Answer:
Option B. 24/25
Step-by-step explanation:
we know that
In the right triangle DEF
∠D+∠E=90° -----> by complementary angles
so
sin(D)=cos(E)
we have
sin(D)=24/25
therefore
cos(E)=24/25
ANSWER

EXPLANATION
Let the top of the hopper be

Then, by the cosine rule,

We evaluate to get,



Take positive square root of both sides to get,

Answer:
Hector
Step-by-step explanation:
The are parallel because they go in the same directions and they are line segments because technically a true line is infinitely long.
Answer:
- 5-hour: 0.5277
- 1-hour: 0.8800
Step-by-step explanation:
The decay factor for time t can be written as ...
0.2785^(t/10)
Then the 5-hour decay factor is ...
0.2785^(5/10) ≈ 0.5277
and the 1-hour decay factor is ...
0.2785^(1/10) ≈ 0.8800