To find the perimeter you have to do Base+2Side so 17+2*15 = 17+30 = 47 mm
To find the area you have to do (Base*Height)/2 = 17*7/2 = 119/2 = 59,5 mm²
Area: Multiply half the base times the height
what if you multiply 6*3 which is 18 and then that times 10 I'm not sure but I'm trying my best to help.
multiply 10 x 3
30 x 6=
The intersection of y=x and y=x^2 is (0,0) and (1,1)
Prefered this method for this one since slices are perpendicular to axis of rotation
Integrate(Big circle - Small Circle)dx
Integrate(pi*(x)^2-pi*(x^2)^2)dx on x=0..1
Integrate(pi*x^2-pi*x^4)dx on x=0..1 is 2pi/15
So I have to solve for x since I will be integrating with respect to y
The height of the the shell will be sqrt(y)-y
The radius will be y since that is the distance between axis of rotation in a point within the shell
Integrate(2*pi*r*h ) dy
Integrate(2*pi*(sqrt(y)-y)*y) dy on y=0..1 is 2pi/15
B) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, add (40m2 + 24m2 = 64m2).
Samuel should is looking to find the area of his basement in order to cover it with carpet.
An area is calculated by multiplying two dimensions (so answers A and D are not it).
Best solution is to divide the area into two large rectangles then ADD them together to get the total area.
The only scenario where he could have subtracted something based on his plan is if he would have multiplied the 10m by the 12m then subtracted the area that is not part of his basement (7mx8m). He would have achieved the same result of course, but by going a different way.
i need a picure
And for area you have to do 17 times 15 divided by 2.
d i think