Tutors Answer Your Questions about Exponents (FREE)
Question 79222: This is a homework assignment and I have been trying to solve it with no luck. The problem is as follows:
(x^7y^-4z^0/5^-2x^3y^-8z^-9)^2 All exponents in final answers should be positive. Final answers should have all single connecting signs and be arranged in descending order. This is what I have so far, but do not know if it is right. Homework is due Tuesday, April 24,2007.
(x^7y^-4z^0/5^-2x^3y^-8z^-9)^2
= (x^7x^3/y^45^2y^8z^9)2
=(x^7)^2x^3(2)/(y^4)^2(5^2)^2(y^8)^2(z^9)^2
= x^14x^6/y^85^4y^16z^18
=x^14y^16z^185^4/x^6y^8
=5^4 x^14-6Y^16-8z^18
= 625z^18x^8y^8
Is this correct? If not, what am I doing wrong? Your reply and help is greatly appreciated. Thank you.
Click here to see answer by stanbon(57243)  |
Question 81658: Hello,
I go to the Moring Star Online Homeschooling Academy. And need sever help with Exponents.. I am having questions that look like this:
j-7^2k^9^3kl
_____________
-j^4k^2l
I do not understand how to do these.. This is one of many problems they are telling me to use:
To complete these problems, use the rules you have learned as necessary in this order:
Power of Quotients Rule (AKA: Power of Fractions Rule)
Zero Exponent Rule
Power Rule
Expand or evaluate any exponents
Product Rule
Quotient Rule
I have no idea how to even start a problem like this!
I was wondering if you could give me a few pages to print out of how to do each step step-by-step explanatory help.. Can you send me a link or something. ASAP.. Thanks. I appreciate your help... VICTORIA
P.S. If you could send me some rules and exaples of negative numbers with that Id really appreciate it :)
Click here to see answer by scott8148(6628)  |
Question 84016: Tutor could you help me with this problem
(6X-7)^2
I know the answer would be:
=36x^-14
=36/x^14
but my instructor wrote: You have to either use a formula or rewrite your problem (6x-7)(6x-7)
Would it then be: 36-7=29 * 29 = 58????
I don't understand this...Please Help!!!!! Thank you
Click here to see answer by stanbon(57243) |
Question 84199: the distance from the sun to earth is approximately 1.5 times 10 to the power of 8 km. The distance from the sun to the planet Neptune is approximately 4.5 times 10 to tye power of 9 . What is the ratio of Earth's distance from the sun to neptune's distance from the sun?
Click here to see answer by ptaylor(2048)  |
Question 84532: ((2x)^2)((4x)^4)((8x)^6)=
a.) (2^22)(x^12)
b.) (2^24)(x^12)
c.) (2^26)(x^12)
d.) (2^28)(x^12)
I know the answer is d. but how would you arrive at that answer without multiple choice answer. Say this was on a test and it wasn't multiple choice, how would you arrive at the correct answer in that format. I understand how to get the x^12 but I do not know how to arrive at 2^28. How do get from 268435456 to 2^28?
Click here to see answer by jim_thompson5910(28504) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455
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