Solve the problem.The shape and density of a thin shell are indicated below. Find the coordinates of the center of mass.Shell: cone x2 + y2 - z2 = 0 between z = 1 and z = 3Density: constant
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Provide an appropriate response. Elvira purchases 18 Halloween masks for a party. If her total bill was $107.10, estimate the average cost of each mask by rounding to one nonzero digit. Find the exact cost.
A. $2,000; $1,927.80 B. $5.50; $5.95 C. $5; $5.95 D. $10; $5.95
Mathematics
Graph the function.y = 
? 4x + 1
A. 
B. 
C. 
D. 
Mathematics
Graph. Label any intercepts and determine the slope of the line. If the slope is undefined, state this.x = -7
A. x-intercept: (-7, 0), m: - 
B. x-intercept: (0, -7), m: 0
C. x-intercept: (0, 0), m: -7
D. x-intercept: (-7, 0), m: undefined
Mathematics
Using the variable x, write the interval as an inequality.
A. 3 ? x ? 7 B. x < 3 or x > 7 C. 3 < x ? 7 D. x < 3 or x ? 7
Mathematics