Answer:
By unitary method
40/10 = 4km / litre
So,
4*25 = 100 km
The car covers 100km with 25 litres of fuel
Hope this helps
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A function is differentiable if you can find the derivative at every point in its domain. In the case of f(x) = |x+2|, the function wouldn't be considered differentiable unless you specified a certain sub-interval such as (5,9) that doesn't include x = -2. Without clarifying the interval, the entire function overall is not differentiable even if there's only one point at issue here (because again we look at the entire domain). Though to be fair, you could easily say "the function f(x) = |x+2| is differentiable everywhere but x = -2" and would be correct. So it just depends on your wording really.
The height of building is 35 feet
<em><u>Solution:</u></em>
Given that,
Sam is 6 feet tall and his shadow is 3.6 feet tall
The shadow of building is 21 feet long
<em><u>To find: height of building</u></em>
We can solve this by setting up a ratio comparing the height of the building to the height of the Sam and shadow of the building to the shadow of the Sam
Let us consider,
= height of building
= height of Sam
= shadow of building
= shadow of Sam
Therefore,
Substitute the values,
Thus height of building is 35 feet
Radian to degree conversion.
4(pi)/3 degrees= 4(pi)/3 × 180/pi radians
As pi radians= 180 degrees
Dividing both sides by pi :
pi / pi radian= 180/pi degrees
1 radian=180/pi degrees
4 × pi /3 × 180/ pi
pi and pi gets cancelled.
180/3= 60
4× 60
=240 degrees
Answer is option C.
The answer would be 6(2x^4y^3-6x^3y^2+x^2y)
