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3 years ago

There are 1996 students at TCHS. The number of girls is 52 less than the number of boys . How many boys and girls

Mathematics

2 answers:

Lady bird [3.3K]3 years ago

6 0

$1996 - 52 =$

Step-by-step explanation:

1944+52=1996 Answer:1944

TiliK225 [7]3 years ago

6 0

Answer: Boys = 1024

Girls = 972

Step-by-step explanation:

Let the number of boys = x ...... ( 1 )

Therefore the number of girls = x - 52 ..…... (2 ) ( x < 52 )

X + x - 52 = 1996

2x - 52 = 1996

2x = 1996 + 52

2x = 2048

X = 2048/2

X = 1024

Substitute for x in equation ...( 2 ) to get the number of girls

1024 - 52 = 972

Now , number of boys = 1024

And number of girls = 972

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Step-by-step explanation:

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3 years ago

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SashulF [63]

Answer:

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Step-by-step explanation:

For this case first we need to calculate the dot product of the vectors, and after this if the dot product is not equal to 0 we can calculate the angle between the two vectors in order to see if there are parallel or not.

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Since the dot product is not equal to zero then the two vectors are not orthogonal.

Now we can calculate the magnitude of each vector like this:

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And finally we can calculate the angle between the vectors like this:

$cos \theta = \frac{ab}{|a| |b|}$

And the angle is given by:

$\theta = cos^{-1} (\frac{ab}{|a| |b|})$

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