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padilas [110]
3 years ago
14

What is equivalent to (4+5i)(4-5i)

Mathematics
2 answers:
Luden [163]3 years ago
6 0
16-25i because you have to find like terms and since there are parenthesis you have to mutiply the like terms
Lemur [1.5K]3 years ago
5 0
(4+5i)(4-5i)=(4)²-(5i)²=16-25(i)²=16-25(-1)=16+25=41
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A firm has net working capital of $2,300 and current assets of $3,500. what is the current ratio?
Ulleksa [173]

Based on the net working capital and the current assets, the current ratio of the firm is 2.92

<h3>What is the firm's current ratio?</h3>

First, find the current liabilities:

= Current assets - Net working capital

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= $1,200

The current ratio is:

= Current assets / Current liabilties

= 3,500 / 1,200

= 2.92

Find out more on the current ratio at brainly.com/question/2686492

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8 0
1 year ago
If I feed my lizard every 3rd day, and I feed my snake every 7th day, then on what day would they both be fed?
dusya [7]

Answer:

21st `day

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8 0
2 years ago
Which of the following questions describes the equation 4n = -24?
Alona [7]

Answer:

n = -6

Step-by-step explanation:

<u>Step 1:  Divide both sides by 4</u>

4n / 4 = -24 / 4

n = -6

Answer:  n = -6

3 0
3 years ago
The buyer for a chain of stores purchased lawn ornaments in bulk, paying $23 each. The stores will sell each lawn ornament for $
Naya [18.7K]

Answer:

The markup percentage is 61.2

Step-by-step explanation:

Given as :

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The sell price of each ornament = $37.08

Let The markup percentage = x

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Or, x% = \dfrac{37.08 - 23}{23}

Or, x% = \dfrac{14.08}{23}

Or, x% = 0.612

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I.e x = 61.2

So, The The markup percentage = x = 61.2

Hence, The markup percentage is 61.2 Answer

8 0
3 years ago
A car completes a journey of 570 km at an average speed of 75 km/h calculate the time taken for the journey in hours and minutes
Evgesh-ka [11]
570/75=7 hours and 36 minutes
4 0
3 years ago
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