Question

What is the degree of the polynomial 2st^4 + s^2t^2 - 9s^5t + 21 ?
A) 2

B) 4

C) 6

D) 21

Answer 1

What is the degree of the polynomial t^2 + 12t + 36?
A) 1

B) 2

C) 3

D) 36

Answer 2

here you have two variables so you have to consider the sum of their powers and see which one is the highest

Answer 3

I don't know how to do these two... At all.

Answer 4

you have two variables s and t

Answer 5

in each term check their respective powers and add them

Answer 6

whichever sum is the highest, that is the degree...

Answer 7

So, what answer have you come up with???

Answer 8

@TuringTest Thanks mate ☺

Answer 9

I haven't... I'm still confused. I don't know how to add it all.

Answer 10

2st^4 - power of s is 1 and of t is 4 so total 1+4 = 5

s^2t^2 - power of s is 2 and of t is 2 so total 2+2 = 4

9s^5t - power of s is 5 and of t is 1 so total 5+1 = 6

21 - power is zero

so now what is your answer???

Answer 11

um... 6?

Answer 12

correct......☺

Answer 13

Yay:) So what about #2?

Answer 14

In second one there is only one variable t so can't you see what is its highest power/index???

Answer 15

so 2? B

Answer 16

Correct...☺

Answer 17

yay:D thank you so much !