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 Graphs/346099: find the x-intercept: -2x^2-16x+241 solutions Answer 247496 by Fombitz(13828)   on 2010-09-21 11:09:13 (Show Source): You can put this solution on YOUR website! Use the quadratic formula, . . .
 test/346103: 1 over 25 parenthasis to the 1over 2 power....simplify1 solutions Answer 247495 by Fombitz(13828)   on 2010-09-21 11:05:42 (Show Source):
 Vectors/346121: 1 solutions Answer 247493 by Fombitz(13828)   on 2010-09-21 11:02:32 (Show Source): You can put this solution on YOUR website!Please repost.
 Complex_Numbers/346123: 2+8i/5+i1 solutions Answer 247492 by Fombitz(13828)   on 2010-09-21 11:02:07 (Show Source):
 Mixture_Word_Problems/346125: a chemist needs 110 milliliters of a 46% solution but has only 40% and 73% solutions available. Find how many mililiters of each that should be mixed to get the desired solution.1 solutions Answer 247491 by Fombitz(13828)   on 2010-09-21 10:59:39 (Show Source): You can put this solution on YOUR website!Let be the amount of 40% solution. Let be the amount of 73% solution. . . Total volume equation: 1. . . Concentration equation: 2. From eq. 1, Substitute into eq. 2, ml Then from eq. 1, ml
 Vectors/346124: Solve the problem: Find the inner product of the vectors <2,5> and <4, -2>. Then state whether the vectors are perpendicular or not.1 solutions Answer 247490 by Fombitz(13828)   on 2010-09-21 10:55:44 (Show Source): You can put this solution on YOUR website!A:(2,5) B:(4,-2) . . . . . . No, if they were perpendicular, the dot product would equal zero.
 Finance/346122: Please help :c) At an interest rate of 10%, what is present value of \$1m to be received in: 150 years?1 solutions Answer 247489 by Fombitz(13828)   on 2010-09-21 10:54:24 (Show Source): You can put this solution on YOUR website! 62 cents invested at 10% for 150 years will yield \$1,000,000. Save your pennies.
 Equations/346104: Subtract. Simplify if possible 20/y - 5 - 20/5 - y1 solutions Answer 247488 by Fombitz(13828)   on 2010-09-21 10:51:50 (Show Source):
 Age_Word_Problems/346107: 3(x-4)-7(x+2)=-2(x+18) I have worked on this problem for about an hour I know that the - is messing me up but I cannot figure it out. the answer is 5 but I need to know the process so that I can apply to my other problems thanks so much1 solutions Answer 247487 by Fombitz(13828)   on 2010-09-21 10:50:15 (Show Source): You can put this solution on YOUR website! Take it from there and solve for . Also make a note on where you made your mistakes in your previous attempts for future problems.
 test/346110: (-64)1/2 power1 solutions Answer 247485 by Fombitz(13828)   on 2010-09-21 10:48:31 (Show Source): You can put this solution on YOUR website! where
 test/346113: (10,000)1/4 power...simplify1 solutions Answer 247484 by Fombitz(13828)   on 2010-09-21 10:47:15 (Show Source):
 absolute-value/346120: How do I find the absolute value of this problem: |5-12| I had -7, but my teacher told me it was wrong.1 solutions Answer 247483 by Fombitz(13828)   on 2010-09-21 10:46:14 (Show Source): You can put this solution on YOUR website!The absolute value function always delivers a non-negative answer.
 Geometry_proofs/346119: Given: l is parallel to m Prove: the measurement of angle 4 + measurement of angle 5= 180 degrees Show the statements and reason1 solutions Answer 247482 by Fombitz(13828)   on 2010-09-21 10:45:24 (Show Source): You can put this solution on YOUR website!What's angle 4 and 5 in relation to lines l and m? Or if you have a diagram you could post it online.
 test/346115: (16apower4)power1/41 solutions Answer 247481 by Fombitz(13828)   on 2010-09-21 10:44:29 (Show Source): You can put this solution on YOUR website!To show exponentiation, use the caret ^. Example, x^2= (16a^4)^1/4= (16a^4)^1/4= (16a^4)^1/4= (16a^4)^1/4=
 Matrices-and-determiminant/346098: I need to find the intersecting points of two equations: y=.15x and y=.2(x-20)and graph them. I have included my problem and what is expected. I'm lost. Ok this is what I got : You would set the two equations equal to each other and solve for x .15x=.2(x-20) using the Elimination Method Reorder the terms: 0.15x = 0.2(-20 + x) 0.15x = (-20 * 0.2 + x * 0.2) 0.15x = (-4 + 0.2x) Solving 0.15x = -4 + 0.2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2x' to each side of the equation. 0.15x + -0.2x = -4 + 0.2x + -0.2x Combine like terms: 0.15x + -0.2x = -0.05x -0.05x = -4 + 0.2x + -0.2x Combine like terms: 0.2x + -0.2x = 0.0 -0.05x = -4 + 0.0 -0.05x = -4 Divide each side by '-0.05'. x = 80 Simplifying x = 80 Now that X = 80, I plugged it into the equation y=0.15x and got this: y=0.15x y=0.15(80) y= 12 Now this is the question to my problem and I do not know how to get the answer. I have to graph this and show the intersection. a teacher is looking for the best option in purchasing school supplies for a classroom. Where Company A is offering a discount for every dollar amount spent on school supplies and where Company B is offering a higher discount than Company A, but the discount for Company B is only offered for every dollar amount spent above \$20.00. I will determine and explain which company will offer a better price based upon the dollar amount the teacher spends on school supplies. Option 1- Company A will offer her a 15% discount on the total amount spent in the store. Option 2- Company B will offer her a 20% discount on the remaining amount after the first \$20 is spent. Depict the situation graphically, using appropriate graphing software such as Excel or an online graphing utility. Include the following in your graph: • A depiction of each cost option on the same graph • Clear labels of the cost to the hypothetical customer for both options on the graph • The intersection of the cost options (if one exists) I'm so lost. I do not know how to graph this. Please help if you can. 1 solutions Answer 247480 by Fombitz(13828)   on 2010-09-21 10:41:46 (Show Source): You can put this solution on YOUR website!First your answer is correct. Now plotting. When , when , . . . Plot the points and the line connecting them. The x-axis is the amount of money you spend. The y-axis is the discount you receive. . . . The red line is the savings from the Company A plan. . . . The Company B savings only begins at . So you have to spend at least \$20 to receive any discount. When , When , Plot those points and line. . . . The blue line is the savings from the Company B plan. . . . When does the Company B plan savings equal the Company A plan savings. You already calculated that point. . . . When you spend \$80, you get a savings from both plans of \$12. Plot that point too. . . . . . . Once you pass that point (\$80), Company B savings (blue line) are higher than Company A. . . . If you spend less than \$80, Company A savings (red line) are higher than Company B.
 Expressions-with-variables/345774: Kim and Dustin together have 96 cards, Dustin and Mike together have 93 cards, and Kim and Mike together has 81 cards. How many cards does each person have?1 solutions Answer 247478 by Fombitz(13828)   on 2010-09-21 10:24:24 (Show Source): You can put this solution on YOUR website!1. 2. 3. Subtract eq. 3 from eq. 1, Add that to eq. 2, Then from eq. 1, From eq. 3,
 Equations/346093: solve: sqrt(3-x)= -4 If you can could you also include you how you found the answer.1 solutions Answer 247477 by Fombitz(13828)   on 2010-09-21 10:19:02 (Show Source): You can put this solution on YOUR website! Square both sides.
 Percentage-and-ratio-word-problems/346091: if you borrowed money at 15% simple interet after paying it off in one year your finally payoff was \$1199.45 what was the original amount borrowed?1 solutions Answer 247476 by Fombitz(13828)   on 2010-09-21 10:17:43 (Show Source): You can put this solution on YOUR website! The original amount borrowed was \$1043.
 Rational-functions/346085: v/14 - v/49 = 1/14 solve what is the solution for v?1 solutions Answer 247475 by Fombitz(13828)   on 2010-09-21 10:16:30 (Show Source): You can put this solution on YOUR website! Multiply both sides by . Now solve for
 Exponents/346089: divide and simplify z^2 -81/ z divided by z-9/z+2 = 1 solutions Answer 247474 by Fombitz(13828)   on 2010-09-21 10:14:32 (Show Source): You can put this solution on YOUR website! . .
 Equations/346087: how many real solutions does x^4=7 have?1 solutions Answer 247473 by Fombitz(13828)   on 2010-09-21 10:12:34 (Show Source): You can put this solution on YOUR website!2 real solutions, and 2 complex solutions, and
 Exponents/346086: What is the answer for this: x^-2+y^-2/(xy)^-2 1 solutions Answer 247471 by Fombitz(13828)   on 2010-09-21 10:10:30 (Show Source): You can put this solution on YOUR website!You mean you want to simplify the expression? . . .
 test/345776: Please help solve a(x+b) = c; 2(x+1)=91 solutions Answer 247470 by Fombitz(13828)   on 2010-09-21 10:07:37 (Show Source): You can put this solution on YOUR website!I assume for x? . . . . . .
 Exponential-and-logarithmic-functions/345656: 25^10x+8=(1/125)^4-2x1 solutions Answer 247469 by Fombitz(13828)   on 2010-09-21 10:05:33 (Show Source):
 Inequalities/345800: Solve and graph the following inequality: 5-(x-3),131 solutions Answer 247468 by Fombitz(13828)   on 2010-09-21 10:02:10 (Show Source): You can put this solution on YOUR website!Your inequality is incomplete. Please repost.
 Expressions-with-variables/345731: Find the LCM of 16x^2 y^5 z^4 and 21xy^3z^21 solutions Answer 247467 by Fombitz(13828)   on 2010-09-21 10:01:17 (Show Source): You can put this solution on YOUR website! Now find the factors in common and the largest exponent in common.
 Linear-equations/346082: How do I find the intersecting points of y=.15x and y=.2(x-20). do I set my problem up like .15x=.2(x-20)1 solutions Answer 247465 by Fombitz(13828)   on 2010-09-21 09:58:58 (Show Source): You can put this solution on YOUR website!Yes, that's exactly how. Then once you find , use either equation to solve for
 Travel_Word_Problems/345703: An airplane flying at 450 miles/hr due south experiences a westerly wind of 75 miles/hr. What is the actual velocity?1 solutions Answer 247464 by Fombitz(13828)   on 2010-09-21 09:58:13 (Show Source): You can put this solution on YOUR website!Let North be positive , East be positive . The plane is traveling (,). The wind is blowing (,). The actual plane velocity is, (,)+(,)=(,) . . . mph . . . degrees West of South.
 Graphs/345691: find the slope for a line that passes through the points (-1,6) and (4,10).1 solutions Answer 247463 by Fombitz(13828)   on 2010-09-21 09:51:54 (Show Source): You can put this solution on YOUR website! Complete the calculation for the final answer.
 Distributive-associative-commutative-properties/345697: 2(5x-1)=3(x+11)1 solutions Answer 247462 by Fombitz(13828)   on 2010-09-21 09:49:26 (Show Source): You can put this solution on YOUR website! . . . Verify, True, good solution.