Benjamin's credit card has an APR of 19%, calculated on the previous monthly balance, and a minimum payment of 2%, starting the
2 answers:
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Answer:
t = 5.46 secs and t = 2.42 secs
Step-by-step explanation:
The distance of the ball from the ground is given by:
When the ball is at a distance 211 ft from the ground, that means s(t) = 211 ft. we need to find t:
Using the quadratic formula:
and
where a = 16, b = 126 and c = 211
Hence:
and
and
and
and
and
=> t = 5.46 secs and t = 2.42 secs
This means that the ball will be at 211 feet at two different times, first, after 2.42 seconds and then after 5.46 seconds.
This makes sense because the ball is projected upwards, which means that when going up, it attains 211 feet and also, when coming back down, it also attains 211 feet.
Given that the width of the rectangular piccture is:
Where "l" is the length of the picture.
You know that the perimeter is:
The formula for calculating the perimeter of a rectangle is:
Where "l" is the length and "w" is the width.
Therefore, you can substitute the perimeter and the width into the formula, in order to find "l":
Now you can solve for "l":
Hence, the answer is: