Find the domain and range of the function.f(x) = 
A. D: [0,?), R: (-?,?)
B. D: (-?,?), R: 
C. D: [0,?), R: 
D. D: (-?,0], R:(-?,0]
Answer: C
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Calculate the Riemann sum 
?xi for the given data.f(x) = x + 4; P: 2 < 2.75 < 3.25 < 4.5 < 5.5; 
= 2, 
= 3, 
= 4.25, 
= 5
A. 28 B. 27.7216 C. 27.3125 D. 26.0125
Provide an appropriate response.The random variable X has density function f(x) = 
Find P(X ? 4). Give answer in terms of e.
What will be an ideal response?
Solve the problem.Each box of matches contains 120 matches. Boxes of matches are shipped in cartons. Each carton contains 5 boxes of matches. How many matches are in each carton?
A. 600 matches per carton B. 125 matches per carton C. 24 matches per carton D. 60 matches per carton
Factor the polynomial completely.5r3 - 320
A. 5(r - 20)(r2 + 20r + 80) B. 5(r - 4)(r2 - 4r + 16) C. 5(r - 4)(r2 + 4r + 16) D. 5(r + 4)(r2 - 4r + 16)