4) the diameter of the larger circle is 20.4 cm. the diameter of the smaller circle is 10.8 cm.

what is the best approximation for the area of the shaded region?

use 3.14 to approximate pi.

72.3 cm²

235.1 cm²

289.4 cm²

326.7 cm²

kindly see the attached photo.

its 8

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: