Express the statement as an equation involving the indicated variables.The perimeter P of a rectangle is twice the sum of its length l and its width w.
A. P = l + w
B. P = 2(l + w)
C. P = 2lw
D. P = lw
Answer: B
Mathematics
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A. 5.0 × 1031 bacteria B. 2.0 × 10-30 bacteria C. 2.0 × 1030 bacteria D. 5.0 × 10-31 bacteria
Mathematics
Simplify the algebraic expression.-3x + 7x
A. -10x B. 4 + x C. -21x D. 4x
Mathematics
Solve the problem.The point of intersection of three or more edges of a polyhedron is called a(n) 
.
A. face B. edge C. polyhedron D. vertex
Mathematics
Simplify the expression. Write the answer using positive exponents.(4p3)-3
A. 
B. 
C. -64p9
D. 
Mathematics