Page 356 - Algebra 1

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Astronomy The table shows the sidereal periods (the time it takes for a planet to orbit the sun) for the 8 planets of our solar system. What is the mean time it takes a planet in our solar system to revolve around the sun? What is the median time?
Planet
Sidereal Period (in days)
Mercury
88
Venus
225
Earth
365
Mars
687
Jupiter
4,329
Saturn
10,753
Uranus
30,660
Neptune
60,150
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Multiple Choice Which of the following graphs is correct for -3 ≤ y? A B
-6 -4 -2 0 -6 -4 -2 0 CD
-6 -4 -2 0 -4 -2 0
Generalize How can the graph of an inequality show if a number is in the
solution set?
Find the percent of increase or decrease to the nearest percent if the original price was $48,763 and the new price is $39,400.
Identify the slope and y-intercept in the equation of a line given below. 1.5x + 3y - 6 = 0
Simplify the rational expression, if _possible. Identify any excluded values. 2k + 6
_k + 2 _
Water Polo A water-polo pool is 50x + 150 meters long and 40x meters wide. Find
the perimeter of the pool.
Error Analysis Two students simplify the expression _y + 4 . Which student is correct? y-2
Explain the error.
3x + 5 3x + 5
Student A
y+4 _
y-2
cannot be simplified
Student B
y+4 _
y-2 y+4
_ y-2
_4 -2
-2
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