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vazorg [7]
3 years ago
12

Use laws of exponents to simplify inside the parentheses of the given expression ((a ^ - 2 * b ^ 2)/(a ^ 2 * b ^ - 1)) ^ - 3

Mathematics
2 answers:
Vinvika [58]3 years ago
8 0

Answer:

its d

Step-by-step explanation:

ur welcome

Fudgin [204]3 years ago
4 0

Answer:

Step-by-step explanation:

[\frac{(a^{-2}*b^{2})}{(a^{2}*b^{-1})}]^{-3}=(a^{-2-2}*b^{2+1})^{-3}\\\\\\=(a^{-4}*b^{3})^{-3}=(a^{-4})^{-3}*(b^{3})^{-3}\\\\=a^{-4*-3}*b^{3*-3}=a^{12}*b^{-9}\\\\=\frac{a^{12}}{b^{9}}

Hint:  a^{-m}=\frac{1}{a^{m}}\\\\a^{m}*a^{n}=a^{m+n}\\\\(a^{m})^{n}=a^{mn}\\

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Answer:

0.64

Step-by-step explanation:

The probability that randomly selected student doesn't own a mobile device with internet capabilities is p=0.18 and the probability that randomly selected student owns a mobile device with internet capabilities is q=1-p=1-0.18=0.82.

If 20 students are selected at random, the probability that at most 5 students (0 students, 1 student, 2 students, 3 students, 4 students or 5 students) don't own a mobile device with internet capabilities is

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3 years ago
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Step-by-step explanation:

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(x+y,y+3)=(6,2y) find the value of x and y​
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Step-by-step explanation:

Solution:

Given:-

(X+y,y+3)=(6,2y)

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solving equation (2),

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