<span>f(x) = ax2+bx+c, is quadratic equation
</span><span>function opening downward if the a<0,
</span><span>kf(x) = -x², a= -1<0
so the answer is </span><span>B.kf(x) </span><span>
</span>
Answer:
216x^9y^12
Step-by-step explanation:
Which of the following is a composite number?<span>A. 19
B. 63
C. 1
D. 0
63 is a composite number because it is a </span><span>whole number that can be divided evenly by numbers other than 1 or itself.</span>