<span>3x(4x^4-5x)
= 12x^5 - 15x^2
hope it helps</span>
Answer:
Part A) Rectangle
Part B) Triangle
Part C) Cone
Part D) Circle
Step-by-step explanation:
Part A) Perpendicular cross section of a cylinder
The perpendicular cross section of a cylinder is a rectangle
The base of the rectangle is equal top the diameter of the circular base of cylinder and the height of the rectangle is equal to the height of the cylinder
Part B) Perpendicular cross section of a pyramid
Cross sections perpendicular to the base and through the vertex of a pyramid will be triangles
Part C) Shape created when a right triangle is rotated about the y-axis
When a right triangle is rotated about the y-axis, then it forms a cone.
The vertical leg of the triangle becomes the height of the cone.
The horizontal leg of the triangle becomes the radius of the cone.
The hypotenuse of the triangle becomes the slant height
Part D) Parallel cross section of a sphere
The parallel cross section of a sphere is a circle
All cross sections of a sphere are circles
Answer:
3rd one.
Step-by-step explanation:
Answer:
1.5
Step-by-step explanation:
The average rate of change is 1.5
when x=0 , the value of y =1
when x=2 the value of y = 4
<em>average rate of change formula = </em>
a= 0 , f(a)=1
b=2, f(b)= 4
4 - 1 / 2 - 0 = 3/2 = 1.5
To figure out the answer, you must first find the area. To do this, multiply the length times the width. In this case, that is 7 feet times 8 feet. That equals 56 feet squared. Because the square paving stones are 1 foot squared, the answer is 56 paving stones in all.
I hope this helped! If you don't mind, please do mark my answer as the Brainliest, as I am trying to get past the Ambitious rank. :)
