Simplify.
A. 2
B. 2(a - 5b)
C. 1
D. 
Answer: A
Mathematics
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Solve.2n2 = -10n - 5
A. 
B. 
C. 
D. 
Mathematics
Solve the given differential equation (where the function is subject to the given conditions) by using Laplace transforms.y" - 16y = 20e5t, y
= 5, y' 
= 0
A. y = 
e-4t + 
e5t
B. y = 
e-4t + 
e5t
C. y = 
e4t + 
e-5t
D. y = 
e-4t + 
e-5t
Mathematics
Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. 2.5 B. 20 C. 144.4 D. 10
Mathematics
Solve.A real estate agent has a rectangular lot available that measures 40 meters by 30 meters. Find its area in square feet. Round to the nearest hundredth, if necessary.
A. 12,910.08 sq ft B. 1200 sq ft C. 108 sq ft D. 129,100.8 sq ft
Mathematics