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wlad13 [49]
3 years ago
9

10 points, Solve the rational exponents, please show the work if you can :) please don't use me for points, its already happened

twice today.
2^{x} = 128, 5^{x} = 15,625, 8^{x} =4096, 3^{x} =6561, 8^{x} =262,144, 5^{5x} =3125, 7^{x} =2401, 7^{3x} = 117,649, and 9^{x} =729
Mathematics
2 answers:
Murrr4er [49]3 years ago
8 0
Did you already answer the question or do I have to do it because I dont wanna do it for no reason if you get me
iogann1982 [59]3 years ago
6 0
Essentially just turn the big number into an exponent so u can cancel out and be left with just the x for example 128 is the same as 2^7 and when you have it like that you simply cancel the 2 and are left with x=7

A) x=7
B) x=6
C) x=4
D) x=8
E) got cut off theres no value
F) x=2
G) x=3

Id reccomend downloading photomath for these type of questions or symbolab on your phone it shows the steps but try practicing it first :)
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Answer:

C

Step-by-step explanation:

The equation of a parabola in vertex form is

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where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (8, - 14), thus

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To find a substitute (5, 13) into the equation

13 = a(5 - 8)² - 14

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27 = 9a ( divide both sides by 9 )

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Thus

y = 3(x - 8)² - 14 → C

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