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3 years ago

Write in terms of i . Simplify your answer as much as possible. Square root -27

Mathematics

1 answer:

Nat2105 [25]3 years ago

6 0

Answer:

3i $\sqrt{3}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$ and $\sqrt{-1}$ = i

Given

$\sqrt{-27}$

= $\sqrt{9(3)(-1)}$

= $\sqrt{9}$ × $\sqrt{3}$ × $\sqrt{-1}$

= 3i $\sqrt{3}$

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Solve this quadratic equation by completing the square <br> x^2+6x=18

cestrela7 [59]

Answer:

( x + 3 )² - 27

Step-by-step explanation:

x² + 6x = 18

→ Minus 18 from both sides to get a quadratic equation

x² + 6x - 18

⇒Completed square from is ( x + a )² + b

⇒The value of 'a' will always be half the 'b' value in the equation

ax² + bx + c

→( x + 3 )² + b

Expand out the equation to find 'b'

x² + 6x + 9

We have do something to get from 9 to - 18 which -27

So the answer is ( x + 3 )² -27

4 0

3 years ago

Read 2 more answers

Use the interactive protractor to determine the measure of the angle. what is manglejhg? 70° 75° 110° 115°

DanielleElmas [232]

Using the interactive protractor, the measure of the angle JHG is 115°

<h3>How to determine the measure of the angle?</h3>

The image that completes the question is added as an attachment.

The question requests that we determine the measure of JHG using a protractor.

To do this, we set one end of the protractor at 0°.

Then, we take the measurement of the other end

Using the interactive protractor, the other end stops at 115°

Hence, the measure of the angle JHG is 115°

Read more about angles at:

brainly.com/question/24839702

#SPJ1

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2 years ago

Sheri's freezer is 2 feet wide 6feet long and 2 feet deep what's the volume of her freeser

mixas84 [53]

2*6*2= 24

24 is the volume of Sheri's freeser

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3 years ago

Determine whether each of the following sequences are arithmetic, geometric or neither. If arithmetic, state the common differen

PilotLPTM [1.2K]

$\qquad\qquad\huge\underline{{\sf Answer}}$

$\textbf{Let's see if the sequence is Arithmetic or Geometric :}$

$\textsf{If the ratio between successive terms is }$ $\textsf{equal then, the terms are in GP}$

$\sf{ \dfrac{12}{-4} = -3}$

$\sf{ \dfrac{-36}{12} = -3}$

$\textsf{Since the common ratio is same, }$ $\textsf{we can infer that it's a geometric progression}$ $\textsf{with common ratio of -3}$

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2 years ago

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Which expression has a value of 8?<br> 8x (5-4)<br> (8 x 5) – 4<br> (8 x 5-4)<br> 8 x 5 - 4

fomenos

8x5-4 is equal to 8 if that means 8 times 5 minus 4

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3 years ago