Simplify.The volume of a spherical shell with outer radius R and inner radius r is 
Write this formula without parentheses and without multiplication signs.
A. V = 
- r3
B. V = 
C. V = 
D. V = 4?R3 - 4?r3
Answer: B
Mathematics
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Find the area of the triangle.
A. A = 5
m2
B. A = 16
m2
C. A = 8
m2
D. A = 2
m2
Mathematics
Factor completely.33x4y2 + 54x3y2 - 24x2y2
A. x2y2(x - 2)(11x + 4) B. 3x2y2(x + 2)(11x - 4) C. 3(x + 2)(11x - 4) D. 3x2y2(x + 2)(11x + 4)
Mathematics
Find the exact value. Do not use a calculator.cot 570°
A. - 
B. 
C. - 
D. 
Mathematics
Simplify the expression.
5
A. 
B. 
C. 
D. 
Mathematics