Find the value of the determinant.
A. -163
B. 39
C. -133
D. 133
Answer: C
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Solve.Two 6-sided dice are rolled. What is the probability that the sum of the two numbers on the dice will be greater than 9?
A. 
B. 
C. 
D. 6
Express the integrand as a sum of partial fractions and evaluate the integral.
A. 1.6 B. 1.96 C. 0.98 D. 3.92
Solve.The pitch P of a musical tone varies inversely as its wavelength W. One tone has a pitch of 433 vibrations per second and a wavelength of 8.4 ft. Find the wavelength of another tone that has a pitch of 480 vibrations per second.
A. 7.6 ft B. 0.00004 ft C. 24,742.9 ft D. 0.13 ft
Solve.Each month a gas station sells x gallons of gas at $1.92/gallon. The cost to the owner of the gas station for each gallon of gas is $1.32. The monthly fixed cost for running the gas station is $37,000. Write an equation that relates the monthly profit, in dollars, to the number of gallons of gasoline sold. Then use the equation to find the monthly profit when 75,000 gallons of gas are sold in a month.
A. P = 0.60x + 37,000; $82,000 B. P = 1.32x - 37,000; $62,000 C. P = 1.92x - 37,000; $107,000 D. P = 0.60x - 37,000; $8000