Answer:
Step-by-step explanation:
Given:
Number of miles is represented by and number of hours is represented by
.
The equation to show the relationship between and
is
Now, for
Plug in the above equation and solve for . This gives,
Hence, the equation is .
Now, if the line passes through , then
.
So,
Therefore, the value of is 270 miles.
A cylinder with a circumference of about 50 units is formed.
Step-by-step explanation:
Step 1:
The perimeter of the square is 32 units. The perimeter of a square is given by 4 times its side length.
So the side length of the square is 8 units.
If a square is rotated a cylinder will be formed. So the options with a cone are wrong as a cone is formed when a triangle is rotated.
Step 2:
To calculate the circumference of the cylinder, we multiply 2π with the radius. The radius is the same as the side length of the square. So r is 8 units.
The circumference of the cylinder
So the circumference of the cylinder is approximately equal to 50 units so the answer is the fourth option, a cylinder with a circumference of about 50 units.