$\left\{\begin{array}{ccc}a_1=1\\a_2=2\\a_n=a_{n-1}+a_{n-2}&for\ n\geq3\end{array}\right\\\\a_3=a_{3-1}+a_{3-2}=a_2+a_1\to a_3=2+1=3\\\\a_4=a_{4-1}+a_{4-2}=a_3+a_2\to a_4=3+2=5\\\\a_5=a_{5-1}+a_{5-2}=a_4+a_3\to a_5=5+3=8\\\vdots$

6 0

3 years ago

The house keeping staff

kvasek [131]

Answer:

In general, housekeeping departments are in charge of keeping buildings clean. They sweep, mop, dust, vacuum and clean the bathrooms. They also clean windows and public areas, and often remove trash and deposit it in the building's dumpsters.

Hope this helps :)

4 0

4 years ago

Percent decrease from 145 to 132. Round to the nearest percent

o-na [289]

132/145 × 100% = 91.03%

i am a mathematics teacher. if anything to ask please pm me

5 0

3 years ago

3(x + 1) + 2 < 11<br> Solve each inequality and graph the solution

maxonik [38]

Answer:

3x+3+2<11

Step-by-step explanation:

3x<11+3+2

3x<16

so now you divide 3 by the co-efficient

3x/3<16/3

so now 3 council 3 then you get x

x<16/3

x<5

now x is equal to 5

7 0

3 years ago