Answer:
h'(x) = -10x + 20
Step-by-step explanation:
To get the derivative of
, simply use the following formula:

We have the function, h(x) = -5x^2 + 20x
Using the formula, we get the derivative to be:
-10x + 20
so h'(x) = -10x + 20
Answer:
D, 4
Step-by-step explanation:
The graph crosses the x-axis 4 different times
Answer:
whats the question
Step-by-step explanation:
Answer:
Part A) The diameter of the rug is 
Part B) The radius of the rug is 
Part C) The area of the rug is 
Step-by-step explanation:
Part A) Find the diameter of the rug
we know that
The circumference of a circle (circular rug) is equal to

where
D is the diameter
we have


substitute the values and solve for D


Part B) Find the radius of the rug
we know that
The radius of a circle (circular rug) is half the diameter
we have


substitute

part C) What is the area the rug is covering?
The area of the circle (circular rug) is equal to

we have


substitute


Answer:
v=26.41 m/s
Step-by-step explanation:
From the Newtons laws of motions, we sew that x= (2v₁²sin∅os∅)/g where x is the horizontal distance v is the initial speed and ∅ is the launch angle.
From trigonometry we see that 2 sin∅cos∅=sin 2∅
Therefore, x=(v²sin2∅)/g
x=22m
∅=9°
g=9.8m/s²
22m=v²×sin(2×9)/(9.8m/s²)
v²=(22×9.8)/(sin 18)
v²=697.696
v=√697.696
v=26.41 m/s