3 years ago

M-15=9 inverse operation

Mathematics

1 answer:

zheka24 [161]3 years ago

6 0

Answer: 24

Step-by-step explanation:

m - 15 + 15 = 9 + 15

m = 24

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3 years ago

StartFraction (negative 7) squared Over (negative 7) Superscript negative 1 EndFraction

Elan Coil [88]

Answer:

-343

Step-by-step explanation:

Given the expression: $\dfrac{(-7)^2}{(-7)^{-1}}$

You will notice that the terms in the numerator and denominator have the same base (-7).

This makes it very easy to simplify by applying the division law of indices.

$\dfrac{a^x}{a^y} =a^{x-y}$

Therefore:

$\dfrac{(-7)^2}{(-7)^{-1}}=(-7)^{2-(-1)}\\=(-7)^{2+1}\\=(-7)^3\\=-7 X -7 X -7\\=-343$

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3 years ago

Read 2 more answers

Evaluate 523 base7 - 65base7

QveST [7]

If these are number systems then it will turn out like this $\displaystyle\bf 523_7-65_7=\boxed{425_7}$

3 0

3 years ago