Pentagon ABCDE was enlarged: a What is the ratio of enlargement to the original? Convert the ratio to a percent.
1 answer:
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Answer:
B
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos45° = , then
cos45° = =
=
( cross- multiply )
c = 3
Answer:
t = 1.277 sec and t = 2.848 sec
Step-by-step explanation:
This problem is much more easily done by graphing it than by computing it using algebra.
The values of t we're looking for are the ones that make x = 0, so we want the solutions of on the interval [0, 3].
According to the graph, this is true when t = 1.277 seconds and t = 2.848 seconds.
