It says "She grows around 6 inches per year."
This means that the rate of change is 6.
27 + (6 * y)
y = how many years pass.
Hope This Helped! Good Luck!
The statement that must be true for the given condition is <span>m∠X + m∠Y < 90°</span>
To find concavity we need to find the second derivative.
Use quotient rule to find f'(x)=4/(x+3)^2
Then use chain rule to find f''(x)=-8/(x+3)^3
To find potential inflection points, we need to find all x values where the second derivative is equal to 0 or is undefined.
Set the numerator and denominator equal to 0 and solve.
(x+3)^3=0
x+3=0
x= -3
Now plug a value less than -3 and greater than -3 into the second derivative to find where the concavity is upward (positive number).
Since f''(-4) is positive, that means that f(x) is concave up on the interval (-infinity, -3).
Answer:
speed = Distance ÷ time
Step-by-step explanation:
S = 8km ÷ 0.5h
S = 16km/h
Replace x with 5, and evaluate the expression.
Remember to follow the correct order of operations.
100 - 15x =
= 100 - 15 * 5
= 100 - 75
= 25
