Solve the problem.Evelyn measured two rooms of her apartment and found that she needed 80.8 square meters of wallpaper for one room and 39.6 square meters for the other. How much wallpaper did she need?
A. 120.5 m2
B. 120.4 m2
C. 130.4 m2
D. 240.8 m2
Answer: B
Mathematics
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Indicate the quadrant in which the point belongs.(-4, -14)
A. III B. II C. I D. IV
Mathematics
Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = (cos x)x
A. ln x(cos x)x - 1 B. ln cos x - x tan x C. (cos x)x (ln cos x - x tan x) D. (cos x)x (ln cos x + x cot x)
Mathematics
Simplify.
A. u
B. 
C. 
D. u
Mathematics
Find the product.
× 10
A. 
B. 2
C. 50
D. 
Mathematics