Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.1.6x - 0.1y - 3.9z = 1.74.6x - 7.0y - 1.6z = -5.04.4x - 4.5y - 4.4z = -4.1
A. (-22.3, -11.8, -9.3)
B. (-89.3, -47.3, -37.2)
C. (-178.6, -94.6, -74.3)
D. (-44.6, -23.7, -18.6)
Answer: A
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It may be appropriate to model data using linear regression if the data points nearly fall on a straight line.
Answer the following statement true (T) or false (F)
Solve the problem. Assume all numbers are approximate unless otherwise stated or the number has been determined by a definition or counting process.The formula for finding the volume of a square pyramid is V = 
s2h, where the s is the side of the base and h is the height. Determine the volume of a 47 cm high pyramid with sides of length 33.45 cm.
A. 17,530 cubic cm B. 20,000 cubic cm C. 18,000 cubic cm D. 25,000 cubic cm
Graph the linear equation.y = 3x + 2
A. 
B. 
C. 
D. 
Find all cube roots of the complex number. Leave answers in trigonometric form.-3
+ 3i
A. 
cis 50°, 
cis 170°, 
cis 290°
B. 
cis 70°, 
cis 190°, 
cis 310°
C. 
cis 70°, 
cis 190°, 
cis 310°
D. 
cis 50°, 
cis 170°, 
cis 270°