8). x=(-1+√22)/2 , x=(-1-√22)/3
9). x=(1+√5)/2 , x=(1-√5)/2
10). x=3 , 1/4
11). x=1/3 , -1
12). x=2+2√3 , 2-2√3
Answer:
of what?
Step-by-step explanation:
Answer:
y = 7 - 2x
Step-by-step explanation:
Note that:
y = height of the candle
x = hours
The candle starts at 7 inches, and can only grow smaller as it is burnt. It also burns in a constant 2 inches per hour. Note that it is "2 inches per hour, or 2 * h (h = hour). It is also burning, or taking away, from the original, or 7. Therefore, y = 7 - 2x is your answer.
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