Step-by-step explanation:
Since it's a direct variation
y = kx
where k is the constant of proportionality
To find the value of y when x = –0.5 we must first find the relationship between the variables
When
x = 3
y = 2
2 = 3k
Divide both sides by 3
So the formula for the variation is
<h3>
</h3>
When x = - 0.5 or - 1/2
We have the final answer as
<h2>
</h2>
Hope this helps you
Total time = 10/10
So time left = 10/10 - 2/10 - 7/10
= 10/10 - 9/10
= 1/10 (answer)
The speed of the plane after it encounters the wind is C.285mph
<h3>How to calculate the speed of the plane when it encounters the wind?</h3>
Since the plane takes off from an airport on a bearing of 270° and travels at a speed of 320 mph it's velocity is v = (320cos270°)i + (320sin270°)j
= (320 × 0)i + (320 × -1)j
= 0i - 320j
= - 320j mph
Also, the plane encounters a 35 mph wind blowing directly north. The velocity of the wind is v' = 35j mph
So, the velocity of the plane after it encounters the wind is the resultant velocity, V = v + v'
= -320j mph + 35j mph
= -285j mph
So, the speed of the plane after it encounters the wind is the magnitude of V = |-285j| mph
= 285 mph
So, the speed of the plane after it encounters the wind is C.285mph
Learn more about speed of plane here:
brainly.com/question/3387746
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Answer:
-2/3
Step-by-step explanation:
1 2/3 - 2 1/3
5/3 - 2 1/3
5/3 - 7/3
-2/3
Answer:
help me
Step-by-step explanation:
