Answer:
the first one
Step-by-step explanation:
i had that question
It is true if two vectors point in opposite directions. This means their cross product must be zero.
<h3>What is cross product?</h3>
Cross product is a vector product of two vectors in the three dimensional vector space.
In the case when the two vectors point in opposite directions so there cross product should be zero.
Impact on two points:
In the case when the two vectors point in opposite directions so there cross product should be zero.
Like
A*B = [A][B] sin
Here theta is be the angle that lies between them
So,
A*B = [A][B] sin 180
So, A*B = 0
hence, the given statement is true.
learn more about vectors here:
brainly.com/question/21797532
#SPJ4
Answer:
46
Step-by-step explanation:
- 4(9)+2(3)+4
- 36+6+4
- 46
The equation in standard form would be,
![\frac{2}{7} x + y = \frac{5}{8}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2%7D%7B7%7D%20x%20%2B%20y%20%3D%20%20%5Cfrac%7B5%7D%7B8%7D%20)
All you have to do is move -2/7x to the other side.
Hope this helped
:D
Answer:This is a linear equation.
y = mx+b
y is the total cost.
The slope m is the rate: that's 9 dollars per hour.
x is the number of hours.
b is the initial value: that's 16 dollars.
y = 9x+16
The problem states that the cost was 79 dollars.
Substitute that for y and solve for x.
79 = 9x+16
63 = 9x
x = 7 hour
Step-by-step explanation: