Solve the problem.Brandon can paint a fence in 12 hours and Elaine can paint the same fence in 11 hours. How long will they take to paint the fence if they work together?
A. 5
hr
B. 5
hr
C. 11
hr
D. 5
hr
Answer: B
Mathematics
You might also like to view...
Graph the inverse of the function plotted, on the same set of axes. Use a dashed curve for the inverse.
A. 
B. 
Function is its own inverse.
C. 
D. 
Mathematics
Evaluate the second derivative of the function for the given value of x.f(x) = 2x3 + 3x2 + 7x + 2, x = 2
A. 24 B. 43 C. 30 D. 18
Mathematics
Use logarithmic differentiation to find the derivative of y.y = x(x - 7)(x - 1)
A. 1
B. x(x - 7)(x - 1)(lnx + ln(x - 7) + ln(x - 1))
C. 
+ 
+ 
D. x(x - 7)(x - 1)
Mathematics
Solve the equation in the complex number system.x2 + 144 = 0
A. {12} B. {12i} C. {-12, 12} D. {-12i, 12i}
Mathematics