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# Recent problems solved by 'richwmiller'

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 Square-cubic-other-roots/607320: how do u solve and equation1 solutions Answer 382640 by richwmiller(9135)   on 2012-05-05 13:37:54 (Show Source): You can put this solution on YOUR website!yes
 Travel_Word_Problems/607338: You are going 158mph in Indianapolis which is about 1200 miles west of Dayton, when the cop catch up to you. If you stole the car at 11 pm in Dayton, how long did it take you to get to Indy, and what time is it when the cops saw you? You see a spike in the road about 3 miles up the road, so you decide to cross over the median, ( in a semi circle motion) and turn back around and head to Canada for safety. You accelerate at 1000ft/s/s how log does it take you to get back up to your cruisig speed of 158mph? If Canada is 450 miles away from where you are how long will it take you to get there assuming there will be no more cops in your way. 1 solutions Answer 382639 by richwmiller(9135)   on 2012-05-05 13:37:03 (Show Source): You can put this solution on YOUR website!There is no way you are going to maintain that speed for so long. Traffic jams will slow you down. You will run out of gas long before that however. as far as turning around you won't make it at your speed. You saw a spike three miles away! I don't think so. You are lucky to spot one 30 ft away. You won't get across the border either. Have you tried to cross the border since 9/11?
 Travel_Word_Problems/607346: Can the formula d =6t be used to find the distance (d) in miles traveled by an airplane at a certain speed for t minutes. according to the formula what is the speed of the airplane in miles per hour 1 solutions Answer 382638 by richwmiller(9135)   on 2012-05-05 13:32:27 (Show Source): You can put this solution on YOUR website!d=r*t where r is the speed.
 Linear-equations/607343: 1.If f(x) = 4x2 - 3x + 2, evaluate f(-1). 2.State the domain of the function f(x) = (x+3)/(x-1). 3.Write the equation of the line that passes through the points (1, 1) and (2, Write your answer in slope-intercept form. 4.Write the equation of the line with a slope of 2/3 and y-intercept of 1. Write your answer in slope-intercept form. 5.Solve the equation: (4x+1)(2x-7) =0. 6.If f(x) = 4x + 3, evaluate f(x+h). 7.If g(x) = x², evaluate g(x+h). 8.If f(x) = -x + 1, evaluate f(x+h). 9.If f(x) = -x + 1, evaluate f(x-h). 10.Use the quadratic formula to solve the equation: x² - x - 1 = 0. 1 solutions Answer 382637 by richwmiller(9135)   on 2012-05-05 13:31:06 (Show Source): You can put this solution on YOUR website!one problem per submission and no similar problems limit of 5 problems per day
 Money_Word_Problems/607347: E5-3 Gabrielle just won \$2.5 million in the state lottery. She is given the option of receiving a total of \$1.3 million now, or she can elect to be paid \$100,000 at the end of each of the next 25 years. If Gabrielle can earn 5% annually on her investments, from a strict economic point of view which option should she take?1 solutions Answer 382636 by richwmiller(9135)   on 2012-05-05 13:29:28 (Show Source): You can put this solution on YOUR website!Take the 100,000 dollars. She will pay less tax and the total will be 2.5 million plus she will have interest of 1/2 million dollars.
 Linear-equations/607352: I am totally stuck, I do not know where to start any help would be greatly appreciated. Thanks Determine how many solutions exist Use either elimination or substitution to find the solutions (if any) Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersection x/3 - y/5 = 4 and 3x/4 + 2y/3 = 6 1 solutions Answer 382634 by richwmiller(9135)   on 2012-05-05 13:23:34 (Show Source): You can put this solution on YOUR website!Since you don't have any idea where to begin, may I suggest looking in your book.
 Finance/607359: A car dealer carries out the following calculations. What is the annual percentage rate? (Round your answer to the nearest tenth.) List price \$ 5,368.00 Options \$ 1,625.00 Destination charges \$ 200.00 Subtotal \$ 7,193.00 Tax \$ 431.58 Less trade-in \$ 2,932.00 Amount to be financed \$ 4,692.58 8% interest for 48 months \$ 1,501.63 MONTHLY PAYMENT \$ 129.05 %1 solutions Answer 382633 by richwmiller(9135)   on 2012-05-05 13:22:22 (Show Source): You can put this solution on YOUR website!Do you really need to take up so much space?
 Mixture_Word_Problems/606766: Ellie has 20 pounds of nut mix at her store. The mix contains 10% walnuts. She wants to add walnuts to the mix so that it becomes 25% walnuts. How many pounds of walnuts must Ellie add?1 solutions Answer 382247 by richwmiller(9135)   on 2012-05-03 15:56:32 (Show Source): You can put this solution on YOUR website!She has 2 lbs of walnuts now. .25(x+20)=.10*(20)+x x=4 check .25(24)=2+4 6=6 ok
 Polynomials-and-rational-expressions/606801: I'm a sophmore but unfortunately I'm still in algebra 1. right now we're working on Subtracting Polynomials. i was wondering if someone could help me with a specific problem. (3xsquared+7x+1)-(8+5x+xsquared)1 solutions Answer 382243 by richwmiller(9135)   on 2012-05-03 15:50:49 (Show Source): You can put this solution on YOUR website!Each polynomial has three terms. Subtract like terms one at a time. I hope you enjoy Algebra 1 as a junior as much as you are enjoying it as a sophomore. Notice how to spell sophomore.
 Quadratic-relations-and-conic-sections/606800: Classify the conic section . 4x^2-y+3=0 Write its equation in standard form.1 solutions Answer 382242 by richwmiller(9135)   on 2012-05-03 15:49:51 (Show Source): You can put this solution on YOUR website!You asked this 3 minutes ago.
 Travel_Word_Problems/606757: can someone write a monologue for me for the warden in the book holes1 solutions Answer 382239 by richwmiller(9135)   on 2012-05-03 15:49:11 (Show Source): You can put this solution on YOUR website!I would doubt it.
 Equations/606783: How do you simplifly by factoring this equation? 5x^2 -37x+14?1 solutions Answer 382238 by richwmiller(9135)   on 2012-05-03 15:47:10 (Show Source): You can put this solution on YOUR website!we want factors of 70 that add up to -37 -35 and -2 5x^2-35x-2x+14 5x*(x-7)-2*(x-7) (x-7)*(5x-2)
 Polynomials-and-rational-expressions/606795: Factor completely 100-c^61 solutions Answer 382234 by richwmiller(9135)   on 2012-05-03 15:43:46 (Show Source): You can put this solution on YOUR website!remember that a^2-b^2=(a+b)*(a-b) 100=a^2 so a=10 b^2=c^6=(c^3)^2 (10-c^3)*(10+c^3)
 Polynomials-and-rational-expressions/606793: Helping my niece with her home work. Can you help me simplify or solve the below equation? ((r+5)/r^2)+(1/5r^2)=3/r^21 solutions Answer 382231 by richwmiller(9135)   on 2012-05-03 15:39:18 (Show Source): You can put this solution on YOUR website!r^2 is in every denominator. multiply the equation by r^2 r+5+1/5=3 r+5.2=3 r=-2.2
 Mixture_Word_Problems/606784: How many pounds of copper is in a bike?1 solutions Answer 382230 by richwmiller(9135)   on 2012-05-03 15:34:56 (Show Source): You can put this solution on YOUR website!yes
 test/606786: 1 solutions Answer 382229 by richwmiller(9135)   on 2012-05-03 15:34:24 (Show Source): You can put this solution on YOUR website!no
 test/606791: 1 solutions Answer 382228 by richwmiller(9135)   on 2012-05-03 15:33:53 (Show Source): You can put this solution on YOUR website!yes
 Numbers_Word_Problems/606789: i am less than 50.i am greater than 39.my tens digit is 2 more than my ones digit.what number am i?1 solutions Answer 382225 by richwmiller(9135)   on 2012-05-03 15:33:09 (Show Source): You can put this solution on YOUR website!39 y=z+2 x=10y+z x=42
 Problems-with-consecutive-odd-even-integers/606748: what three consecutive odd intergers have a sum of -75?1 solutions Answer 382205 by richwmiller(9135)   on 2012-05-03 13:45:59 (Show Source): You can put this solution on YOUR website!-24 -25 -26
 test/606733: Carlson has saved \$564 at bank. He wants to save \$ 2030 for a trip to Alaska. What percent of his goal has been reached?1 solutions Answer 382202 by richwmiller(9135)   on 2012-05-03 13:42:56 (Show Source): You can put this solution on YOUR website!(564/2030)*100= about 27.78%
 test/606749: 1. List the possible rational roots for the equation: x3 + x2 - 4x + 4 = 0 {±1, ±2, ±4} No answer is correct. {1, 2, 4} {±1, -2} 1 solutions Answer 382201 by richwmiller(9135)   on 2012-05-03 13:41:06 (Show Source): You can put this solution on YOUR website!no answer is correct the one real root is about -2.87513 exact form is x = 1/3 (-1-13/(73-6 sqrt(87))^(1/3)-(73-6 sqrt(87))^(1/3))
 Quadratic_Equations/606745: I am confused. Would someone please check this problem out and clarify the correct answer for me? I submitted the problem and two different tutors on this site have given me different answers. Now I do not know which answer is correct. the problem is: find the vertex, the line of symmetry, and the max or min value of f(x), then graph the function. f(x) = 1/3(x+5)^2 + 3 I received the answer: vertex: (-5, 3) line of symmetry: x = 5 and, 3 as the minimum value of f(x) one tutor said the line of symmetry is -5, and the other said it is 51 solutions Answer 382199 by richwmiller(9135)   on 2012-05-03 13:38:08 (Show Source): You can put this solution on YOUR website!The vertex is either the high or low point of the function. Here it is the low point. The vertex is (-5, 3)where x=-5 and y=3 then the line of symmetry is x=-5 and the low point (minimum) is f(x)=y=3
 Exponential-and-logarithmic-functions/606738: Factor completely. 80c^2+200cd+125d^2= I have tried so many times to get this right, and for the life of me I can't get it right. Any help is appreciated. Thanks1 solutions Answer 382196 by richwmiller(9135)   on 2012-05-03 13:33:55 (Show Source): You can put this solution on YOUR website!first factor out the obvious 5 5*(16c^2+40cd+25d^2) 5*(4c+5d)^2
 Square-cubic-other-roots/606739: Can you teach me algebra 1?1 solutions Answer 382193 by richwmiller(9135)   on 2012-05-03 13:30:41 (Show Source): You can put this solution on YOUR website!Yes, I can. Will I? No! Try going to school.
 test/606741: Solve using elimination mood if the system has no solution or an infinite number of solutions, state this 9x - 2y = 88 -9x + 2y = -881 solutions Answer 382192 by richwmiller(9135)   on 2012-05-03 13:29:40 (Show Source): You can put this solution on YOUR website!They are the same line and therefore have infinite solutions. one is the other multiplied by -1
 Linear-systems/603907: Can you solve the equation 4x-5y=3, x=1/2y-31 solutions Answer 380897 by richwmiller(9135)   on 2012-04-26 17:01:06 (Show Source): You can put this solution on YOUR website!which one?
 Square-cubic-other-roots/603829: Find the roots. 2x^2+13x+15=01 solutions Answer 380846 by richwmiller(9135)   on 2012-04-26 11:16:34 (Show Source): You can put this solution on YOUR website!find factors of 30 that add up to 13 10 and 3 2x^2+10x+3x+15 2x*(x+5)+3(x+5) (2x+3)*(x+5) 2x+3=0 2x=-3 x=-3/2 x+5=0 x=-5
 Surface-area/603507: How many inches are there I'm 2.5 yards?1 solutions Answer 380732 by richwmiller(9135)   on 2012-04-25 17:41:01 (Show Source): You can put this solution on YOUR website!there are 36 inches in one yard 36*2.5
 Quadratic_Equations/603515: Can someone give me an example of a problem that a graph would work well on? 1 solutions Answer 380729 by richwmiller(9135)   on 2012-04-25 17:35:37 (Show Source): You can put this solution on YOUR website!check your math book
 Mixture_Word_Problems/602777: You are offered two different jobs selling college textbooks. One company offers an annual salary of \$25,000 plus a year-end bonus of 2% of your total sales. The other company offers an annual salary of \$20,000 plus a year-end bonus of 3% of your total sales. Determine annual sales required to make the second offer better.1 solutions Answer 380428 by richwmiller(9135)   on 2012-04-24 08:36:26 (Show Source): You can put this solution on YOUR website!25000+.02x=20000+.03x 5000=.01x 500000=x You have to sell more than \$500000 for the second plan to be worth more than the first.
 Polynomials-and-rational-expressions/602823: Find the remaining factors of 2x^3-15x^2-2x+120 if 2x+5 is one of the factors. Please show me the steps. A.x-3,x-8 B.x+3,x+8 c.x+6,x+4 D.x-12,x-2 E.none of these1 solutions Answer 380427 by richwmiller(9135)   on 2012-04-24 08:23:28 (Show Source): You can put this solution on YOUR website!multiply out the factors in a,b c, and d then multiply by 2x+5 the one that equals the original polynomial is the answer.