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Recent problems solved by 'Alan3354'

Alan3354 answered: 30973 problems
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Quadratic-relations-and-conic-sections/750948: I have 20 zeros and my Algebra teacher said I cant make any of them up. I will litery kill myself if I dont pass. Im done, I need help. 1 solutions Answer 456928 by Alan3354(30993)   on 2013-05-20 22:03:54 (Show Source): You can put this solution on YOUR website! I have 20 zeros and my Algebra teacher said I cant make any of them up. I will litery kill myself if I dont pass. Im done, I need help. --------------- That seems drastic. It also seems late to start looking for help.

Numeric_Fractions/750942: N+6=6x(2+3) 1 solutions Answer 456900 by Alan3354(30993)   on 2013-05-20 19:54:10 (Show Source): You can put this solution on YOUR website! N+6=6x(2+3) ---------- Do you have a question?

Polynomials-and-rational-expressions/750899: simplify 14x to the fifth y to the seventh over 28y to the eighth 1 solutions Answer 456894 by Alan3354(30993)   on 2013-05-20 19:11:55 (Show Source): You can put this solution on YOUR website! simplify 14x to the fifth y to the seventh over 28y to the eighth ----------- Use ^ (Shift 6) for exponents

Expressions-with-variables/750926: Solve: √x+3-5=1 The radical is extended across the top of the entire equation.. I'm stuck please help 1 solutions Answer 456893 by Alan3354(30993)   on 2013-05-20 19:09:37 (Show Source): You can put this solution on YOUR website! The radical is extended across the top of the entire equation.. I'm stuck please help ---------- You can't have an equal sign under a radical.

Functions/750937: 297 over 16 mixed numeral 1 solutions Answer 456892 by Alan3354(30993)   on 2013-05-20 19:08:34 (Show Source): You can put this solution on YOUR website! 297 over 16 mixed numeral --------- What about it?

logarithm/750904: (1/2)ln(x-3)-ln(x+2) 1 solutions Answer 456891 by Alan3354(30993)   on 2013-05-20 19:04:18 (Show Source): You can put this solution on YOUR website! (1/2)ln(x-3)-ln(x+2) ---- Do you have a question?

Angles/750928: can u answer this question for me: if i were 10 degrees larger, i would equal my complement 1 solutions Answer 456889 by Alan3354(30993)   on 2013-05-20 19:02:07 (Show Source): You can put this solution on YOUR website! can u answer this question for me: if i were 10 degrees larger, i would equal my complement ----------- Equal complements --> 90/2 = 45 degs --> 35 degs ---------- x + 10 = 90 - (x+10) x + 10 = 90 - x - 10 2x = 70 x = 35 degs

Money_Word_Problems/750932: how much money should be deposited today in an account that earns 8% compounded quarterly so that it will accumulate to $3800 in 12 years. Please give explanation/show work 1 solutions Answer 456888 by Alan3354(30993)   on 2013-05-20 18:58:41 (Show Source): You can put this solution on YOUR website! how much money should be deposited today in an account that earns 8% compounded quarterly so that it will accumulate to $3800 in 12 years. Please give explanation/show work ------------ Solve for PV (Present Value)

Equations/750908: The sum of the squares of three consecutive positive integers is 77. Find the integers. 1 solutions Answer 456878 by Alan3354(30993)   on 2013-05-20 18:33:04 (Show Source): You can put this solution on YOUR website! The sum of the squares of three consecutive positive integers is 77. Find the integers. --------- 77/3 = ~25 sqrt(25) = middle number

Linear-systems/750913: y=2x,y-2x=0 1 solutions Answer 456875 by Alan3354(30993)   on 2013-05-20 18:29:42 (Show Source): You can put this solution on YOUR website! y=2x,y-2x=0 ---------- Do you have a question?

Triangles/750563: whats the value of x 1 solutions Answer 456706 by Alan3354(30993)   on 2013-05-19 22:04:37 (Show Source): You can put this solution on YOUR website! whats the value of x ----------- It varies. It's a variable.

Quadratic_Equations/750514: Y=2x^2-6x-8 1 solutions Answer 456646 by Alan3354(30993)   on 2013-05-19 18:52:16 (Show Source): You can put this solution on YOUR website! Y=2x^2-6x-8 ----------- And? Do you have a question?

Expressions-with-variables/750512: Simplify "v" to the 6th power multiplied by "v" to the 3rd power, then "v" to the 6th power. Would the v6's cancel each other out? 1 solutions Answer 456644 by Alan3354(30993)   on 2013-05-19 18:47:34 (Show Source): You can put this solution on YOUR website! Simplify "v" to the 6th power multiplied by "v" to the 3rd power, then "v" to the 6th power. -------------- Multiplying --> adding exponents. ------------------- Would the v6's cancel each other out? No, they're added. If one was -6, then they would "cancel." 6 + (-6) = 0

Expressions-with-variables/750510: Simplify (3c)to the 4th power. 1 solutions Answer 456642 by Alan3354(30993)   on 2013-05-19 18:43:18 (Show Source): You can put this solution on YOUR website! Simplify (3c)to the 4th power. ------------- Is that simpler? Is there some reason you couldn't do that?

Equations/750499: A phone number contains 7 digits. The product of these digits is an even perfect square. Given this, what can be the sum of these seven digits. 1 solutions Answer 456639 by Alan3354(30993)   on 2013-05-19 18:40:06 (Show Source): You can put this solution on YOUR website! A phone number contains 7 digits. The product of these digits is an even perfect square. Given this, what can be the sum of these seven digits. ----------------- There are many possibilities. eg, 122 2222 --> 13 422 2222 --> 16 499 9999 --> 58

Travel_Word_Problems/750453: How long is the distance of bird key park and Sarasota's Bay Front Park? 1 solutions Answer 456636 by Alan3354(30993)   on 2013-05-19 18:30:54 (Show Source): You can put this solution on YOUR website! How long is the distance of bird key park and Sarasota's Bay Front Park? -------------- That's not something that can be calculated. Look it up somewhere. --------------- PS "How long is the distance..." is gibberish

logarithm/750436: log(base 9) x = log (base 9) 4 + log (base 9) 5 1 solutions Answer 456631 by Alan3354(30993)   on 2013-05-19 18:27:04 (Show Source): You can put this solution on YOUR website! log(base 9) x = log (base 9) 4 + log (base 9) 5 ------------------- Any consistent base: log(x) = log(4) + log(5) Adding logs --> multiply log(x) = log(4*5) = log(20) x = 20

Distributive-associative-commutative-properties/750505: 4x+3y 1 solutions Answer 456629 by Alan3354(30993)   on 2013-05-19 18:24:02 (Show Source): You can put this solution on YOUR website! Do you have a question?

Geometry_Word_Problems/750414: a 15 foot ladder leaning against a building touches the wall 12 feet above the ground. How far from the building is the bottom of the ladder 1 solutions Answer 456616 by Alan3354(30993)   on 2013-05-19 18:05:42 (Show Source): You can put this solution on YOUR website! a 15 foot ladder leaning against a building touches the wall 12 feet above the ground. How far from the building is the bottom of the ladder ---------------- It's a 3-4-5 right triangle, times 3. --> 9 feet. ==============

Mixture_Word_Problems/750480: 32litres42mililitre = litre? 1 solutions Answer 456613 by Alan3354(30993)   on 2013-05-19 18:03:07 (Show Source): You can put this solution on YOUR website! 32litres42mililitre = litre? ---------------- It's not clear what you want to do.

Geometry_Word_Problems/750477: To funnel down a 6x6 square at a 70 degree angle 1 solutions Answer 456612 by Alan3354(30993)   on 2013-05-19 18:00:21 (Show Source): You can put this solution on YOUR website! To funnel down a 6x6 square at a 70 degree angle -------------- Do you have a question?

Age_Word_Problems/750489: Hi, I need help on how to set this problem up to get the answer Two times Antonio’s age plus three times Sarah’s age equals 34. Sarah’s age is five times the age of Antonio. How old is Sarah? Thanks 1 solutions Answer 456610 by Alan3354(30993)   on 2013-05-19 17:58:40 (Show Source): You can put this solution on YOUR website! Hi, I need help on how to set this problem up to get the answer Two times Antonio’s age plus three times Sarah’s age equals 34. Sarah’s age is five times the age of Antonio. How old is Sarah? --------------------- Write what it says. Two times Antonio’s age plus three times Sarah’s age equals 34. 2A + 3S = 34 ------ Sarah’s age is five times the age of Antonio. S = 5A ================= Was that hard?

Quadratic-relations-and-conic-sections/750473: Thank you so much. These are homework problems, and I am a straight-A student. I am not trying to be cheap, I just seriously don't understand it. I have tutoring tomorrow, and need to know how to do these by then. Thanks for your help. It is greatly appreciated! :) 1. The junior prom committee brought in $6300 through ticket sales last year. This year they had hoped to increase attendance by lowering the ticket price by $3. They ended up selling 48 more tickets for a total of $5970. a. What was the original price per ticket? b. How many tickets were sold at the lower price? 2. When Raj shined his flashlight on the wall at an angle, it made an ellipse with a vertical major axis of 34 inches and a horizontal minor axis of 18 inches. Let the center of the ellipse be the origin of a coordinate system. Find an equation for the edge of the ellipse. 1 solutions Answer 456597 by Alan3354(30993)   on 2013-05-19 17:34:04 (Show Source): You can put this solution on YOUR website! 1. The junior prom committee brought in $6300 through ticket sales last year. This year they had hoped to increase attendance by lowering the ticket price by $3. They ended up selling 48 more tickets for a total of $5970. a. What was the original price per ticket? h = # of tix at higher price p = higher price h*p = 6300 (h+48)*(p-3) = 5970 h = 6300/p (6300/p + 48)*(p-3) = 5970 (6300 + 48p)*(p-3) = 5970p (2100 + 16p)*(p-3) = 1990p 16p^2 + 2052p - 6300 = 1990p 8p^2 + 31p - 3150 = 0 Solved by pluggable solver: SOLVE quadratic equation (work shown, graph etc) Quadratic equation (in our case ) has the following solutons: For these solutions to exist, the discriminant should not be a negative number. First, we need to compute the discriminant : . Discriminant d=101761 is greater than zero. That means that there are two solutions: . Quadratic expression can be factored: Again, the answer is: 18, -21.875. Here's your graph: ========================== p = $18 (original price) ========================== b. How many tickets were sold at the lower price? Tix at $18 = 6300/18 = 350 350 + 48 = 398 at the lower price ================== 2. When Raj shined his flashlight on the wall at an angle, it made an ellipse with a vertical major axis of 34 inches and a horizontal minor axis of 18 inches. Let the center of the ellipse be the origin of a coordinate system. Find an equation for the edge of the ellipse. --------- 18/2 = 9 34/2 = 17 ------

Sequences-and-series/750467: Please help me Find the fractions equal to the given decimals 1. 0.82222... 1 solutions Answer 456588 by Alan3354(30993)   on 2013-05-19 17:00:54 (Show Source): You can put this solution on YOUR website! Find the fractions equal to the given decimals 0.82222... n = 0.8222... 10n = 8.2222... -n = -0.8222... ---------------- 9n = 7.4 n = 7.4/9 = 74/90 n = 37/45

logarithm/750469: how do you solve this 2 log (x + 4 ) -log (x+2 ) = 3 + log (x - 2 ) 10 10 10 should is start of with the quotient rule or bring all logs to one side first , take log (x-2) to the other side 1 solutions Answer 456587 by Alan3354(30993)   on 2013-05-19 16:56:07 (Show Source): You can put this solution on YOUR website! log(x^2 + 4) - log(x+2) = 3 + log(x - 2) log(x^2 + 4) - log(x+2) = log(1000) + log(x - 2) ---- (x^2+4)/(x+2) = 1000(x-2) x^2+4 = 1000(x^2-4) = 1000x^2 - 4000 999x^2 = 4004 x =~ 2.002 ---------------- Ignore the negative value of x

Linear-systems/750415: does 4x-3y=6 and 8x=6y+10 have one solution, no solution, or infinitley many solutions 1 solutions Answer 456559 by Alan3354(30993)   on 2013-05-19 14:11:28 (Show Source): You can put this solution on YOUR website! 4x-3y=6 8x=6y+10 --> 4x-3y=5 ----------- Parallel lines, no intersection --> no solution

Geometry_Word_Problems/750412: in a right triangle the length of the hypotenuse is 52 and the length of one leg is 48 whats the length of the other leg 1 solutions Answer 456557 by Alan3354(30993)   on 2013-05-19 13:58:28 (Show Source): You can put this solution on YOUR website! in a right triangle the length of the hypotenuse is 52 and the length of one leg is 48 whats the length of the other leg --------------

Rate-of-work-word-problems/750400: ok here is my question, "one hose can fill a child's pool in 24min. A larger hose can fill the pool in 12 min. If the two hoses are used together, how long will it take to fill the pool?" what I did and still got it wrong was 1/24+ 1/12 = 2/36 = 1/18 so i figured 18min but it cannot be possible if a single hose alone can fill it in 12 min 1 solutions Answer 456554 by Alan3354(30993)   on 2013-05-19 13:07:04 (Show Source): You can put this solution on YOUR website! "one hose can fill a child's pool in 24min. A larger hose can fill the pool in 12 min. If the two hoses are used together, how long will it take to fill the pool?" what I did and still got it wrong was 1/24+ 1/12 = 2/36 = 1/18 so i figured 18min but it cannot be possible if a single hose alone can fill it in 12 min ---------------- You did the right thing, but 1/24+ 1/12 = 2/36 = 1/18 is not right. ---- 1/24 + 1/12 = 1/24 + 2/24 = 3/24 = 1/8 --> 8 minutes

Linear_Equations_And_Systems_Word_Problems/750382: What is the decrease percentage from 15 to 10? 1 solutions Answer 456544 by Alan3354(30993)   on 2013-05-19 11:40:16 (Show Source): You can put this solution on YOUR website! What is the decrease percentage from 15 to 10? ------------ 100*(15 - 10)/15 = 100/3 % =~ 33%

Trigonometry-basics/749962: Find the exact value of csc(pi/8) 1 solutions Answer 456541 by Alan3354(30993)   on 2013-05-19 11:31:05 (Show Source): You can put this solution on YOUR website! csc(pi/8)=1/sin(pi/8)= ------------ csc^2 = = = = -----

test/750372: 1 solutions Answer 456540 by Alan3354(30993)   on 2013-05-19 11:17:10 (Show Source): You can put this solution on YOUR website!