Simplify the expression. Assume that all variables are positive when they appear.
A. 23
B. 
C. 
D. 23
Answer: C
Mathematics
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Evaluate the integral by changing the order of integration in an appropriate way.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics
Identify the sampling technique used to obtain a sample.In order to determine the expected number of broken eggs per carton, an egg packaging worker selects a group of 40 cartons that come off a particular conveyor belt and counts the number of broken eggs within these cartons.
A. Cluster sampling B. Stratified sampling C. Convenience sampling D. Random sampling
Mathematics
Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = i + 4j,
w = -3i + j
A. v1 = - 
i + 
j, v2 = 
i + 
j
B.
v1 = -  i +  j, v2 =  i +  j |
C. v1 = -
i + 
j, v2 = 
i + 
jD. v1 = -
i + 
j, v2 = - 
i + 
j
Mathematics