Answer:
k, a, and i I think!
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given two non zero vectors, 
.
Let the angle between the two vectors = 
Given that:
Let us have a look at the formula for magnitude of addition of two vectors:
Where is the angle between the two vectors.
formula for magnitude of subtraction of two vectors:
As per the given condition:
Squaring both sides:
So, the angle between the two vectors is:
Answer:
Therefore, the two equivalent ratios of 4 : 5 are 8 : 10 and 12 : 15.
Step-by-step explanation:
Commutative property of addition:
The property that states the sum of an addition problem will be the same no matter the order of its numbers.
a + b = b + a
From the equation e^(-0.055x) = 2e^(-0.124x), we can first take the natural logarithm of both sides:
ln(e^(-0.055x)) = ln(2e^(-0.124x))
ln(e^(-0.055x)) = ln2+ln(e^(-0.124x))
Since ln(e^a) = a,
-0.055x = ln2 - 0.124x
0.069x = ln2
x = 10.05, or approximately 10 days
