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natali 33 [55]
3 years ago
13

For exercises 4-6, use the imaginary unit to write an equivalent expression for

Mathematics
1 answer:
Harrizon [31]3 years ago
5 0
4) 5i
6) 2(11i)

I’m pretty sure these are correct
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Six men completed a task in 24 hrs and 48 min. How long, in hours and minutes, would it take four men to complete the same task?
igor_vitrenko [27]

Answer:

It would take 4 men 37 hrs and 12 mins to complete the same task.

step-by-step explanation:

Let X be the time the four men would use to complete the task.

From the question, 6 men completed a task in 24 hrs and 48 mins

But

24 \: hrs \: 48 \: mins = 24(60mins) + 48 \: mins=1488 \: mins

Using ratio and proportion

6 \: men:1488 \: mins

4  men:x\:mins

if more, less divides and if less, more divides.

4 men required more time to complete the task

Hence:

x =  \frac{6}{4} \times 1488 \: mins

x = 2232 \: mins

x = 37 hrs 12 mins

5 0
3 years ago
Approximate: log 1/2 5
zubka84 [21]

Answer:

-2.32193...

Step-by-step explanation:

log.5 (5)

5 0
4 years ago
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Graph y = -6x - 3<br> Y = 3x + 6
Margaret [11]

Answer:

Step-by-step explanation:

6 0
3 years ago
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NARA [144]
14.

1. 7 × 7 = 49
2. 7 × 3 × 3 = 63
3. 7 × 3 × 4 = 84
4. 7 + 3 + 4 = 14

Hope that helps! Feel free to ask for a more explanation, if needed.
8 0
3 years ago
When 843219 to the power of 100 is multiplied out, what is the units digit
Nina [5.8K]

For this case we have the following expression:

843,219

When multiplying to the power of 100 we have:

843,219 * 100 = 843,219 * 10 ^ 2 = 84,321,900

We have to:

0: Unit

0: Ten

9: Hundred

1: One thousand unit

2: Ten thousand

3: One hundred thousand

4: Million unit

8: Ten million

Thus, the unit digit is 0.

Answer:

0

8 0
4 years ago
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