Solve and check.An expression to approximate the windchill temperature (WCT) is  where T is the temperature in degrees Fahrenheit and V is the wind speed in miles per hour. Find the WCT, rounded to the nearest whole number, if the temperature is 44°F and the wind speed is 

A. 37°F
B. 39°F
C. 46°F
D. 42°F


Answer: D

Mathematics

You might also like to view...

Use the method of variation of parameters to solve the differential equation.y'' + y = sec2 x

A. y = C1 cos x + C2 sin x - 1 + cos x ln|sec x + tan x| B. y = C1 cos x + C2 sin x - 1 + sin x ln|sec x + tan x| C. y = C1 cos x + C2 sin x - sec x sin x + cos x ln|sec x + tan x| D. y = C1 cos x + C2 sin x - sec x sin x + sin x ln|csc x + cot x|

Mathematics

Rationalize the numerator of each fraction.

A.
B.
C.
D.

Mathematics

Find the area.

A. 345 cm2 B. 45 cm2 C. 225 cm2 D. 161 cm2

Mathematics

Sketch trajectories of solutions of z? = Az given the eigenvalues and associated eigenvectors of A. Classify the origin and assess its stability.

Mathematics