Answer:
The sequence is:
10, 30, 50, 70, 90.....................
Step-by-step explanation:
We have,
First term (a) = 10
Common difference (d) = ?
Sum of first 5 terms () = 250
or,
or,
or,
or, 10(5 + d) =250
or, 5 + d = 25
∴ d = 20
Now,
2nd term = a + d = 10 + 20 = 30
3rd term = a + 2d = 10 + 2*20 = 10 + 40 = 50
4th term = a + 3d = 10 + 3*20 = 10 + 60 = 70
5th term = a + 4d = 10 + 4*20 = 10 + 80 = 90
Answer & Explanation:
So the scale factor is or 2. 2. SOLUTION: Rectangle B is smaller than A, so the dilation is a reduction. The distance between the vertices at (-3, -2) and (3, -2) for A is 6 and between the vertices at (-1.5, -1) and (1.5, -1) for B is 3.
3. Design A and Design B both have an area of 20. This is because the dimensions of Design A are 10 x 2 and the dimensions of Design B are 5 x 4. To find the area, you multiply the length by width, so the area of Design A is 20 and the area of Design B is 20.
4. To find the perimeter, you must count up all the square units. The perimeter of Design A is 20, and the perimeter of Design B is 14, so Design A has the greater perimeter.
5. Draw one rectangle 3 x 4 then draw another rectangle 2 x 6.
Sqrt 25 = 5....rational, integer, whole number, and natural