$\bf A(n)=-3\cdot 2^{n-1}\\\\
-------------------------------\\\\
\textit{first one}\qquad A(1)=-3\cdot 2^{1-1}
\\\\\\
\textit{fourth one}\qquad A(4)=-3\cdot 2^{4-1}
\\\\\\
\textit{eighth one}\qquad A(8)=-3\cdot 2^{8-1}$

8 0

3 years ago

Evaluate the expression when a= 4 and b= -7. <br> -9a+b

Helen [10]

Answer:

-43

Step-by-step explanation:

So first things first you will multiply -9 by 4 and that gives you -36, Next you will add -7 to -36 which gives you -43.

$-9(4)+(-7)\\-36+(-7) \\= -43$

Hope this helps :D

4 0

3 years ago

Read 2 more answers

Solve the equation plz....................................

Kryger [21]

To find z, you have to divide -3 and 10, which you would get an odd number. That will be your answer for z :)

3 0

3 years ago

Read 2 more answers

PLEASE HELP WITH ALL QUESTIONS WILL GIVE BRAINLIEST AND WILL GIVE 33 POINTS

MrMuchimi

uh where the question?

6 0

3 years ago