ANSWER
A) -20x²+14x+12; all real numbers
EXPLANATION
The give functions are;
and
This is a polynomial, hence the domain is all real numbers.
The highest median lifespan would be represented on the box plot that has the highest median value.
Company A: 23
Company B: 24
Company C: 22
Company D: 22.5
The company with the highest median lifespan of batteries is company B.
Answer:
d = 576
Step-by-step explanation
Think of the two different speeds as belonging to 2 different cars going to the same place, taking the same route and going to the same place.
Let the time traveled by the fast car = t
Let the time traveled by the slower car = t+4
Let the rate of travel of the slow car = 36 mph
Let the rate of travel of the fast car = 48 mph
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d = 36*(t + 4)
d = 48 * t
Since the distance is the same, they can be equated.
48t = 36(t + 4) Remove the brackets.
48t = 36t + 144 Subtract 36t from both sides.
48t - 36t = 144 Combine
12t = 144 Divide by 12
t = 144/12
t = 12
Therefore the faster car takes 12 hours to get where it is going.
d = 48 * t
d = 48 * 12
d = 576
Answer:
The former number of enrollees was 1423135
Step-by-step explanation:
Current number of enrollments in Health Maintenance Organizations in Illinois in recent year = 2462170
Now, it is found that this number is a result of 42.2% increase from the last year.
So, Previous year the number of enrollments is 42.2% less than the recent number of enrollments
Now, Former number of enrollments = 2462170 - 42.2% of 2462170
= 2462170 - 0.422 × 2462170
= 2462170 - 1039035.74
= 1423134.26 ≈ 1423135
Hence, The former number of enrollees was 1423135
