The ancient greeks were very interested in number patterns. triangular numbers are number that can be represented by a triangular array of dots, with n dots on each side. the first three triangular numbers are 1, 3, and 6. write a formula for the nth term of this sequence.

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.

How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters