Answer
Which form most quickly reveals the y-intercept? Answer is B
What is the y-intercept? Answer is 24
Step-by-step explanation:
It is pretty simple. For the first question, you have standard form, factored form and vertex form. With factored form you have all the quadratic equation in the form ax²+bx+c making the y = g(x) simple to understand.
For the second one, we know that y-intercept is when the slope crosses the y-axis. So we know that our slope must have x equal to 0 and you substitute 0 to x...
Answer:
Part A:
The surface area of a cylinder is given by
A= 6πr² if h= 2r
Part B:
Total Cost of covering the cylinder = Rate *2πrh + rate*2πr²
Cost of covering only the side = Rate *2πrh
Step-by-step explanation:
Part A:
The surface area of a cylinder is given by
A= 2πrh + 2πr²
Where h= height and radius = r
But we have the height twice as radius so h= 2r
So putting h= 2r we get
A= 2πr(2r) + 2πr²
A= 4πr² + 2πr²= 2πr²(2+1) = 2πr²(3)= 6πr²
Part B:
Cost = Rate * area of the wall + rate * area of the top and bottom
Cost = Rate *2πrh + rate*2πr²
Where area of the top and bottom= πr² +πr² =2 πr²
and area of the side = 2πrh
Multiplying both with the rate and then adding would give the total cost of materials needed to cover the outside of the cylinder and from top and bottom as well.
If you do not need to cover top and bottom then the expression would be
Cost of covering only the side = Rate *2πrh
Part C:
Already done above.
Answer:
Step-by-step explanation:
Finding an areas of a region is simple. You can take parts of that region and add them. Or you can make a guesstimate of the area of the region like solving the area of a square.
That is the answer it was to long to write down
Answer
He would lose 2000 dollars either way so it doesn't really matter.
Step-by-step explanation:
