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

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 Question 94859: How do I solve this word problem? National Debt: In December of 2005, the U.S. national dept was approximately 8.1 x 10 with exponent of 12 dollars. At that time, the population of the U.S. was 2.98 x 10 with exponent of 8 people. In December of 2005, what was the U.S. debt per person? Click here to see answer by bucky(2189)

 Question 95690: 1.how do i write the exponets of x*x*y*y*y? is it x2 y3? 2.how do i write the exponets of a/b*a/b*c/d*c/d*c/d? Click here to see answer by checkley71(8403)

 Question 96006: How do you write 10 to the 5th power in standard form? solution of the equation 3y-5y+10=36? Find p: 2p+10=40? Click here to see answer by checkley71(8403)

 Question 96307: Where may I find a list of definitions for allgebra vocabulary? Click here to see answer by scott8148(6628)

 Question 96317: what is 5.2 x 10 to the negative 3rd power and why Click here to see answer by checkley71(8403)

 Question 93747: can someone show me how to simplify (3x)^-1/3 Click here to see answer by edjones(7794)

 Question 96572: how do I solve (ab)to the 5th power? Click here to see answer by edjones(7794)

 Question 96923: what is the value of 1 to the power of root 2x Click here to see answer by jim_thompson5910(29613)

 Question 97152: How do I solve for A and also B with the following equation? (5x^4)(4x^2)=Ax^b My quess A= (5x^4)(4x^2)/x^b so.. A=20x^6/x^b so.. A=20x^(6+b) (Is this answer correct?) B= I don't know how to solve this. Click here to see answer by mathslover(141)

 Question 93980: I think this is the right topic, but i am not sure. If you could please help me, that would be great. i really appreciate this. My math worksheet says to simplify- No variable represents a value that would make the expression meaningless. (i used a dashed line to represent that it is division) (4a^3 b^-4)^3 -------------- (20a^-3) (b^3) Thank you so much. God bless. Click here to see answer by edjones(7794)

 Question 97670: 9/4a=13 or 9 = 13 * 4a or 9 = 52a or 9 / 52 = a 2/7=x/3 or (2 /7) * 3 = x or 6/7 = x 7x/8-1/4+3x/4=1/16+x Click here to see answer by anjali_yamini(27)

 Question 97794: help me pleasee!! Solve simultaneously: , so far ... if this implies that therfore, ... thats all i got! Click here to see answer by jim_thompson5910(29613)
 Question 97794: help me pleasee!! Solve simultaneously: , so far ... if this implies that therfore, ... thats all i got! Click here to see answer by vincy_fyah(4)
 Question 97794: help me pleasee!! Solve simultaneously: , so far ... if this implies that therfore, ... thats all i got! Click here to see answer by stanbon(60771)

 Question 97751: I do not know how to simplify the following: (x^-7 y^11 z^14)^-2 Thanks!! Click here to see answer by stanbon(60771)

 Question 97898: A boojum is avery slow growing catus. one- fifty- year old bloojum is 1.5 meters tall and has been growing about 0.03 meters each year. assume the growth pattern continues. a. write an expression for the height in meters of the boojum y =years from now b .how tall will the boojum be in 50 years." pleas asap Click here to see answer by mathslover(141)

 Question 98026: |-5| what is the answer for this expression |15| whats the answer for both of these and how did you come up with the conclusion Click here to see answer by elima(1433)

 Question 98751: I am having trouble figuring how to set up and solve this equation: Solve for x: (1/4) ^2x+8 = (16) ^ 2x+5 I have tried to guess numbers an put them in practice but I am not clear what operations I need to use to follow this equation I appreciate your help!! Click here to see answer by stanbon(60771)

 Question 98978: how do i write this in standard form(8x10to the power 0f 7)+(1x10p of 3)+(5x10)+ (2x1/10)+(9X1/10) Click here to see answer by stanbon(60771)

 Question 99380: Hello, can you please help me solve this problem? I've asked mathnerds and read purple math and no one can help me solve it. I entered the problem here but it was returned stating No functions. The question is: If x does not equal 0, then (2^4x)(8^2x) = Thanks for your help, Susan Click here to see answer by stanbon(60771)
 Question 99380: Hello, can you please help me solve this problem? I've asked mathnerds and read purple math and no one can help me solve it. I entered the problem here but it was returned stating No functions. The question is: If x does not equal 0, then (2^4x)(8^2x) = Thanks for your help, Susan Click here to see answer by timmy1729(23)

 Question 99444: This problem also includes complex fractions. I simply forget one rule about adding exponents. The equation is . So far I have found the common denominator which is 20x^3. My problem is adding the exponents in the numerator and then simplifying the solution. Would you please help me? Click here to see answer by stanbon(60771)

 Question 99488: Question #29 says to simplify... (5*10^8)(y*10^9) textbook answer is 35*10^17. I tried FOIL method. Can get 10^17 but not 35 Thanks Paul Click here to see answer by stanbon(60771)

 Question 99525: the area of square field is 5184 m. square. a rectangular field , whose length is twice its breadth has its perimeter equal to the perimeter of the square field . find the area of the rectangular field. Click here to see answer by doukungfoo(195)

 Question 99524: the area of aquare field is 60025 m. square. A man cycles along its boundary at 18 km/hr. I how much time will he return at the starting point. Click here to see answer by edjones(7794)

 Question 99562: A rectangular garden has sides of 3x – 4 and 7x + 10. Find the expression that represents its perimeter. Simplify your answer. Thanks Click here to see answer by doukungfoo(195)

 Question 99560: Hello, I'm swamped here. I am really no good at math. I have to show the steps to this problem for my professor and for me, so I can see how it's done. The problem is: evaluate each algebraic expression for the given value of the variable: -6(x + 3) when x = 2 Click here to see answer by doukungfoo(195)