Find the probability.A calculator requires a keystroke assembly and a logic circuit. Assume that 85% of the keystroke assemblies and 78% of the logic circuits are satisfactory. Find the probability that a finished calculator will be satisfactory. Assume that defects in keystroke assemblies are independent of defects in logic circuits.
A. 0.6630
B. 0.8200
C. 0.7225
D. 0.6084
Answer: A
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The following table shows average rice yield, in tons per hectare, in Asia ?t years since 1980.
510152025
3.323.613.733.954.11?
Use the average rate of change to estimate the yield in 1993.00.
?
A. 4.37 tons per hectare B. 3.68 tons per hectare C. 3.75 tons per hectare D. None of the above
Graph the function using its vertex, axis of symmetry, and intercepts.f(x) = -10x2 - 2x - 3
A. vertex 
intercept (0, -3) 
B. vertex 
intercept (0, -3)
C. vertex 
intercept (0, 3) 
D. vertex 
intercept (0, 3) 
Give the ordered pairs for the points labeled on the graph.
A. G(7, 2); H(6, -5) B. G(2, 30); H(6, -5) C. G(7, 6); H(2, 6) D. G(7, 2); H(-5, 6)
Solve the system by graphing.
A. (4, 5) B. (6, -5) C. Inconsistent D. (5, -4)