Solve the system using Gaussian elimination.
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Please enter your answer in the form x = , y = , z = .
What will be an ideal response?
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Determine whether or not the function is linear. If it is, determine the slope and interpret it.The height of an object t seconds after being dropped from an altitude of 249 feet is given by the function h(t) = -16t2 + 249.
A. Not linear B. Linear; -16; The height of the object increases 16 feet each passing second. C. Linear; -16; The height of the object decreases 16 feet each passing second. D. Linear; 249; The height of the object decreases 249 feet each passing second.
Solve the problem. Round to one decimal place if needed.A flagpole casts a shadow of 35 feet. Nearby, a 9-foot tree casts a shadow of 2 feet. What is the height of the flagpole?
A. 630 ft B. 157.5 ft C. 7.8 ft D. 0.5 ft
Find the center and radius of the circle with the given equation. x2 + (y + 7)2 = 121
A. Center (-7, 0), r = 121 B. Center (0, -7), r = 11 C. Center (0, -7), r = 121 D. Center (-7, 0), r = 11
Evaluate the arithmetic expression.  figure 1.png)
(a) 20 (b) 27 (c) -36 (d) 36 (e) none of these