<span>B is the answer as the square root of 2 times the negative square root of 2 would be -2, which is a rational number.</span>
Assume that the rule connecting height of the candle to time is a linear one. If you do, then we have to find the equation of this line, and then use this equation to predict the height of the candle after 11 hours.
Two points on this line are (6,17.4) and (23, 7.2). The slope is thus
7.2-17.4 -6
m = --------------- = ----------- or -3/5.
23-6 10
Find the equation of the line. I'm going to use the slope-intercept formula:
y = mx + b => 7.2 = (-3/5)(23) + b. Solving for b, b = 21.
Now we know that y = (-3/5)x + 21
Let x=11 to predict the height of the candle at that time.
y = (-3/5)(11) + 21 = 14.4 inches (answer)
Money spent by Americans last year=$1,180-6.8% of $1,180
=$1099.76
So the question is to estimate the value of g(1.95) and g(2.05). So by calculating i came up with a values of both the given and here are the following:
G(1.95) = -3.8 while the G(2.05) is 4.2.
I hope you are satisfied with my answer
Answer:
You would need 23 inches to build it