Thursday

May 28, 2015

May 28, 2015

**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**

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*