Determine whether the graph opens upward or downward.y = -2x2 + 20x - 55
A. Upward
B. Downward
Answer: B
Mathematics
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Test the vector field F to determine if it is conservative.F = -cos x cos yi + sin x sin yj - sec2 zk
A. Conservative B. Not conservative
Mathematics
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = -9x4 + 8x + 7
A. x-axis B. origin C. y-axis D. x-axis, y-axis, origin E. none
Mathematics
Solve the problem. Give the answer as a simplified radical expression.Find the perimeter of a triangle with sides measuring 2
, 5
, and 3
meters.
A. 19
+ 15
meters
B. 34
meters
C. 19
+ 15 meters
D. 19 + 15
meters
Mathematics
Multiply or divide as indicated.
? 
÷ 
A. 
B. 
C. 
D. 
Mathematics