For the given functions f and g, find the requested function and state its domain. Write the domain in interval notation.f(x) = 3x + 5; g(x) = 4x - 3;
Find 
.
A. 
(x) = 
; (-?, 
? 
, ?)
B. 
(x) = 
; (-?, 
? 
, ?)
C. 
(x) = 
; (-?, 
? 
, ?)
D. 
(x) = 
; (-?, 
? 
, ?)
Answer: A
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The function s gives the displacement (in ft) of an object as a function of time (in seconds). Calculate values of the average velocity for the given values of t and find the instantaneous velocity at the indicated value of t by noting the limit of the average velocities.s = 2t2 - 4; when t = 6; use values of t of 5.5, 5.9, 5.99, 5.999
A. Average velocities: 23.5, 23.9, 23.99, 23.999
v = 24 ft/s
B. Average velocities: 23, 23.8, 23.98, 23.998
v = 24 ft/s
C. Average velocities: 11.5, 11.9, 11.99, 11.999
v = 12 ft/s
D. Average velocities: 11, 11.8, 11.98, 11.998
v = 12 ft/s
Perform the indicated operation. Write the answer in scientific notation.(27 × 108) ÷ (5.4 × 10-9)
A. 5 × 1017 B. 5 × 10-1 C. 10 × 1017 D. 10 × 10-1
Plot and label the points indicated by the coordinate pairs.A(-6, -3), B(-5, 3)
A. 
B. 
C. 
D. 
Factor.x2 - 10xy + 21y2
A. (x - 7y)(x + 3y) B. (x - 7y)(x - 3y) C. (x + 7y)(x - 3y) D. (x + 7y)(x + 3y)