Answer:
-54 ft/min
Step-by-step explanation:
Find this rate of change as follows: (change in altitude) / (time).
Here, that would be -378 ft / 7 min = -54 ft/min
Answer:
see explanation
Step-by-step explanation:
(a)
(x + 2)(x + 12) ← expand using FOIL gives
x² + 14x + 24 ≠ x² + 10x + 24
(b)
consider the factors of the constant term (+ 24) which sum to give the coefficient of the x- term (+ 10)
the factors are + 6 and + 4 , since
6 × 4 = 24 and 6 + 4 = 10 , then
x² + 10x + 24 = (x + 6)(x + 4)
Answer: x(15x)
Step-by-step explanation:
Answer:
the answer is...
Step-by-step explanation:
SOMETHING
The constant of proportionality is thus
45; the unit rate is
45 miles per hour.
The relationship between the time t (in hours) and the distance d (in miles) is thus