Answer:
13.2 years
Step-by-step explanation:
The decay rate is 15%, so the decay factor is 1 - 15% = 0.85. Then the exponential equation for the value is ...
v(t) = 85000·0.85^t
We can set v(t) = 10,000 and solve for t:
10000 = 85000·0.85^t
10000/85000 = 0.85^t . . . . divide by 85000
log(2/17) = t·log(0.85) . . . . . .reduce fraction, take logs
t = log(2/17)/log(0.85) ≈ 13.2
It will take about 13.2 years for the value to fall below $10,000.
_____
Such a question is nicely answered by a graphing calculator.
Answer:
y=2/3+4
Step-by-step explanation:
This equation is in Slope-Intercept form, the most common, therefore, y=-2/-3+4 just needs to apply the - x - = + rule to get, y=2/3+4
Converting a fraction such as 37/100 into<span> a percent is pretty easy. All </span>you have<span> ... </span>When you enter 37/100 into the above formula<span>, </span>you get<span> (</span>37/100)*100 which calculates<span> to: </span>37<span>% Note: When Research Maniacs </span>calculated 37/100<span> as a percent, we rounded the answers to nine digits after the decimal point </span>
Answer:
x = ±1
Step-by-step explanation:
=> 7x² = 13-6
=> 7x² = 7
<em>Dividing both sides by 7</em>
=> x² = 1
<em>Taking sqrt on both sides</em>
=> x = ±1
