Find the linearization L(x) of f(x) at x = a.f(x) = 
, a = 0
A. L(x) = 
x + 
B. L(x) = 
x + 
C. L(x) = - 
x + 
D. L(x) = - 
x + 
Answer: C
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The total number I of items that a factory can produce in an hour is proportional to the number N of employees. ? A: Using x to denote the constant of proportionality, write a formula that expresses the proportionality relationship. ? B: Explain in practical terms what the constant of proportionality x means in this setting.
What will be an ideal response?
Solve the quadratic equation.7m2 - 7m = 0
A. 0 B. 1, 0 C. - 1, 0 D. 1, - 1
Find the unknowns on the right side of the partial fraction decomposition.
= 
+ 
A. A = - 
, B = 
B. A = 
, B = - 
C. A = 
, B = - 
D. A = - 
, B = 
Iodine-131 is an isotope that is used to study the functioning of the thyroid gland. This isotope has a half-life (time required for half the material to erode) of approximately 6 days. If a patient is given an injection that contains 13 micrograms of iodine-131, what will be the iodine level in the patient after 8 days? Use the function 
, where A is the amount of the isotope, in micrograms, in the patient after t days. Round to the nearest tenth.
a. 3.9 micrograms b. 5.2 micrograms c. 6.0 micrograms d. 6.8 micrograms e. 7.6 micrograms