Answer:
Area of the truck tank is
Step-by-step explanation:
It is given height of the cylinder h = 50 ft
Radius of cylinder is r = 4 ft
Surface area of the cylinder is equal to
Now putting the value of r and h
Therefore area of the truck tank is
F(x)=cos(x). Find the x-intercepts of f(x) on [0, 2).
1 answer:
The x-intercepts of the function where the function is given as y(x) = cos(x) are π/2 and 3π/2
<h3>What is the x-intercept of the function?</h3>The x-intercept of the function is the point or points where the graph of the function crosses the x-axis i.e. the point where the function equals 0
<h3>How to find the x-intercepts of the function?</h3>The function is given as
f(x) = cos(x)
And the interval is given as
[0, 2)
The above means that we determine the value of x when the function f(x) equals 0
So, we have
cos(x) = 0
The above equation can be solved graphically
See attachment for the graph of the function f(x) = cos(x)
In the interval [0, 2), the graph crosses the x-axis at points x = π/2 and 3π/2
Hence, the x-intercepts of the function where the function is given as y(x) = cos(x) are π/2 and 3π/2
Read more about x-intercepts at
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The area and perimeter of the triangle is 2/5 square units and (2√10 + 4√5) / 5 units
<h3>Perimeter and area of the triangle giving the equation of a line</h3>First we will plot the giving lines, determine the point of intersection and then use the Pythagoras theorem to determine the dimension of the right triangle.
From the given equation of the lines, the points of intersection of the line are (x₁, y₁) = (- 0.4, 5.2), (x₂, y₂) = (-0.8, 4.4) and (x₃, y₃) = (0, 4)
For the base
b² = c² -a²
b = √(-0.8)² + (4 - 4.4)²
b = 2√5 / 5
For the height
h = √((- 0.4) - (- 0.8))² + (5.2 - 4.4)²
height = 2√5 / 5
For the hypotenuse
r = √2 · b
r = 2√10 / 5
<h3>Determine the Perimeter and area</h3>Perimeter = s1+s2+s3
Perimeter = 2√5 / 5 + 2√5 / 5 + 2√10 / 5
Perimeter = (2√10 + 4√5) / 5 units
<u>For the area</u>
area = 1/2* base * height
A = 0.5 · (2√5 / 5) · (2√5 / 5)
A = 2/5 square units
Hence the area and perimeter of the triangle is 2/5 square units and (2√10 + 4√5) / 5 units
Learn more on area and perimeter of triangles here: brainly.com/question/21511715
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