All categories

3 years ago

What does writing the cross product means

1 answer:

5 0

The cross product. ... The cross product is defined only for three-dimensional vectors. If and are two three-dimensional vectors, then their cross product, written as a × b and pronounced “a cross b,” is another three-dimensional vector.

hope this helped :)
alisa202

You might be interested in

A new Outdoor recreation Center is being built in Erie. The perimeter of the rectangular playing field is 456 yards. The length

MAVERICK [17]

Answer:

$P= 456 = 2X +2Y$ (1)

And for this case we know the following condition "The length of the field is 7 yards less than quadruple the width" and we can write this :

$X = 4Y -7$

And replacing into equation (1) we got:

$456= 2(4Y-7) +2Y$

$456 = 8Y -14 +2Y$

$456 = 10Y-14$

Adding 14 in both sides we got:

$456+14 = 10Y$

And dividing 10 on both sides we got:

$Y=\frac{470}{10}= 47$

And then we can solve for X and we got:

$X= 4*47 -7=181$

Step-by-step explanation:

For this case we can set up the following notation:

X represent the lenght

Y represent the width

And since we have a rectangular playing filed the perimeter is given by:

$P= 456 = 2X +2Y$ (1)

And for this case we know the following condition "The length of the field is 7 yards less than quadruple the width" and we can write this :

$X = 4Y -7$

And replacing into equation (1) we got:

$456= 2(4Y-7) +2Y$

$456 = 8Y -14 +2Y$

$456 = 10Y-14$

Adding 14 in both sides we got:

$456+14 = 10Y$

And dividing 10 on both sides we got:

$Y=\frac{470}{10}= 47$

And then we can solve for X and we got:

$X= 4*47 -7=181$

6 0

4 years ago

Help me with this plsss

slavikrds [6]

Answer:

56.31 is r

Hope it helps!!!

6 0

3 years ago

Find sin(β) in the triangle.

Pachacha [2.7K]

Answer:

4/5

Step-by-step explanation:

Given :-

A right angled triangle with sides as 3 , 4 and 5 cm .

We need to find the value of sin(β) in the given triangle . We know that the ratio of sine is ,

$:\implies$ sin(β) = p/h

Where p is perpendicular and h is hypontenuse.

$:\implies$ sin(β) = 4/5

<h3>Hence the required answer is 4/5.</h3>

5 0

3 years ago

Factor each by using the GCF. a) 36x+81 b) 24a+36

nydimaria [60]

The Greatest Common Factor (GCF) is very important when factoring. Later on, you will forget to pull out a GCF and the answer will be wrong. Always look for a GCF before doing anything.

Let's try factoring these:

a.) $36x+81$