Algebra ->  Tutoring on algebra.com -> See tutors' answers!      Log On

 Tutoring Home For Students Tools for Tutors Our Tutors Register Recently Solved
 By Tutor
| By Problem Number |

Tutor:

# Recent problems solved by 'sofiyac'

Jump to solutions: 0..29 , 30..59 , 60..89 , 90..119 , 120..149 , 150..179 , 180..209 , 210..239 , 240..269 , 270..299 , 300..329 , 330..359 , 360..389 , 390..419 , 420..449 , 450..479 , 480..509 , 510..539 , 540..569 , 570..599 , 600..629 , 630..659 , 660..689 , 690..719, >>Next

 Graphs/470564: Graph the function below by using its exponential form. f(x)=log1.2^x 1 solutions Answer 322830 by sofiyac(695)   on 2011-07-15 13:06:38 (Show Source): You can put this solution on YOUR website!we can't graph using logs on this website
 Graphs/470559: Sketch the graph of the function log2(-x+3). 1 solutions Answer 322829 by sofiyac(695)   on 2011-07-15 13:04:33 (Show Source): You can put this solution on YOUR website!we cant graph logs on here, use a graphing calculator
 Coordinate-system/470551: (1)Sketch both lines on the same coordinate plane. State the point at which the two lines intersect: x=5,y=-2; x=-2,y=1; x=3,y=4; x=4-4,y=-1 1 solutions Answer 322828 by sofiyac(695)   on 2011-07-15 13:03:02 (Show Source): You can put this solution on YOUR website!The graphing calculator doesn't let us graph x=, only y= y=-2 y=1 y=4 y=-1 The ones with x would look the same only they will all be VERTICAL and drawn on X axis, not Y axis
 Rectangles/470611: if ABCD is the a rectangle with two sides 4 m in length and other two sides 3m in lenght, WHAT is the area of the rectangle 1 solutions Answer 322826 by sofiyac(695)   on 2011-07-15 12:59:38 (Show Source): You can put this solution on YOUR website!4*3=12
 test/470642: Breaking the algebra down to exactly find how it became the answer step bye step I have a better understanding when its simple the much longer one are the issue really can use some help Erich1 solutions Answer 322825 by sofiyac(695)   on 2011-07-15 12:58:07 (Show Source): You can put this solution on YOUR website!you didn't post a problem with this one
 Exponents/470648: what is 13m+3n-3m+7n ?1 solutions Answer 322824 by sofiyac(695)   on 2011-07-15 12:57:13 (Show Source): You can put this solution on YOUR website!10m+10n
 Square-cubic-other-roots/470661: How do I rewrite this with rational exponents? ^5√xy^4z 1 solutions Answer 322823 by sofiyac(695)   on 2011-07-15 12:56:22 (Show Source): You can put this solution on YOUR website!its not copied right, make it look exactly like in the book, ie otherwise we don't understand the problem. Thanks
 Travel_Word_Problems/470664: word problem:A car traveled 126 miles in the same amount of time that a van traveled 99 miles.If the car went 15 miles per hour faster than the van, how fast did each vehicle travel?1 solutions Answer 322822 by sofiyac(695)   on 2011-07-15 12:53:58 (Show Source): You can put this solution on YOUR website!van x miles per hour car x+15 miles per hour time=distance/rate cross multiply divide both sides by 27 so vans speed is 55 mph then car's speed is 55+15=70 mph
 Equations/470665: how to solve this equation 1/2t+5/12=5/6?1 solutions Answer 322820 by sofiyac(695)   on 2011-07-15 12:49:43 (Show Source): You can put this solution on YOUR website!is t on top or bottom? you wrote it as on the bottom
 Linear-equations/470651: 6x + 4= -(x - 18)1 solutions Answer 322813 by sofiyac(695)   on 2011-07-15 11:37:38 (Show Source): You can put this solution on YOUR website!6x + 4= -(x - 18) 6x + 4= -x + 18 7x = 14 x=2
 Linear-systems/470644: what is 6x+4y+5z-4x+2z-7y= ?1 solutions Answer 322811 by sofiyac(695)   on 2011-07-15 11:02:02 (Show Source): You can put this solution on YOUR website!2x-3y+7z
 test/470523: Essay; show all work. Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001718x4 + 0.087326x3 – 1.3367x2 + 12.46x + 3.914. When a unicorn is 2.5 years old, what is its age in human equivalent years? What about when it is 12 years old? 1 solutions Answer 322810 by sofiyac(695)   on 2011-07-15 11:01:12 (Show Source): You can put this solution on YOUR website! plug in x=2.5 Then for the next one do the same thing, but instead of 2.5 plug in 12
 Number-Line/470539: x>=7 when x represent 81 solutions Answer 322803 by sofiyac(695)   on 2011-07-15 10:05:16 (Show Source): You can put this solution on YOUR website!then 8>=7 so this expression holds true
 Probability-and-statistics/470561: if there is 20 apples we can distribuite these apple within 7 person and distribuite only in odd numbers1 solutions Answer 322802 by sofiyac(695)   on 2011-07-15 09:55:57 (Show Source): You can put this solution on YOUR website!that's not possible
 Polynomials-and-rational-expressions/470573: Essay. List the terms, coefficients, and degree of the following polynomial: 7x^4 – 3x^2 + 5x + 2/31 solutions Answer 322801 by sofiyac(695)   on 2011-07-15 09:51:36 (Show Source): You can put this solution on YOUR website!terms: 7x^4, -3x^2, 5x, 2/3 coefficients: 7, -3, 5 degree: 4
 Polynomials-and-rational-expressions/470582: Write the rational expression in the simplest form, with domain restrictions. x + 6 x2 − 3x − 541 solutions Answer 322800 by sofiyac(695)   on 2011-07-15 09:49:15 (Show Source): You can put this solution on YOUR website!you didn't copy it right, shouldn't it be a division? restriction: x can't be equal to 9
 Pythagorean-theorem/470575: please help me solve this: The area of circle Q is 350cm^2. Find the area of square ABCD to the nearest 0.1cm^2 1 solutions Answer 322799 by sofiyac(695)   on 2011-07-15 09:46:42 (Show Source): You can put this solution on YOUR website!we need to see the picture since we dont know if the circle is inside square or vice versa, or half and so on
 Angles/470627: what is the angle of a X when the sum is 16?1 solutions Answer 322798 by sofiyac(695)   on 2011-07-15 09:43:41 (Show Source): You can put this solution on YOUR website!you need to know the measure of the other angle in order to find x
 Quadratic_Equations/470590: y=-x^2+20x-41 solutions Answer 322797 by sofiyac(695)   on 2011-07-15 08:53:32 (Show Source): You can put this solution on YOUR website!a=-1 b=20 c=-4
 test/470601: 5x-3{x+2y-2[x+y-6(x+3)4(x-2)-1]31 solutions Answer 322794 by sofiyac(695)   on 2011-07-15 08:37:14 (Show Source):
 Percentage-and-ratio-word-problems/470607: If an employee’s salary is multiplied by 1.06, which corresponds to a 6% raise, the result is \$58,300. Find the employee’s current salary. 1 solutions Answer 322791 by sofiyac(695)   on 2011-07-15 08:29:49 (Show Source):
 Miscellaneous_Word_Problems/470608: How Do I Solve Using Variables In Word problems?1 solutions Answer 322790 by sofiyac(695)   on 2011-07-15 08:28:43 (Show Source): You can put this solution on YOUR website!you replace unknowns with letters, for example...let the unknown time be t, then t=distance/rate and so on
 Length-and-distance/470618: Which speed is the fastest (use 1 mile ¡Ö 1.6 kilometers)?1 solutions Answer 322789 by sofiyac(695)   on 2011-07-15 08:27:35 (Show Source): You can put this solution on YOUR website!we don't know what O with two dots is, resubmit the problem and copy it correctly
 Quadratic_Equations/470621: Find the solutions to the equation below. Check all that apply. 4x^2 + 4x + 1 = 01 solutions Answer 322788 by sofiyac(695)   on 2011-07-15 08:27:02 (Show Source): You can put this solution on YOUR website!You didn't list the choices (2x+1)(2x+1)=0 2x+1=0 2x=-1 so there are two solutions, but they're the same
 Equations/470619: -57=(X+273)/ 1.109 What is X=??1 solutions Answer 322785 by sofiyac(695)   on 2011-07-15 08:24:44 (Show Source): You can put this solution on YOUR website! mulitply both sides by 1.109 subtract 273 from each side
 Percentage-and-ratio-word-problems/470454: If there was 16 cupcakes and 20 children. What is the ratio?1 solutions Answer 322672 by sofiyac(695)   on 2011-07-14 17:26:05 (Show Source): You can put this solution on YOUR website!16/20=4/5 so 4 to 5 or 4 cupcakes per 5 kids
 Exponents/470425: I'm to solve for x. The equation is x^-1/7=1/4. How do I get rid of the -1/7 exponent?1 solutions Answer 322667 by sofiyac(695)   on 2011-07-14 16:29:01 (Show Source): You can put this solution on YOUR website! *************** *************** move exponent to bottom, it becomes positive *************** *************** take each side to 7th power *************** *************** cross multiply *************** ***************
 Expressions-with-variables/470423: how do you write 4x+17 in a verbal expression 1 solutions Answer 322657 by sofiyac(695)   on 2011-07-14 15:23:48 (Show Source): You can put this solution on YOUR website!a number times four plus seventeen.
 Exponential-and-logarithmic-functions/470408: Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution. 3 x + 6 = 8 1 solutions Answer 322655 by sofiyac(695)   on 2011-07-14 15:23:08 (Show Source): You can put this solution on YOUR website! 3 x + 6 = 8 3x=2 x=2/3=0.66
 Exponential-and-logarithmic-functions/470413: Solve the system by the substitution method. x + y = 11 y = x2 - 10x + 25 1 solutions Answer 322651 by sofiyac(695)   on 2011-07-14 15:12:16 (Show Source): You can put this solution on YOUR website!x + y = 11 y = x^2 - 10x + 25 *** y=11-x y = x^2 - 10x + 25 11-x=x^2-10x+25 0=x^2-9x+14 0=(x-7)(x-2) x=7 or x=2 y=11-7=4 or y=11-2=9 so (7,4) or (2,9)