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

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

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(75887)

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(6550)

Question 40828: How would you write (-3x)^-2 using positive exponents and simplified?
Click here to see answer by fractalier(6550)

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(6550)

Question 40826: (a^8b^10)^3
Is the solution a^24b^30
Click here to see answer by fractalier(6550)

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(6550)

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(6550)

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(6550)

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(6550)

Question 41129: 3/4 / 4/5
Three fourths divided by four fifths. Is it 3/5?
Click here to see answer by fractalier(6550)

Question 41126: Solve x^2=-6x
SI the answer 6, -6?
Click here to see answer by fractalier(6550)

Question 41133: Simplify: a to the square root of 8 - 3 to the square root of 2a^2
Click here to see answer by fractalier(6550)

Question 41152: solve by factoring:

Click here to see answer by zeynep(43)

Question 41145: Someone please help me solve these two problems!!!Please!
Section a.
A jar contains 13 black and 12 red marbles. If one marble is drawn at random, what is the probability that it is black?
Section b.
If two marbles are drawn randomly from the jar in section a., what is the probability that the first is red and the second is black if the marbles are drawn....
a.with replacement?
b.Without replacement?
Click here to see answer by mszlmb(115)

Question 41150: Can someone help me?
Click here to see answer by PaulAllen65270(19)

Question 41148: Solve by the quadratic formula. What is the answer?
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Question 41499: I need help, The U.S. population in 1990 was approximately 250 million, and the average growth rate for the past 30 years gives a doubling time of 66 years. The formula for the U.S. is
p(in millions)= 250 x 2^(y-1990)/66

What will the population of the United States be in 2025 if this growth rate continues?
I get to the point of being able to substitute y for 2025 but when I subtract 2025-1990 and then divide by 66 I get .9848484848 and so on. I'm not sure what to do at this point. Can you help me figure this out.
Click here to see answer by stanbon(75887)

Question 41464: (-2/3)+p=1/6
show work
Click here to see answer by zeynep(43)

Question 41547: I need to solve for x
5(x - 3/4)
I have no clue how to do this
Click here to see answer by AnlytcPhil(1807)

Question 41768: 27^3n-1 = 81^ -n
Click here to see answer by longjonsilver(2297)

Question 41871: I am finishing high school from home. My school name is penn foster.
my questions is
reduce fraction w squared +5w+6 over w squared-w-12
Click here to see answer by longjonsilver(2297)

Question 41870: I am doing school from home. The name of my school is penn foster.
Reduce fraction 6x/12x to lowest terms.
My answer was 1/2 but was not right.
Click here to see answer by fractalier(6550)

Question 42009: divide 40x by 5x over 64y by 8y
home school. education direct
my answer 25x over 64y
Click here to see answer by checkley71(8403)

Question 42011: home school. education direct
r+5 by r squared+4r-21 over
______________________
r squared+5r-14 by r-2
Click here to see answer by Fermat(136)

Question 42281: a to the -5 times b to the 4 times c to the -2 times d. how do i rewrite this using positive eponents?
Click here to see answer by tutorcecilia(2152)

Question 41654: I saw a similar problem posted but am not sure of the solution to this one. Can someone help?
16^3/2
I got the answer as 6, because 16 = 4^4 and 4 times 3/2 = 12/2 =6 am I right? If not can someone please explain? Thanks.

Click here to see answer by Nate(3500)

Question 42750: Graph:
Click here to see answer by ichudov(507)

Question 42753: The amount of Apples (I) is inversely proportional to the amount of Potatoes (A).
section A. Write a general equation that summarizes this relationship.
Section B. When 52 pounds of Potatoes produces 13 pounds of Apples, what is the constant of proportionality?
Section C. How much Potatoes would be needed to produce 10 pounds of Apples?
Click here to see answer by Nate(3500)

Question 42787: Can you please help me simplify 1/(3)^-5 ? Thanks!
Click here to see answer by aaaaaaaa(138)

Question 42798: I need help with this problem 3A/7 = -2/5

Click here to see answer by fractalier(6550)

Question 42748: Someone please help me solve this!!!
Click here to see answer by fractalier(6550)

Question 42752: Solve.
Click here to see answer by PaulAllen65270(19)

Question 42749: solve and graph: , D={integers}
Click here to see answer by fractalier(6550)

Question 43148: what is 6 to the 0th power

6^0= ?
Click here to see answer by stanbon(75887)

Question 43203: 3/4x-1/2=1 solve as an equation
Click here to see answer by fractalier(6550)

Question 43360: xym-3ymx-4xmy-3my+2ym
Click here to see answer by fractalier(6550)

Question 43468: Can someone please help me on this one?
I have to simplify.
(-8)^-4/3
The 8 is to the -4/3 power. Does that make sense?
Thanks
Click here to see answer by aaaaaaaa(138)

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