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

Tutors Answer Your Questions about Exponents-negative-and-fractional (FREE)

Question 32762: (y+3)5/2=32

Click here to see answer by checkley71(8403)

Question 32796: I'm having troubles with simplifying exponential expressions. Can you help me. The first problem is 4(4-2)=?
Click here to see answer by mukhopadhyay(490)

Question 32668: I dont understand
1.10^t = 1.4641 (1.10to the power of t (^=power of))
Click here to see answer by kietra(57)

Question 32988: I am getting confused with negative signs. I've worked this problem several times but keep getting +3, but the answer is supposed to be 1/3. What am I doing wrong? Rebecca
-2x-4(x-2)=3x+5
I used distributive property for the -4, multiplying it by both the x and the -2. ??????
Click here to see answer by Earlsdon(6294)

Question 33010: i need 81^7/4 power simplified
Click here to see answer by stanbon(57984)

Question 33011: write each expression in radical form and simplify 17^5/4
Click here to see answer by stanbon(57984)

Question 33011: write each expression in radical form and simplify 17^5/4
Click here to see answer by xcentaur(357)

Question 32989: x^2/y^2-3x^2y^-2+4x^-3x^5y^-2-8y^-2/x^-2
I've tried this several times and keep getting -6x^2/y^2 but the answer is supposed to be -6x^2y^-2
Why does Saxon bring the y^2 up and make it a negative exponent?
Thank you for helping me understand this.
Rebecca
Click here to see answer by longjonsilver(2297)

Question 33386: HOW DO I SOLVE THIS PROBLEM 4 TO THE 3/4 POWER.
Click here to see answer by longjonsilver(2297)

Question 33229: 4)For a fixed rate, a fixed principal amount, and a fixed compounding cycle, the return is an exponential function of time. Using the formula, , let r = 10%, P = 1, and n = 1 and give the coordinates (t, A) for the points where t = 0, 1, 2, 3, 4.
a)Show coordinates in this space
Show work in this space

b)Show graph here

5)Logarithms:
a)Using a calculator, find log 10000 where log means log to the base of 10.
Answer:

b)Most calculators have 2 different logs on them: log, which is based 10, and ln, which is based e. In computer science, digital computers are based on the binary numbering system which means that there are only 2 numbers available to the computer, 0 and 1. When a computer scientist needs a logarithm, he/she needs a log to base 2 which is not on any calculator. To find the log of a number to any base, we can use a conversion formula as shown here:
Using this formula, find .
Answer:
Click here to see answer by venugopalramana(3286)

Question 30954: Please help me solve:
{16x^3y/-4xy^3}*{2xy/-x^-1}
My progress: {16x^3y/-4xy^3}*{2xy/-x^-1} = {-4x^2/y^-2}* {{2xy * -x}/1}
= {-8x^3y *-x}/y^-2
= ???
Click here to see answer by kietra(57)

Question 34279: how do you make this a negative exponents 7/cd

Click here to see answer by stanbon(57984)

Question 34338: simplify the complex fraction
(1-)(3/y+1)/(3+)(1/y+1)
Click here to see answer by Nate(3500)

Question 34515: x^2-x x^2+2x
_______ / ______
x^2+3x+2 x^2-1
Click here to see answer by Cintchr(481)

Question 34605: I've worked this and get 89/36 but answer is supposed to be 71/36...???
Problem: -(-2)-(-2^-2)-[(-2)(3^-2)]
I get 2 +1/4 - (-2/9)
2 * 1/4 + 2/9
72/36 + 9/36 + 8/36 = 89/36
Where did I go wrong?
Rebecca
Click here to see answer by benni1013(197)

Question 35504: I need help with this ....please!!!!
(5^-1+x^-1)/(x^2-25^-1)
Click here to see answer by Nate(3500)

Question 35504: I need help with this ....please!!!!
(5^-1+x^-1)/(x^2-25^-1)
Click here to see answer by Prithwis(166)

Question 36174: What is 3g^2+g+1 factored.
Click here to see answer by stanbon(57984)

Question 36871: for rule of exponent for division solve following problems
1. 1ob/25b^5
2.p^2q^3/p^3q^2
3.24b^3/12b^2
4.ab^3/a^5b
5.24q^2qr/36pr^3
Click here to see answer by checkley71(8403)

Question 36876: What is simplified?
Click here to see answer by Alwayscheerful(414)

Question 37022: Solve (q+4)(3q-15)= 0
Click here to see answer by jcmtnez(53)

Question 37127: 27^2/3
Click here to see answer by AnlytcPhil(1278)

Question 37127: 27^2/3
Click here to see answer by josmiceli(9819)

Question 37341: 1 1 3 ——————— + ——————— = ————————— t - 1 t + 2 t² + t^-2 Please help me figure out this problem. I think it may have no solution.

Click here to see answer by AnlytcPhil(1278)

Question 37877: solve for x: (2/5x)-(4/3x)=3
Click here to see answer by fractalier(2101)

Question 37935: 7. Evaluate 3/4 times 6 /7and reduce to simplest form.

A) 18/28 B) 1 C) 3/7 D) 9/14

Click here to see answer by checkley71(8403)

Question 38867: x^-2 - 9x^-1+18=0
^-2= the -2 as the expontent
the same goes for ^-1
Click here to see answer by longjonsilver(2297)

Question 39104: x*(x^2+1)^(1/2)
Click here to see answer by fractalier(2101)

Question 39584: If there are 6 x 10^9 people on the Earth and there is enough freshwater to provide each person with 8.79 x 10^5 L, how much freshwater is on the Earth?
Click here to see answer by Nate(3500)

Question 40131: What does equal if ?
Click here to see answer by Nate(3500)

Question 40126: The process or writing a quadratic equation in the form of is called what?
Click here to see answer by checkley71(8403)

Question 40133: Three times the mystery number was increased by 100, and the result was 12 less than the number. What is the mystery number?
Click here to see answer by checkley71(8403)

Question 40152: Write an example of a quadratic equation. Can you give me an example please?
Click here to see answer by abcdefg(37)

Question 40282: Simplify and and answer with positive exponents only.
[(-12x^5y^-4)/(3x^-2y)]^-2
x to the power of 5, y to the power of negative 4, 3 to the power of negative 2, y to the power of one
everthing in brackets to the power of negative 2
Click here to see answer by stanbon(57984)

Question 40145: Find the three consecutive even integers for which 3 times the largest is twice the sum of the two smaller integers. What is the answer to that question?
Click here to see answer by fractalier(2101)

Question 9320: (7+q)to the 0 power=?
Click here to see answer by Nate(3500)

Question 40828: How would you write (-3x)^-2 using positive exponents and simplified?
Click here to see answer by fractalier(2101)

Question 40827: Find the value of the polynomial x^3-4x when x=-2
Is the answer 0
Click here to see answer by fractalier(2101)

Question 40826: (a^8b^10)^3
Is the solution a^24b^30
Click here to see answer by fractalier(2101)

Question 40825: (m^4)^3(m^2)^9
__________________
(m^3)^2
How would that fraction be simplified? Please note that the problem is a fraction.
Click here to see answer by fractalier(2101)

Question 40885: how do i solve this problem x/2 -3x/4 =6???

Click here to see answer by checkley71(8403)

Question 40963: Please help me solve this equation
Click here to see answer by fractalier(2101)

Question 40988: I'm trying to figure out a problem that I have in my math book. The problem is (-32)to the (1/5) power. Can someone help me?
Click here to see answer by checkley71(8403)

Question 41135: Find the lenght of x in simplified radical form: the triangle has three sides, 51 ft., 45 ft., and x. Is the answer 24 ft?
Click here to see answer by fractalier(2101)

Question 41132: Simplify the square root of 7/100.
Is it the square root of 7 over 10?
Click here to see answer by fractalier(2101)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520