Solve the problem.Dr. Wong can see 9 patients in 3 hours. At this rate, how long would it take her to see 27 patients?
A. 9 hr
B. 27 hr
C. 8 hr
D. 81 hr
Answer: A
Mathematics
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Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)1.7x + 2.2y - 1.8z = 3.84.6x - 6.8y + 1.3z = -4.33.4x + 4.3y + 4.4z = 10.1
A. {(1.8, 2.6, 0.7)} B. {(0.4, 0.7, 0.2)} C. {(3.6, 5.2, 1.3)} D. {(0.9, 1.3, 0.3)}
Mathematics
Solve the inequality. Express your answer using interval notation.x(9x - 6) ? (3x + 6)2
A. [
, ?)
B. (-?, - 
]
C. (-?, - 
]
D. [- 
, ?)
Mathematics
Determine which numbers in the set are whole numbers.
a. 
b. 18, -5, 0, -8, 4
c. 
d. 18, 0, 4
e. 18,4
Mathematics
The graph of a piecewise-defined function is given. Write a definition for the function.
A. f(x) = 
B. f(x) = 
C. f(x) = 
D. f(x) = 
Mathematics