3 years ago

What is the modulus after (-1+sqrt3i) gets raised to the 6th power

Mathematics

2 answers:

Eddi Din [679]3 years ago

8 0

Answer:

it is b

Step-by-step explanation:

took the test

german3 years ago

6 0

Answer:

The answer is D

Step-by-step explanation:

Just took the quiz thinking the previous given answer would be correct well i was bamboozled so the real answer is D.

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Solve for x: −3x + 3 < 6 (2 points)

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-3x < 3 <em>change the signs</em>

3x > -3 <em>divide both sides by 3</em>

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Mr. Campbell was travelled 80 miles in 2 hours. What was his average speed?

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Consider the system of equations. 3x + 2y = 16, x + y = 4 Which numerical values could you multiply the second equation by to el

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Step-by-step explanation:

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4 years ago

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3 years ago

M is a directly proportional to r cubed when r=4 M=160

Paraphin [41]

Answer:

1) When r = 2, M = 20.

2) When M = 540, r = 6.

Step-by-step explanation:

M is a directly proportional to r cubed

This means that the equation for M has the following format:

$M = ar^3$

In which a is a multiplier.

When r=4 M=160.

We use this to find a. So

$M = ar^3$

$160 = a(4^3)$

$64a = 160$

$a = \frac{160}{64}$

$a = 2.5$

$M = 2.5r^3$

1) work out the value of M when r=2

$M = 2.5*2^3 = 2.5*8 = 20$

When r = 2, M = 20.

2) work out the value of r when M=540

$M = 2.5r^3$

$540 = 2.5r^3$

$r^3 = \frac{540}{2.5}$

$r^3 = 216$

$r = \sqrt[3]{216}$

$r = 6$

When M = 540, r = 6.

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3 years ago