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# Recent problems solved by 'MathLover1'

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 Polynomials-and-rational-expressions/651844: How to solve for x: 60X + 63 - 63X = 61.51 solutions Answer 407837 by MathLover1(6812)   on 2012-09-15 20:29:00 (Show Source):
 Inequalities/651834: solving the addition and multiplication principles 8-7x=< 1-3X 1 solutions Answer 407836 by MathLover1(6812)   on 2012-09-15 20:22:48 (Show Source): You can put this solution on YOUR website!...add to both sides ........add to both sides ....both sides multiply bu ...or...
 Linear_Equations_And_Systems_Word_Problems/651806: The difference of two integers is 18.One integer is one-third of the other integer. What are the integers ?1 solutions Answer 407825 by MathLover1(6812)   on 2012-09-15 17:38:40 (Show Source): You can put this solution on YOUR website! let integers be and given: the difference of two integers is .....1 one integer is one-third of the other integer, ....2 solve this system: .....1 ....2 __________________ .....1..plug in from 2 ....solve for now find ....2
 Triangles/651767: Find the measures of the three angles of triangle ABC if the measure of angle A is equal to the measure of angle B. Measure of angle A: 2(6x-5y)+4 Measure of angle B: 54-3(2x-3y) measure of angle C: 4(5x-6y)-2(4y-3x)+301 solutions Answer 407823 by MathLover1(6812)   on 2012-09-15 17:21:57 (Show Source): You can put this solution on YOUR website!if the measure of angle is equal to the measure of angle , then we have ...we can solve this for ....plug it in measure of angle C: measure of angle C: now we have: , then the measure of angle the measure of angle ===== the measure of angle now in all measure of angles we have only one unknown variable, and we also know that ...plug in , and ...solve for now find the measure of each angle: check:
 Quadratic_Equations/651774: what are the x intercepts of -x^2+4x+11 solutions Answer 407814 by MathLover1(6812)   on 2012-09-15 16:30:44 (Show Source): You can put this solution on YOUR website!you have the quadratic in the form set it equal to zero and solve for ...use quadratic formula ...note that , and solutions: ..........first is at point (,) or ..............second is at point (,)
 Expressions-with-variables/651780: Please explain how to solve this: 98-4b= -11b My son is asking whether b-98 is -97 or -98, but that doesn't make sense to me. Thanks! 1 solutions Answer 407801 by MathLover1(6812)   on 2012-09-15 15:56:06 (Show Source): You can put this solution on YOUR website! ...move to the left and to the right side of equal sign (recall that sign changes in this case) we can check result by plugging in ...recall:when multiplying two negative numbers, the product will be positive number ...true; so, is a solution for
 Linear_Algebra/651771: Select ALL calculations that are measured in square units. Answer The amount of fencing needed to surround a garden The amount of carpet needed to cover a floor The amount of sod needed to cover a dirt yard The amount of base boards (molding) needed for a room The amount of water needed to fill a bucket The amount of paint needed to cover a wall 1 solutions Answer 407795 by MathLover1(6812)   on 2012-09-15 15:46:17 (Show Source): You can put this solution on YOUR website!calculations that are measured in square units (you using it in case you measure area): Answer The amount of carpet needed to cover a floor-relates to area The amount of sod needed to cover a dirt yard-relates to area The amount of paint needed to cover a wall -relates to area ------------------------- these are not answer because: The amount of water needed to fill a bucket relates to volume. The amount of fencing needed to surround a garden relates to perimeter.
 Geometry_proofs/651731: segment cd bisects segment rs, but segment rs does not bisect cd. Is this possible?1 solutions Answer 407786 by MathLover1(6812)   on 2012-09-15 13:41:55 (Show Source): You can put this solution on YOUR website!if segment bisects segment , but segment does bisect , then segment and segment have only one point in common and it id end point of segment (either point r or point s lies is midpoint of segment ) so, it is possible... draw a line segment perpendicular at a point or on a line segment
 Angles/651735: 7x+8=4x-3 what is the value of x 1 solutions Answer 407781 by MathLover1(6812)   on 2012-09-15 13:09:27 (Show Source):
 Coordinate-system/651680: Explain how, in words,you would graph the following y=-5x+1 using the cartesian coordinate system.1 solutions Answer 407760 by MathLover1(6812)   on 2012-09-15 09:47:46 (Show Source): You can put this solution on YOUR website!...here you have a linear function; so, the graph will be a line to graph a line you need two points to plot on the Cartesian coordinate system easiest way to find these points is to set and find which will be , and to set and find which will be ...if , will be: so, is at (,) ...if , will be: so, is at (,) now you are ready to plot these points on the Cartesian coordinate system and draw a line through
 Probability-and-statistics/651587: Nine college students had eaten the following number of times at a fast food restaurant for dinner in the last ten days: 4,10,1,7,1,8,1,5,2. Find the mean, median, mode, range, and midrange for these data. Please so ALL of your work. 1 solutions Answer 407730 by MathLover1(6812)   on 2012-09-14 22:21:37 (Show Source): You can put this solution on YOUR website! 4,10,1,7,1,8,1,5,2 The mean represents the average or the sum of the data divided by the number of pieces of data : The median is the value in the middle of a set of ranked data: 1,1,1,2,4,5,7,8,10 The mode is the piece of date that occurs most frequently. The midrange is the value half way between the lowest and highest values in a set of data. It is found by adding the loweast and highest values and dividing the sum by .
Length-and-distance/651538: The vertices of rectangle ABCD on a coordinate grid are A(2, 6), B(2, 7), C(8, 7) and D(8, 6).

Which of these rectangles is congruent to rectangle ABCD?
Rectangle with vertices at (-3,2) (-2, 2), (-2, -3) , (-3, -3)
Rectangle with vertices at (-1, -7), (-1, -6), (5, -6) , (5, -7)
Rectangle with vertices at (7, -2), (9, -2), (9, 3) , (7, 3)
Rectangle with vertices at (-8, 5), (-2, 5), (-2, 7) , (-8, 7)

I tried to work it on my own but i compleletly forgot how to?

1 solutions

Answer 407725 by MathLover1(6812)   on 2012-09-14 21:11:28 (Show Source):
You can put this solution on YOUR website!
answer is: Rectangle with vertices at (-1, -7), (-1, -6), (5, -6) , (5, -7)
here are the lengths of its sides:
(-1, -7), (-1, -6),
 Solved by pluggable solver: Distance Formula to determine length on coordinate plane The distance (d) between two points is given by the following formula: Thus in our case, the required distance is For more on this concept, refer to Distance formula.

(5, -6) , (5, -7)
 Solved by pluggable solver: Distance Formula to determine length on coordinate plane The distance (d) between two points is given by the following formula: Thus in our case, the required distance is For more on this concept, refer to Distance formula.

(-1, -6), (5, -6)
 Solved by pluggable solver: Distance Formula to determine length on coordinate plane The distance (d) between two points is given by the following formula: Thus in our case, the required distance is For more on this concept, refer to Distance formula.

(-1, -7), (5, -7)
 Solved by pluggable solver: Distance Formula to determine length on coordinate plane The distance (d) between two points is given by the following formula: Thus in our case, the required distance is For more on this concept, refer to Distance formula.

here are the lengths of sides of rectangle ABCD on a coordinate grid are A(2, 6), B(2, 7), C(8, 7) and D(8, 6):

A(2, 6), B(2, 7), :
 Solved by pluggable solver: Distance Formula to determine length on coordinate plane The distance (d) between two points is given by the following formula: Thus in our case, the required distance is For more on this concept, refer to Distance formula.

C(8, 7) and D(8, 6)
 Solved by pluggable solver: Distance Formula to determine length on coordinate plane The distance (d) between two points is given by the following formula: Thus in our case, the required distance is For more on this concept, refer to Distance formula.

A(2, 6),C(8, 7)
 Solved by pluggable solver: Distance Formula to determine length on coordinate plane The distance (d) between two points is given by the following formula: Thus in our case, the required distance is For more on this concept, refer to Distance formula.

B(2, 7),D(8, 6)
 Solved by pluggable solver: Distance Formula to determine length on coordinate plane The distance (d) between two points is given by the following formula: Thus in our case, the required distance is For more on this concept, refer to Distance formula.

you can prove this way that all other rectangles are not congruent to ABCD

 Distributive-associative-commutative-properties/651555: Can you please help me figure out weather this is Commutatuve, Associative, Identitiy, or distributive. 1 solutions Answer 407717 by MathLover1(6812)   on 2012-09-14 20:17:31 (Show Source): You can put this solution on YOUR website!Identity Properties The additive identity is :
Number-Line/651536: How do you graph 0.9 in a number line
1 solutions

Answer 407703 by MathLover1(6812)   on 2012-09-14 19:01:25 (Show Source):
You can put this solution on YOUR website!

 Solved by pluggable solver: Plot a number on a number line

 Expressions-with-variables/651531: Translate to a system of equations and solve. The sum of two numbers is 8. Their difference is 12. Find the number. So far I have: x+y= 30 x-y= 12 I don't know what I have to do to solve for the numbers.1 solutions Answer 407699 by MathLover1(6812)   on 2012-09-14 18:47:56 (Show Source): You can put this solution on YOUR website! ....1 ....2 __________________ you can solve this system by addition; add 1 and 2 ....1 + ....2 _____________________ now find ....1
 Linear-equations/651525: 29-2/7y=1/9x in the form ax+by=c. where a, b, and c are integers1 solutions Answer 407693 by MathLover1(6812)   on 2012-09-14 18:32:33 (Show Source): You can put this solution on YOUR website! in the form ...common denominator for and or
 Linear-systems/651501: 39. What is the value of x if 1 minus the reciprocal of (1-x) equals the reciprocal of (1-x)? (MAO 1992) 1 solutions Answer 407686 by MathLover1(6812)   on 2012-09-14 17:46:28 (Show Source): You can put this solution on YOUR website! the reciprocal of is if will be: ....both sides multiply by to get a rid of denominator
 Permutations/651477: In how many ways can a student answer 14 true or false questions on a test?1 solutions Answer 407677 by MathLover1(6812)   on 2012-09-14 16:02:45 (Show Source): You can put this solution on YOUR website! For each question, if you have to answer all of them, you can either answer it true or false; so for questions , the number of ways is But, if you have an option to either answer it true, answer false, or leave it blank, this is ways for each of questions, so the total number of ways is .
 Money_Word_Problems/651456: what is the answer to £6000 at a 4.5 intrest rae per annum for 7 years please?1 solutions Answer 407674 by MathLover1(6812)   on 2012-09-14 15:50:37 (Show Source): You can put this solution on YOUR website! the answer to £ at a percent (which is equal to ) interest rate per year for years will be: £ so, adding interest you have to pay for years, you will have to pay £
 t e s t/651466: This is a word problem.... In the 107th Congress, the US House of Representatives had a total of 430 democrats and republicans. There were 10 more republicans than democrats. Find the number of representatives from each party.1 solutions Answer 407673 by MathLover1(6812)   on 2012-09-14 15:35:12 (Show Source): You can put this solution on YOUR website! let be democrats and republicans In the 107th Congress, the US House of Representatives had a total of democrats and republicans; so, we have ....1 There were more republicans than democrats; so, we have .........2 now, we are going to solve this system: ....1 .........2 ______________________ ....1...solve for ...plug it in 2 .........2.solve for now find
 Graphs/651471: 9x-9<4x-11 solve inequality, graph the solution set and write in interval notation1 solutions Answer 407672 by MathLover1(6812)   on 2012-09-14 15:16:17 (Show Source): You can put this solution on YOUR website! (,)