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

Tutors Answer Your Questions about Exponents (FREE)

Question 330462: (5^-9x5^7)^-2
Click here to see answer by Fombitz(13828)

Question 330376: 5(-4^-3)+(3^21)
Click here to see answer by Fombitz(13828)

Question 330556: What is 70 x 10 to the 6th power?

Click here to see answer by Fombitz(13828)

Question 330702: Rewrite the following expression with positive exponents. (42xy)^-4/5.
I came up with this: 1/(42xy)^4/5. Is this correct? Please advise. Thank you.
Click here to see answer by Fombitz(13828)

Question 330814: Which of the following is equal to 4^5 ?
I. 3^5 × 1^5
II. 2^10
III. 4^0 × 4^5
(A) I only
(B) II only
(C) I and II only
(D) II and III only
(E) I, II, and III
Click here to see answer by Fombitz(13828)

Question 331044: i need help understanding the process of simplifying the 6th root of x^4y^2
Click here to see answer by Alan3354(30975)

Question 331057: I don't understand how to work this problem:
3 to the 2nd power -4x3+4/ 9 to the 2nd power - 4
the workbook says the answer is 1/5
Click here to see answer by Alan3354(30975)

Question 331255: PROBLEM SOLVING
the speed of light is 186,000 miles per second. write the speed of light using scientific notation.
Click here to see answer by nerdybill(6948)

Question 331618: How do i solve this problem: 5+7[(6x7)-8]
Click here to see answer by rfer(12646)

Question 332009: how do i do this
Click here to see answer by unlockmath(1599)

Question 332109: Add

do I need to combine the like terms and just add them together or do I add the first problem then subtract the second.
please help I am really confused
Click here to see answer by Alan3354(30975)

Question 332144: 8^1/3
Click here to see answer by mananth(12270)

Question 332105: simplify. assume that no denominator is zero and that 0^0 is not considered

I need some help with this one I have no idea how to do it.
thank you
Click here to see answer by mananth(12270)

Question 332184: Four laborers arrived in town looking for work. They met with a buisness owner who said he could pay them for 200 hours of work. However, there was a catch. They could divide up the work anyway they wanted, but each laborer had to work the same number of days as he worked hours in one day. For example, if a laborer worked 8 hours a day, he had to work for 8 days. The other catch is that the laziest laborer did the negotiations with the buisness owner.
Click here to see answer by J2R2R(94)

Question 332866: A culture atarted with 6000 bacteria. After 4 hours, it grew to 7800 bacteria. Predict how many bacteria will be present after 18 hours. Round your answear to the nearest whole number.
I have to use the expoential formula which is N=NoE-kt
I dont really understand how to get the inc. or the answear if you could help it would be much appriciated
Click here to see answer by nerdybill(6948)

Question 332903: This is the mom. I am stuck on this problem. We need to know where to put the parentheses ( ). 3²+6+3x3=36 This is a 6th grade pre algebra question.
Thanks,
Jennifer
Click here to see answer by nyc_function(2733)

Question 332928: 7th grade pre-algebra problem: The African bush elephant is the largest land animal and weighs about 8 tons. Write this amount in exponential form.
Thank you. I've worked out an answer but don't want to lead my 7th grader astray.
Click here to see answer by benazir.sj@gmail.com(109)

Question 332719: how do you write 15 to the first power and what is the meaning
Click here to see answer by ankor@dixie-net.com(15628)

Question 332865: How do you answer this equation
If f(x) = x4-x+2, then f(-x)=
Click here to see answer by checkley77(12569)

Question 332826: (2.5 × 102) × (5.5 × 103)

Click here to see answer by Alan3354(30975)

Question 333152: my question is when dividing exponenet how do you nknow if the answer is a fraction or just like ths
example 4b or 4/b
Click here to see answer by nyc_function(2733)

Question 333282: What is (-2)WITH AN EXPONENT OF 4.And how do you slove it?
Click here to see answer by mananth(12270)

Question 333320: How do we sum 1 to 100 ?
Click here to see answer by benazir.sj@gmail.com(109)

Question 333459: A school has a telephone system for letting parents know about emergency school closing. The system is a pyramid with five layers. Three parents are on top layer of the pyramid. Each parent in each layer calls three different parents. How many parents are in the chain?
Click here to see answer by jrfrunner(365)

Question 333804: The exponent in the product is the ________ of the exponents of the two factors.
Click here to see answer by rfer(12646)

Question 333876: 5x2+34x+24
Click here to see answer by Alan3354(30975)

Question 333876: 5x2+34x+24
Click here to see answer by checkley77(12569)

Question 333908: 60=[400/(1+r)^3]
Click here to see answer by stanbon(57228)

Question 333835: I need help simplifiying this fraction sqrt(15^2)/ 3^2.
I do not understand the step I need to take to work this problem out. Please help.
Click here to see answer by checkley77(12569)

Question 334005: Replace each of the variables a, b, and c with a different digit selected from the set {2, 3, 5, 6, 8}. What is the greatest possible value of the expression that is less than 100?
Click here to see answer by Edwin McCravy(8880)

Question 334378: d^1/3 * d^7/3 Simplify
Click here to see answer by rfer(12646)

Question 334390: how to find the volume of a cube that is 5 to the 3 cubic cent. without using exponents
Click here to see answer by solver91311(16868)

Question 334458: x^-7/8*x^7/3 Simplify
Click here to see answer by Fombitz(13828)

Question 334456: 2^3/4*2^7/8 - Simplify
Click here to see answer by benazir.sj@gmail.com(109)

Question 334483: (-2)^6
________
(-2)^3

Use the quotient rule and simplify
Click here to see answer by mananth(12270)

Question 334485: y-^8/y^3
Click here to see answer by jim_thompson5910(28493)

Question 334488: (x^-9y^11)(x^-3y^-3)
Click here to see answer by jim_thompson5910(28493)

Question 334484: p^3q^4
________
p^2q^3

Use the quotient rule and simplify
Click here to see answer by Alan3354(30975)

Question 334538: 7d^7a^4
________
56d^7a
Type your answer using exponential notation. Use positive exponents only.
Click here to see answer by jim_thompson5910(28493)

Question 334596: please help me solve this equation:
Click here to see answer by Alan3354(30975)

Question 334714: (4/5)2
Click here to see answer by rfer(12646)

Question 334782: (3z^1/4)^3
____________
z^1/12

Simplify your answer.
Click here to see answer by mananth(12270)

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