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Alan3354 answered: 30973 problems
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Complex_Numbers/618690: The question asks to write the following term into a + ib form, where “i” is a complex number : I need to show steps but having trouble getting started. Can anyone help? Thanks. 1 solutions Answer 389032 by Alan3354(30993)   on 2012-06-07 08:58:11 (Show Source): You can put this solution on YOUR website! ----------- Multiply like any sum and difference. or 2 + 0i

test/618579: If sin theta = (1/2), find csc theta 1 solutions Answer 388992 by Alan3354(30993)   on 2012-06-06 20:53:07 (Show Source): You can put this solution on YOUR website! If sin theta = (1/2), find csc theta ------------- csc = 1/sin

Linear-equations/618592: Determine whether the given coordinate is a solution to the given equation. y=-6x +2; (2,10) 1 solutions Answer 388991 by Alan3354(30993)   on 2012-06-06 20:52:07 (Show Source): You can put this solution on YOUR website! Determine whether the given coordinate is a solution to the given equation. y=-6x +2; (2,10) -------------- Sub 2 for x & 10 for y. See if the 2 sides are equal.

real-numbers/618554: Trying to find the slope 1 solutions Answer 388987 by Alan3354(30993)   on 2012-06-06 20:10:35 (Show Source): You can put this solution on YOUR website! Trying to find the slope ------------ That's not an equation, no equal sign. --> no slope

Geometry_Word_Problems/618567: Using 3.14 (Pi) and rounding the answer to the nearest cubic inch. How many cubic inches of sand will be needed to fill a barrel 3 feet tall with a diameter of 18 inches? 1 solutions Answer 388986 by Alan3354(30993)   on 2012-06-06 20:09:19 (Show Source): You can put this solution on YOUR website! Using 3.14 (Pi) and rounding the answer to the nearest cubic inch. How many cubic inches of sand will be needed to fill a barrel 3 feet tall with a diameter of 18 inches? ----------- r = 9, h = 36 inches

Graphs/618529: Solve the system of equations by graphing. x-2y=-4 x+2y=8 Please show points, how to graph the points and the point at where they meet or intersect (if they do). 1 solutions Answer 388980 by Alan3354(30993)   on 2012-06-06 19:07:30 (Show Source): You can put this solution on YOUR website! It's 2 straight lines. x+y=4 Find 2 points. Pick values for x or y and find the other variable. Zero usually works well. Plot the 2 points. Draw a line thru them. ------------- Do the same for the other equation. Where they intersect is at the values of x & y that fit both equations. ------------- dl the FREE graph software at http://www.padowan.dk Use F6 to enter them as they are.

Graphs/618528: Solve the system of equations by graphing. x+y=4 y-x=4 Please show points, how to graph the points and the point at where they meet or intersect (if they do). 1 solutions Answer 388979 by Alan3354(30993)   on 2012-06-06 19:05:08 (Show Source): You can put this solution on YOUR website! Solve the system of equations by graphing. x+y=4 y-x=4 ---------- It's 2 straight lines. x+y=4 Find 2 points. Pick values for x or y and find the other variable. Zero usually works well. Plot the 2 points. Draw a line thru them. ------------- Do the same for the other equation. Where they intersect is at the values of x & y that fit both equations.

Polynomials-and-rational-expressions/618538: how do i get the GCF of 10x^2y^3z^4+5xyz^3 1 solutions Answer 388978 by Alan3354(30993)   on 2012-06-06 19:01:03 (Show Source): You can put this solution on YOUR website! how do i get the GCF of 10x^2y^3z^4+5xyz^3 ---------- The C in GCF is Common, meaning it's common to more than 1 expression. You have only 1 expression, so the GCF is 10x^2y^3z^4+5xyz^3, the expression itself.

Trigonometry-basics/618490: Which of the following. Is equivalent to 1-cos^2/cos^2? the answer is tan^2 but I don't know how that answer is reached. thanks 1 solutions Answer 388938 by Alan3354(30993)   on 2012-06-06 16:14:51 (Show Source): You can put this solution on YOUR website! ( 1-cos^2)/cos^2 = sin^2/cos^2 = tan^2

Trigonometry-basics/618479: sqrt(5+sqrt(24)) 1 solutions Answer 388937 by Alan3354(30993)   on 2012-06-06 16:13:47 (Show Source): You can put this solution on YOUR website! = =~ 3.14626

Linear-equations/618481: Help me solve this equation. The equation has to be solved (a)symbolically (b)graphically, and (c) numerically 4x+y=6 x-4=14 Please help, this has 23 diffrent steps and I am at a loss! 1 solutions Answer 388934 by Alan3354(30993)   on 2012-06-06 16:11:13 (Show Source): You can put this solution on YOUR website! 4x+y=6 x-4=14 --> x = 18 ---------- 4*18 + y = 6 y = -66 Not so many.

test/618458: 30% of air ia lost with each stroke of the piston, their are 32 liters of air how many liters of air will there be after 6 strokes 1 solutions Answer 388928 by Alan3354(30993)   on 2012-06-06 15:40:02 (Show Source): You can put this solution on YOUR website! 30% of air ia lost with each stroke of the piston, their are 32 liters of air how many liters of air will there be after 6 strokes ------------------- 70% remains after each stroke = 0.7 --> 32*0.7^6 = 3.764768 liters

logarithm/618452: Solve the equation for x ln(3x+1)=ln(2x-8) 1 solutions Answer 388927 by Alan3354(30993)   on 2012-06-06 15:34:16 (Show Source): You can put this solution on YOUR website! Solve the equation for x ln(3x+1)=ln(2x-8) ------------ It the logs are equal, then 3x+1 = 2x-8 x = -9 ---------- But, this give the log(-26) which does not exist. --> no solution

Linear-equations/618467: A point is located somewhere on the x-axis. What is the ordinate of the point -4... But the part I don't understand is this, "Can you determine the abscissa of the point from above! Why or why not? Plaese help! 1 solutions Answer 388926 by Alan3354(30993)   on 2012-06-06 15:28:13 (Show Source): You can put this solution on YOUR website! A point is located somewhere on the x-axis. What is the ordinate of the point -4... But the part I don't understand is this, "Can you determine the abscissa of the point from above! Why or why not? ---------------- -4 is not a point. -------------------------- The ordinate is the distance from the x-axis If a point is on the x-axis, its distance from it = 0. ------------- The abscissa is the distance from the y-axis. If the point is "somewhere on the x-axis" then the abscissa is not known.

Permutations/618468: what if i had a choice between 5 flavors of ice cream 3 toppings and with or without nuts i dont know how to solve that excatly 1 solutions Answer 388925 by Alan3354(30993)   on 2012-06-06 15:23:22 (Show Source): You can put this solution on YOUR website! what if i had a choice between 5 flavors of ice cream 3 toppings and with or without nuts i dont know how to solve that excatly ----------- Solve what? What's the question?

Equations/618466: Solve by Elimination method 5a+3b=5 -5a+b=15 Please help me solve these equations with the elimination method. 1 solutions Answer 388924 by Alan3354(30993)   on 2012-06-06 15:19:23 (Show Source): You can put this solution on YOUR website! Solve by Elimination method +5a+3b=5 -5a+b=15 ---------- Add

Linear-equations/618456: Find the slope of the line passing through the given pair of points.(6, 17) and (-17, 11) 1 solutions Answer 388923 by Alan3354(30993)   on 2012-06-06 15:15:03 (Show Source): You can put this solution on YOUR website! Find the slope of the line passing through the given pair of points.(6,17) and (-17,11) ------------ Slope m = diffy/diffx

testmodule/618393: Give polar coordinates for (-3,3), (-2,0), (-1,3^1/2) 1 solutions Answer 388849 by Alan3354(30993)   on 2012-06-06 10:45:27 (Show Source): You can put this solution on YOUR website! Give polar coordinates for (-3,3), (-2,0), (-1,3^1/2) -------------- Angle = arctan(y/x) in the appropriate quadrant --------- (-3,3) --> Q2 Angle = arctan(-1) in Q2 Angle = 135 degs or 3pi/4 radians ---------- Do the others the same way

Graphs/618374: Slope = 1/3 y-intercept = -3 1 solutions Answer 388838 by Alan3354(30993)   on 2012-06-06 09:59:08 (Show Source): You can put this solution on YOUR website! Slope = 1/3 y-intercept = -3 ----------------- Hint: y = mx + b

Inequalities/618377: Please solve & show work for: y>-3 x<2 line under < sign Name a point for y>-3 Name a point for x< 2 with line under < Name a point for both. Please help. I paid $5.00 thru the math tutor website & never receive an answer. this is my last problem to do. Thank you Lynnette Custer lynnbuz@yahoo.com 1 solutions Answer 388837 by Alan3354(30993)   on 2012-06-06 09:58:14 (Show Source): You can put this solution on YOUR website! y>-3 x<2 line under < sign that's x <= 2, less than or equal -------------- Name a point for y>-3 y = -2, y = -1, y = 6, etc. Any number greater than -3 ---------------- Name a point for x<= 2 x = 2, x = 1, x = -7 etc 2 is allowed, since it's less than or equal. ----------------- Name a point for both. If you mean an (x,y) point on the plane, (-2,1) or (0,0), etc

Numeric_Fractions/618339: I'm sorry. I did not find, that I have raised this issue. Kharazmi said that Arabs in algebra history, but is not. He was a Parsi. But since that time, Iran was occupied by Arabs, Iranians need to save and expand knowledge of Arabic to expand their knowledge, because the Arabs of every book published in Persian, which was burned. Khwarizmi and Abu Ali Sina made ​​it so. But they were not Arabs, please do a little research to find out Khwarizmi was Persian, not Arab. Algebra History also change the text. Thanks 1 solutions Answer 388832 by Alan3354(30993)   on 2012-06-06 09:00:28 (Show Source): You can put this solution on YOUR website! You're welcome.

test/618343: Algebra 1 solutions Answer 388826 by Alan3354(30993)   on 2012-06-06 08:37:57 (Show Source): You can put this solution on YOUR website! Algebra ------- Yes

real-numbers/618322: what are the problems involving real numbers? 1 solutions Answer 388825 by Alan3354(30993)   on 2012-06-06 08:37:17 (Show Source): You can put this solution on YOUR website! what are the problems involving real numbers? -------------- There are too many of them.

�t�e�s�t/618217: A car takes 10s to go from v=0 m/s to v= 25 m/s at constant acceleration. If you wish to find the distance traveled using the equation d=1/2atsquared what value should you use for a? 1 solutions Answer 388768 by Alan3354(30993)   on 2012-06-05 20:38:51 (Show Source): You can put this solution on YOUR website! A car takes 10s to go from v=0 m/s to v= 25 m/s at constant acceleration. If you wish to find the distance traveled using the equation d=1/2atsquared what value should you use for a? -------- a = v/t = 25/10 a = 2.5 m/sec/sec ---- s = at^2/2 = 2.5*10^2/2 s = 125 meters

Radicals/618228: Please check my work Solve: √(n + 6)-√n=√6 √(n+6)= √6+√n N+6=6+n so is this a NO SOLUTION question as 0 = 0? Thank you in advance for your help 1 solutions Answer 388767 by Alan3354(30993)   on 2012-06-05 20:36:49 (Show Source): You can put this solution on YOUR website! Solve: √(n + 6)-√n=√6 √(n+6)= √6+√n N+6=6+n************ It's n = 0

Percentage-and-ratio-word-problems/618232: the quotient of a number divided by the next consecutive integer 1 solutions Answer 388766 by Alan3354(30993)   on 2012-06-05 20:33:52 (Show Source): You can put this solution on YOUR website! the quotient of a number divided by the next consecutive integer --------- = n/(n+1)

Geometry_Word_Problems/618196: The total length of fencing needed to enclose a rectangular area 46ft by 34 is 1 solutions Answer 388756 by Alan3354(30993)   on 2012-06-05 19:11:22 (Show Source): You can put this solution on YOUR website! The total length of fencing needed to enclose a rectangular area 46ft by 34 is ----------- Perimeter = 2W + 2L

percentage/618133: solve by the elimination method. 3x+4y=4 6x+8y=8 what is the solution of the system? 1 solutions Answer 388754 by Alan3354(30993)   on 2012-06-05 19:00:57 (Show Source): You can put this solution on YOUR website! solve by the elimination method. 3x+4y=4 6x+8y=8 what is the solution of the system? ------------ The 2nd eqn is 2x the 1st.

Miscellaneous_Word_Problems/618168: Jane is filling her gas tank. After 10 seconds her gas tank 5 gallons in it. After 25 seconds her gas tank has 9.5 gallons in it. Suppose the amount of gas in the tank depends lineraly on time. Write the equation describing the gallons of gas in the tank g after s seconds How much gas will be in the tank after 50 seconds? What is the y-intercept of the equation you found? What does the number mean in this problem? 1 solutions Answer 388752 by Alan3354(30993)   on 2012-06-05 18:59:29 (Show Source): You can put this solution on YOUR website! Duplicate

percentage/618134: solve the following systems of equations. x+4y=8(1) x=3-4y(2) What is the solution of the method? 1 solutions Answer 388732 by Alan3354(30993)   on 2012-06-05 16:57:47 (Show Source): You can put this solution on YOUR website! solve the following systems of equations. x+4y=8(1) x=3-4y(2) --> x+4y=3 ---------- x+4y=8 x+4y=3 -------- Subtract 0 = 5 --> inconsistent, no solution

test/618152: Use log4^3=0.7925 and log4^4=1 to approximate the value of the expression log4^384 Show all work please and explain if you could 1 solutions Answer 388730 by Alan3354(30993)   on 2012-06-05 16:54:06 (Show Source): You can put this solution on YOUR website! Use log4^3=0.7925 and log4^4=1 to approximate the value of the expression log4^384 -------------- You mean log base 4, not exponents. ^ is exponentiation. ---- 384 = 3*128 = 3*4^3*4^(1/2) log(384) = log(3) + 3*log(4) + (1/2)*log(4) with any consistent base = 0.7925 + 3 + 0.5 = 4.2925