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Probability-and-statistics/372655: If the probability of rain for the day is 65% , what are the odds agianst rain? 1 solutions Answer 265396 by Fombitz(13828)   on 2010-11-17 13:27:07 (Show Source): You can put this solution on YOUR website! Probability is given as outcomes for rain divided by total outcomes. Odd are given as outcomes for rain to outcomes against rain. Odds are 65:35 or 13:7 in simplest terms.

Graphs/372640: WHat is the graph for this equation? f(x)= x^2+6x+8 I'm not sure if the quadratic equation is used for this or factoring?. i used h=-b/2a to get h,k = (-3,-1) but i'm not sure if that is what i am supposed to do. The graph is supposed to be a parabola i believe. I need to find the points for it. Please help! 1 solutions Answer 265394 by Fombitz(13828)   on 2010-11-17 13:25:39 (Show Source): You can put this solution on YOUR website! . . . Plug in x values and obtain y values using the equation. , . , , by symmetry since is the line of symmetry. . . , , by symmetry. . . , , by symmetry. . . .

Exponents/372641: (0.4*10^-6) (0.7 * 10^-2) 1 solutions Answer 265391 by Fombitz(13828)   on 2010-11-17 13:16:49 (Show Source): You can put this solution on YOUR website!

Graphs/372642: Which compound sentence is the equivalent of |x - 5| = 4 1 solutions Answer 265390 by Fombitz(13828)   on 2010-11-17 13:15:12 (Show Source): You can put this solution on YOUR website! and

absolute-value/372644: What is the solution to this absolute value equation? |5x+3|=7 I came up with the solutions x = -2 and x = 4/5. (-2,4/5). Please help, thank you! 1 solutions Answer 265389 by Fombitz(13828)   on 2010-11-17 13:14:44 (Show Source): You can put this solution on YOUR website! . . . Yes, you're correct. Well done!

Probability-and-statistics/372516: How do you solve: An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at least one correct answer. Thank you very much! 1 solutions Answer 265376 by Fombitz(13828)   on 2010-11-17 11:21:43 (Show Source): You can put this solution on YOUR website! We'll work the problem backwards. Let find the probability that every answer is incorrect. . . P(at least 1 T)+P(10F)= P(at least 1 T)= P(at least 1 T)= P(at least 1 T)=

Quadratic_Equations/372514: Use the quadratic formula to solve x2 + 8x + 9 = 0. Estimate irrational solutions to the nearest tenth. 1 solutions Answer 265375 by Fombitz(13828)   on 2010-11-17 11:18:34 (Show Source): You can put this solution on YOUR website! Use the quadratic formula, Time to get out the calculator for the estimating.

Circles/372504: Find the center of the circle defined by the equation x^2+y^2+16x+10y+53=0 The question want you to put it in this form (x-h)^2+(y-k)^2=r^2 1 solutions Answer 265374 by Fombitz(13828)   on 2010-11-17 11:15:23 (Show Source): You can put this solution on YOUR website! Complete the square in x and y.

Quadratic_Equations/372585: Compute the value of the discriminant and give the number of real solutions to the quadratic equation. -2x^2+3x+1=0 discriminant= number of real numbers = 1 solutions Answer 265373 by Fombitz(13828)   on 2010-11-17 11:13:10 (Show Source): You can put this solution on YOUR website! . . . If , 2 real solutions. If , 1 real solution. If , 0 real solutions.

percentage/372567: 54 is 24% of what number. I came up with 54=0.24*y 54/0.24 y=225 Am I correct 1 solutions Answer 265372 by Fombitz(13828)   on 2010-11-17 11:11:46 (Show Source): You can put this solution on YOUR website! Yes, well done. Remember you can always check your answer. %

Rational-functions/372571: how do you solve 4x^2=21X+20=0? 1 solutions Answer 265371 by Fombitz(13828)   on 2010-11-17 11:09:45 (Show Source): You can put this solution on YOUR website! You have two equal signs in your equation. Only one is allowed. Please repost.

Equations/372584: 8s+9=7s+6 1 solutions Answer 265370 by Fombitz(13828)   on 2010-11-17 11:09:10 (Show Source): You can put this solution on YOUR website!

Sequences-and-series/372583: Can you please help me find the first five terms of the sequences with the nth term given as follows: (a) 6n + 2 ________, ________, ________, ________, ________ (b) n³ + n2 + 2n + 1 ________, ________, ________, ________, ________ (c) 2n + 3 ________, ________, ________, ________, ________ 1 solutions Answer 265369 by Fombitz(13828)   on 2010-11-17 11:08:00 (Show Source): You can put this solution on YOUR website! I'll start the first term for each, you continue to find the remaining terms. . . . . . . . . . . . . Now follow the same procedure for through

Probability-and-statistics/372507: How do you solve: Mark can remember only the first 4 digits of his friend's phone number. He also knows that the number has 7 digits and that the last digit is not a 0. If Mark were to dial all of the possible numbers and if it takes him 23 seconds to try each one, how long would it take to try every possibility? Thank you very much! 1 solutions Answer 265367 by Fombitz(13828)   on 2010-11-17 11:05:22 (Show Source): You can put this solution on YOUR website! So he needs the final three digits. The first digit can be from 0-9. The second digit can be from 0-9. The third digit can be from 1-9 since he knows it's not a 0. In total, then the numbers can be, numbers If each number takes 23 seconds, then seconds. There are 3600 seconds in 1 hour, hours or 5 hours and 45 minutes.

Radicals/372582: Multiply. (√3 +1)(5√3 +1) 1 solutions Answer 265365 by Fombitz(13828)   on 2010-11-17 11:01:03 (Show Source): You can put this solution on YOUR website! Use the FOIL Method,

Trigonometry-basics/372572: Find the center of the circle using these three points: (0,1),(8,1),(4,5) I still can't figure how to solve this please help. 1 solutions Answer 265364 by Fombitz(13828)   on 2010-11-17 10:59:06 (Show Source): You can put this solution on YOUR website!

Triangles/372576: perimeter of a triangle with Side A = 7 in., Side B = 7 in., Side C = 6 in 1 solutions Answer 265363 by Fombitz(13828)   on 2010-11-17 10:56:38 (Show Source): You can put this solution on YOUR website! in

Rational-functions/372575: how do you solve 7t^2-4t=3t^2? 1 solutions Answer 265362 by Fombitz(13828)   on 2010-11-17 10:53:23 (Show Source): You can put this solution on YOUR website! Two solutions: . . .

Square-cubic-other-roots/372580: Please help solve this problem: square root of 5(square root 5 +2) 1 solutions Answer 265361 by Fombitz(13828)   on 2010-11-17 10:52:15 (Show Source): You can put this solution on YOUR website!

Linear-equations/372570: Hello, sovle graphically x+y+2=0 and 3x-4y=5. write down coordinates of point of intersection of the two lines. Thank you 1 solutions Answer 265360 by Fombitz(13828)   on 2010-11-17 10:51:14 (Show Source): You can put this solution on YOUR website! . . . . . . . . . . . . This example is not really appropriate for solving graphically because of the nature of the solution and highlights some of the drawbacks especially in getting an exact answer. . . Solving the problem algebraically, Then using either equation to solve for . So unless you have graph paper with (1/7) divisions you wouldn't get the exact answer.

Exponents/372502: 21a^2b^6 + 15a^7b^3 – ab ___________________ 54a^5b^2 1 solutions Answer 265358 by Fombitz(13828)   on 2010-11-17 10:35:37 (Show Source): You can put this solution on YOUR website! . . . . . .

Probability-and-statistics/372501: How do you solve: If a single fair die is rolled, find the probability that the number rolled is 5 given given that it is odd. Thank you very much! 1 solutions Answer 265356 by Fombitz(13828)   on 2010-11-17 10:28:52 (Show Source): You can put this solution on YOUR website! Since you know it's odd there are only possible choices (,,). Only one of those choices is .

Probability-and-statistics/372563: If a coin was tossed four times, what is the probability that the coin will land on heads at least one of those times? 1 solutions Answer 265355 by Fombitz(13828)   on 2010-11-17 10:27:39 (Show Source): You can put this solution on YOUR website! Work the problem backwards. Find the probability that the coin will only land tails each time. . . . . P(4 tails)+P(not 4 tails)=1 P(not 4 tails)=P(at least one head)=1-P(4 tails)

Linear-equations/372560: Evaluate 5x - 10y = 30 1 solutions Answer 265353 by Fombitz(13828)   on 2010-11-17 10:24:40 (Show Source): You can put this solution on YOUR website! It is a straight line with a slope of and a y-intercept of . . . .

Radicals/372500: I having trouble getting this radical expression to solve. I do not have the root symbol so I will use the forward slash. I get different answers each time I try to solve. Can you please help me understand this problem? /10 − 2x − /5x + 16 = 3 /10-2x=3-/5x+16 (/10-2x)^2= (3- /5x+16)^2 10-2x=9-6/5x+16 + (5x+16) 10=9-6/5x+16 1=6/5x+16 0.1666=/5x+16 0.1666^2=(/5x+16)^2 0.03=5x+256 -255.973 or -256=x 1 solutions Answer 265352 by Fombitz(13828)   on 2010-11-17 10:22:32 (Show Source): You can put this solution on YOUR website! You can just use sqrt(10-2x) to denote the square root function. . . . Square both sides. Square both sides again, Two solutions: . . . . . . Verify the solutions, Since would lead to a negative argument for the square root function, it is not a solution. . . .

Equations/372498: M=3 What would the slope of a perpendicular line be? Show work please. m=3 m= 3/1 m= -3 I'm lost. 1 solutions Answer 265349 by Fombitz(13828)   on 2010-11-17 10:09:20 (Show Source): You can put this solution on YOUR website! Perpendicular lines have slopes that are negative reciprocals.

Numbers_Word_Problems/372497: Using algebra, find three consecutive odd integers, such that the sum of the smallest and twice the second is twenty more than the third. This is what I have: 20(x + 2(x+2))= x+6 1 solutions Answer 265348 by Fombitz(13828)   on 2010-11-17 10:08:25 (Show Source): You can put this solution on YOUR website! , and are the integers. . . . Now solve for .

Circles/372552: Find the center of the circle with these three points:(-3,-6),(9,-6),(3,0) I know how to find the radius by using points,but I'm not sure I know how to find the center of a circle with points please help. 1 solutions Answer 265346 by Fombitz(13828)   on 2010-11-17 10:06:47 (Show Source): You can put this solution on YOUR website! Draw a line from (,) to (,). The midpoint of that line is (,). Since the distance from the midpoint to (,) and (,), it is the center of the circle. . . . . . . The radius is the distance from the center to any of the points and equals units. . . .

Equations/372551: (5/y-3) = 1 + (y+7)/(2y-6) 1 solutions Answer 265345 by Fombitz(13828)   on 2010-11-17 09:59:59 (Show Source): You can put this solution on YOUR website! Use the common denominator, . . . . . . . . . . . . Since the equation leads to an inconsistency, there is no solution.

Probability-and-statistics/372499: How do you solve: A basketball player hits three-point shots 45% of the time. If she takes 4 shots during a game, what is the probability that she misses the first shot and hits the last three shots? Thank you very much! 1 solutions Answer 265344 by Fombitz(13828)   on 2010-11-17 09:56:17 (Show Source): You can put this solution on YOUR website! . . .

Quadratic_Equations/372496: Please help me with this equation 1 solutions Answer 265343 by Fombitz(13828)   on 2010-11-17 09:53:21 (Show Source): You can put this solution on YOUR website! Two solutions: . . .