Use the four-step procedure to solve the variation problem.The amount of gas that a helicopter uses varies directly as 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 4 hours.
A. 8 gallons
B. 40 gallons
C. 36 gallons
D. 45 gallons
Answer: C
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A business pays 6.00% tax on income from Oklahoma and 12% tax on income from Arkansas. The total tax paid is $2,365.00, and the total income is $28,159.00. A: Using O for Oklahoma income and ?A for Arkansas income, write a system of two equations that determine the income from of each of the two states. Round your answers to two decimal places, if necessary.B: How much income was earned in each state? Round your answers to two decimal places, if necessary.
What will be an ideal response?
Which of the following is true for a series resistance circuit?
a. The total resistance is the sum of all the resistances. b. The current through each resistor depends on its individual value. c. The current is the same through all resistors. d. The total resistance is the sum of all the resistances and the current is the same through all resistors. e. The total resistance is the sum of all the resistances and the current through each resistor depends on its individual value.
Provide an appropriate response.Determine: (a) 5!; (b) 
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A radio telescope has a parabolic surface. If it is 1 meter(s) deep and 
wide, how far is the focus from the vertex?
A. 100 m B. 5 m C. 1 m D. 25 m