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Recent problems solved by 'Alan3354'

Alan3354 answered: 30948 problems
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Proportions/429690: what is 10,000 gallons of water/4 gallons of water=6 gallons of water/x teaspoons of acid equal to using a proportion 1 solutions Answer 298430 by Alan3354(30968)   on 2011-03-31 17:11:03 (Show Source): You can put this solution on YOUR website! You'll have to provide the conversion for teaspoons to gallons.

test/429590: What I the answer to 3y-5y+10=36 1 solutions Answer 298372 by Alan3354(30968)   on 2011-03-31 13:29:36 (Show Source): You can put this solution on YOUR website! What I the answer to 3y-5y+10=36 ------------------- What is the question? If you want to solve for y, say that. The other tutor did that.

Geometry_Word_Problems/429585: In circle O, the m angle DOG = 92° and the length of arc DG is 16. Calculate the length of the radius. Use 3.14 for π. How would you find this? Do not tell me the answer but show me how one would accomplish this problem. 1 solutions Answer 298370 by Alan3354(30968)   on 2011-03-31 13:26:57 (Show Source): You can put this solution on YOUR website! In circle O, the m angle DOG = 92° and the length of arc DG is 16. Calculate the length of the radius. Use 3.14 for π. How would you find this? Do not tell me the answer but show me how one would accomplish this problem. ----------------- total circumference r =~ 9.964 ---------------- Using radians is recommended, as the other tutor did. It simplifies things, tho they're scary at first.

Linear_Algebra/429582: Use Linear Combinations to solve the Linear System 2-7x=9y 2y-4x=6 I dont get how you use linear combinations to solve this. My book doesn't explain things into detail and my teacher doesn't either. Thanks! 1 solutions Answer 298367 by Alan3354(30968)   on 2011-03-31 13:17:30 (Show Source): You can put this solution on YOUR website! Use Linear Combinations to solve the Linear System 2-7x=9y 2y-4x=6 ----------- Not sure what you mean by combinations. I'll use elimination, which in a way combines the 2 eqns. 2-7x=9y 2y-4x=6 -------- 9y+7x = 2 eqn 1 1y-2x = 3 eqn 2 divided by 2 ---------- 9y + 7x = 2 eqn 1 9y -18x = 27 eqn 2 divided by 2 then x9 ---------- Subtract 0y +25x = -25 x = -1 --------- 1y-2x = 3 Sub for x y + 2 = 3 y = 1 That's it.

Exponents/429554: I'm trying to remember how to solve: A exponent 5 / A exponent 9 1 solutions Answer 298365 by Alan3354(30968)   on 2011-03-31 13:11:17 (Show Source): You can put this solution on YOUR website! It's not solving, just simplifying.

Exponents/429584: Rewrite the expression using positive exponents 2x/y^-2 1 solutions Answer 298363 by Alan3354(30968)   on 2011-03-31 13:02:29 (Show Source): You can put this solution on YOUR website! Rewrite the expression using positive exponents 2x/y^-2 ----------------- Multiply NUM and DEN by y^2 = = -------------- As a shortcut, moving a factor or term from the NUM to the DEN or vice versa changes its sign.

Square-cubic-other-roots/429560: I have to explain in one paragraph how to simplify, 1.) 16 1/2 2.) square root of 100 1 solutions Answer 298357 by Alan3354(30968)   on 2011-03-31 12:54:48 (Show Source): You can put this solution on YOUR website! I have to explain in one paragraph how to simplify, 1.) 16 1/2 = 16.5 or 33/2 ?? ------------ 2.) square root of 100 = ± 10 10*10 = 100 (-10)*(-10) = 100 ----------- Short paragraphs.

Trigonometry-basics/429492: cosx*tgx+sin2x=2 1 solutions Answer 298356 by Alan3354(30968)   on 2011-03-31 12:52:32 (Show Source): You can put this solution on YOUR website! Is sin2x sin(2x), or sin^2(x) ?? I assume tgx means tan(x)

Age_Word_Problems/429575: find two consecutive even numbers whose sum is 66 1 solutions Answer 298353 by Alan3354(30968)   on 2011-03-31 12:39:54 (Show Source): You can put this solution on YOUR website! 66/2 = 33, the center --> 32 & 34

Problems-with-consecutive-odd-even-integers/429489: i am the largest of three consecutive numbers whose product is 366 1 solutions Answer 298333 by Alan3354(30968)   on 2011-03-31 10:41:18 (Show Source): You can put this solution on YOUR website! i am the largest of three consecutive numbers whose product is 366 ------------ =~ 7 the middle 6*7*8 = 336 7*8*9 = 504 ------------- I think you meant 336

Numeric_Fractions/429538: 1/7 + 12/x 1 solutions Answer 298325 by Alan3354(30968)   on 2011-03-31 10:12:44 (Show Source): You can put this solution on YOUR website! Do you have a question?

Radicals/428450: Hello. I am having serious difficulties with the following problem; I must have tried solving it a few times, but my answer is still very different from the book. Please help me solve it. Thank you. [(x-y)/({(x)^(3)*y}-{2(x)^(2)*(y)^(2)}+{x*(y)^(3)})]^(1/2) 1 solutions Answer 297807 by Alan3354(30968)   on 2011-03-28 22:04:10 (Show Source): You can put this solution on YOUR website! There's nothing to solve, it's not an equation. Maybe you want to simplify it ? ---------------- = = = =

Exponential-and-logarithmic-functions/428452: ln2.5x=10 1 solutions Answer 297806 by Alan3354(30968)   on 2011-03-28 21:49:48 (Show Source): You can put this solution on YOUR website! ln(2.5x)=10 Is that what you mean? ---------- x =~ 8810.586

Square-cubic-other-roots/428433: how do u get 289 times 48? 1 solutions Answer 297805 by Alan3354(30968)   on 2011-03-28 21:46:02 (Show Source): You can put this solution on YOUR website! I use a calculator

Surface-area/428438: what is the length and width of a rectangle whose area is 648 1 solutions Answer 297803 by Alan3354(30968)   on 2011-03-28 21:45:22 (Show Source): You can put this solution on YOUR website! Not enough info There are an infinite number of solutions L*W = 648 1*648 2*324 3*216 4*162 etc

Linear-systems/428377: 2x+y=41 1 solutions Answer 297776 by Alan3354(30968)   on 2011-03-28 20:26:01 (Show Source): You can put this solution on YOUR website! Do you have a question?

Polynomials-and-rational-expressions/428393: Factor each polynomial twice 12x^ - 28x - 24 1 solutions Answer 297775 by Alan3354(30968)   on 2011-03-28 20:25:24 (Show Source): You can put this solution on YOUR website! what is 12x^ ?? What's the exponent?

Polynomials-and-rational-expressions/428354: how do you factor a^2-5a+6 please explain how or show how, thankyou 1 solutions Answer 297763 by Alan3354(30968)   on 2011-03-28 19:45:00 (Show Source): You can put this solution on YOUR website! The form will be (a - f)*(a - g) -------------------- Look at the factors of 6 It's either 1 & 6 or 2 & 3 The signs will be the same, since it's a +6 Both will be negative, since it's -5a

Probability-and-statistics/428232: a couple plans to have 5 children. what is the probability of having exactly two boys? 1 solutions Answer 297760 by Alan3354(30968)   on 2011-03-28 19:42:27 (Show Source): You can put this solution on YOUR website! There are 32 possible combinations of 5 children, ---------- GGGGG GGGGB GGGBG GGGBB GGBGG GGBGB GGBBG GGBBB GBGGG etc --------- 8 of the combinations have exactly 2 boys 8/32 = 1/4

Expressions-with-variables/428361: Give an equation of a line perpendicular to the line y = 4x having the same y-intercept 1 solutions Answer 297759 by Alan3354(30968)   on 2011-03-28 19:38:42 (Show Source): You can put this solution on YOUR website! The y-int is zero. The slope is the negative inverse of 4, = -1/4 --> y = -x/4

Polynomials-and-rational-expressions/428306: how do you fiend factorization 1 solutions Answer 297736 by Alan3354(30968)   on 2011-03-28 18:22:34 (Show Source): You can put this solution on YOUR website! In most cases, the instructor finds it and asks you to do the work.

Volume/428305: a car traveled 23 miles east and then 18 miles north. how far is the car from the starting point? 1 solutions Answer 297735 by Alan3354(30968)   on 2011-03-28 18:21:36 (Show Source): You can put this solution on YOUR website! It's Pythagoras again. You take it from there.

Radicals/428230: how do you simplify a raadical expression like the square root of 200, mandi.williford@yahoo.com thank you 1 solutions Answer 297703 by Alan3354(30968)   on 2011-03-28 16:34:47 (Show Source): You can put this solution on YOUR website!

Triangles/428179: If 3/8 of the perimeter of an equilateral triangle is 6ft, what is the length of one side? and how did you get the answer? 1 solutions Answer 297688 by Alan3354(30968)   on 2011-03-28 15:26:09 (Show Source): You can put this solution on YOUR website! (3/8)*p = 6 (1/8)*p = 2 p = 16 ------------ One side = p/3 = 16/3 ft

Parallelograms/428192: What is the distance between points A(-2,2) and B(1,6) please and thank you 1 solutions Answer 297686 by Alan3354(30968)   on 2011-03-28 15:11:36 (Show Source): You can put this solution on YOUR website! It's Pythagoras again. Can you finish it?

Expressions-with-variables/428159: Solve using the elimination method. Show all work. 4x + 8y = 16 -2x + 5y = 55 1 solutions Answer 297675 by Alan3354(30968)   on 2011-03-28 14:31:49 (Show Source): You can put this solution on YOUR website! 4x + 8y = 16 -2x + 5y = 55 ---------- 2x + 4y = 8 eqn 1 x 1/2 -2x + 5y = 55 --------------- Add 9y = 63 y = 7 ------ x = -10

logarithm/428156: solve for T using the rules of logarithms, round answer to three decimal places: 6^T=5^T+1 1 solutions Answer 297670 by Alan3354(30968)   on 2011-03-28 14:23:03 (Show Source): You can put this solution on YOUR website! If the exponent of 5 is t+1, t*log(6) = (t+1)*log(5) = tlog(5) + log(5) tlog(6) - t*log(5) = log(5) t = log(5)/(log(6) - log(5)) = log(5)/log(1.2) t =~ 8.827

Polynomials-and-rational-expressions/428154: Divide. Can you help with this. 1 solutions Answer 297666 by Alan3354(30968)   on 2011-03-28 14:11:43 (Show Source): You can put this solution on YOUR website! Divide all terms by 5 Then by x Then by y

Polynomials-and-rational-expressions/428150: I have worked this problem at least six times on paper. This particular area is giving me a headache. Please help. Find the polynomial with the lowest degree having the following zeros -2, 2-i A)x^3+6x^2+10 B)6x^2+13x+10 C)x^3+6x^2+13x+10 D)x^3+2x+3x-10 E)None of the above 1 solutions Answer 297661 by Alan3354(30968)   on 2011-03-28 14:01:37 (Show Source): You can put this solution on YOUR website! Find the polynomial with the lowest degree having the following zeros -2, 2-i -------- Complex roots always occur in pairs, so add 2+i as a zero --> (x+2)*(x-2-i)*(x-2+i) = = --> E --------------- A)x^3+6x^2+10 B)6x^2+13x+10 C)x^3+6x^2+13x+10 D)x^3+2x+3x-10 E)None of the above

Volume/428145: how much water a pan hold in the metric unit 1 solutions Answer 297658 by Alan3354(30968)   on 2011-03-28 13:42:22 (Show Source): You can put this solution on YOUR website! Small ones hold less than big ones. To be more specific, you'll have to give more info.

logarithm/428146: I am trying to rewrite 1/(e^x + e^-x) in the form e^x/(e^2x + 1) Its for an improper integral problem. This form is in the solution manual so that it will fit easily into an arctan format. I'm not sure how to rewrite it from form 1 to form 2. 1 solutions Answer 297657 by Alan3354(30968)   on 2011-03-28 13:40:31 (Show Source): You can put this solution on YOUR website! It's as you show. The NUM and DEN are multiplied by e^x