# Questions on Algebra: Negative and Fractional exponents answered by real tutors!

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 Algebra: Negative and Fractional exponents Solvers Lessons Answers archive Quiz In Depth

 Question 220918: what is 2/3 to the negative 3 power Click here to see answer by edjones(7569)

 Question 222045: I need to sove for n and can't seem to get the same answer as the book. 9-2n/7=19 Click here to see answer by Alan3354(30993)

 Question 222836: I am writing a scientific notation problem the 34,500,000,000 and 72,500,000,000 my answer is 34.5x10^10 and 72.5x10^10 am I on the right track? Click here to see answer by Alan3354(30993)

 Question 223142: Suppose that the credit remaining on a phone card (in dollars) is a linear function of the total calling time (in minutes). When graphed, the function gives a line with a slope of -0.16 There is \$29.00 in credit remaining on the card after 25 minutes of calls. How much credit was there after 18 minutes of calls? Click here to see answer by stanbon(57387)

 Question 223315: negitive 5 and one third divided by 8 = Click here to see answer by checkley77(12569)
 Question 223315: negitive 5 and one third divided by 8 = Click here to see answer by rfer(12670)
 Question 223315: negitive 5 and one third divided by 8 = Click here to see answer by jsmallt9(3296)

 Question 224040: At 9:00 A.M. the temperature was -7 degrees fahrenheit. By noon, the temperature was 19 degrees fahrenheit. What was the change in temperature? I got either 12 degrees fahrenheit or 26 degrees fahrenheit. But I don't know which answer is correct. Do I do -7 + 19 or just 19 plus 7 because its the total change? Click here to see answer by Alan3354(30993)

 Question 224432: negative 16 and one third divided by (negative 2 and one third) Click here to see answer by Alan3354(30993)

 Question 224518: 1 and five sevenths minus 3 and one seventh Click here to see answer by checkley77(12569)

 Question 224567: (3x/(1/x-5))-1exponent what is the answer for 3x over 1/x-5 multiplied to the -1 power , how do you solve. Click here to see answer by Earlsdon(6287)

 Question 224856: If the negative sign is outside of the absolute value what do I do to solve the problem. -|x|>8 Click here to see answer by checkley77(12569)
 Question 224856: If the negative sign is outside of the absolute value what do I do to solve the problem. -|x|>8 Click here to see answer by MathTherapy(1425)

 Question 225407: what is 1 over 3, 4, 4 32 over 181 Click here to see answer by solver91311(16897)

 Question 225469: You are picking up your friend and going to a concert. Your friend lives three miles west of your house and the concert is 21 miles east of your friends house. When you are at the concert how far away from home are you? Click here to see answer by checkley77(12569)

 Question 225857: If a certain number is addedto the numerator and denminator of 7/15, the result is 1/3, find the number? Click here to see answer by ankor@dixie-net.com(15660)

 Question 227149: Factor the expression into a product of two binomials. s(s - 10) + 5(s - 10) Click here to see answer by ankor@dixie-net.com(15660)

 Question 227151: Factor completely. If the polynomial is prime, state this. 5p4q4 - 180 Click here to see answer by user_dude2008(1861)

 Question 228580: What is the sketch of y = (-2)^x on a number plane? My graphics calculators are showing different solutions or no solutions. -.- Click here to see answer by Alan3354(30993)

 Question 229270: please explain in detail how this problem is figured out I am a visual learner so I'm lost on the step by step process (c^4/d^3)^-4 I understand it became c^-16/d^-12 but why and how did the solution become d^12/c^16 Click here to see answer by Alan3354(30993)

 Question 229584: Trying to figure out this problem: f(x)=6434x to the -4/3 power. x=18 I try 1/18 x 4/3 and get 13.5. That times 6434 = 86859, which is NOT the correct answer! Please help! Thank you very much!!!! Steve Click here to see answer by ankor@dixie-net.com(15660)

 Question 229962: (x ^ 3 / y ^ 3 z ^ 5) ^ 2 The answer I got is: x ^ 6 / y ^ 6 z ^ 10 Is this correct? Click here to see answer by edjones(7569)

 Question 229967: 3 X (4 - 1) ^ 3 + 9 / 3 + (6 - 4) ^ 2 The answer I got is: 34 Is this correct? Click here to see answer by rfer(12670)

 Question 230677: what would be derivative for AC= 100Q to the negative 1 exponent + 2 + .5X My question is how to treat the 100Q to the negative 1 exponent Click here to see answer by rfer(12670)