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 Question 86665: Solve by using the quadratic formula... 1. 2x^2-7x=5 2. x^2=x+4 3. Find the distance between (7,0) and (-7,0) 4. Solve...x^2+8=17 Click here to see answer by Flake(45)

 Question 84581: Steve traveled 600 miles at a certain speed. Had he gone 20mph faster, the trip would have taken 1 hour less. Find the speed of his vehicle. Click here to see answer by Flake(45)

 Question 86756: 1.FIND THE CONSTANT TERM THAT SHOULD BE ADDED TO MAKE THE FOLLOWING EXPRESSION A PERFECT SQUARE TRINOMIAL.... X^2+5X 2. SOLVE BY COMPLETING THE SQUARE... X^2-4X+4=0 3. EVALUATE IF POSSIBLE... -3 ROOT OF 64 THANKS IN ADVCANCE FOR ALL OF YOUR HELP!!! Click here to see answer by tutorcecilia(2152)

 Question 86765: Hi, I am working on a quadratic equation: x^2 + 4x + 4 = 7. I'm not sure if I've arrived at the correct answer...I have x = 2(plus/minus) sq.rt. 7....am I correct in thinking this is the final answer? Thank you! Click here to see answer by Earlsdon(6294)
 Question 86765: Hi, I am working on a quadratic equation: x^2 + 4x + 4 = 7. I'm not sure if I've arrived at the correct answer...I have x = 2(plus/minus) sq.rt. 7....am I correct in thinking this is the final answer? Thank you! Click here to see answer by tutorcecilia(2152)

 Question 86792: The base of a ladder is 14 feet away from the wall. The top of the ladder is 17 feet from the floor. Find the length of the ladder to the nearest thousandth. Click here to see answer by checkley75(3666)

 Question 86791: simplify: (square root of 7) x (square root of 14) Click here to see answer by checkley75(3666)

 Question 86794: Find the altitude of the triangle: length- 13 length- 13 width- 10 Click here to see answer by Flake(45)

 Question 86779: Find the distance between (–3, –2) and (1, 4) Click here to see answer by checkley75(3666)

 Question 86776: I'm not sure if I'm on the right track to solving this quadratic equation...hopefully you can help! The original equation is: 2(x-5)^2=3. I think that after factoring and re-writing the equation it would look like this: 2x^2-20x+47, is that right? Then, to go from there, I'm not really sure...any help would be greatly appreciated! Thank you! Click here to see answer by Flake(45)

 Question 86777: Find the distance between (–4, 0) and (–5, –3) Click here to see answer by jim_thompson5910(28715)

 Question 86808: I do not understand quadratic equations. Here's my question from my book. Solve each equation and inequality. Write the solution set for each inequality in interval notation. a.) x^2 - x - 12 = 0 b.) x^2 - x - 12 < 0 c.)x^2 - x - 12 > 0 Click here to see answer by stanbon(57967)

 Question 86802: solve the equation by completeing the square a2(squared)-12a+27=0 Click here to see answer by stanbon(57967)
 Question 86802: solve the equation by completeing the square a2(squared)-12a+27=0 Click here to see answer by jim_thompson5910(28715)

 Question 86812: HI I have been working this problem over and over but I can't seem to get it right 5/5+3(1-5^2)/ I know the answer is 335 but I am not getting that answer any help will be appriciated Click here to see answer by checkley75(3666)

 Question 86834: Simplify. Assume x represents a positive number. sqrt45x^4 Click here to see answer by stanbon(57967)

 Question 86914: A garden area is 30 ft long and 20 ft wide. A path of uniform width is set around the edge. If the remaining garden area is 400 square foot, what is the width of the path? Click here to see answer by ankor@dixie-net.com(15746)

 Question 86816: How can you find the equation of the axis of symmetry for this parabola y=xsquared - 6x + 7 Click here to see answer by scott8148(6628)

 Question 87000: I still cant figure out the answer to this question even with this website. The question is: Solve by using te quadratic formula. 5x^2+4x-7=0 Click here to see answer by stanbon(57967)

 Question 87001: This isnt a quadratic formula problem, I dont know what type of problem it is, I just really need help in it. The problem is: Simplify d^2-2d-3 d^2-10d+24 d+1 d-4 They are like that because the problem is in fraction form Click here to see answer by checkley75(3666)

 Question 86795: simplify: square root of 125/square root of 5 Click here to see answer by checkley75(3666)

 Question 87033: I need help with a word problem- a radiator contains 10 qts of fluid, 30% of which is antifreeze. How much fluid should be drained and replaced with pure atifreeze so that the new mixture is 40% atifreeze. this is how I set the problem up .30(10-x)+x=.4(10) 3-.30x+x=4 -.30+x=1 .7x=1 1/.7 =1.42 qrts I would appreciate any help because I am not sure if that is correct or not Thank you KRockwell Click here to see answer by scott8148(6628)

 Question 87086: Use the arithmetic sequence of numbers 2, 4, 6, 8, 10… to find the following: a) What is d, the difference between any two consecutive terms? Answer: Show work in this space. b) Using the formula for the nth term of an arithmetic sequence, what is 101st term? Answer: Show work in this space. c) Using the formula for the sum of an arithmetic sequence, what is the sum of the first 20 terms? Answer: Show work in this space. d) Using the formula for the sum of an arithmetic sequence, what is the sum of the first 30 terms? Answer: Show work in this space. e) What observation can you make about the successive partial sums of this sequence (HINT: It would be beneficial to find a few more sums like the sum of the first 2, then the first 3, etc.)? Answer: Click here to see answer by jim_thompson5910(28715)

 Question 87089: Please help me with this word problem: A guy wire of length 50 feet is attached to the ground and to the top of an antenna. The height of the antenna is 10 feet larger than the distance from the base of the antenna to the point where the guy wire is attached to the ground. What is the height of the antenna? Click here to see answer by Flake(45)

 Question 87224: find the quadratic equation when one root is the square of the other Click here to see answer by Edwin McCravy(8999)

 Question 87238: Use the geometric sequence of numbers 1, 1/3, 1/9 , 1/27… to find the following: a) What is r, the ratio between 2 consecutive terms? Answer: Show work in this space. b) Using the formula for the sum of the first n terms of a geometric sequence, what is the sum of the first 10 terms? Carry all calculations to 6 decimals on all assignments. Answer: Show work in this space. c) Using the formula for the sum of the first n terms of a geometric sequence, what is the sum of the first 12 terms? Carry all calculations to 6 decimals on all assignments. Answer: Show work in this space. d) What observation can make about the successive partial sums of this sequence? In particular, what number does it appear that the sum will always be smaller than? Answer: Click here to see answer by jim_thompson5910(28715)

 Question 87266: Solve the following using the square root method or the quadratic equation. 66x^2 -31x -9 + 0 Not understanding this can you help Please!! Thanks Click here to see answer by jim_thompson5910(28715)

 Question 87265: Solve the following absolute value equations. / (stands for a striaght line, not division) /1265z + 26894/ = -36974 I really don't know how to begin this one, any help will be appriciated. Thanks Kim Click here to see answer by kev82(148)

 Question 87249: David drew a rectangle is 143 square mm. Derek drew a rectangle inside of David which is 35 square mm. Derek's rectangle has a three mm border between his and David's rectangle. What are the length and width of David rectangle? -Jason Click here to see answer by malakumar_kos@yahoo.com(315)

 Question 87254: The demand equation for a certain type of printer is given by D = -200p + 35,000 The supply equation is predicted to be S = -p square + 400p - 20,000 Find the equilibraum price Click here to see answer by longjonsilver(2297)