(-8x)<span> ÷ (-4)=0
First you have to divide both sides by -4:
2x</span><span> ÷ 1=0
Now divide both sides by 1 so that the left side can be eliminated:
2x=0
</span>Now divide both sides by 2 so that the left side only has x:
x=0
Answer:
x=60°[by alternate interior angle]
x+y=180°[by co interior angle]
60°+y=180°
y=180°- 60°
y= 120°
Answer:
37.5cm
Step-by-step explanation:
V=1/3Bh
150=1/3 12h
150=4h
37.5=h
Answer:
y = 5x - 3
Step-by-step explanation:
*Look at the picture*
Answer:
P(A or B) = P(A) + P(B) - P(A and B) = 0.5 + 0.7 - 0.3 = 0.9
Step-by-step explanation:
The equation we should use to calculate the addition of probabilities is:
P(A or B) = P(A) + P(B) - P(A and B)
Notice that if we just sum P(A) + P(B), our result would be wrong, because we would sum the intersection of those events two times.
So, in this case, if we call 'A' the pillow being encased in microfiber and 'B' the pillow being filled with memory foam, we have that:
P(A) = 0.5
P(B) = 0.7
P(A and B) = 0.3
So the addition of both probabilities is:
P(A or B) = 0.5 + 0.7 - 0.3 = 0.9
