Let f(x) = -4x + 5. Find f .
a. 3
b. 2
c. -2
d.1
a. 3
Mathematics
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Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A fossilized leaf contains 25% of its normal amount of carbon 14. How old is the fossil (to the nearest year)? Use 5600 years as the half-life of carbon 14.
A. 2320 B. 25,959 C. 11,180 D. 34,818
Mathematics
Solve the equation.4x = 16
A. {3} B. {1} C. {4} D. {2}
Mathematics
Divide.
A. 274 B. 0.000274 C. 0.00274 D. 2740
Mathematics