Answer:
x = 0.954
Step-by-step explanation:
We apply pythagorean to find x
(4-x)² = 1.2² + 2.8²
(4-x)² = 9.28
✓(4-x)² = ✓(9.28)²
4 - x = 3.046
- x = 3.046 - 4
- x = -0.954
x = 0.954
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Answer:
The value of the company in 2018
Step-by-step explanation:
we know that
The equation of a exponential growth function is equal to
where
V(t) is the value of the company
t is the number of years after 2018
a is the initial value or y-intercept
r is the rate of change
we have
so
230 is the value of the company when the value of t is equal to zero
Remember that
t is the number of years since 2018
therefore
230 is the value of the company in 2018
Answer:
The answer to the question is
The actual duration of the trip is 8/9 times the normal duration or the bus arrived 1/9 times earlier than it would have at a constant speed of v kph
Step-by-step explanation:
Speed of bus in the first third distance = v kph
Speed of bus for the remaining two thirds = 1.2 v kph
To solve the question, we note that speed = distance/time
therefore time = distance/speed
Let the distance of the destination be D, then
Normal duration at speed v = D/v
Actual duration (D/3)÷v + (2D/3)÷(1.2v) ⇒ (1.2*D/3 + 2D/3)1.2v
= = (8/9)×D/v
Therefore the actual duration is 8/9 times the normal duration