Solve.The amount of gas that a helicopter uses is directly proportional to the number of hours spent flying. The helicopter flies for 2 hours and uses 18 gallons of fuel. Find the number of gallons of fuel that the helicopter uses to fly for 5 hours.
A. 10 gallons
B. 54 gallons
C. 50 gallons
D. 45 gallons
Answer: D
Mathematics
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Perform the indicated operations. Write the answer in the form a + bj.8j + (-2 - j)
A. -2 + 7j B. 2 - 9j C. -2 + 9j D. 2 - 7j
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Find the perimeter (P) of each figure.Trapezoid
A. 50 m B. 435 m C. 94 m D. 35 m
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Find factors or multiples as indicated for the number or numbers given.List the first 5 multiples of 7 starting with 0 ? 7 = 0
A. 0 ? 7 = 7; 1 ? 7 = 7; 2 ? 7 = 14; 3 ? 7 = 21; 4 ? 7 = 28; 5 ? 7 = 35 B. 0 ? 7 = 0; 1 ? 7 = 7; 2 ? 7 = 14; 3 ? 7 = 21; 4 ? 7 = 28; 5 ? 7 = 35 C. 0 ? 7 = 0; 1 ? 7 = 8; 2 ? 7 = 9; 3 ? 7 = 10; 4 ? 7 = 11; 5 ? 7 = 12 D. 1 ? 7 = 7; 2 ? 7 = 14; 3 ? 7 = 21; 4 ? 7 = 28; 5 ? 7 = 35
Mathematics
Solve.Let f(x) = 
+ 
. Find x so that f(x) = 1.
A. 120
B. 
C. 
D. 
Mathematics