Solve and simplify.
+ y = 
A. y = 
B. y = 
C. y = 
D. y = 
Answer: A
Mathematics
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Determine whether the relation is a function. Give the domain and range.{(7, -9), (-3, 0), (3, 7), (-1, -3)}
A. function; domain: {-3, -1, 3, 7}; range: {-9, -3, 0, 7} B. not a function; domain: {-3, -1, 3}; range: {-9, -3, 0, 7}
Mathematics
Solve.Approximate to the nearest hundredth the volume of a sphere with a radius of 5 centimeters. Use 3.14 for ?.
A. 294.38 cu cm B. 523.33 cu cm C. 4186.67 cu cm D. 104.67 cu cm
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Find the area.
A. 1350 m2 B. 291 m2 C. 315 m2 D. 157.5 m2
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Use a graphing utility to find the inverse of the matrix, if it exists. Round answers to two decimal places, if necessary. 
A. 
B. 
C. 
D. 
Mathematics