Find the exact values of the following, giving your answers as fractions.
3^{-2}
4^{-3}
2^{6}

Applying fraction concepts, the exact values are:

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When a value has a negative exponent, it can be represented by a fraction, in the following format:

Thus, we apply this transformation for each of the expression given, to find their exact fractions:

A similar problem is given at link

Step-by-step explanation:

The applicable rule of exponents is ...

  a^(-b) = 1/(a^b)

Of course, an exponent is used to signify repeated multiplication.

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3^(-2) = 1/3^2 = 1/(3·3) = 1/9

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4^(-3) = 1/4^3 = 1/(4·4·4) = 1/64

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2^6 = 2·2·2·2·2·2 = 64

10010010001010010101001001010010100101010010101010010010101010110010001011010010010001

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -