India and africa (i think the third one is arabia but i'm not sure)
Answer:
x + 79 = 90
x = 11 degrees
Step-by-step explanation:
Answer:
} )[/tex]
Step-by-step explanation:
Given two vectors a and b,we are rquired to find the angle between them.
a=(8,7);b=(7,0).
Angle between two vectors can be found by dot product of them.
If a and b are two vectors then the dot product of them is given by|a||b|cos(α).
Where α is the angle between the vectors a and b.
Now
. and
=56.
Now cosα=
so α= cosine inverse of that.
∴α=
} )[/tex]
|x-10| when x = -8
| - 8 - 10 | = |-18| = 18 <==