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Recent problems solved by 'MathLover1'

MathLover1 answered: 6799 problems
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test/723986: Please simplify the expression if possible: x^2 - 3x - 10 / x^2 + 5x + 6 1 solutions Answer 443522 by MathLover1(6801)   on 2013-03-09 18:38:58 (Show Source): You can put this solution on YOUR website! .......substitute with , and with ...group

test/723989: Please simplify the expression if possible: x^2 + 10x + 24 / x^2 - 16 1 solutions Answer 443516 by MathLover1(6801)   on 2013-03-09 18:18:56 (Show Source): You can put this solution on YOUR website! factor completely and .......substitute with ...group and ...use the rule now plug it in your expression ...simplify

Linear-equations/723995: 6(x-1)/7=2(x+4)/8 1 solutions Answer 443512 by MathLover1(6801)   on 2013-03-09 18:09:06 (Show Source): You can put this solution on YOUR website! ....cross multiply

test/724001: I need help on my test 1 solutions Answer 443510 by MathLover1(6801)   on 2013-03-09 18:01:13 (Show Source): You can put this solution on YOUR website! post your questions here

test/723990: Please simplify the expression if possible: x^3 - x^2 - 12x / x^3 - 9x 1 solutions Answer 443505 by MathLover1(6801)   on 2013-03-09 16:40:28 (Show Source): You can put this solution on YOUR website! now factor ...replace with ...group and write as plug both in your expression

Sequences-and-series/723968: Find the nth term of each arithmetic sequence described a1=6,d=3,n=12 Please help i need work for this problem i do not understand, then i will be able to solve others. Thank You 1 solutions Answer 443504 by MathLover1(6801)   on 2013-03-09 16:21:25 (Show Source): You can put this solution on YOUR website! check: if ....first term is correct, if ....... if ....... if ....... : : : if .......

test/723973: Please simplify the expression of possible. 2x^2 + x/4x 1 solutions Answer 443501 by MathLover1(6801)   on 2013-03-09 15:59:56 (Show Source): You can put this solution on YOUR website! I guess you have this: ...if so, than you have

Square-cubic-other-roots/723936: How do you simplify a problem with a number in front of the square root and variables by the radical? For example: 2 to the square root of 147 x^6 y^7? Thanks so much:) 1 solutions Answer 443499 by MathLover1(6801)   on 2013-03-09 15:55:42 (Show Source): You can put this solution on YOUR website! if you have this: it will be

Polynomials-and-rational-expressions/723911: S=4lw+2wh for h 1 solutions Answer 443495 by MathLover1(6801)   on 2013-03-09 15:43:14 (Show Source): You can put this solution on YOUR website! ....solve for

Graphs/723956: Find the slope of the line. -4x-7y=5 1 solutions Answer 443484 by MathLover1(6801)   on 2013-03-09 15:09:33 (Show Source): You can put this solution on YOUR website! ..first write it in slope-intercept form ; means, you need to solve it for or so, the slope of the line is

Polynomials-and-rational-expressions/723921: what is equivalent to (3+y)^4 1 solutions Answer 443483 by MathLover1(6801)   on 2013-03-09 15:06:04 (Show Source): You can put this solution on YOUR website! = = =

�t�e�s�t/723947: The sum of two numbers is 10. The sum of their squares is 68 . Find the numbers. Can you please help me? Thanks so much in advance:) 1 solutions Answer 443482 by MathLover1(6801)   on 2013-03-09 15:00:05 (Show Source): You can put this solution on YOUR website! let numbers be and given: The sum of two numbers is . ....eq.1 The sum of their squares is . ....eq.2 solve the system: ....eq.1 ....eq.2 __________________________ start with eq.1 ....eq.1 ...solve for ..... substitute it in eq.2 ....eq.2 ...solve for .......simplify, divide all by .......use quadratic formula solutions: or now find or solution pairs are: and or and

real-numbers/723942: True or False 1. The set of numbers less than zero but greater than 1 is the empty set. 2. The set of even integers less than zero is a finite set. 3. If the replacement set of x is {1, 2, 3, 4, 5}, then the solution set for the statement is 3x=27 is {9}. Thanks so much for your help! 1 solutions Answer 443478 by MathLover1(6801)   on 2013-03-09 14:23:57 (Show Source): You can put this solution on YOUR website! 1. numbers than : {.,,,,,......} but greater than {.: ,,,,......} as you can see, there are no common elements; so, , is the set 2. , it is { ,,,,.....} 3. If the replacement set of is {1, 2, 3, 4, 5}, then the solution set for the statement is is {9}. , there is no in the replacement set of

Inequalities/723929: In a typical group of 1000 workers from each of the boatbuilding, iron foundry, and amusement park/arcade industries, there were 30 more injuries in iron foundries (I) than in amusement parks/arcades (A). There were 12 more injuries in amusement parks/arcades than in boatbuildings (B). Among these workers, there were 387 nonfatal occupational injuries. How many injuries took place in each industry? I'm guessing (keyword being guessing) that: Data:1000 workers, I had 30 more than A and A had 12 more than B and the total is 387. Variable: A= amusement parks/arcades, B= boatbuildings, I= iron foundry Plan: B+(B+A)+(B+I)= 387 Equation: B+(B+12)+(B+30)=387 3B+42 = 387 -42 -42 3B = 345 3B/3 345/3 B = 115 Solution: A= 127, B= 115, and I= 145 Am I right? 1 solutions Answer 443474 by MathLover1(6801)   on 2013-03-09 14:00:30 (Show Source): You can put this solution on YOUR website! there were nonfatal occupational injuries let the boat-building injuries be ,amusement park/arcade injuries be , and iron foundry injuries be given: ...substitute ...=> ...=> ...plug in all values ...solve for now find and check their sum: check your solution: A= 127, B= 115, and I= 145 Am I right? your equation: ...you put , but it is given that had more than , or so, you need to put since also given that had more than , we know that and we go back to and substitute ...=>... now, plug it in equation

Equations/723935: answers to these please and how you worked them out 1. 6a=48 2.4y-15=21 3.5p+9=39 1 solutions Answer 443466 by MathLover1(6801)   on 2013-03-09 13:19:42 (Show Source): You can put this solution on YOUR website! 1. ......solve for 2.......solve for 3.......solve for

decimal-numbers/723867: estimate the answer by rounding 453+158+204+555+361 1 solutions Answer 443452 by MathLover1(6801)   on 2013-03-09 10:36:37 (Show Source): You can put this solution on YOUR website! it's not clear to what you need to round it: to the nearest tents or to the nearest hundreds you can round it to (to the nearest tents) or ( to the nearest hundreds) you can round it to (to the nearest tents) or ( to the nearest hundreds) you can round it to (to the nearest tents) or ( to the nearest hundreds) you can round it to (to the nearest tents) or ( to the nearest hundreds) you can round it to (to the nearest tents) or ( to the nearest hundreds) if you need to round it to to the nearest tents, than you will have but, if you need to round it to to the nearest hundreds , than you will have

Inverses/723882: Use the communative law of multiplication to write an equivalent expression for s+5t 1 solutions Answer 443450 by MathLover1(6801)   on 2013-03-09 10:25:47 (Show Source): You can put this solution on YOUR website! Multiplication of numbers is commutative when ; a product isn’t changed at rearrangement of its factors

test/723761: The AT&T plan cost $25 more per month than the Verizon plan, but charges less for every text message sent. You test the AT&T plan for two month. You sent 100 texts and it cost $35.00 for the first month. You sent 50 texts and it cost you $32.50 for the second month. You test the Verizon plan for two month. You sent 100 texts and it cost $40.00 for the first month. You sent 50 texts and it cost you $22.50 for the second month. How much money does each plan charge per month? How much money does each plan charge per text message? At how many text messages do the two plan cost the same amount? please help 1 solutions Answer 443368 by MathLover1(6801)   on 2013-03-08 22:00:50 (Show Source): You can put this solution on YOUR website! ..post your question here and we will help you...

test/723762: Help me 1 solutions Answer 443367 by MathLover1(6801)   on 2013-03-08 22:00:11 (Show Source): You can put this solution on YOUR website! what is your question?...post it here and we will help you...

Equations/723757: (2x-5)(9x-15)=0 1 solutions Answer 443366 by MathLover1(6801)   on 2013-03-08 21:58:53 (Show Source): You can put this solution on YOUR website! ...here you have completely factored quadratic equation (graph is a parabola); so, you will have two roots if ....=>.......=>......=>... and if ....=>.......=>......=>......=>...

Functions/723664: Please help me solve this equation (((f(x)= √4x+16))) Consider the function a) Find the domain and range. b) Find f(3). Please show work. I do not understand this at all and wish to know how to figure this stuff out on my own. 1 solutions Answer 443307 by MathLover1(6801)   on 2013-03-08 19:44:43 (Show Source): You can put this solution on YOUR website! if you have this: b) Find but, if you have this: b) Find

Miscellaneous_Word_Problems/723718: How to translate the following problem into a equation? Taryn drove 158 mile of a 275 mile trip. Ben drove the remainder of the trip. How far did Ben drive? 1 solutions Answer 443295 by MathLover1(6801)   on 2013-03-08 18:31:44 (Show Source): You can put this solution on YOUR website! if Ben drove mile, than the remainder of the trip that Ben drive

Equations/723701: 0+50 multiply by 1 - 60 - 60 multiply by 0 + 10 = what is the answer 1 solutions Answer 443292 by MathLover1(6801)   on 2013-03-08 18:21:33 (Show Source): You can put this solution on YOUR website! if you mean this:

Reduction-of-unit-multipliers/723688: you travel 875 yards 75 seconds ,how many miles per hour is that? 1 solutions Answer 443261 by MathLover1(6801)   on 2013-03-08 15:15:04 (Show Source): You can put this solution on YOUR website! ...first convert yards to feet ...convert ft to miles, and seconds in hour so,

Quadratic-relations-and-conic-sections/723666: What are the focus and directrix of the parabola with the equation y = 1/12x2? focus: (3, 0) ; directrix: y = –3 focus: (–3, 0) ; directrix: y = 3 focus: (0, 3) ; directrix: y = –3 focus: (0, –3) ; directrix: y = 3 1 solutions Answer 443257 by MathLover1(6801)   on 2013-03-08 14:55:43 (Show Source): You can put this solution on YOUR website! The standard equation for a parabola with its axis vertical is: ...(1) The vertex is (,). The focus is (,). The directrix is . you have ...solve for ....write it in form given above as you can see ...=>... than, the vertex is (,)=(,) the focus is (, )= (, )=(,) the directrix is ...=>.....=>.. so, your answer is: focus: (,) ; directrix:

Functions/723680: How do you rewrite an equation in function notation? The example I was given is x-7y=35 f(x)=? 1 solutions Answer 443255 by MathLover1(6801)   on 2013-03-08 14:32:28 (Show Source): You can put this solution on YOUR website! =?......as you know ; so, all you need to do is to solve given equation for so,

Triangles/723486: triangle ABC has an exterior angle at C. if the measure of the exterior angle is represented by 4x-10, angle B is represented by x, and angle A is 2x+20 what is the measure of the exterior angle 1 solutions Answer 443195 by MathLover1(6801)   on 2013-03-07 22:43:41 (Show Source): You can put this solution on YOUR website! an exterior angle is equal to sum of two remote interior angles; so, you will have ......solve for .......the measure of the angle .......the measure of the exterior angle .......the measure of the angle

Quadratic-relations-and-conic-sections/723467: I need the step by step process to classify this conic section using the discriminant I was sick the day of the lesson and really have no clue on how to begin I would greatly appreciate it if you could include the equation that this problem is based on also.- 1 solutions Answer 443193 by MathLover1(6801)   on 2013-03-07 22:30:20 (Show Source): You can put this solution on YOUR website! The discriminant of the equation is the quantity . Assuming , and are and that degenerate cases are excluded. Then, if , the graph is an or a if , the graph is a if , the graph is a you have .....where , ,,,, and so, , the graph is a

test/723401: Median,mode & range for: 24,23,22,17,18,23,19 1 solutions Answer 443191 by MathLover1(6801)   on 2013-03-07 22:13:50 (Show Source): You can put this solution on YOUR website! The mean is the usual average, so: The median is the middle value, so I'll have to rewrite the list in order: ,,,,,,.....the middle value is The "range" is just the difference between the largest and smallest values.

Sequences-and-series/723418: Please help me solve: Write the rule for the arithmetic series 1 solutions Answer 443176 by MathLover1(6801)   on 2013-03-07 21:14:40 (Show Source): You can put this solution on YOUR website! a rule for creating nth term formula: given: if we have , means ....find first term .....first term so, the nth term formula is: so, the arithmetic series:,,,,....

Geometric_formulas/723308: what is the geometric mean of 2a and 4a 1 solutions Answer 443138 by MathLover1(6801)   on 2013-03-07 18:21:56 (Show Source): You can put this solution on YOUR website! What is the geometric mean of: and ? take the product because there are only two numbers, the nth root is the square root, and the