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Vlada [557]
3 years ago
7

Cube of -1/2 is equal to-----------. i need urgent please.I will mark brainest

Mathematics
2 answers:
GuDViN [60]3 years ago
6 0

Answer:

-1/8

Step-by-step explanation:

(-1/2)(-1/2)(-1/2)=-1/8

Serga [27]3 years ago
5 0

Answer:

<h2>\frac{ - 1}{8}</h2>

solution,

(\frac{ - 1}{2} ) ^{3}  \\  =  \frac{( { - 1)}^{3} }{( {2}^{3} )}  \\  =  \frac{ - 1 \times ( - 1) \times ( - 1)}{2 \times 2 \times 2}  \\  =   - \frac{  1}{8}

hope this helps...

Good luck on your assignment

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VladimirAG [237]

You first multiply the outside exponents into the numbers in the parentheses.

When you have an exponent being multiplied directly to another exponent, you multiply the exponents together.

For example(because I am a bad explainer):

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(x^4)^3 = x^{4(3)} = x^{12}


When you divide an exponent by an exponent, you subtract the exponents

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When you have a negative exponent, you move it to the other side of the fraction to make the exponent positive

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\frac{(3a^2b)^3}{9(ab)^4}

You can think of it like this if you want:

\frac{(3^1a^2b^1)^3}{9(a^1b^1)^4}  Now multiply the outside exponents into the exponents in the parentheses

\frac{3^3a^6b^3}{9(a^4b^4)} =\frac{27a^6b^3}{9(a^4b^4)} Divide 27 and 9

\frac{3a^6b^3}{a^4b^4} =(3)(a^{6-4})(b^{3-4})=(3)(a^2)(b^{-1})=(3)(a^2)(\frac{1}{b^1})=\frac{3a^2}{b}



Your answer is \frac{3a^2}{b}



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3 years ago
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