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Alan3354 answered: 30973 problems
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logarithm/687548: ln5+lnx^4=405 1 solutions Answer 425195 by Alan3354(30993)   on 2012-11-30 11:28:00 (Show Source): You can put this solution on YOUR website! ln5+lnx^4=405 ---------------- ln(5x^4) = 405 x=~ 6.274423E43

Trigonometry-basics/687537: how you graph x-2y=0 y=2x-3 1 solutions Answer 425193 by Alan3354(30993)   on 2012-11-30 11:23:00 (Show Source): You can put this solution on YOUR website! how you graph x-2y=0 y=2x-3 --------------- They're straight lines, so you need 2 points. Pick values for x and find y. Plot the points. Draw a line thru them.

�t�e�s�t/687550: Find the midpoint of the line segment joining the points p1 and p2 P1=(2,1) p2=(-3,0) 1 solutions Answer 425191 by Alan3354(30993)   on 2012-11-30 11:21:41 (Show Source): You can put this solution on YOUR website! Find the midpoint of the line segment joining the points p1 and p2 P1=(2,1) p2=(-3,0) -------------- Find the average of x & y separately M = (avg x, avg y)

Trigonometry-basics/687544: i need help with this proble y=2x-2 y=-x+4 1 solutions Answer 425190 by Alan3354(30993)   on 2012-11-30 11:19:31 (Show Source): You can put this solution on YOUR website! i need help with this proble y=2x-2 y=-x+4 ------------- Both RH sides = y, so 2x-2 = -x+4

Linear_Algebra/685626: i need the steps of how to solve the following equation. 4x-5y=28 5x+6Y=14 1 solutions Answer 425162 by Alan3354(30993)   on 2012-11-30 08:15:54 (Show Source): You can put this solution on YOUR website! 4x-5y=28 5x+6Y=14 ================ -5(4x -5y =28) 4(5x +6y =14) -20x +25y =-140 20x +24y = 56 ------------------ Add 49y = -84 y = -12/7 ================ 4x - 5y = 28 4x + 60/7 = 28 x + 15/7 = 7 x = 34/7

Numbers_Word_Problems/687467: The sum of 2 consecutive integers is 1, 105. what are the two integers? 1 solutions Answer 425160 by Alan3354(30993)   on 2012-11-30 08:10:21 (Show Source): You can put this solution on YOUR website! The sum of 2 consecutive integers is 1, 105. what are the two integers? ------------ 1105/2 = 552.5 --> 552 & 553

Polynomials-and-rational-expressions/687282: factoring 64x^3 -1 1 solutions Answer 425109 by Alan3354(30993)   on 2012-11-29 20:30:30 (Show Source): You can put this solution on YOUR website! factoring 64x^3 -1 ------------- It's a difference of 2 cubes.

Trigonometry-basics/687310: Veronica places a ladder against the wall. Find the angle that the ladder makes with the wall. The right triangle adjacent is 28 m? can you please explain me this question? thanks in advance 1 solutions Answer 425107 by Alan3354(30993)   on 2012-11-29 20:28:16 (Show Source): You can put this solution on YOUR website! Veronica places a ladder against the wall. Find the angle that the ladder makes with the wall. The right triangle adjacent is 28 m? can you please explain me this question? ---------------------- I can't explain it.

logarithm/687295: I need help solving this I have tried it for about 20 mins now! Log (3x-1+log2=log4+log(x+2)) 1 solutions Answer 425104 by Alan3354(30993)   on 2012-11-29 20:08:17 (Show Source): You can put this solution on YOUR website! Log (3x-1+log2=log4+log(x+2) The parentheses are not right. If you mean: Log(3x-1) + log(2) = log(4)+log(x+2) log(2*(3x-1)) = log(4*(x+2)) 2*(3x-1) = 4*(x+2) 6x-2 = 4x+8 x = 5

Coordinate-system/687292: what is the x- intercept and y-intercept of the equation 6x+1/3y=1/3...i have (2,0) for the x-int. but cant seem to figure out the y-int. 1 solutions Answer 425101 by Alan3354(30993)   on 2012-11-29 19:58:38 (Show Source): You can put this solution on YOUR website! what is the x- intercept and y-intercept of the equation 6x+1/3y=1/3 --------------- 6x+1/3y=1/3 At the x-int y = 0 6x = 1/3 --> x = 1/18 --> (1/18,0) --------------- At the y-int x = 0 (1/3)y = 1/3 --> y = 1 --> (0,1)

Equations/687185: literal equations and dimension analysis. d= rt, for r 6w-y=2z, for 2 9s-5g= -4u, for s 1 solutions Answer 425085 by Alan3354(30993)   on 2012-11-29 18:19:12 (Show Source): You can put this solution on YOUR website! literal equations and dimension analysis. d= rt, for r Give it a try. ----------------- 6w-y=2z, for 2 Divide both sides by z. ------------------ 9s-5g= -4u, for s Add 5g Divide by 9

test/687203: the perimeter of a triangle is 48 centimeters. If the ratio of its length to its width is 11:4, Find the dimensions of the rectangle. 1 solutions Answer 425081 by Alan3354(30993)   on 2012-11-29 18:13:38 (Show Source): You can put this solution on YOUR website! the perimeter of a triangle is 48 centimeters. If the ratio of its length to its width is 11:4, Find the dimensions of the rectangle. ------------------ How many sides does this triangle/rectangle have?

expressions/687210: Can you help me to simplify: 5/4+2/x? 1 solutions Answer 425076 by Alan3354(30993)   on 2012-11-29 18:07:06 (Show Source): You can put this solution on YOUR website! Can you help me to simplify: 5/4+2/x? -------------- Find a common denominator to add them. The product of the DEN's always works

Equations/687208: how would I solve 2x=3x-6? 1 solutions Answer 425073 by Alan3354(30993)   on 2012-11-29 18:02:27 (Show Source): You can put this solution on YOUR website! how would I solve 2x=3x-6? --------- Step 1, get all the x terms on one side of the equal sign.

test/687206: 3x^5y^4/xy^2 1 solutions Answer 425071 by Alan3354(30993)   on 2012-11-29 17:59:42 (Show Source): You can put this solution on YOUR website! 3x^5y^4/xy^2 ------------ Cancel any terms that are in the NUM and the DEN eg, x

Polynomials-and-rational-expressions/687205: what is 15y3+6y2+3y divided 3y when you simplify 1 solutions Answer 425070 by Alan3354(30993)   on 2012-11-29 17:58:36 (Show Source): You can put this solution on YOUR website! what is 15y3+6y2+3y divided 3y when you simplify -----------

Volume/687190: what would be the volume of a cone with a height of 10ft and radius of the base is 3ft 1 solutions Answer 425069 by Alan3354(30993)   on 2012-11-29 17:55:57 (Show Source): You can put this solution on YOUR website! what would be the volume of a cone with a height of 10ft and radius of the base is 3ft -----------

expressions/687199: find the x and y intercepts of 2x+4y = -8 1 solutions Answer 425068 by Alan3354(30993)   on 2012-11-29 17:54:24 (Show Source): You can put this solution on YOUR website! find the x and y intercepts of 2x+4y = -8 --------- At the x-int, y = 0 At the y-int, x = 0

Matrices-and-determiminant/687068: Solve the problem using matrices. A chemist has prepared two acid solutions, one of which is 6% acid by volume, another 10% acid. How many cubic centimeters of each should the chemist mix together to obtain 50 cm3 of a solution that is acid. Answers: No solution 23 cm3 of 6%; 27 cm3 of 10% 50 cm3 of 6%; 50 cm3 of 10% 4.08 cm3 of 6%; 45.92 cm3 of 10% I think it is no solution, can someone show me all of the steps and the answer so I know how to do it? thank you 1 solutions Answer 425043 by Alan3354(30993)   on 2012-11-29 16:16:45 (Show Source): You can put this solution on YOUR website! Solve the problem using matrices. A chemist has prepared two acid solutions, one of which is 6% acid by volume, another 10% acid. How many cubic centimeters of each should the chemist mix together to obtain 50 cm3 of a solution that is acid. ------------- Any mix of the 2 will be acid, between 6% and 10%. ----- The 2nd choice is 100 cc, tho, not 50.

Numbers_Word_Problems/687058: 7 odd numbers their sumation is equal to 40 1 solutions Answer 425027 by Alan3354(30993)   on 2012-11-29 15:32:24 (Show Source): You can put this solution on YOUR website! 7 odd numbers their sumation is equal to 40 -------------- An odd number of odd numbers is an odd number. Can't be 40.

Travel_Word_Problems/687066: If Paul is rollerblading 3 miles per hour, how long will it take him to get 3 miles? 1 solutions Answer 425026 by Alan3354(30993)   on 2012-11-29 15:30:25 (Show Source): You can put this solution on YOUR website! If Paul is rollerblading 3 miles per hour, how long will it take him to get 3 miles? ------------ 3 MILES PER HOUR means - in an hour, he goes 3 miles.

Rational-functions/687053: I need to complete a table of values and graph the following f(x)=4/x^2 1 solutions Answer 425023 by Alan3354(30993)   on 2012-11-29 15:27:13 (Show Source): You can put this solution on YOUR website! I need to complete a table of values and graph the following f(x)=4/x^2 ------------ Pick values for x (not zero) and find f(x) Plot the points. Draw a curve thru them.

Graphs/686991: how do you graph x+y=5? 1 solutions Answer 424975 by Alan3354(30993)   on 2012-11-29 11:09:01 (Show Source): You can put this solution on YOUR website! how do you graph x+y=5? ------------ Solve for x or y y = -x + 5 Pick 2 (or more) values for and find y. Plot the 2 (at least) points. Draw a line thru them.

Expressions-with-variables/686957: 5x + y = 7 3y = 21 - 15x 1 solutions Answer 424972 by Alan3354(30993)   on 2012-11-29 11:01:00 (Show Source): You can put this solution on YOUR website! 5x + y = 7 3y = 21 - 15x ------------- This is the same eqn twice --> dependent, infinite # of solutions, no unique solution.

Expressions-with-variables/686965: (x/3) = (y/3) = 0 x-y = 8 1 solutions Answer 424969 by Alan3354(30993)   on 2012-11-29 10:56:04 (Show Source): You can put this solution on YOUR website! (x/3) = (y/3) = 0 ------------- Too many equal signs.

Travel_Word_Problems/686973: if a vehicle averages 28mph over 500 meters what was its top speed from a standing start. 1 solutions Answer 424962 by Alan3354(30993)   on 2012-11-29 10:36:05 (Show Source): You can put this solution on YOUR website! if a vehicle averages 28mph over 500 meters what was its top speed from a standing start. ---------------- If it starts at 0 and averages 28 mi/hr with uniform acceleration, the end speed is 56 mi/hr, regardless of the distance.

Travel_Word_Problems/686930: starting at 0km/h ending at top speed of 5km/h how far would I travel in 4 seconds 1 solutions Answer 424959 by Alan3354(30993)   on 2012-11-29 10:24:26 (Show Source): You can put this solution on YOUR website! starting at 0km/h ending at top speed of 5km/h how far would I travel in 4 seconds ------------ If you mean you accelerate from 0 to 5 km/hr in 4 seconds, then -- 5 km/hr = 25/18 meters/sec accel = 5/4 = 25/72 m/sec/sec ---- s = at^2/2 = (25/72)*4^2/2 meters s = 50/9 meters

Systems-of-equations/686736: elimination using addition and subtraction, 5x+2y=7, and -2x+2y=-14 1 solutions Answer 424884 by Alan3354(30993)   on 2012-11-28 20:41:38 (Show Source): You can put this solution on YOUR website! elimination using addition and subtraction, 5x+2y=7, and -2x+2y=-14 ---------- 5x+ 2y =7 -2x+2y=-14 ------------- Subtract

Numeric_Fractions/686742: (3/4 - 2/3)+(1/2+1/3) I do not remember what the parenthesis mean divide, multiply, subtract? PLease can you provide me with a detailed (really detailed) step by step explanation of how to do this equation? I am taking the compass entrance test. Thank you 1 solutions Answer 424883 by Alan3354(30993)   on 2012-11-28 20:40:11 (Show Source): You can put this solution on YOUR website! (3/4 - 2/3)+(1/2+1/3) I do not remember what the parenthesis mean divide, multiply, subtract? PLease can you provide me with a detailed (really detailed) step by step explanation of how to do this equation? I am taking the compass entrance test. --------------------- What equation? Equations have equal signs: equal, equate, equation.

Geometry_Word_Problems/686737: Hey can anyone help me with this If the length of two sides of a triangle are 2 and 5, the length of the third side could be A). 1 B). 2 C). 6 D). 7 1 solutions Answer 424881 by Alan3354(30993)   on 2012-11-28 20:38:54 (Show Source): You can put this solution on YOUR website! Hey can anyone help me with this If the length of two sides of a triangle are 2 and 5, the length of the third side could be A). 1 B). 2 C). 6 D). 7 -------------- Why can't it be any of them?

Percentage-and-ratio-word-problems/686740: what is 5% of 224 1 solutions Answer 424880 by Alan3354(30993)   on 2012-11-28 20:38:08 (Show Source): You can put this solution on YOUR website! what is 5% of 224 ----- = 0.05*224