Computing the limit directly:
Alternatively, you can recognize the limit as being equivalent the derivative of <em>f(x)</em> at <em>x</em> = 2, in which case differentiating and plugging in 2 gives
<em>f'(x)</em> = 2<em>x</em> + 1 => <em>f'</em> (2) = 5
D. 4(x+5)(x-5)
you have to divide the first number out of both terms, then you have the answer. hope this helps
Answer:
10/7
Step-by-step explanation:
divide both numbers by 5
Answer:
Option b
Step-by-step explanation:
Points (0, 1) and (1, -1)
Points (1, 1) and (2, 0)
option b covers these
Answer:
M = 20
Step-by-step explanation:
Given that M is directly proportional to r³ then the equation relating them is
M = kr³ ← k is the constant of proportion
To find k use the condition when r = 4, M = 160, that is
160 = k × 4³ = 64k (divide both sides by 64 )
2.5 = k
M = 2.5r³ ← equation of proportion
When r = 2, then
M = 2.5 × 2³ = 2.5 × 8 = 20
