The expressions of the number of radians can be expressed in the ways below.
<h3>How to write the expressions</h3>
The radius = 1.9 km
The angular speed = 3.1 radians per hour
a. The expression of t from the number of radians
θ = π/2 + 3.1t
<h3>b. Expression from the East</h3>
x = rcosθ
= 1.9cos(π/2 + 3.1t)km
<h3>c. Expression from the north of the center</h3>
= rsinθ
= 1.9sin((π/2 + 3.1t)km
Read more on angular speed here:
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Answer:
the answer is b
Step-by-step explanation:
I did this last year and got them right
Answer:
She ate 18 cookies
Step-by-step explanation:
If you multiply your percent which is 45% by 40 you will get your answer
0.45x40=18
