Answer:
4. dy/dx = -2
8. dy/dx = 1/2 x^(-3/2)
10/ dy/dr = 4 pi r^2
Step-by-step explanation:
4. y = -2x+7
dy/dx = -2(1)
dy/dx = -2
8. y = 4 - x^-1/2
dy/dx = - (-1/2x^ (-1/2-1)
dy/dx = 1/2 x^(-3/2)
10. y = 4/3 pi r^3
dy/dr = 4/3 pi (3r^2)
dy/dr = 4 pi r^2
Answer:
When x = 5, y = 1.44
Step-by-step explanation:
We know that when 'y' varies inversely with 'x', we get the equation
y ∝ 1/x
y = k/x
where 'k' is called the constant of proportionality
In our case, given that y varies inversely as the square of x.
so
y ∝ 1/x²
y = k/x²
When x = 3, y = 4, we need to find k
y = k/x²
k = yx²
k = 4(3)²
k = 36
so, the value of k = 36
Now, we need to find y when x = 5
so substitute k = 36, x = 5 in the equation
y = k/x²
y = 36 / (5)²
y = 36 / 25
y = 1.44
Therefore,
Answer:
B. Evidence
Step-by-step explanation:
Reference: like when your drawing something and you want to make sure that you draw the hair the same way some other person did.
Cite: That’s when you give the credits to someone or something 90% sure
Hope this helps :)
It depends what you want it rounded to
Answer: 5cm
Step-by-step explanation:
Formula for Volume.
Solve for r