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3 years ago

Somebody help plz how can i solve the following equations of 6v+3=21

Mathematics

1 answer:

IrinaK [193]3 years ago

6 0

21-3= 18 and 18 divided by 6 equals 3 so v=3

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How many different twotwo-letter passwords can be formed from the letters

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Answer:

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Step-by-step explanation:

GIVEN: two two-letter passwords can be formed from the letters A, B, C, D, E, F, G and H.

TO FIND: How many different two two-letter passwords can be formed if no repetition of letters is allowed.

SOLUTION:

Total number of different letters $=8$

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URGENT NEED HELP WITH A MATH QUESTION

irakobra [83]

Answer:

The image of point P is (1 , -1)

Step-by-step explanation:

- If point (x , y) rotated about the origin by angle 90° anti-clock wise

∴ Its image is (-y , x)

- If point (x , y) rotated about the origin by angle 90° clock wise

∴ Its image is (y , -x)

- If point (x , y) rotated about the origin by angle 180°

∴ Its image is (-x , -y)

* There is no difference between rotating 180° clockwise or

anti-clockwise around the origin

* Lets solve the problem

∵ P = (-1 , -1)

∵ P is rotated about the origin 90° counterclockwise

- Lets use this rule:

If point (x , y) rotated about the origin by angle 90° counterclockwise

then Its image is (-y , x)

∵ x-coordinate of point P = -1

∴ y-coordinate of the image of point P is -1

∵ y-coordinate of point P is -1

∴ x-coordinate of the image of point P is 1

- Lets write the image of point P

∴ The image of point P is (1 , -1)

8 0

3 years ago

Somebody help plz how can i solve the following equations of 6v+3=21​

Somebody help plz how can i solve the following equations of 6v+3=21