Add.-48 + 56
A. -8
B. 104
C. 8
D. -104
Answer: C
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Use the Comparison Test to determine whether the improper integral converges or diverges.
A. converges B. diverges
Solve the problem.A church steeple casts a shadow 109 ft long, and at the same time a 9.0-ft post cast a shadow 7.0 ft long. How high is the steeple? Round to the nearest unit.
A. 140 ft B. 85 ft C. 112 ft D. 8 ft
Simplify the expression. Use positive exponents. Assume variables represent nonzero real numbers.
A. 
B. 
C. y12
D. 
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