Find only the rational zeros.f(x) = x4 + 25
A. 
, - 
B. 0
C. 5, -5, 
, -
D. No rational zeros
Answer: D
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Use the product rule to simplify the expression.y9 ? y5 ? y-2
A. y90 B. y14 C. y12 D. y-90
Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
A. x = -1, y = 5, z = 2; (-1, 5, 2) B. x = 1, y = 5, z = 3; (1, 5, 3) C. inconsistent D. x = 1, y = 3, z = 5; (1, 3, 5)
Solve the problem.In Country X, estimates of future welfare expenditures in billions of dollars can be modeled by 
where 
Estimate the years when welfare expenditures will range from 83 to 143 billion dollars.
A. After 2027 B. Between 2027 and 2029 C. Between 2017 and 2020 D. Between 2019 and 2020
Solve the application problem.The table shows a relation between the number of visitors that an outdoor park received on five different days and the high temperatures on those days. If a researcher believes the temperature affects the number of visitors, what are the independent and dependent variables? Is the relation a function?
A. independent: temperature, dependent: number of visitors; yes B. independent: number of visitors, dependent: temperature; yes C. independent: temperature, dependent: number of visitors; no D. independent: number of visitors, dependent: temperature; no