http://www.algebra.com All new stuff on algebra.com en-us Copyright Algebra.Com 2009-11-08T09:11+00:00 webmaster@algebra.com webmaster@algebra.com for students and tutors 1901-01-01T00:00+00:00 12 hourly http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236331 This problem was solved by Theo: N is 80% of P N to the root of 2 is what percent of P to the root of 2? http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236323 This problem was solved by Theo: A TRAIN TRAVELS 20 FEET IN IN 1/5 OF A SECOND, AT THE SAME SPEED HOW MANY FEET WILL IT TRAVEL IN 3 SECONDS? http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236335 This problem was solved by MissionPossible: 2.) Determine the future values if $5,000 is invested in each of the following situations: a.) 5 percent for ten years Begin with $100 - - - > 5 percent for 1 year - - > 105 then with each $1 - - - > 105/100 = 1.05 after 1 year Then for $5,000 it would be 5,000 * 1.05 after 1 year and then 5,000 * 1.05 * 1.05 after 2 year for 10 year investment it would be 5,000 * (1.05)^10 = $8144.475 Ans http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236336 This problem was solved by Theo: I was asked to simplify this 4z to the eighth power z to the -6 power y to the -9 power times 5y to the -1 power w to the -7 power times 2w to the 7th power i have not had math for over 30 years stuck bad. Do you also know of any websites that gives free help and explanation of problems and rules. Any help greatly appreciated http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236338 This problem was solved by nerdybill: how to find the exact value of sin 225 http://www.algebra.com/tutors/faq.mpl?key=236339&action=answer_question Click on the link to solve this problem: Construct a parallelogram ABCD. Extend the side [AB] such that BM = AB. Line (MC) intersects (AD) at N. The perpendicular to (BD) passing through A cuts (CD) at P. The perpendicular to (BD) passing through C cuts (AB) at Q. Let R be the foot of the perpendicular from D to (MN). Let S be the foot to the perpendicular from B to (MN). Compare [AD] and [DN], and compare [DR] and [BS]. http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236324 This problem was solved by nerdybill: Radioactive strontium 90Sr has been deposited in a large field by acid rain. If sufficient amounts make their way through the food chain to humans, bone cancer can result. It has been determined that the radioactivity level in the field is 1.7 times the save level S. 90Sr decyas according to the formula A(t)=Aoe^-0.0239t where Ao is the amount curretly in the field and t is the time in years. How many years will it take until the field is contaminated. http://www.algebra.com/tutors/faq.mpl?key=236337&action=answer_question Click on the link to solve this problem: simplify ,assume that no denominator is equal to zero t raise to the power of 7 over t raise to the power of 2 http://www.algebra.com/tutors/faq.mpl?key=236334&action=answer_question Click on the link to solve this problem: use the fundamental identities to simplfy csc^2(beta)((1-cos^2(beta)) http://www.algebra.com/tutors/faq.mpl?key=236333&action=answer_question Click on the link to solve this problem: Is 4 a solution to (y-2)+2=3/8(3y4) http://www.algebra.com/tutors/faq.mpl?key=236332&action=answer_question Click on the link to solve this problem: Is 4 a solution to (y-2)+2=3/8(3*y4) http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236325 This problem was solved by nerdybill: A car radiator has a capacity of 8 quarts of coolant which is 20% antifreeze. A mechanic needs to drain part of the radiator fluid and replace it with 100% antifreeze to bring the coolant in the system to 60% antifreeze. How much of the original coolant should be drained and replaced by 100% antifreeze to achieve the desired mix? http://www.algebra.com/tutors/faq.mpl?key=236330&action=answer_question Click on the link to solve this problem: If a radius of a certain circle is tripled, with 8.2 centimeters then added, the result is the circumference of the circle. Find the radius of the circle. http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236108 This problem was solved by Edwin McCravy: A cube is painted red and then cut into 1000 identical smaller cubes. How many of these cubes are painted red on at least two faces? http://www.algebra.com/tutors/faq.mpl?key=236329&action=answer_question Click on the link to solve this problem: suppose that 18,000 is invested in two types of bonds for one year. Part of the money is invested in a high-risk, high growth fund that earned 24% annual interest. The rest is invested in a safe fund that earned 5% annual interest. If $2320 in interest is earned, how much was invested at each rate? http://www.algebra.com/tutors/faq.mpl?key=236328&action=answer_question Click on the link to solve this problem: Rewrite as an equivalent exponential equation. Do not solve log10^0.000001 = 6 http://www.algebra.com/tutors/faq.mpl?key=236327&action=answer_question Click on the link to solve this problem: solve the quadratic equation by using the square root property. 4(a-5)^2=1 http://www.algebra.com/tutors/faq.mpl?key=236326&action=answer_question Click on the link to solve this problem: if /algebra/homework/equations/change-this-name26062.lesson lesson 'Basic Equations' in section 'Equations' http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=235980 This problem was solved by punksnotdead28: I don't understand how to solve the compound inequality. Any help will be greatly appreciated. Thank you!! 5>-2x+4 or 8< equal to -3x + 4 http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236034 This problem was solved by punksnotdead28: Can you please explain this to me? I think the argument is correct, but I'm not 100% and I wouldn't know where to begin explaining why. Thanks so much for your help!! Hosni gave the following argument that - (a + b) = -a + -b, for all integers a and b. If the argument is correct, supply the missing reasons. If it is incorrect, explain why not. -(a + b) = (-1)(a + b) = (-1)a + (-1)b = -a + -b http://www.algebra.com/tutors/faq.mpl?key=236322&action=answer_question Click on the link to solve this problem: how do you convert 4 1/8 pounds to ounces. http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236086 This problem was solved by punksnotdead28: Find the equation of the line that contains the give point and has the given slope P(2,3),m=1/2 http://www.algebra.com/cgi-bin/jump-to-question.mpl?question=236319 This problem was solved by punksnotdead28: In a basketball game, Will scored 26 points, consisting only of three-point shots and two-point shots. He made a total of 11 shots. How many shots of each type did he make? http://www.algebra.com/tutors/faq.mpl?key=236321&action=answer_question Click on the link to solve this problem: factor 15 x to the 3rd- 5x