Answer: X= -
Step-by-step explanation:
<span>S= (a+b)^2+(4a+b-2)^2+(9a+b-4)^2
98a+14b-44=0
14a+3b-6=0
a=24/49, b=-2/7
y = (24/49)x^2-(2/7)</span>
Answer:
the scatter plots shows a positive association.
Look at the negative sign before the "a" term. For example, "-ax^2+bx+c" has a maximum point because of the negative sign in front of "a"(face-down parabola). This equation, "ax^2+bx+c", has a minimum point as there is no negative sign in front of "a."
Answer:
no solution
Step-by-step explanation:
3 sin x+3=sin x
3 sin x-sin x=-3
2 sin x=-3
sin x=-3/2
which is impossible as |sin x|≤ 1