Answer:
A lies along the positive x-axis and B lies along negative x - axis
.
Step-by-step explanation:
They tell us that we have two vectors, A and B. And they give us a series of conditions for this, now, what would be the correct possibility.
A lies along the positive x-axis and B lies along negative x - axis
.
This is because when both vectors will be in x axis but opposite to each other, then the angle between them will be 180 ° and cos180 ° is -1.
Answer:
10.49 g/cm³
Step-by-step explanation:
Use the density formula, D = m/v
Plug in the mass and volume:
D = m/v
D = 31.47/3
D = 10.49
So, the density of the silver is 10.49 g/cm³
Answer:
8.5
Step-by-step explanation:
d = √[(-7+1)²+(-1-5)²]
= √[(-6)²+(-6)²]
=√(36+36)
=√72
= 8.5
6^2 - 108n + 486
= 6*6 - 6*18n + 6*81
= 6 ( 6 - 18n + 81 )
Hope this helps !
Photon