Answer:
3/4 - 5/12 = 4/12 - 5/12 = -1/12
Step-by-step explanation:
Moby's addition and subtracting problem is as follows: Let us break the problem into solvable parts.
3/4 - 5/12
we will find the common factor of the denominator which are 4 and 12. The common factor is 12. We divide 12 by both denominator and multiply by the numerator .
3/4-5/12 = (9 - 5)/12 = 4/12 . This is his first error . 3/4 - 5/12 is equal to 4/12 not 3/12.
Now let us go to the second part which is the answer minus 5/12
4/12 - 5/12 = (4 - 5)/12 = -1/12
The final answer should be -1/12. This is another error that has been detected.
The correct answer combination should be as follows.
3/4 - 5/12 = 4/12 - 5/12 = -1/12
The correct answer is D. The numerator and the denominator must be divided by the same number, and 16 is the highest number they can both be divided by. It would simplify down to 3/4.
Answer:
W₂ is three times W₁ (W₂ = 3W₁)
Step-by-step explanation:
Applying,
W = ke²/2............. Equation 1
Where W = workdone in stretching the spring, k = spring constant, e = extension.
For W₁,
W₁ = ke₁²/2
Given: e₁ = 30-20 = 10 cm = 0.1 m
Substitute these value into equation 1
W₁ = k(0.1²)/2
W₁ = 0.005k Joules
For W₂,
W₂ = (ke/2)-W₁
Given: e = (40-20) = 20 cm = 0.1 m
Substitute these value into equation 1
W₂ = (k×0.2²/2)-0.005
W₂ = 0.015k Joules.
W₂/W₁ = 0.015k/0.005k
W₂/W₁ = 3
Therefore,
W₂ = 3W₁
Answer: 
Step-by-step explanation:
From the figure, it is downward parabola of the form 
The parabola has its vertex at 
Distance between parabola vertex and its directrix is 1 unit.
So, the value of a is 1
Hence, the equation of parabola is
Your answer should be 52.8
