Use the graph to determine the domain and range of the function. 
A. domain: {x|x > 0}
range: {y|y ? 4}
B. domain: {x|x ? 4}
range: {y|y > 0}
C. domain: {x|x ? 4}
range: {y|y ? 0}
D. domain: {x|x ? 0}
range: {y|y ? 4}
Answer: B
Mathematics
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Graph the function.f(x) = e4x
A. 
B. 
C. 
D. 
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Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cot ? = -3, sec ? > 0Find cos 
.
A. - 
B. - 
C. 
D. 
Mathematics
Determine whether the matrix is in row-echelon form. If it is, determine if it is also in reduced row-echelon form.
A) row-echelon form and reduced row-echelon form
B) row-echelon form
C) neither
Mathematics
Divide, if possible. Write the answer in simplest form.4
÷ 2
A. 3
B. 2
C. 2
D. 2
Mathematics