12.4B Lesson

​Take out your yellow packet and find section 12.4B

​Of course we have a formula so you don't have to find all the terms...

Multiple Choice

What is the sum?

(plug it in your calculator)

• 7.037 x 10¹³

• -9.4143 x 10¹⁰

• 2.8243 x 10¹¹

• 3.7657 x 10¹¹

​What if they give it to you in Sigma notation??

Multiple Choice

What is a₁ and r?

$$\sum_{n=1}^{16}\ 5\left(3\right)^{n-1}$$

• a₁ = 5 and r = 3

• a₁ = 3 and r = 5

• a₁ = 16 and r = 3

• a₁ = 5 and r = 16

​Options for your assignment:

Do the WS in your packet.

or

Do the quizizz here:
https://quizizz.com/join?gc=36021488