Answer:
3,5,9
Step-by-step explanation:
I use the method
if it is even can be divisible by 2
if the first 3 numbers add to something divisible by 3
4 if the first 2 numbers add up to be divisible by 4
5 has to end in 0 or 5
6 has to be divisible by 2 AND 3
9 has to be divisible by 3
We can see from the diagram that the length of the rectangle is 2 lots of the radius of one quarter circle. The width is made up of one radius, therefore the width is half of the length.
This means that the width of the rectangle is 9cm, and the radius of each quarter circle is 9cm.
To find the shaded area, we find the area of the rectangle and subtract from the areas of each circle, which are equal:
A = lw - 1/2(pi x r^2)
A = 9 x 18 - 1/2(81pi)
A = 162 - 81/2 pi
A = 34.8cm (3sf)
Step-by-step explanation:
9,7,-1,-2..................
I would say C sorry if it’s not right
