Questions on Algebra: Exponents and operations on exponents answered by real tutors!

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 Algebra: Exponents and operations on exponents Solvers Lessons Answers archive Quiz In Depth

 Question 89306: multi-step equations with fractions and decimals. 1.- 0.7n - 1.5 + 7.3n= 14.5 2.- 16.3k + 19.2 + 7.5k= -64.1 Click here to see answer by malakumar_kos@yahoo.com(315)

 Question 89817: How do you determine the units digit of 3 to the 99th power??? Click here to see answer by scott8148(6628)

 Question 90542: please show how to simplify 1. 16^1/5*64^1/5 2. 7^4/5 over 7^1/3 3. (10^3/4 * 4^3/4)^-4 4. 1 over x^-2/3 5. (xy^4/5)^2/3 I am so lost and help with any of the above problems will be greatly appreciated LLO Click here to see answer by jim_thompson5910(28715)

 Question 90915: Use the rational exponent equation L=2.43*W^0.3326 to estimate the wingspan L in feet of the bird that weighs W pounds. My bird weighs 2 1/3 ozs. L=2.43*2.33^0.3326 L=3.22 What? It is supposed to be feet. However, a robin, a bird that weighs 2 1/3 ozs, can not have a wing span of 3.22 feet? What am I doing wrong? Please help? Click here to see answer by stanbon(57967)

 Question 91187: (x+x/2+x/4=10. I found the common denominator of 2&4,which was 4. x+2x+1x=10.I'm lost now Click here to see answer by ankor@dixie-net.com(15746)

 Question 91717: Need help with the following - Thank you 160^1/2 - 10^1/2 -7x^3/5 - 8x^3/5 thanks llo Click here to see answer by jayanthihemkos@yahoo.com(87)

 Question 91864: simplify assuming that the solution isnt undefined (a^2 b^3/c)^0??? i havent got the slightest clue can someone help me please????? Click here to see answer by stanbon(57967)

 Question 92440: Name a number that when squared is equal to itself. Click here to see answer by anraymer(35)

 Question 92496: Simplify 48p5q3/6p3q 48p(fifth power) q (third power) 6p(third power) q Click here to see answer by jim_thompson5910(28715)

 Question 93064: Explain why 1 raised to any power is equal to 1. Click here to see answer by tutorcecilia(2152)

 Question 93065: An aquarium has a square base with a side lenght of 15 inches. You fill the aquarium with water to a height of 15 inches. a. Find eh volume of the water in the aquarium. b. A cubic inch of water weighs approximately 0.036 pound. Find the approximate weight of he wqter in the aquarium. Click here to see answer by Nate(3500)

 Question 93262: Divide 4d exponent 9 m exponent 6 * 10d exponent 9 m exponent 6 __________________________________________________________ 2d exponent 9 m exponent 9 Click here to see answer by jayanthihemkos@yahoo.com(87)

 Question 93434: pre-algebra: 4! - 4^2 - 4 = ? Click here to see answer by psbhowmick(529)

 Question 93449: What is the greatest three-digit integer that has a factor of 10? Click here to see answer by checkley75(3666)

 Question 93711: binomial squared to multiply: (6x+5)exponent2 my work: (6x+5)(6x+5)= 36xexponent2 + 30x + 30x + 25= 36xexponent2 + 60xexponent2 + 25= 96xexponent4 + 25 Click here to see answer by Earlsdon(6294)
 Question 93711: binomial squared to multiply: (6x+5)exponent2 my work: (6x+5)(6x+5)= 36xexponent2 + 30x + 30x + 25= 36xexponent2 + 60xexponent2 + 25= 96xexponent4 + 25 Click here to see answer by jayanthihemkos@yahoo.com(87)

 Question 93261: Divide 4d exponent 9 m exponent 6 * 10d exponent 9 m exponent 6 __________________________________________________________ 2d exponent 9 m exponent 9 Click here to see answer by bucky(2189)

 Question 93979: I think this is the right topic, but i am not sure. If you could please help me, that would be great. i really appreciate this. My math worksheet says to simplify- No variable represents a value that would make the expression meaningless. 1. (32x^1/2)^2/5 Thank you so much. God bless. Click here to see answer by ankor@dixie-net.com(15746)

 Question 94035: lol im really stupid will u hlep me with pre algabra Click here to see answer by praseenakos@yahoo.com(507)

 Question 93982: I think this is the right topic, but i am not sure. If you could please help me, that would be great. i really appreciate this. My math worksheet says to simplify- No variable represents a value that would make the expression meaningless. The problem looks a little confusing, so I will explain. The equation reads... (3 over x) plus (1 over x^2) all over (9 over 1) minus (1 over x^2)all of this times (x^2 over x^2). i had to put random dots inbetween all of the numbers because it squished the problem together without something there. I hope this makes sense, thanks. 3....1 -.+.--- x...x^2.....x^2 -------.X.---- 9.....1......x^2 --.-.--- 1....x^2 Thank you so much. God bless. Click here to see answer by stanbon(57967)

 Question 94347: Identify the base and the exponent in the expression 13to the 5th. power. Click here to see answer by stanbon(57967)

 Question 94337: To save money for a video game, you put one dollar in an envelope. Each day for 5 days you double the number of dollars in the envelope from the day before. How much have you saved after 5 days? Click here to see answer by checkley71(8403)

 Question 94450: in 2000, the government collected approximatly \$1.9 trillion in taxes. What is the per capita tax burden or the amount that each U.S. citizen paid in taxes? When 10 to the 12 power is one trillion and the popuation in the U.S. is 2.8 time 10 to the 8th power. Round to the nearest hundred dollars. Click here to see answer by stanbon(57967)

 Question 94476: Can you help me with this problem?.. Using ths formula d=rt, A Train travels at a rate of 75 miles per hour for 2 hours? Click here to see answer by tutorcecilia(2152)

 Question 94520: Rewrite the expression using positive exponents: 5AB^-2 Thanks! Click here to see answer by stanbon(57967)

 Question 94444: What does it mean to raise a number to a power? Click here to see answer by checkley71(8403)

 Question 94556: This is a table so it's tricky typing out in words... There are 4 rows and 4 columns, and I need to fill in the blanks. The first column is labeled POWER. The first row in the first column says 2^5. The fourth row in the first column says r^8. The second column is labeled BASE. The second row in the the second column says 3. The third column is labeled EXPONENT. The second row in the third column says 4. The fourth column is labeled STANDARD FORM. The third row in the fourth column says 125. phew... Okay, if you understood that, and if I'm correct, the entire first row should read: 2^5, 2, 5, 32. The second row should read: 3^4, 3, 4, 81. I have no idea about the third row. The last row should read: r^8, r, 8, r^8? I'm really sorry that was so long and confusing, but I just can't get that third row! Click here to see answer by Earlsdon(6294)

 Question 94698: why does a negative times a negative equal a positive like: Simplify -2(5m-3) -10m(6) right? i was using the distributive propety Click here to see answer by stanbon(57967)
 Question 94698: why does a negative times a negative equal a positive like: Simplify -2(5m-3) -10m(6) right? i was using the distributive propety Click here to see answer by edjones(7569)

 Question 94834: If = , what is x in terms of y? Click here to see answer by edjones(7569)

 Question 94861: How do I solve this word problem? Astronomical Unit: Earth's mean distance from the sun is 9.3 x 10 exponent 7 miles. This distance is called the astronomical unit (AU). Jupiter is 5.2 AU from the sun. Find the distance in miles from Jupiter to the sun. Click here to see answer by stanbon(57967)

 Question 94862: How do I solve this word problem? National Debt: In December of 2005, the U.S. national debt was approximately 8.1 x 10 with exponent 12 dollars. At that time, the population of the U.S. was 2.98 x 10 with exponent 8 people. In December of 2005, what was the U.S. debt per person? Click here to see answer by checkley71(8403)

 Question 94858: how is this problem solved? [1/8] with exponent of -4/3 Click here to see answer by checkley71(8403)