What three fractions are greater than -5/7
2 answers:
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Answer:
The Force is applied for 1 sec
Step-by-step explanation:
Given as :
The Total force applied on cart = 100 Newton
The mass of cart = 20 kg
The initial velocity of cart ( v1) = 3 meter per second
The final velocity of cart (v2) = 8 meter per second
∵ Force = mass × acceleration
Or, 100 N = 20 kg × acceleration
Or, Acceleration =
Or, Acceleration = 5 Newton per kg
Again ∵ Acceleration = Rate of change of velocity
I.e Acceleration =
Or, 5 Newton per kg =
Or, Time = = 1 sec
Hence The Force is applied for 1 sec Answer
Answer:
f(x) = 3 if x ≤ -2
= 1 if x > -2 ⇒ attached figure
Step-by-step explanation:
* Lets explain how to answer the question
- For the part of the graph on the left side (2nd quadrant)
- There is a horizontal line start from x = -∞ and stop at x = -2
- The end of the line is black dot means x = -2 belongs to the function
- The horizontal line drawn at y = 3
∴ The equation of the horizontal line is y = 3
∴ The function represents this part of graph is y = 3 if x ≤ -2
- The other part of the graph is also horizontal line start from
x = -2 to x = ∞
- The end of the line is white dot means x = -2 does not belong
to the function
- The horizontal line drawn at y = 1
∴ The equation of the horizontal line is y = 1
∴ The function represents this part of graph is y = 1 if x > -2
* f(x) = 3 if x ≤ -2
= 1 if x > -2
- The answer is attached
