Elena’s aunt bought her a $150 savings bond when she was born. When Elena is 20 years old, the bond will have earned interest an
2 answers:
You might be interested in
cos(20) = sin(70)
note how 20+70 = 90
The general rule is that if x+y = 90, then cos(x) = sin(y). The rule works in reverse as well. Another way to phrase the rule is cos(x) = sin(90-x).
So,
Note: if the computer doesn't like the answer of "sin 70" then try "sin(70)" and see how that works out. It's also possible that the teacher wants the single numeric value of "70" in the first box rather than the "sine" part to go along with it. Though that would be strange and incorrect since cos(20) = 70 is a false statement.
Answer:
The position at time t is
Step-by-step explanation:
From the question we are told that
The acceleration is
The velocity at t = 0 is
The position at time t = 0 is
Generally acceleration is mathematically represented as
=>
=>
integrating both sides we have
=>
Now at t = 0
=>
So
Generally the position of the body is mathematically represented as
So
So
Now at t = 0
=>
So