Subtract.-230 - (-440)

A. 210
B. -210
C. 670
D. -670


Answer: A

Mathematics

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Mathematics

Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°

A. - 
B.
C. - 
D.

Mathematics

Find the angle between v and w. Round to one decimal place, if necessary.v = i + j and w = i + j - k

A. 0° B. 66° C. 35.3° D. 90°

Mathematics

Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.

A. function
domain: all real numbers
range: {y|-1 ? y ? 1}
intercepts: (-?, 0), (- , 0), (0, 0), (, 0), (?, 0) 
symmetry: origin
B. function
domain: {x|-? ? x ? ?}
range: {y|-1 ? y ? 1}
intercepts: (-?, 0), (- , 0), (0, 0), (, 0), (?, 0) 
symmetry: origin
C. function
domain: {x|-1 ? x ? 1}
range: {y|-? ? y ? ?}
intercepts: (-?, 0), (- , 0), (0, 0), (, 0), (?, 0) 
symmetry: none
D. not a function

Mathematics