Answer:
A = -12
Step-by-step explanation:
A put in -2 for 'x' in the equation to find value
2(-2) - y = 8 add 4 to both sides
-y = 12
y = -12
I think YOU can now find B and C with this method !
Answer:
2304 cubic inches
Step-by-step explanation:
Volume of the green is (12)(12)(6)=864
Volume of the blue = (18)(8)(10)=1440
So the total volume is 864 + 1440 = 2304 cubic inches
3p : 8s
1p : (8/3)s
So for every one 'p' there is (8/3) 's'
Ratio of p to s is 1 : 8/3
Step-by-step explanation:
A. No, the sample is not random. The sampling is biased because he limits his selection to only seventh graders.
B. The sample <em>is</em> random. The fact that all the students selected were eighth graders is coincidence, not bias. The sampling method was still random.
