Answer:
x < 0
Step-by-step explanation:
Answer:
In step one, -8 - 2 should result in -10, not -6.
Step 1: 9ft -6ft= 3ft
Step 2: 7ft -4ft= 3ft
Answer: 3ft + 3ft + 7ft + 9ft + 4ft + 6ft= 32 ft
Bacteria population increases by 9.8% per hour.
Population = (1.098)^hours
Solving this for time we get:<span>
</span><span>
</span><span>Time = log(ending amount / beginning amount) ÷ log (1 + rate)</span>
<span />
Since we must solve the problem for the population to double, we'll say
beginning amount = 100 and ending amount = 200
Time = log(200 / 100) ÷ log (1 + .098)
Time = log(2) ÷ log (1.098)
Time = 0.30102999566 / 0.040602340114
Time =
<span>
<span>
<span>
7.4141045766 Hours </span></span></span>
<span><span><span /></span></span>Time = 7.41 Hours (rounded to nearest hundredth.
Source:
http://www.1728.org/expgrwth.htm
<span><span /></span>
Using the formulas
:
A=2AB+(a+b+c)h
AB=√(s(s﹣a)(s﹣b)(s﹣c)
)
s = (a+b+c) / 2
Solving for A:
A=ah+bh+ch+1
/2 √(﹣a∧4+2(ab)∧2+2(ac)∧2﹣b∧4+2(bc)∧2﹣c∧4)
=2·1.7+3·1.7+2·1.7+1
/2· √(﹣2∧4+2·(2·3)∧2+2·(2·2)∧2﹣3∧4+2·(3·2)∧2﹣24)
≈15.86863
