Answer:
Step-by-step explanation:
Eight
590 = 1800 e^(-0.4t) Divide by 1800
0.32778 = e^(-0.4t) Put the value for e in the denominator.
0.32778 = 1 / e^(0.4t) Notice the sign's gone. Multiply both sides by e^(0.4t)
0.32778 *e^(0.4t) = 1 Divide by 0.32778
e^(0.4t) = 3.0508 Take the natural log of both sides.
0.4t = 1.11542 Divide both sides by 0.4
t = 2.78855
You should put this in the original equation to see if it checks. It does.
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Nine
3^(3 - 3x) + 6 = 42 Subtract 6 from both sides
3^(3 - 3x) = 36 Take the log of both sides.
(3 - 3x) ln(3) = ln 36
(3 - 3x) *1.098612 = 3.58352 Divide by 1.098612
3 - 3x = 3.26186 Subtract 3 from both sides
- 3x = 0.26186 Divide by - 3
x = - 0.087287
Yards because that's the longest measurement tool
Answer:
4527
Step-by-step explanation:
total amount students = 4527+1641
=6168
amount of students who did not win a medal = total - amount who won a medal
= 6168-1641
=4527
Answer:
The answer is : 20+5-39= <u><em>-14</em></u> and 5+24-2= <u><em>27</em></u>
Hope this helps!!!!
Step-by-step explanation:
3 and 1 eighths of the yard still needs to be mowed.<span />
