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Lostsunrise [7]
3 years ago
8

If i=√-1 , what is i^2 equal to ?

Mathematics
1 answer:
Alja [10]3 years ago
5 0

Answer:

-1

Step-by-step explanation:

If i = √-1, then i^2 = -1.

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Elevator is on the 16th floor. It goes up 12 floors, down 7 floors, up 3 floors, and then down 5
seropon [69]

Answer:

The elevator stops on the 19th floor.

Step-by-step explanation:

On the 16th floor, goes up 12 floors:

16 + 12 = 28

On the 28th floor, goes down 7 floors:

28 - 7 = 21

On the 21st floor, does up 3 floors:

21 + 3 = 24

On the 24th floor, goes down 5 floors:

24 - 5 = 19

6 0
3 years ago
A vector is used to express a car's change in position, or displacement, by tracking its motion over a large area defined by a c
Mnenie [13.5K]

Answer:

The correct answer is option C: (8, 14).

Step-by-step explanation:

The car's displacement in vector form can be found by subtracting the initial points from the final points.    

Initial: (x₁, y₁) = (-3, -5)

Final: (x₂, y₂) = (5, 9)          

For the x-coordinate, we have:  

d_{x} = x_{2} - x_{1} = 5 - (-3) = 8

And for the y-coordinate, we have:

d_{y} = y_{2} - y_{1} = 9 - (-5) = 14

The car's displacement in vector form is:

d = (d_{x}, d_{y}) = (8, 14)  

Therefore, the correct answer is option C: (8, 14).

I hope it helps you!                        

7 0
3 years ago
What is the vaule of the expression x + y + - y<br> When x= -1 and y = 3
mel-nik [20]

Answer:

x + y - y \\  - 1 + 3 - 3 \\  =  - 1

6 0
3 years ago
Read 2 more answers
Really need help with this question
saw5 [17]

Keep the bases of 6 and add exponents: 6^{16}

Keep the bases of 11 and add exponents: 11^{26}

So its C.

hope that helps :)

3 0
3 years ago
((Picture) CONVERGENT AND DIVERGENT SERIES PLEASE HELP!!
defon

Answer:

C

Step-by-step explanation:

The first term = 1500

2nd term = 900

3rd term = 540

The series is a GP.

r = 900/1500 = 0.6

The sum of the first 10 term, S₁₀, is as calculated below.

Sn = a(1-rⁿ)/(1-r)

S₁₀ = 1500(1 - 0.6¹⁰)/(1 - 0.6)

      = 1500 × 0.9939/0.4

       = 3,727.125 m

8 0
3 years ago
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