Answer:
y= (-3x+8)/4
x = (-4 +8)/3
Step-by-step explanation:
3x + 4y = 8
-3x -3x
4y = -3x +8 divide ALL by 4
y= (-3x+8)/4
3x + 4y = 8
-4y -4y
3x = -4 +8 divide ALL by 3
x = (-4 +8)/3
Answer:
BCDE is inscribed quadrilateral. the opposite angles of a quadrilateral add up to 180°
<E = 84-180= 96°
ans is 96°
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.