Solve the problem.The cost, in dollars, of cellular phone service with Econo-phone is given by 
where x is the number of minutes used in one month. Find the slope and y-intercept of the equation and explain what each signifies.
A. 11.80 signifies the cost per minute, and 0.58 signifies the monthly service charge.
B. 0.58 signifies the cost per minute, and 11.80 signifies the monthly service charge.
C. 11.80 signifies the total phone bill, and 0.58 signifies the number of minutes used.
D. 0.58 signifies the hourly phone rent, and 11.80 signifies the cost of the hardware.
Answer: B
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Solve the problem.The resistance R produced by wiring resistors of R1, R2, and R3 ohms in parallel can be calculated from the formula 
If R1, R2, and R3 are measured to be 10 ohms, 7 ohms, and 9 ohms respectively, and if these measurements are accurate to within 0.05 ohms, estimate the maximum percentage error in computing R.
A. 0.36% B. 0.72% C. 0.48% D. 0.60%
Solve.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Determine the distance, w, between the outside walls. Round to one decimal place if necessary.A = 10 m
A. 80 m B. 11 m C. 8.95 m D. 17.9 m
Using AND-gates, OR-gates, and NOT-gates, design a circuit that would find the truth values for the sentence.
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Select the correct circuit.
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(a)
(b)
(c)
What will be an ideal response?
Solve the problem.How long would it take to drive a distance of 10 miles if you drive at a constant speed of 42 miles per hour? Round your answer to the nearest hundredth if necessary.(Distance = Speed × Time)
A. 0.24 hours B. 420.0 hours C. 2.38 hours D. 4.20 hours