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

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Algebra: Negative and Fractional exponents

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Question 192931:
For f(x) = 2x - 11, find f(2)

Click here to see answer by checkley77(7072)

Question 192940: Simplify and evaluate:
(x3 y-4/5x6 y-8 z0)3

Click here to see answer by stanbon(26297)

Question 193179: what is 10 to the power of negative four?
Click here to see answer by Mathtut(3670)

Question 193267: Evaluate 2^-2 x 2^4 x 2-^3
Click here to see answer by jim_thompson5910(13794)

Question 194579: When working with exponents, is there any difference in operations if the exponents are whole numbers or fractions? In what sense do exponents and radicals behave exactly the same way? Provide examples
Click here to see answer by stanbon(26297)

Question 195424This question is from textbook McDougal Littell Algebra 2

: what is the answer to- x^1/3-2/5=0?This question is from textbook McDougal Littell Algebra 2

Click here to see answer by windsolace(8)

Question 195530: Can you show me step by step how to solve this?
8^-5*8^7
________
8^2

Click here to see answer by jim_thompson5910(13794)

Question 196379This question is from textbook totalblonde6@hotmail.com

: can you please help me determine how many x-intercepts the parabola has and weather its vertex liesabove or below or on the x-axis?(((y=x^2-5x+6)))This question is from textbook totalblonde6@hotmail.com

Click here to see answer by checkley77(7072)

Question 196382This question is from textbook algebra sturcture and method

: can you please help me solve by completing the square(((x^2-6x=16)))This question is from textbook algebra sturcture and method

Click here to see answer by checkley77(7072)

Question 196381This question is from textbook algebra structure and method

: can you please help me determine how many x-intercepts the parabola has and weather its vertex liesabove or below or on the x-axis?(((y=-x^2+2x-1)))This question is from textbook algebra structure and method

Click here to see answer by checkley77(7072)

Question 196377This question is from textbook algebra sturcture and method

: Please help me answer: (((In the equation ax^2+bx+c=0, the value of b^2-4ac is called the discriminant of the quadratic equation. What does the value tell you about the real roots of the equation?)))This question is from textbook algebra sturcture and method

Click here to see answer by solver91311(5072)

Question 196373This question is from textbook algebra structure and method

: Can you please help me solve the following by using the quadratic formula and leave irrational roots in the simplest radical form:2x^2-3x+1=0)))This question is from textbook algebra structure and method

Click here to see answer by josmiceli(3013)

Question 196370This question is from textbook algebra structure and method

: Can you please help me solve and leave in simplest radical form the following: (((x^2+8x= -16)))This question is from textbook algebra structure and method

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Question 196843: please help me solve (-3x^2-x-7) - (x^2+4x-9)
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Question 196843: please help me solve (-3x^2-x-7) - (x^2+4x-9)
Click here to see answer by Mathtut(3670)

Question 197952: Write the simplified form of
7^a+2 - 8(7^a+1) + 5(7^a) + 49(7^a-2)
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Question 197968This question is from textbook algebra structre and method

: can you please help me complete the square of: ((( x^2+12x+_____ )))This question is from textbook algebra structre and method

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Question 197969This question is from textbook algebra structure and method

: can you please help me complete the square of: ((( x^2-6x+____ )))This question is from textbook algebra structure and method

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Question 197970This question is from textbook algebra structure and method

: can you please help me solve by completing the square of ((( 2x^2-3x+1=0 )))This question is from textbook algebra structure and method

Click here to see answer by solver91311(5072)

Question 197971: can you please help me solve by completing the square ((( x^2-x-1=0 )))
Click here to see answer by solver91311(5072)

Question 198265This question is from textbook algebra stucture and method

: can you please help me complete the square of ((( x^2-6x+___ )))

is the answer.This question is from textbook algebra stucture and method

Click here to see answer by mathsteacher(28)

Question 198264This question is from textbook algebra stucture and method

: can you please help me solve by completing the square of ((( x^2-x-1=0 )))This question is from textbook algebra stucture and method

Click here to see answer by josmiceli(3013)

Question 198266This question is from textbook algebra sturcture and method

: can you please help me determine how many x-intercepts the parabola has and wether its vertex lies above or below or on the x-axis ((( y=x^2-5x+6 )))
------(1)
x intercept ==> y=0. So put y=0 in (1)
==>
==>
==> x={2,3}
So the parabola have two x intercepts.
Since the sign of x^2 is positive, the parabola has a minimum at its vertex.
Vertex is [-b/2a,f(-b/2a)]= (5/2,-1/4) So the vertex lies below the x axis.This question is from textbook algebra sturcture and method

Click here to see answer by mathsteacher(28)

Question 198267This question is from textbook algebra sturcure and method

: can you please help me slove and leave in simplest radical form((( x^2+8x=16 )))This question is from textbook algebra sturcure and method

Click here to see answer by josmiceli(3013)

Question 198268This question is from textbook algebra sturcture and method

: can you please help me answer ((( x varies directly as the square of s and iversely as t. How does x change when s is doubled? When both s and t are doubled? )))This question is from textbook algebra sturcture and method

Click here to see answer by Alan3354(6097)

Question 198377This question is from textbook Intermediate Algebra
: How do I solve this equationThis question is from textbook Intermediate Algebra

Click here to see answer by jim_thompson5910(13794)

Question 197948: Simplify:
(x^2y^3z^-2)^-3 (x^-3yz^3)^-1/2
_______________________________
(xyz^-3)^-5/2
Click here to see answer by arallie(162)

Question 198378: How would you simplify (1+(1/x))/(1-(1/x^2))?
Click here to see answer by jim_thompson5910(13794)

Question 198378: How would you simplify (1+(1/x))/(1-(1/x^2))?
Click here to see answer by arallie(162)

Question 198559: (1/9) ^ (-3/2)
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Question 198531: Simplify the expression: (14B^2-7B/12B^3+24B^2) / (2B-1/B^2+2B)
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Question 198583: if g(x)=3x squared-4x+1
What is the value of g(-2)?
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Question 198590: 16x^5y^-8/x^7y^4*(x^3y^2/8xy)^4
PLEASE HELP ME ASAP I HAVE A FINAL ON THIS TOMORROW AND IM SO CONFUSED AND MY TEACHER IS HELPLESS. PLEASE IM BEGGING!!
Click here to see answer by arallie(162)

Question 198756: Can you please help me simplify and please i really need help i have a test tomarrow and i still don't understand this stuff.
Click here to see answer by jim_thompson5910(13794)

Question 198535: Reduce the given complex fraction into simple fraction. (a-2/a+2) + (a-2) / (a) - (3a+12/a+2)
Click here to see answer by Edwin McCravy(2922)

Question 199304: hi, i had a question about negative exponents, how would i solve 1.6 multiplied by 10 to the negative 19.
Click here to see answer by rfer(2688)

Question 199304: hi, i had a question about negative exponents, how would i solve 1.6 multiplied by 10 to the negative 19.
Click here to see answer by stanbon(26297)

Question 199318: i need help for me to pass my course i need to find the answers to these
remove brackets and collect like terms for the following expressions
A) 5(2a-b)
B) (3x+2)-(4x-Y)
C) 3x(x+3)+x squared
D) (x+y)(x-2y)

Click here to see answer by stanbon(26297)

Question 199511: Simplify the product: (3cd^6)^2(cd)^5
[A]3c^3d^17 [B]3c^7d^17 [C]9c^7d^11 [D]9c^7d^17
Click here to see answer by rfer(2688)

Question 200924: The following function computes the cost, C (in millions of dollars), of implementing a city recycling project when x percent of the citizens participate. C(X)=1.4x/100-x
a)Using the model, find the cost if 60% of the citizens participate.
b)Using the model, determine the percentage of participation that can be expected if $4 million is spent on this recycling project. Set up an equation and solve algebraically. Round to the nearest whole percent.

Click here to see answer by josmiceli(3013)

Question 201778: On a practice test that I took it said that the equation of
A^-3 B^1/3 A^3/4 B^3 = B^10/9
-------
A^ 9/4
I want to know how that is the correct answer
Click here to see answer by edjones(3299)

Question 202571: -3b - 6 + 7b =6 what does B = ?
Click here to see answer by RAY100(1637)

Question 202827: Solve. (2x^2+3x-1)^2/3=4
Click here to see answer by stanbon(26297)

Question 204150: Please assist me by Simplifying without negative exponents: [xy^5/x^-4y^2]^-2
Click here to see answer by Alan3354(6097)

Question 204535: x^(-2)=16
Click here to see answer by nerdybill(2448)

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