Which terms could be used as the last term of the expression below to create a polynomial written in standard form? check all that apply. –5x2y4 + 9x3y3 + )x⁵ )y⁵ )–4x⁴y⁵ )6x⁴y )-xy⁵

As we see that the exponent of x is increasing and y is decreasing. Therefore second , third and fifth option are not possible . And since its ask for the last term, so first and fourth , both options are possible.

Therefore , to create a polynomial written in standar form, correct options are first and fourth .

Step-by-step explanation: A is correct because x rose to the power of 5, keeping the upward trend of x. D is correct because it also keeps the trend of x increasing and y decreasing. And F is correct because it also keeps the trend of x increasing even though a y value isn't present.

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19.side- angle- side

20. angle- side- angle

step-by-step explanation: