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liubo4ka [24]
3 years ago
15

HELP ASAP 25 points. Vector question

Mathematics
1 answer:
Nutka1998 [239]3 years ago
5 0

Answer:

4v - 7w  = (101 , -36)

6u -8v = (-78 , 58)

2u +v - 4w = (40 , -4)    

11u + 3w = (-88 , 89).

Step-by-step explanation:

u(-5, 7) ; v(6 , -2) ;   w(-11,4)

4v - 7w = (4*6+[-7]*[-11] , 4*[-2] + [-7]*4)

            =(24+77 , -6 - 28)

4v - 7w  = (101 , -36)

6u - 8v = (6*[-5]+[-8]*6 , 6*7+[-8]*[-2] )

            = (-30-48 , 42+16)

6u -8v = (-78 , 58)

2u + v - 4w = (-10+6+44 , 14 -2 -16)

2u +v - 4w = (40 , -4)                  

11u + 3w = (11*[-5]+3*[-11]  ,  7*11 +3*4)

             = (-55-33 , 77+12)

11u + 3w = (-88 , 89)

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Answer:

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Step-by-step explanation:

There are 60 seconds in a minute. This fact can be used to convert the time period(s) to minutes and seconds either before or after you do the subtraction.

<h3>Difference</h3>

It is often convenient to do arithmetic with all of the numbers having the same units. Here, we are given two values in seconds and asked for their difference.

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The difference between the two time periods is 0 minutes and 13 seconds.

<h3>Conversion</h3>

If you like, the numbers can be converted to minutes and seconds before the subtraction. Since there are 60 seconds in a minute, the number of minutes is found by dividing seconds by 60. The remainder is the number of seconds that will be added to the time in minutes:

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Then the difference is found in the same way we would find a difference involving different variables. (A unit can be treated as though it were a variable.)

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The difference between the two time periods is 0 minutes and 13 seconds.

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2 years ago
a new statue with a circular base is being unveiled in a downtown park. the statue base has a radius of 8 feet. round your answe
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