Evaluate the expression for the given replacement values.x + y
for x = -31 and y = -51
A. 82
B. 20
C. -82
D. -20
Answer: C
Mathematics
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A graph showing exponential decay is concave down.
Answer the following statement true (T) or false (F)
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Determine whether the number is prime, composite, or neither.15
A. Composite B. Neither C. Prime
Mathematics
Write the decimal as a fraction in lowest terms.0.018
A. 
B. 
C. 
D. 
Mathematics
Find the indicated function.A parking lot measures 160 by 210 feet including a sidewalk of uniform width around its perimeter. Let x represent the width of the sidewalk. What is a function to represent the area of the sidewalk?
A. A(x) = x(3 + (160 - x)) B. A(x) = x(420 + 2(160 - 2x)) C. A(x) = x(420 + 2(2x - 160)) D. A(x) = x(420 + 2(160 - x))
Mathematics