Use a formula to solve the problem.What is the perimeter of a rectangle of length 20 ft and width 9 ft?
A. 49 ft
B. 29 ft
C. 58 ft
D. 116 ft
Answer: C
Mathematics
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Solve the problem.Find the mass of a tetrahedron of density 
bounded by the coordinate planes and the plane 
.
A. 60
B. 45
C. 50
D. 
Mathematics
Graph the function.f(t) = sin 4?t 
A. 
B. 
C. 
D. 
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Perform the matrix operation.Let C = 
and D = 
. Find C - 2D.
A. 
B. 
C. 
D. 
Mathematics