Evaluate the expression according to the order of operations.[27 - (4 + 6) ÷ 2] - [1 + 9 ÷ 3]
A. 13
B. 15
C. 18
D. 25
Answer: C
You might also like to view...
If a and b are rational numbers, with a ? 0 and b ? 0, and if m and n are integers, determine if the following is true or false. Justify your answer.(ab)-m = 
? 
A. True; (3 ? 1)-2 = 
? 
B. False; (2 ? 1)-2 ? 
? 
Solve the problem.An experienced bank auditor can check a bank's deposits twice as fast as a new auditor. Working together it takes the auditors 22 hours to do the job. How long would it take the experienced auditor working alone?
A. 22 hr B. 33 hr C. 66 hr D. 44 hr
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. 
i + 
j
B. i + j
C. 
i + 
j
D. 
i + 
j
Solve using the multiplication principle.
= -2
A. 7 B. 6 C. -18 D. -1