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

Tutors Answer Your Questions about Exponents (FREE)

Question 224018: Write each fraction as an expression using a negative exponent other than -1? 1/100 need help please.
Click here to see answer by rapaljer(4667)

Question 224256: how to solve 8 and 1/3cubes
Click here to see answer by rapaljer(4667)

Question 224683: The standard dose of medicine for a dog is 10 grams for every15 pounds of body weight. Whatis the standard dose for a dog that weighs 80 pounds?
Click here to see answer by checkley77(12569)

Question 224837: What's the equivalent of the following: (-6)2/3
Click here to see answer by LtAurora(115)

Question 224865: when adding or multipling exponents such as (x^3a+6)^3 do you multiply the exponent of 3 on the outside of the parenthesis to the esponent of 6 thats in the parenthesis or just the exponent of 3 thats inside teh parenthesis?
Click here to see answer by checkley77(12569)

Question 224836: Simplify: (x^8/y^12)3/4
Click here to see answer by checkley77(12569)

Question 226059: If 2^r + 2^r + 2^r + 2^r = 26, what is the value of r?
Click here to see answer by nerdybill(6962)

Question 226059: If 2^r + 2^r + 2^r + 2^r = 26, what is the value of r?
Click here to see answer by solver91311(16897)

Question 226241: hi i have the following problem and i need to know how to the check for my problem; 5x+7=-8
=5x+7-7=-8 - 7
=5/5 = 15/5
=1x + -3
= x = -3
so how do i check this?t
thanks,
Kristi
Click here to see answer by jim_thompson5910(28595)

Question 226302: I am having trouble with the order of operations with this equation:
"Evaluate each expression when n=7.
10n^2-100
my sons answer: is 40
I dont know if this is right please help
Click here to see answer by scott8148(6628)

Question 226359: 16a^20b^8c^-6a^-12b^-4 over 80a^5b^20c^18

Click here to see answer by mathmontrealmath(2)

Question 226441: 5 = 7y
Click here to see answer by drj(1380)

Question 226564: 2x+3y=7
3x+4y=10
Click here to see answer by RAY100(1637)

Question 226719: I am having a really really hard time in pre-algebra. Everything my teacher tells me leaves me the minute i get home. Its so stressful all i do all day is homework and i cant take it any more i need some help...i cant freaking figure out how to multiply varibles and exponets plz answers this as soon as possible
Click here to see answer by rfer(12662)

Question 227396: the price of a home in medford was 100,000 in 1985 and rose to 180,000 in 2001.
create 2 models f(t) assuming linear growth and g(t) assuming exponential growth. where t=number of years after 1985. f(t)=? g(t)=?
Could somebody please help me solve this! Thanks, Mark
Click here to see answer by josmiceli(9686)

Question 227958: Hello,
I am having difficulty solving the problem below:
5^3(w) + 5^2(x) + 5y + z = 264.
What is the value of w + x + y + z.
Any help is much appreicated.
Click here to see answer by Alan3354(30993)

Question 228346: Hi,
A number to the 7th power divided by the same number to the 3rd power equals 256. What is the number?
I was able to get x^4=256, but have no idea how do go any further. Please help. Thank you.
Mel
Click here to see answer by jsmallt9(3296)

Question 228472: (x^2/y)^-2
Click here to see answer by rapaljer(4667)

Question 228472: (x^2/y)^-2
Click here to see answer by stanbon(57361)

Question 228475: 10. The length of a rectangle is 11ft longer than twice the width. If the perimeter is 118 ft, find the length and width of the rectangle.
Click here to see answer by stanbon(57361)

Question 228479: 7^(0)-9^(-1)= ?
Click here to see answer by rapaljer(4667)

Question 228606: What is the meaning of operation of exponents?
The laws of exponents itself deals with all the four operations addition, subtraction, multiplication and division.
So do we give the procedure to solve a problem involving exponents, if this topic (operation of exponents)is given as a part of the syllabus together with
laws of exponents.

Click here to see answer by rapaljer(4667)

Question 228755: one over h to the 5 = h to the n power
what does n equal?
Click here to see answer by Alan3354(30993)

Question 228876: solve the equation
4(2t + 5) - 21 + 7t - 6
10 + 5(z-2) = 4z + 1
4(5x + 3) = 2(7x + 6)

Click here to see answer by JenniferTutors(83)

Question 228988: How do you factor out 2x from 18x^2/3 * 8x^3/4? I tried to figure this out by looking at examples but none of them showed exponents that were smaller than the one on the number we are factoring out. I know that 2x = 2x^1. Thanks in advance.
Sandi
Click here to see answer by stanbon(57361)

Question 229016: (-4m^4)^2
The answer I got is:
16m^8
Is this correct?
Click here to see answer by JenniferTutors(83)

Question 229382: okay hello um well my question is if there is like parenthesis like (7x)2 seven "x" squared but the 2 is on the outside of the parenthesis would that change the answer or not?
problem: 3x to the fifth, times (-7x) squared but REMEBER the exponent is on the outside of the parenthesis!!!!!!!
so would the answer be -21x to the seventh or something else like (-21x) to the seventh or something?
Click here to see answer by ankor@dixie-net.com(15656)

Question 229500: if y=3 then y3(y3-y)=
Click here to see answer by rfer(12662)

Question 229500: if y=3 then y3(y3-y)=
Click here to see answer by anantha(86)

Question 229869: How do I write 0.04 in exponential form?
Click here to see answer by ly12603(44)

Question 230341: please solve:

Click here to see answer by rfer(12662)

Question 230614: Can u tell me what the answer of
1,000,000; base 10?
Click here to see answer by stanbon(57361)

Question 230722: Perform the operation and express the number in decimal form (without exponents)
(1.3 * 10^(-8)(1.74 * 10^(-6)
Click here to see answer by stanbon(57361)

Question 230723: 7. Perform the operation by first converting to scientific notation. WRite the answer in scientific notation.
150,000/0.0005
Click here to see answer by stanbon(57361)

Question 230727: 3. Subract (2x^(3)+4x^(2)-9x) from (-5x^(3)+4x-12)
Click here to see answer by stanbon(57361)

Question 230891: Find the exponential function (f(x))=a^(x) whose graph goes through the point (3,(1/125)).
Click here to see answer by user_dude2008(1861)

Question 230220: 2y^-2 -3y^-1 -2 =0

Click here to see answer by troymuga(3)

Question 231196: what is a^2b+a^2b?
Click here to see answer by user_dude2008(1861)

Question 231203: what is (2x+3y) (2x+y) {foil it} the back of the book says its 4x^2+8xy+3y^2 but idk why plz explain :)
the lesson is multiplying binomials
Click here to see answer by scott8148(6628)

Question 231278: 5a3(8a-6a)

Click here to see answer by texttutoring(324)

Question 231278: 5a3(8a-6a)

Click here to see answer by unlockmath(1602)

Question 231423: What operations are associated with coefficients
Click here to see answer by unlockmath(1602)

Question 231625: evaluate 100^(-1/2)
Click here to see answer by jsmallt9(3296)

Question 231692: 52 × 32 + 1
Click here to see answer by frosteeblu(4)

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