A woman entering an outside glass elevator on the ground floor of a hotel glances up to the top of the building across the street and notices that the angle of elevation is 50°. She rides the elevator up three floors (60 feet) and finds that the angle of elevation to the top of the building across the street is 34°. How tall is the building across the street? (Give your answer to the nearest foot.)
?
A. 139 ft
B. 138 ft
C. 141 ft
D. 136 ft
E. 142 ft
Answer: B
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Graph the function. State the domain and range.y = 2x2 - 8x + 3
A. 
Domain: ? Range: y ? - 5
B. 
Domain: ? Range: ?
C. 
Domain: ? Range: y ? - 5
D. 
Domain: ? Range: y ? - 5
Find the special products using patterns.(x + 4)(x - 4)
A. x2 - 8 B. x2 - 8x - 16 C. x2 + 8x - 16 D. x2 - 16
Which of the following is not a reason for strategic alliances?
A. sharing significant R&D investments B. outsourcing for low costs and high quality output C. blocking foreign competitors from domestic markets D. building economies of scale
Find the indicated probability. Round as indicated.A company purchases shipments of machine components and uses this acceptance sampling plan: Randomly select and test 30 components and accept the whole batch if there are fewer than 3 defectives. If a particular shipment of thousands of components actually has a 3% rate of defects, what is the probability that this whole shipment will be accepted? Estimate the probability to four decimal places if necessary.
A. 0.5389 B. 0.9399 C. 0.1669 D. 0.0482