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2 years ago

7

James says,

2 answers:

Dima020 [189]2 years ago

6 0

-3^3 = -27

Step-by-step explanation:

Thats because -3^3 is (-3×3×3) not (-3×-3×-3) which we are multiplying a the constant not the the powers

Alborosie2 years ago

6 0

Jamie is right because when you cube a number, you multiply it by itself three times. And we know that when 3 negative numbers are multiplied are product will be negative.

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melomori [17]

Answer: $4\sqrt{3}$

Step-by-step explanation:

For this exercise it is important to remember the following:

$i=\sqrt{-1} \\\\i^2=-1$

Given the following expression:

$-2i\sqrt{-12}$

You can notice that the radicand (the number inside the square root) is negative. Therefore, in order to simplify the expression, you need to follow these steps:

1. Replace $\sqrt{-1}$ with $i$ and simplify:

$(-2i)(i)\sqrt{12}=-2i^2\sqrt{12}=-2(-1)\sqrt{12}=2\sqrt{12}$

2. Descompose 12 into its prime factors:

$12=2*2*3=2^2*3$

3. Substitute into the expression:

$=2\sqrt{2^2*3}$

4. Since $\sqrt[n]{a^n}=a$ , you can simplify it:

$=(2)(2)\sqrt{3}=4\sqrt{3}$

4 0

2 years ago

What is the slope of the line that passes through the points (-2, 2), and (-4, -2)?

Nostrana [21]

C is the ryt answer ......

3 0

3 years ago

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What’s the median for 55, 42, 78, 99, 69, 83, 74, 83, 97

soldier1979 [14.2K]

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2 years ago

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Tanya [424]

Answer:

It's irrational

Step-by-step explanation:

the square root of 27 is equal to:

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We know that $\sqrt{3}$ is an irrational number (but a real number), so $3\sqrt{3}$ is the same.

In case we need to prove that $\sqrt{3}$ is irrational, please leave a comment.

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Answer:

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Step-by-step explanation:

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2 years ago

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