Answer:
1. Formula: b * h ÷ 2
12 * 3 = 36 ÷ 2 = 18 in^2
2. Formula: b * h ÷ 2
5 * 8 = 40 ÷ 2 = 20 ft^2
I could only help on two. Hope it helps though! =)
The answer is <span>y=0.5x+3
</span><span>There are 3 inches of snow on the ground: y = 3
</span><span>When it begins to snow 0.5 inches per hour: y = 0.5x
</span>There are 3 inches of snow on the ground when it begins to snow 0.5 inches per hour: y = 0.5x + 3<span>
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This is simple, for the problem to be true the two things would have to = the same thing so X = 6, 6/3 = 6/3
rational numbers can be written as a ratio of two integers a/b
1/2 is the ratio of 1 and 2 so its rational
√7/10 is not a ratio of two integers so its irrational
3π/4 is not a ratio of two integers so its irrational
5/9 is the ratio of 5 and 9 so its rational
18 is 18/1 and is the ratio of 18 and 1 so its rational