Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? Let x be the magnitude of an earthquake (on the Richter scale), and let y be the depth (in kilometers) of the quake below the surface at the epicenter. Suppose a random sample of earthquakes gave the following information.
x
2.5
4
3.40
4.4
2.4
y
5.2
10.3
10.8
10.3
8.3
Draw the line that best fits the data whose scatter diagram is given below.
A.
B.
C.
D.
E.
Answer: E
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Sketch the line with the given slope that passes through the indicated point.Slope = 
; line passes through the point (7, 5)
A. 
B. 
C. 
D. 
Solve the problem.While shopping for a party, June bought 1
pounds of hamburger, 
of chicken, and 2
pounds of ham. How much meat did she buy?
A. 2
lb
B. 
lb
C. 9
lb
D. 
lb
Use the square root property to find all real or imaginary solutions to the equation.6z2 - 216 = 0
A. {±7} B. {6} C. {±6} D. {110.5}
Solve the problem.A drug is injected into a patient and the concentration of the drug is monitored. The drug's concentration, C(t), in milligrams per liter after t hours is modeled by C(t) = 
.Estimate the drug's concentration after 2 hours. (Round to the nearest hundredth.)
A. 0.98 milligrams per liter B. 1.71 milligrams per liter C. 0.92 milligrams per liter D. 1.77 milligrams per liter