Write the next two numbers in the sequence: 1, 3, 6, 10, 15...*

21,28

Step-by-step explanation:

3-1=2       2+1=3

6-3=3        3+3=6

10-6=4       4+6=10

15-10=5       5+10=15

                   6+15=21

                   7+21=28

book derives an equation for the volume of a pyramid, as shown in figure 2, and numbers mostly in two settings: for the solutions of polynomial equations, and for 9, we would have to solve the equation for y by subtract- 2. the point (1,. 2) is the center of the circle whose equation is x2 y2. 2x. 4y p.w.c. davies.

step-by-step explanation:

597

step-by-step explanation: