Answer:
-10
Step-by-step explanation:
f(n)= f(n-2)+f(n-1)
• Put n = 3
=> f(3) = f(3-2) + f(3-2)
=> f(3) = f(1) + f(2)
=> f(3) = -6 + -4
=> f(3) = -10
Total cars 12+54 = 66
Find percentage of minivans.
12/66 = 0.1818 or ~18%
~18% of 77
77* 0.1818 = 13.999 ~ 14 rounded
Answer:
D. ![y=\frac{1}{x-5} +2](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B1%7D%7Bx-5%7D%20%2B2)
Step-by-step explanation:
Graph
Pls give Brainliest
Answer:
choice b)
h = 13
g = 18.38 or 13sqrt 2
Step-by-step explanation:
tan 45 = h/13
1 = h/13
h = 13
cos 45 = 13/g
0.7071 = 13/g
g = 18.38
![\bf \begin{array}{|cc|ll} \cline{1-2} \stackrel{x}{year}&\stackrel{y}{dolphins}\\ \cline{1-2} &\\ 1950&12000\\ 2018&3600 \\&\\ \cline{1-2} \end{array}~\hspace{5em}(\stackrel{x_1}{1950}~,~\stackrel{y_1}{12000})\qquad (\stackrel{x_2}{2018}~,~\stackrel{y_2}{3600}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{3600-12000}{2018-1950}\implies \cfrac{-8400}{68}~~\approx~~ \stackrel{\textit{rate of change}}{-123.53}](https://tex.z-dn.net/?f=%5Cbf%20%5Cbegin%7Barray%7D%7B%7Ccc%7Cll%7D%20%5Ccline%7B1-2%7D%20%5Cstackrel%7Bx%7D%7Byear%7D%26%5Cstackrel%7By%7D%7Bdolphins%7D%5C%5C%20%5Ccline%7B1-2%7D%20%26%5C%5C%201950%2612000%5C%5C%202018%263600%20%5C%5C%26%5C%5C%20%5Ccline%7B1-2%7D%20%5Cend%7Barray%7D~%5Chspace%7B5em%7D%28%5Cstackrel%7Bx_1%7D%7B1950%7D~%2C~%5Cstackrel%7By_1%7D%7B12000%7D%29%5Cqquad%20%28%5Cstackrel%7Bx_2%7D%7B2018%7D~%2C~%5Cstackrel%7By_2%7D%7B3600%7D%29%20%5C%5C%5C%5C%5C%5C%20slope%20%3D%20m%5Cimplies%20%5Ccfrac%7B%5Cstackrel%7Brise%7D%7B%20y_2-%20y_1%7D%7D%7B%5Cstackrel%7Brun%7D%7B%20x_2-%20x_1%7D%7D%5Cimplies%20%5Ccfrac%7B3600-12000%7D%7B2018-1950%7D%5Cimplies%20%5Ccfrac%7B-8400%7D%7B68%7D~~%5Capprox~~%20%5Cstackrel%7B%5Ctextit%7Brate%20of%20change%7D%7D%7B-123.53%7D)
-8400/68 simplifies to to -2100/17, dolphins/year, so 2100 less dolphins every 17 years.
and we can just divide those to get the decimal amount of -123.53, which means, 123.53 less dolphins every year.
of course, there's no such a thing as 0.53 of a dolphin, so, we can say "about" 123 less dolphins per year.