System A: x+3y=-9 2x+y=4. System B: 3x+4y=-9 2x+y=4 1. how can we get system b from system a? Choices: A- Replace one equation with the sum/difference of both equations B- Replace only the left-hand side of one equation with the sum/ difference of the left-hand sides of both equations C- Replace one equation with a multiple of itself D- Replace one equation with a multiple of the other equation 2. Based on the previous answer, are the systems equivalent? In other words, do they have the same solution? a- yes b-no

b) well because you get well

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

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: