Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.Find the center of mass of the rectangular solid of density 
defined by 
, 
, 
.
A. 
= 
, 
= 3, 
= 2
B. 
= 
, 
= 
, 
= 1
C. 
= 2, 
= 4, 
= 
D. 
= 1, 
= 2, 
= 
Mathematics
Evaluate the expression.|5 - 10| + |11 + 5|
A. -21 B. -11 C. 11 D. 21
Mathematics
Decide whether the ordered pair is a solution of the given system.(-1, -3)x + y = -4x - y = 2
A. Yes B. No
Mathematics
Write a system of equations to describe the situation. Do not solve the system.One number is 6 more than another number. If you add 10 to 6 times the first number, the result is 7 times the second number.
A. 
B. 
C. 
D. 
Mathematics