Solve.
= x - 1
A. -3
B. 4
C. -3, 4
D. ?
Answer: B
Mathematics
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Find the gradient field F of the function f.f(x, y, z) = 
7
A. F = 7
6i + 
j + 7
k
B. F = 7
6i + 
j - 7
k
C. F = 7
6i + 
j + 7
k
D. F = 
i + 
j - 7
k
Mathematics
Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics
Provide an appropriate response.A circle graph is divided into two or more sections to give a visual picture of how some whole quantity is being divided.
A. True B. False
Mathematics
In a survey of the number of DVDs in a house, the table shows the probabilities. 
Find the probability of a house having 3 or more DVDs.
A. 0.83 B. 0.05 C. 0.57 D. 0.38
Mathematics