All categories

3 years ago

What does I cubed mean? I foreal need help

Mathematics

1 answer:

Fantom [35]3 years ago

8 0

I=√-1
i^2=-1
i^3=-i
i^4=1

You might be interested in

Raj takes a taxi to the airport. He expects the taxi to travel at an average speed of 50 mph.

schepotkina [342]

9514 1404 393

Answer:

9 minutes

Step-by-step explanation:

In terms of hours, the travel times are ...

time = distance/speed

Expected time

te = (30 mi)/(50 mi/h) = 3/5 h = 36 minutes

Actual time

ta = (30 mi)/(40 mi/h) = 3/4 h = 45 minutes

Then the extra time taken is ...

(45 -36) min = 9 minutes

The journey took 9 minutes longer than expected.

5 0

3 years ago

This week Andres will practice with his band for 1 1\2 hours monday , 1 3\4 hours on tuesday , and 2 hours wednesday . Next week

alexdok [17]

Answer:

10.5 hours

Step-by-step explanation:

Given:

This week Andres will practice with his band for

$1\frac{1}{2} \ means\ \frac{3}{2} \ hours$ on Monday

$1\frac{3}{4} \ means\ \frac{7}{4} \ hours$ on Tuesday

2 hours Wednesday.

Next week Andres will practice with his band for the same number of hours on Monday, Tuesday, Wednesday.

Question asked:

What was the total number of hours Andres will practice with his band over these 6 days?

Solution:

As she practice for two weeks, three days of each week:

On two Monday, she will practice = $\frac{3}{2} + \frac{3}{2} =\frac{3+3}{2} =\frac{6}{2} =3\ hours$

On two Tuesday, she will practice = $\frac{7}{4} +\frac{7}{4}=\frac{7+7}{4} =\frac{14}{4} =\frac{7}{2} \ hours$

On two Wednesday, she will practice = $2+2=4 \ hours$

Total hours, she will practice over 6 days $=3+\frac{7}{2} +4$

$=7+\frac{7}{2} \\ \\ =\frac{2\times7+7}{2} \\ \\ =\frac{21}{2} \\ \\ =10.5\ hours$

Thus, Andres will practice 10.5 hours with his band over these 6 days.

5 0

3 years ago

Ron is 5 years older than twice his cousins pats age. The sum of their ages is less than 35. What is the grates age pat could be

Anestetic [448]

The answer is 7 because if you multiply 7 with 5 than it will equal 35

Hope it helps

7 0

4 years ago

Can someone help me with this asap!

Schach [20]

Answer:

I’m not really sure but I think it’s number 2

Step-by-step explanation:

8 0

3 years ago

If Karen has 6 cups of oatmeal and she divides it into 3/4 cup servings, how many servings of oatmeal will she have?

djyliett [7]

8 servings of oatmeal

4 0

3 years ago