Solve the problem.An electric company has the following rate schedule for electricity usage in single-family residences:Monthly service charge $4.93Per kilowatt service charge1st 300 kilowatts$0.11589/kWOver 300 kilowatts$0.13321/kWWhat is the charge for using 300 kilowatts in one month?What is the charge for using 375 kilowatts in one month?Construct a function that gives the monthly charge C for x kilowatts of electricity.
What will be an ideal response?
$39.70
$49.69
C(x) = 
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Determine whether the given function satisfies a Laplace equation.f(x, y) = cos(x) sin(-y)
A. Yes B. No
Solve the problem. Round your answer to the nearest tenth, if necessary.A jet plane traveling at a constant speed goes 1200 mi with the wind, then turns around and travels for 1000 mi against the wind. If the speed of the wind is a constant 50 mph, and the total flight took 4 hours, find the speed of the plane.
A. 550 mph B. 435 mph C. 525 mph D. 605 mph
Using a calculator, solve the following problems. Round your answers to the nearest tenth.A ship leaves port with a bearing of N 34° W. After traveling 26 miles, the ship then turns 90° and travels on a bearing of S 56° W for 8 miles. At that time, what is the bearing of the ship from port?
A. N 16.9° W B. N 17.1° W C. N 73.1° W D. N 51.1° W
Find the length of the curve.x = et - 10t, y = 4
et/2, 0 ? t ? 1
A. e + 9 B. 10 C. e + 10 D. e