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 Question 705675: Solve using substitution: 2x^2+16=11x Solve using elimination: -x^2+12x=52 Solve using completing the square: 7=(x-3)^2-1 I don't know those three methods, I know how to solve the quadratic formula though. Click here to see answer by josgarithmetic(3315)

 Question 705625: two numbers have a sum of 10. the sum of the first number plus three times the second number is 24. find the numbers Click here to see answer by geetha_rama(64)

 Question 705660: . * Roots = 3,m * k is constant * Find m and k. Click here to see answer by akashalhat(1)

 Question 705705: If the roots of 2x^2 +3x-1=0 are alpha and beta. Find the values of alpha square + beta square Click here to see answer by KMST(2478)

 Question 705760: Someone PLEASE help me!I'm am all sorts of confused on these. Can anyone help me out and show me how do get to these? 1. Given the following quadratic equation, find a. the vertex b. the axis of symmetry c. the intercepts d. the domain e. the range f. the interval where the function is increasing, and g. the interval where the function is decreasing h. Graph the function. y=-x^2+2x+8 2.  Given the following rational function, find  a. the horizontal asymptote(s),   b. the vertical asymptote(s), if any, and c. the oblique asymptote(s), if any. f(x)=6/(x-5) Click here to see answer by stanbon(60771)
 Question 705760: Someone PLEASE help me!I'm am all sorts of confused on these. Can anyone help me out and show me how do get to these? 1. Given the following quadratic equation, find a. the vertex b. the axis of symmetry c. the intercepts d. the domain e. the range f. the interval where the function is increasing, and g. the interval where the function is decreasing h. Graph the function. y=-x^2+2x+8 2.  Given the following rational function, find  a. the horizontal asymptote(s),   b. the vertical asymptote(s), if any, and c. the oblique asymptote(s), if any. f(x)=6/(x-5) Click here to see answer by lynnlo(4174)
 Question 705760: Someone PLEASE help me!I'm am all sorts of confused on these. Can anyone help me out and show me how do get to these? 1. Given the following quadratic equation, find a. the vertex b. the axis of symmetry c. the intercepts d. the domain e. the range f. the interval where the function is increasing, and g. the interval where the function is decreasing h. Graph the function. y=-x^2+2x+8 2.  Given the following rational function, find  a. the horizontal asymptote(s),   b. the vertical asymptote(s), if any, and c. the oblique asymptote(s), if any. f(x)=6/(x-5) Click here to see answer by solver91311(18785)

 Question 705795: A farmer plans to enclose a rectangular region, using part of his barn for one side and fencing for the other three sides. If the side parallel to the barn is to be twice the length of an adjacent side, and the area of the region is to be 162 ft2, how many feet of fencing should be purchased? Click here to see answer by jsmallt9(3438)

 Question 705562: f(x)=-x^2+2x+7 Determine if this has a maximum or a minimum value. Then find the max/min value. Click here to see answer by jsmallt9(3438)

 Question 705265: 5x^2-5x=150 found solution using quadratic equation to be 6 and -5. 6^2=36 5*36=180 5*6=30 180-30=150 Use solution in original equation, 6 works, but for the life of me I cannot figure out what I am doing wrong with the -5 solution. -5^2=-25 -25*5=-125 Thanks 5*-5=-25 -125 --25=100 Click here to see answer by jsmallt9(3438)

 Question 706220: A purse sold for \$698 is now on sale and markdown 25% during the sale the purse is scratch and is reduced additional 20% off the selling price. What is the total discount amount? Click here to see answer by josmiceli(10616)

 Question 706353: A piece of sheet metal, w = 16 inches wide, is bent to form the gutter shown in the illustration. If the cross-sectional area is 24 square inches, find the depth of the gutter. Click here to see answer by josgarithmetic(3315)

 Question 706395: large plywood box has a volume of 768 ft3. Its length is 16 ft greater than its height, and its width is 4 ft less than its height. What are the dimensions of the box Click here to see answer by ankor@dixie-net.com(16524)

 Question 706444: In a certain electrical circuit,an engineer found out that the power P can be expressed by the function P=2x^2-60x+480 where x is the current.Can the power of the circuit ever be zero? Click here to see answer by ankor@dixie-net.com(16524)

 Question 706493: The store is selling a pearl necklace at \$2500 with a markup of 65% jill has a coupon for 35 % off the original selling price. What is the total of the purchase price? Click here to see answer by rfer(13569)
 Question 706493: The store is selling a pearl necklace at \$2500 with a markup of 65% jill has a coupon for 35 % off the original selling price. What is the total of the purchase price? Click here to see answer by god2012(108)

 Question 706505: the jeweler is selling a ring for \$4500 with a 100% markup what is the total price of the ring Click here to see answer by checkley79(3056)

 Question 706591: if you were given a quadratic relation in the form of: y=a(x-r)(x-s), what can you tell me about the graph relationship: a) direction of opening b) location of vertex c) pattern for y as x increases or decreases by 1 from the vertex d) X intercepts e) Y intercepts Click here to see answer by josgarithmetic(3315)

 Question 706871: A quadratic equation has -10 and 5 as solutions. Find the values of b and c if the value of a is 1. Thank in in advance for you help!! Click here to see answer by josgarithmetic(3315)

 Question 706862: I could really use some help on how to solve the following equation for t: Click here to see answer by josgarithmetic(3315)

 Question 707046: determine the value(s) of "k" for which there is one and only one real solution to the following quadratic: 10kx = -16x^2 - 25 Thank you Click here to see answer by jsmallt9(3438)

 Question 707166: Without solving, find the product and the sum of the roots for 4x^2-7x+3 I know that a=4 b=-7 & c=3, I also have the equation, x^2+(-7)/4x +3/4 but I have no idea where to go from there, So where do I go from there? Click here to see answer by jsmallt9(3438)

 Question 707084: The square of a certain number is 22 less than 13 times the original. Find the answer? Click here to see answer by jsmallt9(3438)

 Question 707182: Taylor has a box of coins that she uses when she plays poker with her friends. The box currently contains 44 coins, consisting of pennies, dimes, and quarters. The number of pennies is equal to the number of dimes, and the total value is \$4.37. How many quarters does she have in the box? Please explain how to solve!!! Click here to see answer by stanbon(60771)

 Question 706906: Solve by completing the square. the solution set is {___} Thank you for your help!! Click here to see answer by jsmallt9(3438)

 Question 707173: What is the store cost for a ring that has a selling price of \$4500 with a 1400% mark up? Click here to see answer by jim_thompson5910(29613)

 Question 707187: The length of a rectangle is 1m less than twice its width, and the area of the rectangle is 36m^2. Find the dimensions of the rectangle. Click here to see answer by jim_thompson5910(29613)

 Question 707181: Caroline Case won \$60,000 on a slot machine in Las Vegas. She invested part of the money at 2% simple interest and the rest at 3%. In one year, she earned a total of \$1600 in interest. How much was invested at the 3% rate? Please explain step by step how to solve thiS! Click here to see answer by jim_thompson5910(29613)

 Question 707306: The longer leg of a right triangle is ten less than three times the shorter leg. The hypotenuse is 4 more than the shorter leg. Please find the length of the shorter leg. Click here to see answer by stanbon(60771)

 Question 707478: 6x+1=x^2. .... Trying to solve by completing the square Click here to see answer by josmiceli(10616)

 Question 707544: Let g(x) = 5x − 7 + |x + 4|. Find all values of a which satisfy the equation g(a) = 4a + 3. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) Click here to see answer by josgarithmetic(3315)

 Question 707705: How do you calculate the interest charge on a \$5000 balance with your current 16.5% annual interest rate Click here to see answer by stanbon(60771)