Which equation demonstrates the multiplicative identity property?
( -3 + 5 i) + 0 = -3 + 5 i
( -3 + 5 i ) (1) = -3 + 5 i
( -3 + 5 i) ( -3 + 5 i) = - 16 - 30 i
( -3 + 5 i) (3 -5 i) = 16 + 30 i

( -3 + 5 i ) (1) = -3 + 5 i

Step-by-step explanation:

The multiplicative identity property means that you can multiply 1 to any number and it keeps its identity which mean the number stays the same.

According to the previous definition, we will check the options to find which number is multiplied by 1

so, the answer is the second option:

( -3 + 5 i ) (1) = -3 + 5 i

So, ( -3 + 5 i ) is multiplied by 1 and the result is the same number.

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: