Match f(x) with its graph. Assume that a and b are constants with 0 < a < 1 < b.f(x) = xa
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.110 × 87 = 957087 × 110 = 9570This is an example of the 
.
A. commutative property of addition B. commutative property of multiplication C. associative property of addition D. associative property of multiplication
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(8
+ 5)(9
+ 2)
A. 82
+ 16
B. 226 + 61
C. 98
D. 10 + 72
+ 16
Find the unit vector in the direction of the given vector. Write your answer in the indicated form.Let u = 
. Find the unit vector in the direction of u, and write your answer as a linear combination of the standard unit vectors i and j.
A. 
B. 
i - 
j
C. 
i - 
j
D. 
i - 
j
Use the given trigonometric function value of ? to find the requested trigonometric function value of the acute angle ?. Rationalize the denominators where necessary.sin ? = 
Find sec ?.
A. 
B. 
C. 
D. 