Which statement is true about the polynomial
5s6t2 + 6st9 _ 8s6t2 _ 6t7 after it has been fully simplified?

it has 3 terms and a degree of 9.
it has 3 terms and a degree of 10.
it has 4 terms and a degree of 9.
it has 4 terms and a degree of 10.

Consider the polynomial .

You can see that there are two terms and that have the same degree at s and t variables. So you can add these two terms:

Then the polynomial is simplified to

This polynomial has three terms

Determine the degree of each of these terms:

The maximal degree is 10, thus the polynomial has 3 terms and a degree of 10.

correct choice is B.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

the answer is thin because within context, the stanza concludes the and frail tone the people have toward each other, and the fact that it would be thin, makes the most sense compared to "pliable" or "not hard or firm to the touch". hope this , good luck.

step-by-step explanation:

can i have brainliest