Solve.
= 
A. 2.1
B. 5.5
C. 2.2
D. 6.7
Answer: C
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Find the value of r and determine if a correlation exists at the indicated level of significance.
?? = 0.01
A. r = 0.9418; Correlation does not exist. B. r = 0.9657; Correlation exists. C. r = 0.9646; Correlation exists. D. r = 0.9353; Correlation does not exist.
Write as a decimal.70.4%
A. 0.594 B. 0.0704 C. 7.04 D. 0.704
Solve the problem.A pendulum bob swings through an arc 50 inches long on its first swing. Each swing thereafter, it swings only 72% as far as on the previous swing. What is the length of the arc after 11 swings? Round your answer to two decimal places, if necessary.
A. 0.97 inches B. 1.35 inches C. 360 inches D. 1.87 inches
The demand for a product varies from 125,000 units at $125 per unit to 275,000 at $35 per unit. Also, 287,500 could be supplied at $80 per unit, whereas only 193,750 could be supplied for $5 each. Find the equilibrium point for the system. ?
A. (35, 275,000) B. (15, 275,000) C. (80, 287,500) D. (50, 250,000) E. (5, 193,750)