Multiply.-0.4 ? (-0.7)
A. -0.3
B. 0.28
C. -1
D. -1.1
Answer: B
Mathematics
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A. 141,899 B. 141,799 C. 152,899 D. 142,899
Mathematics
Solve the equation for the interval [0, 2?).4 sin2 x - 1 = 0
A. 
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, 
B. 
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C. 
, 
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D. 
, 
, 
, 
Mathematics
Solve graphically. Round solutions to three decimal places, where appropriate.3x2 - 7 = 8x
A. -0.644, 3.411 B. -0.704, 3.351 C. -0.744, 3.311 D. -0.694, 3.361
Mathematics
Solve the problem.Hooke's law is applicable to idealized (linear) springs that are not stretched or compressed too far. Consider a nonlinear spring whose restoring force is given by F(x) = 17x - 0.2x3, for |x| ? 8. How much work is done in compressing the spring from its equilibrium position (x = 0) to x = -0.5? Round to two decimal places when appropriate.
A. 4.24 J B. 339.2 J C. 678.4 J D. 2.12 J
Mathematics