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

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

Question 1144458: Please help me solve this

Click here to see answer by ikleyn(52818)

Question 1144456: Please help me solve
-5/2 - (-2/9)
Click here to see answer by MathTherapy(10555)

Question 1144456: Please help me solve
-5/2 - (-2/9)
Click here to see answer by ikleyn(52818)

Question 1144456: Please help me solve
-5/2 - (-2/9)
Click here to see answer by Alan3354(69443)

Question 1147572: how do you write 12^-3 with a positive exponent
Click here to see answer by ikleyn(52818)

Question 1151794: x rise to the power of 2 ± x minus 3 equals 0
Click here to see answer by MathLover1(20850)

Question 1151794: x rise to the power of 2 ± x minus 3 equals 0
Click here to see answer by ikleyn(52818)

Question 1151987: what is 7 to the -2 power

Click here to see answer by Theo(13342)

Question 1151987: what is 7 to the -2 power

Click here to see answer by Alan3354(69443)

Question 1152124: How to solve (2/3)^-2
Click here to see answer by Theo(13342)

Question 1152502: I need help on and with these problems if you could help that would be wonderful
8^0 * 2^-3
(2^3)^-2
(6^-1)^2
x^-8
3x^-5
Click here to see answer by josgarithmetic(39621)

Question 1152502: I need help on and with these problems if you could help that would be wonderful
8^0 * 2^-3
(2^3)^-2
(6^-1)^2
x^-8
3x^-5
Click here to see answer by MathLover1(20850)

Question 1152502: I need help on and with these problems if you could help that would be wonderful
8^0 * 2^-3
(2^3)^-2
(6^-1)^2
x^-8
3x^-5
Click here to see answer by Theo(13342)

Question 1154315: what is 1/8 with of exponent of -3
Click here to see answer by josgarithmetic(39621)

Question 1154315: what is 1/8 with of exponent of -3
Click here to see answer by ikleyn(52818)

Question 1154433: x 1 2 3 4
y 162 108 72 48

find exponential expression

Click here to see answer by greenestamps(13203)

Question 1154457: (8x1/2y^3)1/3 * (25xy1/2)1/2
Click here to see answer by greenestamps(13203)

Question 1154462: (8x^(1/2)y^3)^(1/3)•(25xy^(1/2))^(1/2)
Click here to see answer by Edwin McCravy(20060)

Question 1154462: (8x^(1/2)y^3)^(1/3)•(25xy^(1/2))^(1/2)
Click here to see answer by MathLover1(20850)

Question 1154635: A homeowner estimates that it will take him 8 days to roof his house. A professional roofer estimates that he could roof the house in 5 days. How long will it take if the homeowner helps the roofer?
Thank you!
Click here to see answer by josmiceli(19441)

Question 1154903: what is 5 to the -2 power
Click here to see answer by ikleyn(52818)

Question 1155569: Divide the following number using scientific notation:
(4 x 102)
_________
(1 x 10^3)
Simplify:
(2/5x^2)^3
Thank you

Click here to see answer by josgarithmetic(39621)

Question 1155922: What does 5 to the negative 1 power equal?
Click here to see answer by josmiceli(19441)

Question 1155922: What does 5 to the negative 1 power equal?
Click here to see answer by MathLover1(20850)

Question 1155922: What does 5 to the negative 1 power equal?
Click here to see answer by Edwin McCravy(20060)

Question 1157180: I need help with this
(1/27 x 1/8 ) - 1/3
Thank you so much
Click here to see answer by MathLover1(20850)

Question 1158675: Can this be solved?
x=3(.49-.7)^(5/2)
Click here to see answer by MathLover1(20850)

Question 1164419: Given that 5^n=K, find 5^n+1 in terms of K.
Please show clear solution.
Click here to see answer by Alan3354(69443)

Question 1165936: How to find the simultaneous equations
x+y=-4
x+2-1=0
y+z+1=0
Click here to see answer by ikleyn(52818)

Question 1166242: Two to the power of Negative three in simplest form

Click here to see answer by Alan3354(69443)

Question 1167157: -3(x+2x-4) can you simplify that
Click here to see answer by josgarithmetic(39621)

Question 1169866: Which of the following expressions is equivalent to -2(3x + 5)?
Click here to see answer by greenestamps(13203)

Question 1175030: Consider a population that grows according to the recursive rule Pn = Pn-1+60, with initial population Po=60.
Then
P1=
P2=
Find an explicit formula for the population. The formula should involve n (lower case n)
Pn=
Use the explicit formula to find P100
P100=
Click here to see answer by ikleyn(52818)

Question 1175031: A population of beetles are growing according to a linear growth model. The initial population (week 0) is Po =3, and the population after 5 weeks is P5 =23.
Find the explicit formula for the beetle population after n weeks.
Pn =
After how many weeks will the beetle population reach 99?
Click here to see answer by ikleyn(52818)

Question 1175037: A population grows according to an exponential growth model, with Po =20 and P1 = 24
Pn=______xPn-1
Explicit formula for Pn
Pn=______
Click here to see answer by ikleyn(52818)

Question 1175055: Consider a population that grows according to the recursive rule Pn=Pn-1+95, with a initial population Po=40.
Then:
P1=
P2=
Explicit formula for the population. The formula should involve n (lower case n)
P2=
Explicit formula to find P100
P100=
Click here to see answer by ikleyn(52818)

Question 1175053: A population grows according to an growth model, with Po =60 and P1 =66
Find the recursive formula:
Pn=_____ Pn-1
Explicit formula for Pn
Pn=_____

Click here to see answer by ikleyn(52818)

Question 1175054: Assume there is a certain population of fish in a pond whose growth is described by the logistic equation. It is estimated that the carrying capacity for the pond is 1500 fish. Absent constraints, the population would grow by 200% a year.
If the population is given by po=600, then after one breeding season the population of the pond is given by
p1=
After two breeding seasons the population of the pond is given by
p2=
Click here to see answer by Theo(13342)

Question 1175117: A population grows according to an exponential growth model. The initial population is Po=14, and the growth rate is r=0.4.
Find the explicit for Pn. The formula should involve n.
Pn=
Click here to see answer by ikleyn(52818)

Question 1175035: A population grows according to an exponential growth model. The initial population is Po = 14, and the growth rate is r = 0.4.
Then:
P1=
P2=
Find an explicit formula for Pn. The formula should involve n.
Pn=2
Use the formula to find P11
P11=
Accurate to at least 1 decimal point

Click here to see answer by Theo(13342)

Question 1175151: A population growing according to an exponential growth model. The initial population is Po = 17, and the common ratio is r = 1.15.
P1=
P2=
Explicit formula for Pn. Formula must include n.
Formula to find P12.
Accurate to at least one decimal.
Click here to see answer by ikleyn(52818)

Question 1175184: Assume that a certain population of fish in a pond whose growth is described by the logistic equation. It is estimated that carrying capacity for the pond is 1300 fish. Absent constraints, the population would grow by 190% per year. If the starting population is given by po = 200, then after one breeding season the population of the pond is given by
P1 =
After two breeding seasons the population of the pond is given by
P2 =
Click here to see answer by ewatrrr(24785)

Question 1175846: A sequence is a function. What is the domain and range of the following sequence? What is r?
-12, 6, -3, 3/2, -3/4
Click here to see answer by ewatrrr(24785)

Question 1175846: A sequence is a function. What is the domain and range of the following sequence? What is r?
-12, 6, -3, 3/2, -3/4
Click here to see answer by MathTherapy(10555)

Question 1093997: Write down the restriction(s) and solve for x: 5/6-3/2x=3/x-2/3
Click here to see answer by CubeyThePenguin(3113)

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