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BabaBlast [244]
3 years ago
8

Simply each of the following powers I. i^15=

Mathematics
2 answers:
9966 [12]3 years ago
5 0

Answer:

-i

Step-by-step explanation:

i = √-1, i² = -1, i^4 = 1

i^15 = i^4 • i^4 • i^4 • i² • i

= 1 • 1 • 1 • -1 • i

= -i

vitfil [10]3 years ago
3 0

Answer:

-i

Step-by-step explanation:

i means Imaginary unit.

i to the zero power is 1

i to the first power is itself

i to the second power is -1

i to the third power is -i

Then, i to the fourth power is 1, so it all repeats again.

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Mr. Blake took 10 minutes to drive 5 miles,
Sav [38]

Answer:

The correct answer is - 3, 4, and 5.

Step-by-step explanation:

Given:

distance = 5 miles

time to cover 5 miles = 10 minutes

If his claim is true then,

additional Distance = 15 miles

total distance will be = 15+5 = 20 miles

additional time = 30 minutes

total time = 10+30 = 40 minutes

Solution:

The speed of the vehicle can be calculated by the formula:

V = d/t

where V is speed or velocity

d = distance

t = time

Putting the final or total values in formula =

V = 20/40

= 1/2 (5th statement is true)

In an hour where 60 minutes are there, 1/2 = 30 miles per hour.

Thus, 3rd and 4th statement are true.

8 0
3 years ago
What is the height of a projectile in 4 seconds if its initial height is 125 ft and it has a velocity of 300 ft per second? 972
andre [41]

Answer:

B. 1069 feet

Step-by-step explanation:

d=v_ot+\dfrac{1}{2}at^2 \\\\d=(300)(4)+\dfrac{1}{2}(-32)(4)^2 \\\\d=1200-256=944

Adding the initial 125 feet to this, you get a total height of 1069 feet. Hope this helps!

4 0
3 years ago
What is the reciprocal of 13/14
Vesna [10]

Answer:

14/13

Step-by-step explanation:

the reciprocal is the fraction upside down.

5 0
2 years ago
Read 2 more answers
the point (-3,2)is on the line given by which equation below A. y = 3x B.y = x-5 C.y = x+5 D.y = - 3 x need asap
Ipatiy [6.2K]
The answer is C. y=x+5
4 0
3 years ago
Answer please? 50 pts
Lady_Fox [76]

Answer:

It was a

Step-by-step explanation:

3 0
3 years ago
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