What is the 10th term in the sequence -6,-9,-12,-15

-33

it just adding -3

ex: -6+-3= -9

hope this helped

-18 is the fifth one add -3 and its -21 which is the 6th one. then you keep going and get -33.

-33

Explanation:

[1] -6

[2] -9

[3] -12

[4] -15

[5] -18

[6] -21

[7] -24

[8] -27

[9] -30

[10] -33

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a