Answer: A. The difference of the two means is significant at the 68% confidence level, so the null hypothesis must be rejected.
Step-by-step explanation:
I just got it right on PLATO, so I know it’s 100% correct.
Answer:
w more infor
mation ab
Step-by-step explanation:
This is what we know:4x^2 + 12x + c = (2x + k)^2
<span>
4x^2 + 12x + c = 4x^2 + 2kx + 2kx + k^2
c=9
</span>
Answer:
104cm^2
Step-by-step explanation:
Area of 1st rectangle
given
l=12cm
w=6cm
A =l×w
=12cm×6cm
=72cm^2
Area of 2nd rectangle
given
l=14-6=8cm
w=4cm
A=l×w
=8cm×4cm
=32cm^2
Total area =72cm^2+32cm^2=104cm^2
