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 Question 64510: help to find a : 2c/a - b = m/x Click here to see answer by checkley71(8403)

 Question 65963: ) It is approximately 480 miles from Los Angeles, California, to San Francisco, California. Allowing for various traffic conditions, a driver can average approximately 60 miles per hour.How far have you traveled after 3 hours?How far have you traveled after 4 hours?How far have you traveled after t hours (i.e., write a linear function that expresses the distance traveled, d, as a function of time, t).How far will you HAVE LEFT to travel to reach San Francisco after you have traveled 3 hours?How far will you HAVE LEFT to travel to reach San Francisco after you have traveled 4 hours?How far will you HAVE LEFT to travel to reach San Francisco after you have traveled t hours (i.e., write a linear function that expresses the distance to be traveled to reach San Francisco, s, as a function of time, t). Click here to see answer by venugopalramana(3286)

 Question 66042: use substitution to solve 2x + 3y = 9 5x - 2y = -25 Click here to see answer by checkley71(8403)
 Question 66042: use substitution to solve 2x + 3y = 9 5x - 2y = -25 Click here to see answer by praseenakos@yahoo.com(507)

 Question 66047: When working out the rule for a quadratic equation (ax^2+bx+c)from a tables of different values how do you find B? I know that a=half second difference pattern and c=y when x=0. I covered it ages ago and its just gone straight out of my head lol.. Thanks Jocelyn Click here to see answer by checkley71(8403)

 Question 66082: I started on this problem but can't seem to get any further than this point. I can't figure out what I'm doing wrong. If you can help I would really appreciate it. 3=7x-4x^2 3-7x+4=0 a=3,b=-7,c=4 Thank you Click here to see answer by funmath(2926)

 Question 66105: If the sum of two consecutive integers is subtracted from their product, the result is 181. What are the two integers? Click here to see answer by Earlsdon(6294)

 Question 66052: In most businesses, increasing prices of products can negatively impact the number of customers. A bus company in a small town has an average number of riders of 800 per day. The bus company charges \$2.25 for a ride. They conducted a survey of their customers and found that they will lose approximately 40 customers per day for each \$.25 increase in fare. Let the number of riders be a function of the fare charged. Graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), find the slope of the graph, find the price at which there will be no more riders, and the maximum number of riders possible. The bus company has determined that even if they set the price very low, there is a maximum number of riders permitted each day. If the price is \$0 (free), how many riders are permitted each day? If the bus company sets the price too high, no one will be willing to ride the bus. Beginning at what ticket price will no one be willing to ride the bus? Thank-you so much! Click here to see answer by ankor@dixie-net.com(16527)

 Question 66212: Using the quadratic equation y = x2 - 6x + 8 = 0, perform the following tasks: Solve by factoring. Solve by using the quadratic formula. Click here to see answer by ptaylor(2058)

 Question 66214: I NEED HELP PLEASE! Suppose a baseball is shot up from the ground straight up with an initial velocity of 32 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0 • 16 represents ½g, the gravitational pull due to gravity (measured in feet per second 2). • v0 is the initial velocity (how hard do you throw the object, measured in feet per second). • s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0. What is the function that describes this problem? The ball will be how high above the ground after 1 second? How long will it take to hit the ground? What is the maximum height of the ball? Click here to see answer by venugopalramana(3286)
 Question 66214: I NEED HELP PLEASE! Suppose a baseball is shot up from the ground straight up with an initial velocity of 32 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0 • 16 represents ½g, the gravitational pull due to gravity (measured in feet per second 2). • v0 is the initial velocity (how hard do you throw the object, measured in feet per second). • s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0. What is the function that describes this problem? The ball will be how high above the ground after 1 second? How long will it take to hit the ground? What is the maximum height of the ball? Click here to see answer by Earlsdon(6294)

 Question 66213: For the function y = x2 - 6x + 8, perform the following tasks: Put the function in the form y = a(x - h)2 + k. What is the equation for the line of symmetry for the graph of this function? Graph the function using the equation in part a. Explain why it is not necessary to plot points to graph when using y = a (x - h) 2 + k. In your own words, describe how this graph compares to the graph of y = x2? Click here to see answer by venugopalramana(3286)

 Question 66194: If the product of two consecutive odd integers is decreased by one-third the lesser integer, the result is 250. Find the integers. Click here to see answer by checkley71(8403)

 Question 66260: For the function y = x2 - 6x + 8, perform the following tasks: a) Put the function in the form y = a(x - h)2 + k. Answer: Show work in this space. b) What is the equation for the line of symmetry for the graph of this function? Answer: c) Graph the function using the equation in part a. Explain why it is not necessary to plot points to graph when using y = a (x - h) 2 + k. Show graph here. Explanation of graphing. d) Describe how this graph compares to the graph of y = x2? Answer: Click here to see answer by funmath(2926)

 Question 66259: I'm having a hard time with this problem. Please help! Amanda has 400 feet of lumber to frame a rectangular patio (the perimeter of a rectangle is 2 times length plus 2 times width). She wants to maximize the area of her patio (area of a rectangle is length times width). What should the dimensions of the patio be, and show how the maximum area of the patio is calculated from the algebraic equation. Use the vertex form to find the maximum area. Answer: Click here to see answer by checkley71(8403)

 Question 66258: Im having a hard time with this problem. Please help! Suppose a baseball is shot up from the ground straight up with an initial velocity of 32 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0 • 16 represents ½g, the gravitational pull due to gravity (measured in feet per second 2). • v0 is the initial velocity (how hard do you throw the object, measured in feet per second). • s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0. a) What is the function that describes this problem? Answer: b) The ball will be how high above the ground after 1 second? Answer: c) How long will it take to hit the ground? Answer: d) What is the maximum height of the ball? Answer: Click here to see answer by Earlsdon(6294)

 Question 66247: Please help me solve this equation. "Find a, b, and c so that the parabola whose equation is y=ax^2+bx+c has its vertex (3,2) and passes through the point (-1,10)". I have tried plugging in the point, but I cannot seem to figure it out. Thank you. Click here to see answer by ankor@dixie-net.com(16527)

 Question 66257: I'm having a hard time with this problem. Please help! 2) For the function y = x2 - 6x + 8, perform the following tasks: a) Put the function in the form y = a(x - h)2 + k. Answer: Click here to see answer by Nate(3500)
 Question 66257: I'm having a hard time with this problem. Please help! 2) For the function y = x2 - 6x + 8, perform the following tasks: a) Put the function in the form y = a(x - h)2 + k. Answer: Click here to see answer by stanbon(60778)

 Question 66424: what is the value of K for 2x+ky=5 if this equation is perpendicular to 3x+y=-2? Click here to see answer by uma(370)

 Question 66493: Please help me solve this problem. Toward the end of the principals' meeting for the Drug-Free Community campaign project, a total of 21 handshakes were exchanged. Assuming each principal shakes hands once with the other principals, how many principals were present? Click here to see answer by josmiceli(10616)

 Question 66492: Please help me answer this question. A wire 36 m long is cut into two pieces. Each piece is bent to form a rectangle which is 1.0 m longer than it is wide. How long should each piece to be minimize the sum of the areas of the two rectangle? Click here to see answer by stanbon(60778)

 Question 66575: Amanda has 400 feet of lumber to frame a rectangular patio (the perimeter of a rectangle is 2 times length plus 2 times width). She wants to maximize the area of her patio (area of a rectangle is length times width). What should the dimensions of the patio be, and show how the maximum area of the patio is calculated from the algebraic equation. Use the vertex form to find the maximum area. Click here to see answer by venugopalramana(3286)

 Question 66620: I'M HAVING A REALLY HARD TIME TRYING TO FIGURE THIS OUT. PLEASE HELP. When using the quadratic formula to solve a quadratic equation ax2 + bx + c = 0, the discriminant is b2 - 4ac. This discriminant can be positive, zero, or negative. (When the discriminant is negative, then we have the square root of a negative number. This is called an imaginary number, sqrt(-1) = i. ) Explain what the value of the discriminant means to the graph of y = ax2 + bx + c. Hint: Chose values of a, b and c to create a particular discriminant. Then, graph the corresponding equation. In the real world, where might these imaginary numbers be used? Click here to see answer by stanbon(60778)