Solve the problem.In a certain city, the bus system carried a total of 14,400,000,000 passengers.Write the number in scientific notation.
A. 1.44 × 109
B. 1.44 × 1011
C. 14.4 × 1010
D. 1.44 × 1010
Answer: D
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Find the flux of the curl of field F through the shell S.F = (6 - y)i + (5 + x)j + z2k; S is the upper hemisphere of x2 + y2 + z2 = 81
A. 2? B. 324? C. 162? D. -4?
Graph the inequality and write the solution set using both set-builder notation and interval notation.x ? 7
A. {x|x ? 7}, [7, ?)
B. {x|x ? 7}, (-?, 7]
C. {x|x < 7}, (-?, 7)
D. {x|x > 7}, (7, ?)
Solve the problem.A paper boy collected $7.00, part in nickels and part in dimes. If the number of nickels was 15 more than one-half the number of dimes, how many nickels were there?
A. 40 nickels B. 30 nickels C. 50 nickels D. 5 nickels
Simplify each side of the equation, if possible. Then solve the equation.
- 2 - 5 + 10 = 
- 3n + 6 + 4n
A. n = -28 B. n = 10 C. n = -40 D. n = -10