HELP ASAP Answer two questions about Systems AAA and BBB: System AAA \text{\quad}start text, end text System BBB
\begin{cases}x+3y=-92x+y=4\end{case s}
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x+3y=−9
2x+y=4
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\begin{cases}3x+4y=-92x+y=4\end{cas es}
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3x+4y=−9
2x+y=4
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1) How can we get System BBB from System AAA?
Choose 1
Choose 1

(Choice A)
A
Replace one equation with the sum/difference of both equations

(Choice B)
B
Replace only the left-hand side of one equation with the sum/difference of the left-hand sides of both equations

(Choice C)
C
Replace one equation with a multiple of itself

(Choice D)
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?
Choose 1
Choose 1

(Choice A)
A
Yes

(Choice B)
B
No

Identify the graph of y = ln x + 1.

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution