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Alan3354 answered: 31493 problems
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Polynomials-and-rational-expressions/467785: How do you evaluate the polynomial -2x^3-3x+2 for x=-2? How do you factor a polynomial? 1 solutions Answer 321027 by Alan3354(31514)   on 2011-07-06 22:40:19 (Show Source): You can put this solution on YOUR website! How do you evaluate the polynomial -2x^3-3x+2 for x=-2? Sub -2 for x f(-2) = -2(-2)^3 - 3(-2) + 2 = 16 + 6 + 2 = 24 ------- How do you factor a polynomial? The methods vary with the degree and other things. There's no short answer.

logarithm/467825: Can someone please help with the questions I have submitted I am truly working on them myself also I'm not having the tutors doing all my work but someone just keep submitting my answers blank I am trying and glad for your services and help Thanks to the tutors that has help me thus far. 1 solutions Answer 321026 by Alan3354(31514)   on 2011-07-06 22:35:14 (Show Source): You can put this solution on YOUR website! Some juveniles are submitting "answers." You'll have to post the questions again. Since they're only 12, they can't stay up too late.

logarithm/467805: Rewrite the following as a logarithmic equation: b small y=x 1 solutions Answer 321004 by Alan3354(31514)   on 2011-07-06 21:26:49 (Show Source): You can put this solution on YOUR website!

Percentage-and-ratio-word-problems/467774: in a theatre, the ratio of adults to childeren 11 to 8. if there are 152 people in the theatre, how many childeren are there? 1 solutions Answer 320997 by Alan3354(31514)   on 2011-07-06 21:25:32 (Show Source): You can put this solution on YOUR website! 11+8 = 19 152/19 = 8 --> 11*8 = 88 adults 8*8 = 64 children

logarithm/467729: find the following expression as a single logarithm: log x + log 7 - log y 1 solutions Answer 320978 by Alan3354(31514)   on 2011-07-06 20:22:27 (Show Source): You can put this solution on YOUR website! log x + log 7 - log y = log(7x/y)

Quadratic_Equations/467751: (2X=5)^2 = -4 1 solutions Answer 320974 by Alan3354(31514)   on 2011-07-06 20:10:33 (Show Source): You can put this solution on YOUR website! Too many equal signs.

Exponential-and-logarithmic-functions/467765: how do i find 5 ^ SQRT OF 3 USING A SCINTIFIC CALCULATOR' 1 solutions Answer 320973 by Alan3354(31514)   on 2011-07-06 20:09:54 (Show Source): You can put this solution on YOUR website! Find sqrt(3) Raise 5 to that.

logarithm/467734: Is this the correct answer find the value of x for: log base 5 125=x and the answer is x=5 1 solutions Answer 320972 by Alan3354(31514)   on 2011-07-06 20:09:13 (Show Source): You can put this solution on YOUR website! x is the exponent.

Angles/467754: Hello I need help with a question. The directions are use an algebraic equation to find the measure of each angle that is represented in terms of x. 12x-3degrees 10x+15degrees the lines are parallel Thank you 1 solutions Answer 320971 by Alan3354(31514)   on 2011-07-06 20:06:52 (Show Source): You can put this solution on YOUR website! The angles are in relation to what? What lines?

Inverses/467756: how can I learn algebra in a short time.? how can I learn algebra in a short time 1 solutions Answer 320970 by Alan3354(31514)   on 2011-07-06 20:05:46 (Show Source): You can put this solution on YOUR website! Start soon.

Complex_Numbers/467772: add the complex expressions, then simplify. (1 - 3.5i) + (3.6 + 6.5i) 1 solutions Answer 320968 by Alan3354(31514)   on 2011-07-06 20:03:50 (Show Source): You can put this solution on YOUR website! 1 + 3.6 = 4.6 -3.5 + 6.5 = 3 --> 4.6 + 3i

Equations/467703: the product of two consecutive even integers is 168 1 solutions Answer 320930 by Alan3354(31514)   on 2011-07-06 16:43:26 (Show Source): You can put this solution on YOUR website! = almost 13, the center --> 12 & 14

Linear-equations/467706: I need help on how to write an equation of the line w/ slope of 2/3 that passes through (4,-5). 1 solutions Answer 320928 by Alan3354(31514)   on 2011-07-06 16:37:58 (Show Source): You can put this solution on YOUR website! y = mx + b Use the point. Sub x & y to find b. -5 = (2/3)*4 + b -5 = 8/3 + b b = -23/3 ---------- y = (2/3)x - 23/3 Is that sufficient?

test/467667: 2x-14 is what an equation or inequality ? 1 solutions Answer 320920 by Alan3354(31514)   on 2011-07-06 16:20:33 (Show Source): You can put this solution on YOUR website! It's neither. An equation has an equal sign. An inequality has one of those signs. 2x-14 is a binomial.

Trigonometry-basics/467680: (cot)/(csc-1)=(csc+1)/(cot) please prove this for me :) 1 solutions Answer 320918 by Alan3354(31514)   on 2011-07-06 16:12:45 (Show Source): You can put this solution on YOUR website! (cot)/(csc-1)=(csc+1)/(cot) ------------- Change all to sines and cosines (cos/sin)/(1/sin - 1) = (1/sin + 1)/(cos/sin) (cos/sin)/((1 - sin)/sin) = ((1 + sin)/sin)/(cos/sin) cos/(1-sin) = (1 + sin)/cos Cross multiply cos^2 = 1 - sin^2 Pythagorean identity --------------- Always change to sines and cosines, unless you're familiar with other identities.

Length-and-distance/467678: I am in need of help please I have a question that says 0.25mi to ft. using dimensional analysis to convert. thank you 1 solutions Answer 320915 by Alan3354(31514)   on 2011-07-06 16:07:18 (Show Source): You can put this solution on YOUR website! 1 mile = 5280 feet 0.25*5280 = 1320 feet

Volume/467689: a circle with a diameter of 2.5" would be how many feet wide? 1 solutions Answer 320913 by Alan3354(31514)   on 2011-07-06 16:04:42 (Show Source): You can put this solution on YOUR website! If 2.5" is 2.5 inches, it's 2.5/12 feet =~ 0.208 feet

Linear-equations/467682: 2x+y=6 5x+4y=0 im not sure how to solve these questions among others 1 solutions Answer 320912 by Alan3354(31514)   on 2011-07-06 16:03:36 (Show Source): You can put this solution on YOUR website! 2x+y=6 5x+4y=0 ----------- There's more than one method. You can use substitution: 2x+y=6 --> y = 6-2x Sub for y in the 2nd eqn 5x + 4(6-2x) = 0 Solve for x. Then sub for x into either eqn and find y. --------------- Elimination works, too: 2x+y=6 times 4 --> 8x+4y = 24 ----------- 8x+4y = 24 5x+4y = 0 ----------- Subtract 3x = 24 x = 8 Then sub and find y.

Linear-equations/467687: How do I write the equation of the line w/ slope 2/3 that passes through (4,-5)? I need to give the answer in slope intercept form. 1 solutions Answer 320910 by Alan3354(31514)   on 2011-07-06 15:59:24 (Show Source): You can put this solution on YOUR website! Use y = mx + b and the given point to find b. b is the y-intercept. You know the slope, it's 2/3

Quadratic_Equations/467661: x^2+2x=3 Solve by graphing 1 solutions Answer 320897 by Alan3354(31514)   on 2011-07-06 14:35:51 (Show Source): You can put this solution on YOUR website! dl the FREE graph software at http://www.padowan.dk -------------- x^2+2x=3 x^2 + 2x - 3 Use Insert

Linear-equations/467664: How do I write the equation of the line w/ slope 2/3 that passes through (4,-5)? I need to give the answer in slope intercept form. 1 solutions Answer 320895 by Alan3354(31514)   on 2011-07-06 14:34:07 (Show Source): You can put this solution on YOUR website! Use y = mx + b and the point to find b.

Equations/467638: find three consecutive even integers whose sum is 114 1 solutions Answer 320878 by Alan3354(31514)   on 2011-07-06 13:42:01 (Show Source): You can put this solution on YOUR website! 114/3 = 38, the middle number ----------- You can do it like this: (n-2) + n + (n+2) = 114 3n = 114, etc

Square-cubic-other-roots/467630: Simplify; express in terms of i. Please show all work. √-36 1 solutions Answer 320877 by Alan3354(31514)   on 2011-07-06 13:31:55 (Show Source): You can put this solution on YOUR website! = -6i, 6i

Reduction-of-unit-multipliers/467578: 1. what is 2/3=m/42 2. 6.3=0.9y y= 3. 6= z/5.9 z= 1 solutions Answer 320851 by Alan3354(31514)   on 2011-07-06 11:37:33 (Show Source): You can put this solution on YOUR website! 1. what is 2/3=m/42 It's an equation in m. ------------------ 2. 6.3=0.9y y = 6.3/0.9 You can divide that easily and get y = 7 Sometimes it's better to eliminate fractions first. 6.3=0.9y Multiply by 10 63 = 9y y = 63/9 y = 7 -------------- 3. 6= z/5.9 Multiply by 5.9 z = 6*5.9 z = 35.4

Radicals/467589: Simplify by taking roots of the numerator and the denominator 3v 1000/729 the v is represents a square root and the 3 is suppose to be in the indentation outside the square root, not directly to the side. this is a fraction inside the square root. 1 solutions Answer 320848 by Alan3354(31514)   on 2011-07-06 11:28:30 (Show Source): You can put this solution on YOUR website! If that's what you meant. ---------------- The other tutor slipped up, did the square root of the numerator. She could be in a different time zone and totally inebriated by now, we don't know.

Radicals/467591: solve 3V 2x+7 +2=8 the v is suppose to be a square root and the 3 is suppose to be in the indentation of it, not directly to the side. The 2x and the 7 are the only numbers inside the square root. 1 solutions Answer 320847 by Alan3354(31514)   on 2011-07-06 11:26:47 (Show Source): You can put this solution on YOUR website! Then it's a cube root, not a square root. Cube both sides 2x + 7 = 216 2x = 209 x = 209/2

Exponential-and-logarithmic-functions/467590: Can someone please help with this Use the change of base formula to write two equations that are equivalent to y = log[2]x 1 solutions Answer 320845 by Alan3354(31514)   on 2011-07-06 11:23:51 (Show Source): You can put this solution on YOUR website! That is the base change formula.

Linear-equations/467587: Please help me find the slope intercept form of the line that passes through the given points: (3, -3) (-2, 5) 1 solutions Answer 320840 by Alan3354(31514)   on 2011-07-06 11:06:25 (Show Source): You can put this solution on YOUR website! Step 1, find the slope.

Polynomials-and-rational-expressions/467575: 12y^2+4y+15y+5 1 solutions Answer 320839 by Alan3354(31514)   on 2011-07-06 11:05:03 (Show Source): You can put this solution on YOUR website! Do you have a question?

Angles/467574: find X if angles of measures (X+10)° and (X-30)° are complementry to each other 1 solutions Answer 320830 by Alan3354(31514)   on 2011-07-06 10:27:53 (Show Source): You can put this solution on YOUR website! then (x+10) + (x+30) = 90 2x + 40 = 90 2x = 50 x = 25

Numbers_Word_Problems/467567: the numbers 2 and 3 are prime numbers and their sum 5 is also a prime number, fine five more such pairs of prime numbers 1 solutions Answer 320829 by Alan3354(31514)   on 2011-07-06 10:13:59 (Show Source): You can put this solution on YOUR website! 2 + 11 = 13 2 + 17 = 19 2 + 29 = 31 2 + 41 = 43 2 + 59 = 61 2 + 101 = 103 ------------- Notice that all have a 2, the only even prime number. Adding 2 odd numbers would give an even number, which could not be prime.