Rotation about the origin
The answer would be three
Answer: 231
<u>Explanation:</u>
Liwen Celina
5x 6x
5x - 21 = 6x
5x - 21 = 4x
<u>-4x +21</u> <u>-4x +21 </u>
x = 21
Liwen: 5x = 5(21) = 105
Celina: 6x = 6(21) =<u> 126</u>
Total: 231
Answer:
1) D.
2) E. The coefficient of is -16.
Step-by-step explanation:
1) A polynomial is an algebraic expression of the form , where is the grade of the polynomial. In this case, the only equation that satisfies this definition is:
Correct answer: D
2) Let , we proceed to expand the expression by algebraic means:
We see that coefficients for and are -16 and 0, respectively. Hence, the incorrect answer is E.