Step-by-step explanation:
F(x) = (x + 7)³
= 3C0 * x³ + 3C1 * x² * 7 + 3C2 * x * 7² + 3C3 * 7³
= x³ + 21x² + 147x + 343.
F(t)=(0.5)^t *180 is the answer because (0.5)^0=1 (0.5)^1=0.5 (0.5)^2=0.25
Judy travel's 15.125 miles or 15
miles in 2 3/4 hours
How to solve such time related questions?
The key concept for solving such questions is the relationship between speed, distance and time.
The relationship between them is Distance = Speed x Time
Given:
- Speed = 5 1/2 miles per hour
- Time = 2 3/4 hours
Substituting it in the relationship we get,
Distance = Speed x Time
Distance = 5 1/2 miles per hour x 2 3/4 hours
Distance =
miles
Distance =
miles or 15
miles
Thus Judy travel's 15.125 miles or 15
miles in 2 3/4 hours
Learn more about time related questions here :
brainly.com/question/16403317
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Answer:
it is cGh
Step-by-step explanation:
Answer: 90%
If there are 50 questions and only 5 are answered incorrectly, it leaves him with 45 questions answered correctly.
In order to get the percentage you will need to put 45 over 50 and multiply it against 100%.
45/50 x 100%
0.9 x 100%
=90%