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Alex73 [517]
3 years ago
6

Help I am currently in a unit test please answer this question

Mathematics
1 answer:
Semmy [17]3 years ago
5 0

Answer:

The second one :)

Hope this Helps!

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A 2D vector can have a component equal to zero even when its magnitude is nonzero.
lys-0071 [83]

Answer:

T F F F T F T

Step-by-step explanation:

A 2D vector can have a component equal to zero even when its magnitude is nonzero. TRUE.

it will be actually a 1d vector, but it's still a 2d vector too. this happens when the vector it's aligned to one of the axis.

The direction of a vector can be different in different coordinate systems. FALSE

The direction of a vector is independent of any coordinate system.

A 2D vector can have a magnitude equal to zero even when one of its components it nonzero. FALSE.

because the only way \sqrt{x^{2} +y^{2} } =0 is that both x and y are equal to zero

The magnitude of a vector can be different in different coordinate systems. FALSE.

The magnitude stays the same in every coordinate system

It is possible to multiply a vector by a scalar. TRUE.

it changes only it's magnitude.

It is possible to add a scalar to a vector. FALSE.

you can´t sum elements of diferent spaces. R, R^{2}, etc

The components of a vector can be different in different coordinate systems.TRUE.

The components of a vector are just a way for identifying the vector, in a determinate coordinate system, the way i call those components will change as I change the name I call every point in the plane.

5 0
3 years ago
I will mark Brainliest
Dima020 [189]
Answer: 10 verticesTo make a full circle(360 °), the number of 40° lines you need will be: 360/40=9 lines. So, the base of the pyramid would be made of 9 lines.Pyramid has a base and sides. The sides number is equal to the number of lines of the base. Then, the number of faces/vertices would be: 1 + 9= 10
If the question saying literally 40 edges(not degrees), then the pyramid base would be 40 lines. In this case, the number of vertices would be: 1+40=41
8 0
3 years ago
How can i cancel my subscription
ANTONII [103]

Answer:

account settings

Step-by-step explanation:

visit your account settings and click cancel subscription

8 0
3 years ago
Read 2 more answers
Plllls help me with these three I will make brainlesst pls no links
kkurt [141]

Answer:

90+1,2 = 200

Step-by-step explanation:

maaf kalo salah

6 0
3 years ago
How tall is the flag pole?​
maxonik [38]

Answer:

17

Step-by-step explanation:

6 0
3 years ago
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