math
The circle graph shows data on the suitability of land for farming. Which three categories together account for exactly half of the land? The percetage for Too Shallow is 13% The percentage for Chemical Problems is 25% The percentage for Too Dry is 30% The percentage for ...
Tuesday, March 17, 2015 at 11:02pm

Math
Explain how you could write 35% as the sum of two benchmark prevents or as a multiple of a percent.
Tuesday, March 17, 2015 at 10:50pm

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