$\left\{\begin{array}{ccc}a_1=1\\a_2=2\\a_n=\dfrac{1}{2}(a_{n-1}\cdot a_{n-2})\end{array}\right\\\\\text{thereofre}\\\\a_3=\dfrac{1}{2}(a_2\cdot a_1)=\dfrac{1}{2}(2\cdot1)=\dfrac{1}{2}(2)=1\\\\a_4=\dfrac{1}{2}(a_3\cdot a_2)=\dfrac{1}{2}(1\cdot2)=\dfrac{1}{2}(2)=1\\\\a_5=\dfrac{1}{2}(a_4\cdot a_3)=\dfrac{1}{2}(1\cdot1)=\dfrac{1}{2}(1)=\dfrac{1}{2}$

7 0

3 years ago

I need help as soon as possible please

tatiyna

The centroid divides the median into a 2:1 ratio. So, 9x-9=4x+16. We solve and get x=5. Therefore, OB is 36, and BE is half, 18.

6 0

2 years ago

SOMEONE PLEASE HELP ME ASAP PLEASE!!!

PolarNik [594]

Answer:

plane

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Kevin went to see his favorite sports team play his car can go 300 miles on one tank of gas if he used 40% of a full tank how ma

ZanzabumX [31]

To find the percentage of something you must multiply it by that number divided by 100. So if it were 25% then you would times 300 by 0.25.
in this case though it is 40% of three hundred, so you would make it a decimal and times 300 by 0.4. which would result in 120 miles

3 0

3 years ago