Solve the system of equations using determinants.7x + 8y = 42x + 3y = 2
A. (
, - 
)
B. (- 
, 
)
C. (- 
, 
)
D. (
, 
)
Answer: B
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Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = 9xi + 9yj + 2k , S is the surface cut from the bottom of the paraboloid z = x2 + y2 by the plane 
direction away from the z-axis
A. 711? B. 747? C. 75? D. -1422?
R1 = 150 ê, R2 = 270. The resistor network is connected to a voltage source which causes a current flow of 12 mA to flow through the circuit.
Find VR and VR .
1 2
Solve the problem.The number of people running a local race has increased dramatically during the past years. The polynomial 
models the number of people that run the race each year, where 
corresponds to 2000 and 
corresponds to 2010. Use the polynomial to estimate the number of runners in 
A. 1174 runners B. 347 runners C. 1867 runners D. 587 runners
Make the indicated conversion within metric units of mass.1.81 kilograms to grams
A. 1810 g B. 0.00181 g C. 0.0181 g D. 181 g