Kelly earns $178.50 in interest on an account that earns simple interest at a rate of 4%. If she kept the money in the account f
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Answer:
<em>Could an airplane take off and clear this tall building? YES</em>
Step-by-step explanation:
<u>Trigonometry</u>
The building and the ground form a right (90°) angle. The path of the airplane (assumed a straight line) completes the right triangle.
The takeoff angle of the plane θ=15° has the height of the building (450 feet) as the opposite side and the horizontal distance from the end of the runway (2500 feet) as the adjacent side.
The tangent of θ is defined as the following ratio:
Calculating the inverse tangent function:
This means the angle needed to clear the tall building is about 10° and it's within the maximum airplane's takeoff angle.
Could an airplane take off and clear this tall building? YES
In order to have a linear equation, you have to write an equation like
The sequence has to start with 3, so we must choose , because this guarantees that when
we have
Now, must be even. In fact, if
is even,
will always be even for every possible
, and
will be odd.
So, for example, you might choose
Which will produce the following sequence:
and so on