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Lisa [10]
4 years ago
13

Rewrite the expression 4+ the square root of 16-(4)(5) decided by 2 as a complex number in standard form a+bi

Mathematics
1 answer:
bija089 [108]4 years ago
8 0

Answer: 4 + \sqrt{4i}

Step-by-step explanation:

4+ \sqrt{16-(4)(5)} = 4 + \sqrt{16-20} =4 + \sqrt{-4} = 4 + \sqrt{4i}

if it matters then simply further...

4 + \sqrt{4i} = 4 + 4i^{1/2}

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Neko [114]

Answer:

first, i believe 101/105

second, i believe 15/16

third is 3/8

fourth is 5/8

Step-by-step explanation:

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3 0
3 years ago
The height of a rectangle is increasing at a rate of 11 centimeters per hour and the width of the rectangle is decreasing at a r
son4ous [18]

Answer:

-39 cm²/h

Step-by-step explanation:

The area of the rectangle is A = hw where h = height and w = width.

So the rate of change of area with respect to time is

dA/dt = d(hw)/dt

dA/dt = hdw/dt + wdh/dt

Given that at an instant h = 3cm, w = 8 cm and dh/dt = + 11 cm/h and dw/dt = -9 cm/h(negative since it is decreasing)

So, dA/dt = hdw/dt + wdh/dt

dA/dt = 3 cm × (+11 cm/h) + 8 cm × (-9 cm/h)

dA/dt = 33 cm²/h - 72 cm²/h

dA/dt = -39 cm²/h

8 0
3 years ago
What is the greatest common factor of 20 and 36?<br> 2<br> 4<br> 5<br> 6
Sindrei [870]

Answer:

GFC = 4

Step-by-step explanation:

Factors of 20     1   2   <u> 4   </u>5   10  20

Factors of 36     1   2  3<u> 4  </u>6  9 12 18 36

3 0
2 years ago
Read 2 more answers
Help pls im slow !!!!!!!!
bulgar [2K]

Answer:

z= 1/3

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4 0
3 years ago
Simplify the question 6^3
sertanlavr [38]

Answer:

216

Step-by-step explanation:

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3 years ago
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